Allen-Bradley SLC 500 L511, L514, L524, L531, L532, L533, L541, L542, L543, L551, L552, L553 programmable logic controller User manual

, DF1 full-duplex, DF1 half-duplex

master/slave, ASCII, and DF1 radio modem protocols

—

DH-485

, DF1 full-duplex, DF1 half-duplex

master/slave, ASCII, and DF1 radio modem protocols channel 1 —

(1)

An 1761-NET-AIC interface is required when connecting to a DH-485 network.

—

DH+ protocol

—

Ethernet

—

EtherNet TCP/IP protocol

Protocol Options

EtherNet TCP/IP Protocol - Standard Ethernet, utilizing the TCP/IP protocol, is used as the backbone network in many office and industrial buildings. Ethernet is a local area network that provides communication between various devices at 10/100 Mbps. This network provides the same capabilities as DH+ or DH-485 networks, plus:

• SNMP support for Ethernet network management.

• optional dynamic configuration of IP addresses by using a

BOOTP/DHCP utility.

• SLC 5/05 Ethernet data rate up to 40 times faster than SLC 5/04

DH+ messaging.

• ability to message entire SLC 5/05 data files.

• much greater number of nodes on a single network possible compared to DH-485 (32) and DH+ (64).

Data Highway Plus (DH+) Protocol - The Data Highway Plus protocol is used by the PLC-5 family of processors and the SLC 5/04 processor.

This protocol is similar to DH-485, except that it can support up to 64 devices (nodes) and runs at faster communication (baud) rates.

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36 Selecting Your Hardware Components

DH-485 Protocol - The SLC 500 processors have a DH-485 channel that supports the DH-485 communication network. This network is a multi-master, token-passing network protocol capable of supporting up to 32 devices (nodes). This protocol allows:

• monitoring data and processor status, along with program uploading and downloading of any device on the network from one location.

• SLC processors to pass data to each other (peer-to-peer communication).

• operator interface devices on the network to access data from any SLC processor on the network.

DF1 full-duplex protocol - DF1 full-duplex protocol (also referred to as DF1 point-to-point protocol) lets two devices communicate with each other at the same time. This protocol allows:

• transmission of information across modems (dial-up, leased line, radio, or direct cable connections).

• communication to occur between Allen-Bradley products and third-party products.

DF1 half-duplex protocol (master and slave) - DF1 half-duplex protocol provides a multi-drop single master/multiple slave network capable of supporting up to 255 devices (nodes). This protocol also provides modem support and is ideal for SCADA (Supervisory Control and Data Acquisition) applications because of the network capability.

ASCII protocol - The ASCII protocol provides connection to other

ASCII devices, such as bar code readers, weigh scales, serial printers, and other intelligent devices.

DF1 radio modem protocol - The DF1 radio modem protocol, optimized for use with radio modem networks, is a hybrid between

DF1 full-duplex protocol and DF1 half-duplex protocol. DF1 radio modem:

• supports Store and Forward capability.

• uses a node address (0...254) on channel 0.

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Selecting Your Hardware Components 37

SLC Communication Options

Communication

Protocol

SLC 5/01

DH-485 peer-to-peer receive only

DH-485 via RS232 port

DF1 via RS232 port

(full-duplex or half-duplex master or slave)

— receive only

(1)

ASCII via RS232 port

Data Highway Plus

(DH+)

Ethernet

— receive only

(2)

—

DeviceNet

—

SLC 5/02

— receive only

Supply Worksheet found on page 234.

(2)

Processor

SLC 5/03 receive and initiate receive and initiate receive and initiate

(9) receive and initiate receive and initiate receive and initiate

(5)

SLC 5/04

— receive and initiate

(9) receive and initiate receive and initiate receive and initiate

SLC 5/05

— receive and initiate

(9) receive and initiate receive and initiate receive and initiate

(5)

ControlNet

—

— receive and initiate

(3) receive and initiate

(4) receive and initiate

(6) receive and initiate

(3)(7) receive and initiate

(4)(8) receive and initiate

(6) receive and initiate

(3)(7) receive and initiate

(4)(8) receive and initiate receive and initiate

(3)(7) receive and initiate

(4)(8)

(1)

A 1747-KE or 1770-KF3 interface is required to bridge from DF1 (full-duplex or half-duplex slave only) to DH485 network.

(2)

A ControlLogix gateway with a 1746-DHRIO interface and a 1756-DH485 interface is required to bridge from DH+ to DH-485 network.

(3)

A 1747-SDN module is required for scanning I/O and for explicit messaging on DeviceNet network.

(4)

A 1747-SCNR module is required for scanning I/O and for explicit messaging on ControlNet network.

(5)

The SLC 5/04’s channel-to-channel passthru feature may be used to bridge between DH+ and DH-485 network or between DH+ and DF1 full-duplex network (DH+ to DF1 full-duplex passthru available starting with OS401). Another option is to use the 1785-KE interface to bridge between DH+ and DF1 full-duplex or DH+ and DF1 half-duplex master/slave network.

(6)

A 1761-NET-ENI interface is required to bridge from DF1 full-duplex to Ethernet network.

(7)

A 1761-NET-DNI interface is required to bridge from DF1 to DeviceNet network.

(8)

A 1747-KFC15 module or 1770-KFC15 interface is required to bridge from DF1 to ControlNet network.

(9)

If using 1747-AIC interface for isolation, connect to DH-485 network using 1747-PIC interface. If using a 1761-NET-AIC interface for isolation, connect directly to DH-485 network with 1747-CP3 serial cable (or equivalent RS-232 null-modem cable).

TIP

The 1785-KE module requires the use of a 1771 series chassis and power supply.

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38 Selecting Your Hardware Components

Selecting Discrete I/O

Modules

There are three types of discrete I/O modules: input, output, and combination. They are available in a wide variety of densities including 4, 8, 16, and 32 point and can interface to ac, dc, and TTL voltage levels. Output modules are available with solid-state ac, solid-state dc, and relay contact type outputs.

For a complete listing of discrete I/O modules and specifications, contact your Allen-Bradley sales office for the latest selection guide, publication 1747-SG001.

Selecting Specialty I/O

Modules

The SLC 500 family offers specialty I/O modules that enhance your control system. Modules range in function from analog interface to motion control, from communication to high-speed counting.

For a complete listing of specialty I/O modules and their specifications, contact your Allen-Bradley sales office for the latest selection guide, 1747-SG001.

Selecting Power Supplies

To select a power supply, you need:

• power supply specifications.

• power supply worksheet, one for each chassis.

• SLC 500 Systems Selection Guide, publication 1747-SG001.

When configuring a modular system, you must have a power supply for each chassis. Careful system configuration will result in the best performance. Excessive loading of the power supply outputs can cause a power supply shutdown or premature failure.

There are three different ac power supplies and four dc power supplies. For ac power supplies, the 120/240V selection is made by a jumper. Place the jumper to match the input voltage.

ATTENTION

Ensure that the power supply jumper is in the correct position before supplying power to the SLC 500 system or personal injury or damage to the system may result.

SLC power supplies have an status indicator that illuminates when the power supply is functioning properly.

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DH-485

Network

Selecting Your Hardware Components 39

1746-P7 Current Capacity

24V dc

Output

Current

5V dc

Output

Current

0.87 A 3.6 A

0.625 A

2.64 A

0.46A

2.0 A

10V 12.2V15V

19.2V

30V

Input Voltage (dc)

Example for Selecting Power Supplies

Select a power supply for chassis 1 and chassis 2 in the control system below.

Chassis 1 Chassis 2

1747-AIC Interface

1747-PIC Interface Personal

Computer

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40 Selecting Your Hardware Components

Chassis 1

Chassis 2

Slot Numbers

Input module

Transistor output module

1747-IV8

1746-OB8

0.050

0.135

3 Triac output module 1746-OA16 0.370

Peripheral device Isolated link coupler 1747-AIC 0.000

Total Current:

Description

Processor unit

Cat. No.

1747-L511

Power Supply at

5V dc (Amps)

Power Supply at

24V dc (Amps)

0.090

0.000

0.645

0.000

0.085

(1)

The 1746-P1 power supply is sufficient for Chassis #1. The internal current capacity for this power supply is 2 A at 5V dc,

0.46 A at 24V dc.

Slot Numbers

3, 4, 5, 6

Description Cat. No.

Power Supply at

5V dc (Amps)

0.090

Processor unit

Analog output modules

1747-L514

Output module 1746-OW16 0.170

Combination module 1746-IO12 0.090

1746-NO4I 0.220

(4 x 0.055)

Power Supply at

24V dc (Amps)

0.000

0.180

0.070

0.780

(4 x 0.195)

Peripheral device Isolated link coupler 1747-AIC

Peripheral device Interface converter 1746-PIC

Total Current:

0.000

Not applicable

0.570

0.085

Not applicable

1.115

(1)

The 1746-P4 power supply is sufficient for Chassis #2. The internal current capacity for this power supply is 10 A at 5V dc,

2.88 A at 24V dc; not to exceed 70 W.

Example Worksheet for Selecting a 1746 Power Supply

If you have a multiple chassis system, make copies of the Power

For a detailed list of device load currents, refer to the SLC 500 Modular

Chassis and Power Supplies Technical Data, publication 1746-TD003.

TIP

Consider future system expansion when selecting a power supply.

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Selecting Your Hardware Components 41

Slot

Procedure

1. For each slot of the chassis that contains a module, list the slot number, the catalog number of the module, and its 5V and 24V maximum currents. Also include the power consumption of any peripheral devices that may be connected to the processor other than a DTAM or PIC device—the power consumption of these devices is accounted for in the power consumption of the processor.

Chassis Number

Slot Number Cat. No.

1 Maximum Currents at 5V dc at 24V dc

Chassis Number

Slot Number Cat. No.

2 Maximum Currents at 5V dc at 24V dc

1747-L511

1746-IV8

1746-OB8

1746-OA16

0.090 A

0.050 A

0.135 A

0.370 A

0.000 A Slot

Slot

1747-L514

1746-OW16

1746-NO4I

1746-IO12

0.090 A

0.170 A

0.055 A

0.090 A

0.000 A

0.180 A

0.195 A

0.070 A

Peripheral Device

1747-AIC 0.085 A Peripheral Device

Peripheral Device

1747-AIC 0.085 A

2.Add the loading currents of all the system devices at 5 and 24V dc to determine the

Total Current.

0.645 A 0.085 A 2.Add the loading currents of all the system devices at 5 and 24V dc to determine the

Total Current.

0.570 A 1.115 A

3.For 1746-P4 power supplies, calculate the total power consumption of all system devices. If you are not using a 1746-P4 power supply, go to step 4.

Current

Total Current at 5V dc 0.645 A

Multiply by = Watts

5V 3.225 W

Current

Total Current at 5V dc 0.570 A

Multiply by = Watts

5V 2.850 W

26.76 W Total Current at 24V dc

0.085 A 24V

User Current at 24V dc

0.500 A 24V

Add the Watts values to determine Total Power

2.040 W Total Current at 24V dc

1.115 A 24V

12.00 W User Current at 24V dc

0.500 A 24V

17.26 W Add the Watts values to determine Total Power

12.00 W

41.61 W

(cannot exceed 70 Watts) (cannot exceed 70 Watts)

4.Choose the power supply from the list of catalog numbers shown below. Compare the Total Current required for the chassis with the Internal Current capacity of the power supplies. Be sure that the Total Current consumption for the chassis is less than the Internal Current Capacity for the power supply, for both 5V and 24V loads.

Cat. No.

Internal Current

Capacity at 5V dc at 24V dc

Internal Current

Capacity at 5V dc at 24V dc

1746-P1

1746-P2

1746-P3

1746-P4 (see step 3)

2.0 A

5.0 A

3.6 A

10.0 A

0.46 A

0.96 A

0.87 A

2.88 A

1746-P1

1746-P2

1746-P3

1746-P4 (see step 3)

2.0 A

5.0 A

3.6 A

10.0 A

0.46 A

0.96 A

0.87 A

2.88 A

1746-P5

1746-P6

1746-P7

(1) 12V dc input

24V dc input

Required Power Supply

5.0 A

2.0 A

3.6 A

0.96 A

0.46 A

0.87 A

1746-P1

1746-P5

1746-P6

1746-P7

(1)

12V dc input

24V dc input

Required Power Supply

5.0 A

2.0 A

3.6 A

0.96 A

0.46 A

0.87 A

1746-P4

(1)

See 1746-P7 current capacity graph on page 39.

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42 Selecting Your Hardware Components

Selecting Enclosures

The enclosure protects the equipment from atmospheric contamination. Standards established by the National Electrical

Manufacturer’s Association (NEMA) define enclosure types, based on the degree of protection an enclosure will provide. Use a fan to circulate the air of sealed enclosures that use convection cooling to dissipate heat. Select a NEMA-rated enclosure that suits your application and environment. The enclosure should be equipped with a disconnect device. To calculate the heat dissipation of your

controller, see appendix H.

Selecting Operator

Interfaces

Use an operator interface to program and/or monitor your SLC 500 controller. You can choose from several Allen-Bradley operator interface devices.

Programming with a Personal Computer

Contact Rockwell Software or your local Allen-Bradley distributor for specifications and availability of software packages available to program the SLC 500 Modular Controllers.

AIC+ Advanced Interface Converter (1761-NET-AIC)

The AIC+ advanced interface converter provides communication links between various networked devices. It has three communication ports: one for DH-485 and two for RS-232. The AIC+ converter is compatible with a variety of SLC and MicroLogix controllers and peripherals.

1747-PIC RS-232/DH485 Interface Converter

For communication with a SLC 5/01, SLC 5/02, or SLC 5/03 processor, you can use an RS-232/DH-485 interface convertor (catalog number

1747-PIC) between the computer and SLC controller. The converter includes a 279.4 mm (11 in.) ribbon cable, already attached to the converter, for connection to the computer serial port and a catalog number 1746-C10 cable for connection to the controller.

If you are using an SLC 5/03, SLC 5/04, or SLC 5/05 processor, you do not need the 1747-PIC interface. You can program via the RS-232 channel using DF1 full-duplex protocol or DH485 protocol and RS-232 program cable (catalog number 1747-CP3).

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Selecting Your Hardware Components 43

1747-UIC USB to DH485 Interface Converter

For communication with an SLC 5/01 through SLC 5/05 processor, you can connect the 1747-UIC interface between the computer’s USB port and the SLC controller. The 1747-UIC interface features an RS-232 port for communication with SLC 5/03 and later processors and an RS-485 port for communication with SLC 5/03 and previous processors.

Monitoring with a Data Table Access Module

The Data Table Access Module (DTAM) is a plant floor device that lets you access data file information, change operating modes, monitor and clear processor faults, and transfer the user program between

RAM and an EEPROM memory module with any SLC 5/01, SLC 5/02, or SLC 5/03 (except for the 1747-L533 processor) processor. You cannot use it to create new programs. Important features of DTAM include:

• shorthand addressing, which provides easier access to data files.

• display prompts in six, user-selectable languages: English,

French, German, Italian, Spanish, and Japanese.

• UL listed to US and Canadian Safety Standards.

• NEMA type 12 and 13 enclosures.

• point-to-point interface to an SLC family processor, or as a network device on a DH-485 network.

Monitoring with a PanelView or PanelView Plus Operator

Terminal

The PanelView or PanelView Plus operator terminals provide operator interface capabilities in space-saving, flat-panel designs. Offering optimum viewing angles, these electronic operator interfaces feature pixel graphics and high-performance functionality in both color and monochrome displays. The PanelView operator terminals let you enter input by using function keys or a touch screen, depending upon the model.

All PanelView and PanelView Plus operator terminals are available with DF1 or DH-485 (RS-232) communication capability, letting them communicate directly with channel 0 on an SLC 5/03, SLC 5/04, or SLC

5/05 processor. The larger versions also offer DH-485 (RJ-45), DH+,

Remote I/O, Ethernet, DeviceNet, and ControlNet network connectivity.

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44 Selecting Your Hardware Components

Selecting a Memory

Module for the SLC 5/01 and

SLC 5/02 Processors

You can plug these optional EEPROM (Electrically Erasable

Programmable Read Only Memory) memory modules into the SLC 500 controller. With a memory module, you can:

• save the contents of the processor RAM for storage purposes.

• load the contents of the EEPROM memory into the processor

RAM.

Adapter sockets (catalog number 1747-M5) are required when inserting EEPROMs or UVPROMs into the programming and erasing equipment.

To program a memory module, see your programming software user manual.

EEPROM Memory Modules

These optional memory modules provide a non-volatile memory back-up in a convenient modular form. The modules plug into a socket on the processor.

You can store (save) your program in the EEPROM by inserting it into the processor and programming software to download the program.

You can use an EEPROM module as a master, or you can use an archived processor file as the source by using the software PROM translator utility.

Adapter sockets are required when inserting memory modules into commercially available PROM programmer. The memory module fits into the adapter socket and then into a PROM programmer.

ATTENTION

Make sure the adapter is inserted properly into the programming equipment or damage could result.

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Memory Module Compatibility

Cat. No.

Description

1747-M1 1 K User Words EEPROM

1747-M2 4 K User Words EEPROM

1747-M5 Adapter Socket

Use with this processor type

SLC 5/01

1747-L511 1747-L514

SLC 5/02

1747-L524

Selecting Your Hardware Components 45

Memory Backup for the 1747-L511, SLC 5/01 Processor

The curve below illustrates the ability of the memory back-up capacitor to maintain the contents of the RAM in a 1747-L511 processor. To back up the memory for a longer period of time, a lithium battery, catalog number 1747-BA, is required.

Time

(Days)

Capacitor Memory Back-up Time VS Temperature

0 5

(41˚F)

(50˚F)

(59˚F)

(68˚F)

(77˚F)

(86˚F)

(95˚F)

(104˚F)

(113˚F)

(122˚F)

(131˚F)

(140˚F)

Temperature °C (°F)

Selecting a Memory

Module for SLC 5/03,

SLC 5/04, and SLC 5/05

Processors

The memory module for the SLC 5/03, SLC 5/04, and SLC 5/05 processors is called Flash EPROM (Flash Erasable Programmable Read

Only Memory). Flash EPROMs combine the programming versatility of

EEPROMs with the security precautions of UVPROMs. This means that you have the option of leaving your EPROM programs write-protected or unprotected. Write-protect the EPROM by using either your software or a PROM programmer.

The memory modules consist of a Flash EPROM mounted on a circuit board with a connector and plastic housing.

Adapter sockets (catalog number 1747-M15) are required when inserting memory modules into commercially available PROM

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46 Selecting Your Hardware Components programmer. The 1747-M15 Series B adapter socket is required for use with the memory module (catalog number 1747-M13).

ATTENTION

Make sure the adapter is inserted properly in the programming equipment or damage could result.

See the table below for details on the Flash EPROM and adapter socket.

Memory Module Compatibility

Cat. No.

Description

1747-M13 Supports up to 64 K of user-memory backup

Use with this processor type

SLC 5/03 SLC 5/04

1747-L531, 1747-L532,

1747-L533

1747-L541, 1747-L542,

1747-L543

(Series C

OS302 or later)

(Series C

OS401 or later)

SLC 5/05

1747-L551, 1747-L552,

1747-L553

(Series C

OS501 or later)

To program a memory module, refer to your programming software user manual or help resource. Follow this procedure to program a memory module.

1. Set the memory module configuration bits (S:1/10 to S:1/12) in your offline program file. Refer to SLC 500 Instruction Set

Reference Manual, publication 1747-RM001, for details on the

Memory Module Configuration Bits.

2. Download your program file to your processor.

3. Go online with the processor and burn the program to the

EEPROM memory module (per the instructions outlined in your programming software user manual or help resource).

EEPROM Burning Options

You can burn a program into an EEPROM memory module using a processor that is the same or different from the one used to run the program. When burning EEPROMs, keep the following conditions in mind:

• The processor burning the EEPROM must be of the same type and have the same OS version or lower than the target processor.

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Selecting Your Hardware Components 47

• The program size cannot exceed the processor memory size. For instance, an SLC 5/01 4 K processor can burn an EEPROM for a

SLC 5/01 1 K processor as long as the program does not exceed

1 K.

• The I/O and chassis configuration of the burning processor does not have to match the I/O configuration of the program being burned.

• You do not have to enter the Run mode before burning an

EEPROM. If the run mode is entered and the chassis configuration does not match, a major fault will occur. If you burn an EEPROM while in the fault mode, the fault will also be saved in the EEPROM.

The following table summarizes the above conditions as to the type of processor you can use to burn EEPROMs for other processors.

EEPROM Burning Options

To burn EEPROMs for these processors

Use these processors

SLC

5/01

(1K)

SLC

5/01

(4K)

SLC

5/02

(4K)

SLC 5/01 (1K) •

SLC 5/01 (4K) 1 K max

SLC 5/02 (4K)

SLC 5/03 (8K)

1 K max

•

SLC

5/03

(8K)

•

SLC

5/03

(16K)

SLC

5/03

(32K)

SLC 5/03 (16K)

SLC 5/03 (32K)

8 K max

•

16 K max

8 K max

16 K max

•

SLC 5/04 (16K)

SLC

5/04

(16K)

SLC

5/04

(32K)

SLC

5/04

(64K)

•

SLC 5/04 (32K)

SLC 5/04 (64K)

16 K max

•

32 K max

16 K max

32 K max

•

SLC 5/05 (16K)

SLC

5/05

(16K)

•

SLC 5/05 (32K)

SLC 5/05 (64K)

16 K max

• valid combination

SLC

5/05

(32K)

SLC

5/05

(64K)

16 K max

•

32 K max

16 K max

32 K max

•

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48 Selecting Your Hardware Components

Selecting Isolation

Transformers

If there is high frequency conducted noise in or around your distribution equipment, use an isolation transformer in the ac line to the power supply. This type of transformer provides isolation from your power distribution system and is often used as a step down transformer to reduce line voltage. Any transformer used with the controller must have a sufficient power rating for its load. This power rating is generally expressed in voltamperes (VA).

To select an appropriate isolation transformer, calculate the power required by the chassis power supply (or supplies if more than one chassis in system) and any input circuits and output loads that are connected through this transformer.

You can find the power requirement (VA rating) for the chassis power

supplies in the specifications starting on page 179. The power

requirement for the input circuits is determined by the number of inputs, the operating voltage, and the nominal input current. The power requirement for output loads is determined by the number of outputs, the load voltage, and load current.

For example, if you have a 1746-P1 power supply, a 16-point ac input module, catalog number 1746-IA16, (12 mA at 120V ac) and a 16-point ac triac output module, catalog number 1746-OA16, (0.5A at 120V ac), the power consumed would be:

135VA + (16)(120V)(0.012 A) + (16)(120V)(0.5 A) = 1118VA

IMPORTANT

In this case, 0.5 A is the maximum rating of the triac output at 30

°C (86 °F). If the load draws less than 0.5 A, this figure may be reduced accordingly. The output portion of the VA calculation should reflect the current requirements of selected loads.

In general, we recommend that the transformer is oversized to provide some margin for line voltage variations and other factors.

Typically a transformer that is 25% larger than the calculated VA is sufficient.

Most industrial environments are susceptible to power transients or spikes. To help insure fault-free operation and protection of equipment, use suppression devices on power line to the equipment in addition to the isolation equipment.

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Selecting Your Hardware Components 49

Special Considerations

The recommendations given previously provide favorable operating conditions for most controller installations. Some applications may involve adverse conditions, such as excessive line voltage variations and/of excessive noise, as described below. Additional measures can be taken to minimize the effect of these conditions.

Class I, Division 2 Applications

IMPORTANT

When installing peripheral devices (for example, push buttons, lamps) into a hazardous environment, ensure that they are Class

I, Division 2 certified, or determined to be safe for the environment.

Excessive Line Voltage Variations

The best solution for excessive line voltage variation is to correct any feeder problems in your distribution system. Where this does not solve the line variation problem, or in certain critical applications, use a constant voltage transformer. If you require a constant voltage transformer, connect it to the power supply and all input devices connected to the SLC 500 controller.

Connect output devices on the same power line, but their connection along the power line is normally made before the constant voltage transformer. A constant voltage transformer must have a sufficient power rating for its load.

Excessive Noise

When operating the SLC 500 controller in an environment with a high amount of electrical noise, give special consideration to the possibility of electrical interference.

The following reduces the effect of electrical interference.

• SLC 500 controller design features

• Proper mounting of controller within an enclosure

• Proper equipment grounding

• Proper routing of wires (power, communication, control lines)

• Proper suppression added to noise generating devices

Potential sources of noise include inductive loads, such as relays, solenoids, and motor starters when operated by hard contacts like push buttons or selector switches. Suppression may be necessary

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50 Selecting Your Hardware Components when such loads are connected as output devices or when connected to the same supply line that powers the controller.

Lack of surge suppression on inductive loads may contribute to processor faults and sporadic operation. RAM can be corrupted (lost) and I/O modules may appear to be faulty or reset themselves.

For extremely noisy environments, use a memory module and program it for auto-loading on processor fault or power cycle for quick recovery.

Selecting Surge Suppressors

Most output modules have built-in surge suppression to reduce the effects of high voltage transients. However, you should use an additional suppression device if an output module is being used to control an inductive device such as:

• relays.

• motor starters.

• solenoids.

• motors.

Additional suppression is especially important if your inductive device is in series with or parallel to a hard contact such as:

• push buttons.

• selector switches.

By adding a suppression device directly across the coil of an inductive device, you reduce the effects of voltage transients caused by interrupting the current to that inductive device and prolong the life of the switch contacts. You also prevent electrical noise from radiating into system wiring. The diagram below shows an output module with a suppression device.

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Selecting Your Hardware Components 51

Surge Suppression Diagram

+ dc or L1 ac or dc

Output Module

VAC/VDC

Out 0

Out 1

Out 2

Out 3

Out 4

Out 5

Out 6

Out 7

COM

Snubber dc COM or L2

If you connect an SLC 500 controller triac output to control an inductive load, use varistors to suppress noise. Choose a varistor that is appropriate for the application. We recommend the following surge suppressors for triac outputs when switching 120V ac inductive loads:

• Harris MOV, part number V220 MA2A

• Allen-Bradley MOV, catalog number 599-K04 or 599-KA04,

Series C or later.

Consult the varistor manufacturer’s data sheet when selecting a varistor for your application.

ATTENTION

Damage could occur to SLC 500 triac outputs if you use suppressors having RC networks and the triac load current is 15 mA or less.

Allen-Bradley surge suppressors recommended for use with

Allen-Bradley relays, contactors, and starters are shown in the table below.

Devices Requiring Surge Suppression

Device

Bulletin 509 Motor Starter

Coil Voltage

120V ac

240V ac

Bulletin 100 Contactor

Bulletin 709 Motor Starter

Bulletin 700 Type R, RM Relays

120V ac

240V ac

120V ac ac coil

Suppressor Cat. No.

599-K04

(1)

599-KA04

easy to reach. See the schematic on page 71.

199-FSMA1

(2)

, 199-GSMA1

()

199-FSMA2

(2)

1401-N10

(2) none required

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52 Selecting Your Hardware Components

Devices Requiring Surge Suppression

Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

12V dc

24V dc

48V dc

115-125V dc

Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

230-250V dc

Bulletin 700 Type N, P, or PK Relay 150V max, ac or dc

Miscellaneous electromagnetic devices limited to 35 sealed VA

150V max, ac or dc

199-FSMA9

199-FSM10

199-FSMA11

700-N24

(2)

(1)

Varistor

(2)

RC Type – Damage could occur with SLC 500 triac outputs if you use suppressors having RC networks and the load current is 15 mA or less.

Selecting Contact Protection

Inductive load devices such as motor starters and solenoids may require the use of some type of surge suppression to protect the controller output contacts. Switching inductive loads without surge suppression can significantly reduce the lifetime of relay contacts.

Surge Suppression for Inductive Load Devices

Surge Suppression for Inductive ac Load Devices

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Output Device

Output Device Output Device

Surge

Suppressor

Varistor RC Network

Surge Suppression for Inductive DC Load Devices

Output Device

Diode (A surge suppressor can also be used.)

Contact protection methods for inductive ac and DC output devices.

These surge suppression circuits connect directly across the load device. This reduces arcing of the output contacts. (High transient can cause arcing that occurs when switching off an inductive device.)

Selecting Your Hardware Components 53

Suitable surge suppression methods for inductive ac load devices include a varistor, an RC network, or an Allen-Bradley surge suppressor. These components must be appropriately rated to suppress the switching transient characteristic of the particular inductive device.

For inductive dc load devices, a diode is suitable. A diode, catalog number 1N4004, is acceptable for most applications.

A surge suppressor can also be used. See the table on page 51.

Locate the suppression device as close as possible to the load device.

Transistor Output Transient Pulses

This section applies to the following SLC 500 fixed I/O processors and

SLC 500 I/O modules that have transistor outputs.

Fixed I/O processors with transistor outputs

• 1747-L20E

• 1747-L20G

• 1747-L20L

• 1747-L20N

• 1747-L30L

• 1747-L40E

• 1747-L40L

I/O modules with transistor outputs

• 1746-OB8

• 1746-OBP8

• 1746-OV8

• 1746-OB16

• 1746-OB16E

• 1746-OB16EI

• 1746-OBP16

• 1746-OV16

• 1746-OVP16

• 1746-OB32

• 1746-OB32E

• 1746-OV32

For the SLC 500 products listed above, the maximum duration of the transient pulse occurs when minimum load is connected to the output. However, for most applications the energy of the transient pulse is not sufficient to energize the load.

ATTENTION

A transient pulse occurs in transistor outputs when the external dc supply voltage is applied to the common output terminals (for example, via the master control relay). The sudden application of voltage creates this transient pulse. (See the following graph.)

This condition is inherent in transistor outputs and is common to solid state devices. A transient pulse can occur regardless of the processor having power or not.

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54 Selecting Your Hardware Components

Transient Pulse

(On-State Load

Current)

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Duration of Transient (T)

Time

To reduce the possibility of inadvertent operation of devices connected to transistor outputs, adhere to the following guidelines:

• Either ensure that any programmable device connected to the transistor output is programmed to ignore all output signals until after the transient pulse has ended,

• Add an external resistor in parallel to the load to increase the on-state load current. The duration of the transient pulse is reduced when the on-state load current is increased.

The duration of the transient pulse is proportional to the load impedance. This is illustrated in the following graph.

Transient Pulse/Load Impedance Graph

1 100 200 300 400 500 600 700 800 900

On-State Load Current (mA)

100

Selecting Your Hardware Components 55

EXAMPLE

Increasing the load current by 100 mA decreases the transient time from approximately 7 ms to less than 2.5 ms. To calculate the size of the resistor added in parallel to increase the current, use the following information:

24V = your applied voltage

Need 100 mA of load current to reduce the transient to <2.5 ms.

(taken from graph).

R (W) = V (Volts)/I (Amps)

Resistor value (Ohms) = Applied voltage (Volts)/Desired current

(Amps) = 24/0.1 = 240 W

P (Watts) = 1

(Amps) x R (W)

Actual Power (Watts) = (Desired Current)

x Resistor Value =

(0.1)2 x 240 = 2.4 (Watts)

Resistor size = 2 x Actual power (Watts) = 4.8 W = approximately 5 W

Use a resistor rated for 240 W at 5 W to decrease the transient time from approximately 7 ms to less than 2.5 ms.

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56 Selecting Your Hardware Components

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System Installation Recommendations

Chapter

To help you install the SLC 500 programmable controller as safely and securely as possible, follow the specific recommendations in this chapter. For general installation guidelines, also refer to the requirements specific to your region.

• Europe: Reference the standards found in EN 60204 and your national regulations.

• United States: Refer to article 70E of the National Fire Protection

Association (NFPA). It describes electrical safety requirements for employee workplaces.

This chapter covers the following:

• System overview

• Typical installation

• Spacing your controllers

• Preventing excessive heat

• Grounding guidelines

• Master control relay

• Power considerations

• Safety considerations

• Preventive maintenance

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58 System Installation Recommendations

System Overview

Refer to the following sections when planning your system layout.

Environment and Enclosure

ATTENTION

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications

(as defined in IEC publication 60664-1), at altitudes up to 2000 m (6561.7 ft) without derating.

This equipment is considered Group I, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.

This equipment is supplied as open type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

See NEMA Standards publication 250 and IEC publication

60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as the

Allen-Bradley Industrial Automation Wiring and Grounding

Guidelines, publication 1770-4.1, for additional installation requirements pertaining to this equipment.

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System Installation Recommendations 59

Hazardous Location Considerations

Products marked CL1, DIV 2, GP A, B, C, D are suitable for use in

Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest

“T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local authority having jurisdiction at the time of installation.

WARNING

EXPLOSION HAZARD

• Do not disconnect equipment unless power has been removed or the area is known to be non-hazardous.

• Do not disconnect connections to this equipment unless power has been removed or the area is known to be non-hazardous. Secure any external connections that mate to this equipment using screws, sliding latches, threaded connectors, or other means provided with this product.

• Substitution of components may impair suitability for Class

I, Division 2.

• All wiring must comply with N.E.C. article 501-4(b).

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60 System Installation Recommendations

Typical Installation

The figure below consists of some components that make up a typical installation.

1. NEMA-rated enclosure suitable for your application and environment that shields your controller from electrical noise and airborne contaminants.

2. Disconnect device, to remove power from the system

3. Fused isolation transformer or a constant voltage transformer, as your application requires

4. Master control relay/emergency-stop circuit

5. Terminal blocks or wiring ducts

6. Suppression devices for limiting EMI

(electromagnetic interference) generation

(1)

(4)

MCR

(6)

(5)

(2) Disconnect

Device

(3) Isolation

Transformer

SLC 500

Controller

ATTENTION

Vertical mounting is not recommended due to thermal considerations.

Spacing Your Controller

The figure on the following page depicts acceptable layouts. Follow the recommended minimum spacing to allow for convection cooling within the enclosure. Air temperature in the enclosure must be kept within a range of 0 °C...60 °C (32 °F...140 °F).

IMPORTANT

Be careful of metal chips when drilling mounting holes for the controllers. Do not drill holes above a mounted SLC 500 controller.

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System Installation Recommendations 61

C SLC 500 Controller

IMPORTANT

The 1746-C9 and 1746-C16 cables have a rigid, unbendable shrink wrap applied at the end of each connector, which provides strain relief. When using these cables, provide at least

101.6 mm (4 in.) of clearance at the side of the chassis to allow for proper bend radius of the cable.

C SLC 500 Controller

1746-C9 Cable

1746-C7 Cable

SLC 500 Controller

1746-C9

Cable

B B

SLC 500 Controller

SLC 500

Recommended Spacing

A. 15.3...20.0 cm (6...8 in.) when using the 1746-C9 cable. If you mount two 13-slot chassis above each other, the distance cannot exceed 10.2...12.7 cm (4...5 in.).

B. Greater than 10.2 cm (4 in.).

C. Greater than 15.3 cm (6 in.).

D. 6.35...10.2 cm (2.5...4 in.) when using the 1746-C7 cable. If you are using a 1746-P4 power supply, your maximum spacing is 6.35 cm (2.5 in.).

SLC 500 Controller

1746-C9

Cable

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62 System Installation Recommendations

Preventing Excessive Heat

For most applications, normal convection cooling will keep the

SLC 500 controller components within the specified operating range of

0 °C...60 °C (32 °F...140 °F). Proper spacing of components within the enclosure is usually sufficient for heat dissipation.

In some applications, a substantial amount of heat is produced by other equipment inside or outside the enclosure. In this case, place blower fans inside the enclosure to assist in air circulation and to reduce hot spots near the SLC 500 controller.

Additional cooling provisions might be necessary when high ambient temperatures are encountered.

IMPORTANT

Do not bring in unfiltered outside air. It may introduce harmful contaminants of dirt that could cause improper operation or damage to components. In extreme cases, you may need to use air conditioning to protect against heat build-up within the enclosure.

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Grounding Guidelines

System Installation Recommendations 63

In solid-state control systems, grounding helps limit the effects of electrical noise due to electromagnetic interference (EMI). The ground path for the SLC 500 controller and its enclosure is provided by the equipment grounding conductor.

Scrape paint off panel to insure electrical connection between chassis and grounded metal panel.

Metal Panel

(Must be connected to earth ground.)

Size M4 or M5 (#10 or #12) Internal

Star Washer

4M or 5M (#10 or #12 phillips screw

Chassis

Mounting Tab

5.2 mm

(10

AWG) to Ground Bus

ATTENTION

The 1746 chassis, the enclosure, and other control devices must be properly grounded. All applicable codes and ordinances must be observed when wiring the SLC 500 controller system.

Connect Equipment Grounding Conductor to Ground Bus

Ground connections should run from the chassis and power supply on each SLC 500 controller and expansion unit to the ground bus.

Exact connections will differ between applications.

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64 System Installation Recommendations

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Ground Bus

Mounting

Ground Bus

Equipment Grounding Conductors

Ground Lug

Bolt - Size M5 or M6 (4.826 mm or 5.48 mm) hardware

Tapped Hole

Grounding-Electrode

Conductor to

Grounding-Electrode

System

Internal star washer - Size

M5 or M6 (#10 or #12)

• Use 2.54 cm (1 in.) copper braid or 5.2 mm 2

(#10 AWG) copper wire to connect each chassis, the enclosure, and a central ground bus mounted on the back-panel.

• Use a steel enclosure to guard against electromagnetic interference (EMI).

• Make sure the enclosure door viewing window is a laminated screen or a conductive optical substrate (to block EMI).

• Install a bonding wire for electrical contact between the door and the enclosure; do not rely on the hinge.

IMPORTANT

Do not lay one ground lug directly on top of the other; this type of connection can become loose due to compression of the metal lugs. Place the first lug between a star washer and a nut with a captive star washer. After tightening the nut, place the second lug between the first nut and a second nut with a captive star washer.

Connect Ground Bus to Grounding-Electrode System

The grounding-electrode system is at earth-ground potential and is the central ground for all electrical equipment and ac power within any facility. Use a grounding-electrode conductor to connect the ground bus to the grounding-electrode system. Use at minimum 8.3 mm

(#8

AWG) copper wire for the grounding-electrode conductor to guard against EMI. The National Electrical Code specifies safety requirements for the grounding-electrode conductor.

Europe: Reference EN 60204 for safety information on grounding.

Also, refer to Allen-Bradley Programmable Controller Grounding and

System Installation Recommendations 65

Safety Ground

2 mm

(14 AWG)

Wiring Guidelines, publication 1770-4.1, and System Design for

Control of Electrical Noise, publication GMC-RM001.

United States: An authoritative source on grounding requirements for most installations is the National Electrical Code. Also, refer to

Allen-Bradley Programmable Controller Grounding and Wiring

Guidelines, publication 1770-4.1 and System Design for Control of

Electrical Noise, publication GMC-RM001.

In addition to the grounding required for the SLC 500 controller and its enclosure, you must also provide proper grounding for all controlled devices in your application. Care must be taken to provide each device with an acceptable grounding path.

This figure shows you how to run ground connections from the chassis to the ground bus. The recommended grounding method is shown below. Using a ground bus reduces the electrical resistance at the connection.

Ground Connection Paths

Nearest Ground Bus

Earth Ground

8.37 mm

(8 AWG) wire

Functional Ground

5.26 mm

(10 AWG)

(1)

Safety Ground

2 mm

(14 AWG)

(1)

Safety Ground

2 mm

(14 AWG)

(1)

(1) Keep safety ground connection to panel as short as possible.

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66 System Installation Recommendations

Special Grounding Considerations for dc Applications using

1746-P3 (previous to revision B)

This information describes special wiring considerations for the

1746-P3 power supply that is not labeled as revision (REV) B or later-.

Keep wire length as short as possible.

ATTENTION

Any voltage applied to the 1746-P3 DC NEUT terminal will be present at the SLC logic ground and the processor DH-485 port.

To prevent unwanted potentials across the logic ground of the controller and/or damage to the SLC chassis, the DC NEUTRAL of the external dc power source must be either isolated from the SLC chassis ground, or connected to earth ground.

1746-P3

Processor

External dc Power Source

+24 VDC

DC NEUT

Chassis

Ground

Earth Ground

Door

Not Used

+24V dc

DC Neut

Chassis

Ground

A jumper wire is recommended between the DC NEUT and Chassis

Ground of the external power source.

DH-485

Port

Safety Ground

SLC 500 Chassis

SLC Logic Ground

Earth Ground

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System Installation Recommendations 67

Not Used

+24V dc

DC Neut

Chassis

Ground

Safety Ground

IMPORTANT

SLC 500 series A chassis (1746-A4, 1746-A7, 1746-A10, and

1746-A13) manufactured before November 1992 have a resistor between the logic ground and chassis ground as the drawing on the following page illustrates. This resistor could be damaged if the wiring recommendation described within the attention box above is not followed. See the figure on the following page for the location of the resistor. SLC 500 series A chassis (1746-A4,

1746-A7, 1746-A10, and 1746-A13) with a manufacture date of

November 1992 or later do not have this resistor. SLC 500 series B chassis have a 1 MW resistor that limits the current between logic ground and chassis ground.

SLC Chassis

1746-P3

Controller Logic Ground

Functional Ground

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68 System Installation Recommendations

Determining the Date of the SLC 500 Series A Chassis

The date of the chassis is found within the serial number imprinted on the chassis nameplate on the right side of the chassis.

Master Control Relay

Right Side

Month

Year

CAT

1746 - A7

SLC 500

RACK

SER

SERIAL NO.

A7 -1195A1357

UL SA

MADE IN U. S. A.

A hard-wired master control relay (supplied by you) provides a convenient means for emergency controller shutdown. Since the master control relay allows the placement of several emergency-stop switches in different locations, its installation is important from a safety standpoint. Overtravel limit switches or mushroom head push buttons are wired in series so that when any of them opens, the master control relay is de-energized. This removes power to input and output device circuits.

ATTENTION

Never alter these circuits to defeat their function, since serious injury and/or machine damage could occur.

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IMPORTANT

If you are using a dc power supply, interrupt the dc side rather than the ac side to avoid the additional delay of power supply turn-on and turn-off. The dc power supply should receive its power directly from the fused secondary of the transformer.

Connect the power to the dc input and output circuits through a set of master control relay contacts.

Place the main power disconnect switch where operators and maintenance personnel have quick and easy access to it. If you mount a disconnect switch inside the controller enclosure, place the switch

System Installation Recommendations 69 operating handle on the outside of the enclosure, so that you can disconnect power without opening the enclosure.

Whenever any of the emergency-stop switches are opened, power to input and output devices is stopped.

When you use the master control relay to remove power from the external I/O circuits, power continues to be provided to the controller’s power supply so that diagnostic indicators on the processor can still be observed.

The master control relay is not a substitute for a disconnect to the controller. It is intended for any situation where the operator must quickly de-energize I/O devices only. When inspecting or installing terminal connections, replacing output fuses, or working on equipment within the enclosure, use the disconnect to shut off power to the rest of the system.

IMPORTANT

The operator must not control the master control relay with the processor. Provide the operator with the safety of a direct connection between an emergency-stop switch and the master control relay.

Emergency-Stop Switches

Adhere to the following points concerning emergency-stop switches.

• Do not program emergency-stop switches in the controller program. Any emergency-stop switch should turn off all machine power by turning off the master control relay.

• Observe all applicable local codes concerning the placement and labeling of emergency-stop switches.

• Install emergency-stop switches and the master control relay in your system. Make certain that relay contacts have a sufficient rating for your application. Emergency-stop switches must be

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70 System Installation Recommendations

Power Considerations

Refer to the following sections regarding power.

Common Power Source

All chassis power supplies should have the same power source as the input and output devices. This helps reduce the chance of electrical interference due to multiple sources and grounds as well as helps maintain system integrity if power is interrupted.

The processor detects the absence of power to any chassis in the system. If power to any chassis is lost (or not yet applied), the CPU

FAULT status indicator turns on and all controller outputs in the local chassis are de-energized. Output states in any remote chassis are determined by configuration settings at that chassis.

This fault detection makes it necessary that you apply power to the expansion chassis before you apply power to the chassis containing the processor to avoid an unwanted fault. Of course, applying power in sequence is unnecessary if all chassis have a common power source.

Isolation Transformer

In many industrial applications, a step-down transformer is required to reduce line voltage to 120 or 240V ac. This transformer also provides isolation to protect equipment from high voltage transients that may be generated on your power distribution system.

ATTENTION

Your SLC 500 power supply can be damaged by voltage surges when switching inductive loads such as motors, motor starters, solenoids, and relays. To avoid damage to your SLC 500 power supply in these applications, use an isolation transformer to isolate the power supply from harmful voltage surges.

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System Installation Recommendations 71

Grounded ac Power-Distribution System with Master-Control

Relay

Disc.

Suppressor

The I/O circuits form a net inductive load switched by the MCR contacts.

Therefore, a suppressor is needed across the line at the load side of the MCR contacts.

Incoming ac

FUSE

Multiple E-stop

Switches

1FU

2FU

3FU

Start

MCR

Controller

Power Supply

Step-down

Transformer

Grounded Conductor

To Motor

Starters

Back-panel

Ground Bus

Enclosure

Wall

MCR

Suppressor

Equipment-

Grounding

Conductors

Grounding-electrode

Conductor to

Grounding-electrode

System

GND

N or L2

Connect when applicable

MCR Suppressor User dc

Supply

Output

Actuator

MCR

+ –

Input

Sensor Input Module

Wiring Arm

Output Module

Wiring Arm

Power Supply Required Input Voltage Characteristics

• The applied input voltage must be at or below 132V ac RMS

(265V ac RMS in 240 Volt mode).

• Minimum acceptable value of the applied input voltage must be above 85V ac RMS (170V ac RMS in 240 Volt mode).

• The frequency of the applied voltage must be within 47...63 Hz.

• Both the positive and negative half cycles must be symmetrical and conform to these requirements.

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72 System Installation Recommendations

Loss of Power Source

The chassis power supplies are designed to withstand brief power losses without affecting the operation of the system. The time the system is operational during power loss is called program scan hold-up time after loss of power. The duration of the power supply hold-up time depends on the number, type, and state of the I/O modules, but is typically 20 ms...3 s. When the duration of power loss reaches a limit, the power supply signals the processor that it can no longer provide adequate dc power to the system. This is referred to as a power supply shutdown. The power supply status indicator is turned off.

In multi-chassis systems, power outages of 20...300 ms in duration can cause a remote power fail error to occur. You can clear this error by cycling power to your system or by using a programming device.

Input States on Power Down

The power supply hold-up time as described above is generally longer than the turn-on and turn-off times of the input modules.

Because of this, the input state change from On to Off that occurs when power is removed may be recorded by the processor before the power supply shuts down the system. Understanding this concept is important. Write the user program to take this effect into account. For example, hard-wire power to one spare input. In the user program, check to be sure that one input is on; otherwise, jump to the end of the program and avoid scanning the logic. Use of a common power source as recommended in the previous section is assumed.

Power Supply Undervoltage Operation

SLC 500 controllers continue to operate (hold-up) for a short period of time if the input voltage to the power supply drops below the recommended operating voltage range. The controller continues to scan the user program and control I/O during this time. CPU hold-up time is 20 ms...3 s depending on the power supply and loading.

SLC 500 controllers turn OFF (stop scanning and disable outputs) if input voltage to the power supply is removed or drops below the recommended operating range for a period exceeding the CPU hold-up time. The controller resumes operation automatically when the input voltage is restored to normal.

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System Installation Recommendations 73

If the input voltage to the 1746-P7 power supply falls into a range of

4...9V for a period exceeding the CPU hold-up time, the controller turns OFF and will not turn back ON until the input voltage is increased to 11V dc.

SLC 500 Operation with 24V dc User Power Overcurrent Condition

Power Supply Cat. No.

1746-P1 series A (made in Japan)

SLC Operation power supply shutdown, CPU fault

Recovery Procedure

Reload user program

1746-P1 series A (made in Malaysia - current production)

24V dc user shutdown, CPU continues Correct overcurrent condition

1746-P2 series A and B

1746-P2 series C

1746-P4 series A

1746-P5 series A

1746-P6 series A power supply shutdown, CPU fault Reload user program

24V dc user shutdown, CPU continues Correct overcurrent condition power supply shutdown, CPU fault Reload user program

24V dc user shutdown, CPU continues Correct overcurrent condition

ATTENTION

For 1746-P1 (made in Malaysia), 1746-P2 series C, 1746-P5 series A, and 1746-P6 series A power supply, to avoid unexpected operation due to 24V dc user power shutdown, monitor the 24V dc user output with a 24V dc input channel.

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74 System Installation Recommendations

Safety Considerations

Safety considerations are an important element of proper system installation. Actively thinking about the safety of yourself and others, as well as the condition of your equipment, is of primary importance.

Disconnecting Main Power

Locate the main power disconnect switch where operators and maintenance personnel have quick and easy access to it. Ideally, the disconnect switch is mounted on the outside of the enclosure, so that it can be accessed without opening the enclosure. In addition to disconnecting electrical power, de-energize all other sources of power

(pneumatic and hydraulic) before working on a machine or process controlled by an SLC controller.

Safety Circuits

Circuits installed on the machine for safety reasons, like overtravel limit switches, stop push buttons, and interlocks, should always be hard-wired directly to the master control relay. These devices must be wired in series so that when any one device opens, the master control relay is de-energized thereby removing power to the machine. Never alter these circuits to defeat their function. Serious injury or machine damage could result.

Power Distribution

There are some points about power distribution that you should be aware of. First, the master control relay must be able to inhibit all machine motion by removing power to the machine I/O devices when the relay is de-energized.

Second, if you are using a dc power supply, interrupt the load side rather than the ac line power. This avoids the additional delay of power supply turn-on and turn-off. The dc power supply should be powered directly from the fused secondary of the transformer. Power to the dc input and output circuits is connected through a set of master control relay contacts.

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System Installation Recommendations 75

Periodic Tests of Master Control Relay Circuit

Any part can fail, including the switches in a master control relay circuit. The failure of one of these switches would most likely cause an open circuit, which would be a safe power-off failure. However, if one of these switches shorts out, it no longer provides any safety protection. These switches should be tested periodically to assure they will stop machine motion when needed.

Preventive Maintenance

The printed circuit boards of the controller must be protected from dirt, oil, moisture and other airborne contaminants. To protect these boards, the controller must be installed in an enclosure suitable for the environment. The interior of the enclosure should be kept clean and the enclosure door should be kept closed whenever possible.

Regularly inspect your terminal connections for tightness. Loose connections may cause improper functioning of the controller or damage the components of the system.

ATTENTION

To ensure personal safety and to guard against damaging equipment, inspect connections with incoming power off.

The National Fire Protection Association (NFPA) provides recommendations for electrical equipment maintenance. Refer to article 70B of the NFPA for general requirements regarding safety related work practices.

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76 System Installation Recommendations

Notes:

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Chapter

Mounting Your SLC 500 Control System

This chapter provides mounting dimensions for:

• 4, 7, 10, and 13-slot chassis.

• link coupler (AIC).

• Data Terminal Access Module (DTAM).

• DTAM Plus Operator Interface.

• DTAM Micro Operator Interface.

• AIC+ Advanced Interface Converter.

• DNI DeviceNet Network Interface.

• ENI EtherNet Network Interface.

Mounting Modular

Hardware Style Units

You can mount the modular hardware style units directly to the back panel of your enclosure using the mounting tabs and #10 or #12 screws. The torque requirement is 3.4 Nm (30 lb-in) maximum.

(3) (2) (1)

11 Dia.

(0.433)

4-slot Modular Chassis

(2.76)

5.5 Dia.

(0.217)

1.0

(0.04)

158

(6.22)

140

(5.51)

171

(6.73)

171

(6.73) 140

(5.51)

(0.55)

5.5 Dia

(0.217)

235

(9.25)

Front View

261

(10.28)

215

(8.46)

(1.77) millimeters

(inches)

145

(5.71)

Left Side View

(1) Dimensions for 1746-P1 power supply.

(2) Dimensions for 1746-P2, 1746-P3, 1746-P5, 1746-P6, and 1746-P7 power supplies.

(3) Dimensions for 1746-P4 power supply.

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78 Mounting Your SLC 500 Control System

7-slot Modular Chassis

. Dia.

(0.217)

175

(6.89)

1.0

(0.04)

158

(6.22)

(3) (2) (1)

11 Dia.

(0.433)

140

(5.51)

171

140

(5.51)

(6.73)

171

(6.73)

158

(6.22)

(3) (2) (1)

11 Dia.

(0.433)

5.5 Dia

(0.217)

Front View

366

(14.41)

320

(12.60)

340

(13.39)

(1.77)

(0.55) millimeters (inches)

5.5 Dia.

(0.217)

10-slot Modular Chassis

140

(5.51)

(2.17)

Left Side View

140

(5.51)

171

(6.73)

140

(5.51)

1.0

(0.04)

145

(5.71)

5.5 Dia

(0.217)

Publication 1747-UM011F-EN-P - May 2007

(0.55)

140

(5.51)

455

(17.91)

481

(18.94)

435

(17.13)

Front View millimeters (inches)

(1) Dimensions for 1746-P1 power supply.

(2) Dimensions for 1746-P2, 1746-P3, 1746-P5, 1746-P6, and 1746-P7 power supplies.

(3) Dimensions for 1746-P4 power supply.

145

(5.71)

Left Side View

Mounting Your SLC 500 Control System 79

158

(6.22)

(3) (2) (1)

11 Dia.

(0.433)

5.5 Dia.

(0.217)

13-slot Modular Chassis

105

(4.13)

140

(5.51)

(2.17)

140

(5.51)

171

(6.73)

(0.55)

5.5 Dia

(0.217)

140

(5.51)

540

(21.26)

586

(23.07)

560

(22.05)

Front View

1.0

(0.04) millimeters

(inches)

171

(6.73) 140

(5.51)

145

(5.71)

Left Side View

(1) Dimensions for 1746-P1 power supply.

(2) Dimensions for 1746-P2, 1746-P3, 1746-P5, 1746-P6, and 1746-P7 power supplies.

(3) Dimensions for 1746-P4 power supply.

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80 Mounting Your SLC 500 Control System

Link Coupler (AIC)

R 2.74

(0.11)

R 5.5

(0.22)

146

(5.75)

159

(6.24)

137

(5.41)

7.1

(0.28)

(1.50)

Front View

(0.55)

5.5 Dia.

(0.216) millimeters

(inches)

Right Side View

4.3

(0.17)

172

(6.75)

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Mounting Your SLC 500 Control System 81

Data Table Access Module (DTAM, DTAM Plus, and DTAM Micro)

A D

Front View Right Side View

Data Table Access Module Dimensions in millimeters (inches)

A B C

DTAM

DTAM Plus

DTAM Micro

152 (6.0)

215.9 (8.5)

137.2 (5.4

140 (5.5)

165.1 (6.5)

175.3 (6.9)

69 (2.76)

45.7 (1.8)

127 (5.0)

193 (7.6)

99.1 (3.9)

Publication 1747-UM011F-EN-P - May 2007

82 Mounting Your SLC 500 Control System

AIC+ Advanced Interface Converter (1761-NET-AIC)

DeviceNet Interface (1761-NET-DNI)

Ethernet Interface (1761-NET-ENI)

52.07 mm

(2.05 in.)

118 mm

(4.64 in.)

107 mm

(4.20 in.)

6.6 mm

(0.26 in.)

Allow 15 mm (0.6 in.) clearance for DIN rail latch movement during installation and removal.

27.7 mm

(1.09 in.)

71.4 mm

(2.81 in.)

Publication 1747-UM011F-EN-P - May 2007

Chapter

Identifying the Components of Your Processor

SLC 5/01 Processor

Hardware Features

This chapter covers the following:

• SLC 5/01 hardware features

• SLC 5/02 hardware features

• SLC 5/03 hardware features

• SLC 5/04 hardware features

• SLC 5/05 hardware features

• Keyswitch for the SLC 5/03, SLC 5/04, and SLC 5/05 processors

The SLC 5/01 processor provides:

• two choices of program memory size - 1 K or 4 K instructions.

• control of up to 3840 input and output points.

• powerful ladder logic programming instruction set.

• subroutines.

• a DH-485 communication channel (peer-to-peer communication response to message commands only).

• capacitor backup for the 1747-L511 module; battery backup for the 1747-L514 module.

• program using your programming software.

• UL listed to US and Canadian Safety Standards, CE compliant,

C-Tick marked.

The figure on page 84 shows the hardware components of the

SLC 5/01 processor (1747-L511 and 1747-L514).

Publication 1747-UM011F-EN-P - May 2007

84 Identifying the Components of Your Processor

SLC 5/01 Hardware Components

Memory

Module and

Socket

SLC 5/01 CPU

PC RUN

CPU FAULT

FORCED I/O

BATTERY LOW

Battery

(provides back-up power for the

CMOS RAM)

DH-485

Channel 1

Left Side View Serial Number and Catalog Number Front View

The table below provides a general explanation of the SLC 5/01 processor status indicators.

SLC 5/01 Status Indicators

Processor

Status

Indicator

(1)

When It Is

PC RUN

(Color: red)

On (steady)

CPU FAULT

(Color: red)

Indicates that

The processor is in the Run mode.

Off The processor is in a mode other than Run.

Flashing (at power up) The processor has not been configured.

Flashing (during operation)

The processor detects a major error either in the processor, chassis or memory.

FORCED I/O

(Color: red)

On (steady)

Off

Flashing

A fatal error is present (no communication).

There are no errors.

One or more input or output addresses have been forced to an On or Off state but the forces have not been enabled.

The forces have been enabled.

BATTERY LOW

(Color: red)

On (steady)

Off

On (steady)

Off

No forces are present or enabled.

The battery voltage has fallen below a threshold level or the battery and the battery jumper are missing.

The battery is functional, or the battery jumper is present.

(1)

See chapter 10 for more information on status indicator status.

Publication 1747-UM011F-EN-P - May 2007

SLC 5/02 Processor

Hardware Features

Identifying the Components of Your Processor 85

The SLC 5/02 processor offers an enhanced instruction set, increased diagnostic capabilities, and expanded communication capabilities beyond the SLC 5/01 processors and fixed controllers. The SLC 5/02 processor provides:

• program memory size of 4 K instructions.

• control of up to 4096 input and output points.

• PID - used to provide closed loop process control.

• indexed addressing.

• interrupt capability.

• user fault routines.

• ability to handle 32-bit signed math functions.

• built-in DH-485 communication channel (initiation of peer-to-peer communication).

• battery-backed RAM.

• communication status indicator; when on, the status indicator indicates that there is communication activity on the DH-485 network.

• program using your programming software.

• UL listed to US and Canadian Safety Standards, CE compliant,

C-Tick marked.

The figure on page 86 shows some of the hardware components of

the SLC 5/02 processor.

Publication 1747-UM011F-EN-P - May 2007

86 Identifying the Components of Your Processor

SLC 5/02 Hardware Components

SLC 5/02 CPU

RUN COMM

CPU FAULT

FORCED I/O

BATTERY LOW

Memory Module and Socket

Front View

Left Side View

Publication 1747-UM011F-EN-P - May 2007

Serial Number and

Catalog Number

Battery (provides back-up power for the CMOS RAM)

DH-485

Channel 1

The table below provides a general explanation of each processor status indicator (for both the SLC 5/02 series B and C processor).

SLC 5/02 Status Indicators

Processor

Status

Indicator

(1)

When It Is

RUN

(Color: red)

On (steady)

CPU FAULT

(Color: red)

Off

Flashing (at power up)

Flashing (during operation)

On (steady)

FORCED I/O

(Color: red)

Off

Flashing

On (steady)

Off

Indicates that

The processor is in the Run mode.

The processor is in a mode other than Run.

The processor has not been configured.

The processor detects a major error either in the processor, expansion chassis or memory.

A fatal error is present (no communication).

There are no errors.

One or more input or output addresses have been forced to an On or Off state but the forces have not been enabled.

The forces have been enabled.

No forces are present or enabled.

Identifying the Components of Your Processor 87

Processor

Status

Indicator

(1)

BATTERY LOW

(Color: red)

COMM

(Color: red)

When It Is

On (steady)

Off

On (steady)

Off

Indicates that

The battery voltage has fallen below a threshold level or the battery is missing or not connected.

The battery is functional.

The SLC 5/02 processor is connected to an active

DH485 network.

The SLC 5/02 processor is not receiving data.

(1)

See chapter 10 for more information on status indicator status.

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88 Identifying the Components of Your Processor

SLC 5/03 Processor

Hardware Features

The SLC 5/03 processor offers:

• program memory size of 8 K, 16 K, 32 K.

• control of up to 4096 input and output points.

• online programming (includes runtime editing).

• built-in DH-485 channel.

• built-in RS-232 channel, supporting:

– DF1 full-duplex for point-to-point communication; remotely via a modem, or direct connection to programming or operator interface devices. (Use a 1747-CP3 cable for direct connection.).

– DF1 radio modem for radio modem (peer-to-peer) communication.

– DF1 half-duplex master/slave for SCADA type

(point-to-multipoint) communication.

– DH-485 (Serves as a second DH-485 channel. Use a

1761-NET-AIC interface with a 1747-CP3, 1761-CBL-AC00, or

1761-CBL-AP00 cable to connect to the DH-485 network.).

– ASCII I/O for connection to other ASCII devices, such as bar code readers, serial printers, and weigh scales.

• channel-to-channel passthru (DH-485 to DF1 full-duplex, DF1 half-duplex Master, DF1 radio modem, or DH-485).

• remote I/O passthru.

• DeviceNet passthru.

• built-in real-time clock/calendar.

• 2 ms Selectable Timed Interrupt (STI).

• 0.50 ms Discrete Input Interrupt (DII).

• advanced math features - trigonometric, PID, exponential, floating-point, and the compute instruction.

• indirect addressing.

• logical ASCII addressing in PLC-5 type messages.

• flash PROM provides firmware upgrades without physically changing EPROMS.

• optional flash EPROM memory module available.

• keyswitch - RUN, REMote, PROGram (clear faults).

• battery-backed RAM.

• additional instructions such as swap and scale with parameters

(SLC 5/03 OS302 processor or later).

• multi-point list (SLC 5/03 OS302 processor or later).

• UL listed to US and Canadian Safety Standards, CE compliant,

C-Tick marked.

The figure on page 89 shows some of the hardware components of

the SLC 5/03 processors (1747-L531, 1747-L532, and 1747-L533).

Publication 1747-UM011F-EN-P - May 2007

Identifying the Components of Your Processor 89

SLC 5/03 Hardware Components

SLC 5/03 CPU

RUN

FLT

BATT

FORCE

DH485

RS232

RUN REM PROG

Battery

(provides back-up power for the CMOS

RAM)

Memory

Module

Keyswitch

DH-485

Channel 1

DH-485, DF1, or ASCII

Channel 0

Operating System Download Protection Jumper

– do not move unless updating processor

Operating System firmware.

Left Side View

Serial Number and

Catalog Number

Front View

The table below provides a general explanation of each processor status indicator on the SLC 5/03 processor.

Processor

Status

Indicator

(1)(2)

RUN

(Color: green)

FLT

(Color: red)

BATT

(Color: red)

FORCE

(Color: amber)

When It Is

On (steady)

Flashing (during operation)

Off

Flashing (at power up)

SLC 5/03 Status Indicators

Indicates that

The processor is in the Run mode.

The processor is transferring a program from RAM to the memory module.

The processor is in a mode other than Run.

The processor has not been configured.

Flashing (during operation) The processor detects a major error either in the processor, chassis or memory.

On (steady) A fatal error is present (no communication).

Off

On (steady)

Off

Flashing

There are no errors.

The battery voltage has fallen below a threshold level, or the battery is missing or not connected.

The battery is functional.

One or more input or output addresses have been forced to an On or Off state but the forces have not been enabled.

On (steady)

Off

The forces have been enabled.

No forces are present or enabled.

Publication 1747-UM011F-EN-P - May 2007

90 Identifying the Components of Your Processor

Processor

Status

Indicator

(1)(2)

DH-485

(Color: green)

RS-232

(Color: green)

When It Is

On (steady)

Flashing

Off

On (flashing)

DF1/ASCII mode

Off

DF1/ASCII mode

On (steady)

DH-485 mode

Flashing

DH-485 mode

Off

DH-485 mode

Indicates that

The Communication Active bit (S:1/7) is set in the System Status file and the processor is actively communicating on the DH-485 network.

The processor is trying to establish communication, but there are no other active nodes on the DH-485 network.

A fatal error is present (no communication).

The SLC 5/03 processor is transmitting on the network.

The SLC 5/03 processor is not transmitting on the network.

The Communications Active bit (S:33/4) is set in the System Status file and the processor is actively communicating on the DH-485 network.

The processor is trying to establish communication, but there are no other active nodes on the DH-485 network.

A fatal error is present (no communication).

(1)

If the status indicators on the SLC 5/03 processor turn on in a predefined sequence, the SLC 5/03 processor is in the process of downloading a new operating system.

(2)

See chapter 10 for more information on status indicator status.

Publication 1747-UM011F-EN-P - May 2007

SLC 5/04 Processor

Hardware Features

Identifying the Components of Your Processor 91

The SLC 5/04 processors offer:

• program memory sizes of 16 K, 32 K, or 64 K.

• high-speed performance - 0.90 ms/K typical.

• control of up to 4096 input and output points.

• online programming (includes runtime editing).

• built-in DH+ channel, supporting:

– high-speed communication (57.6 Kbaud, 115.2 Kbaud, and

230.4 Kbaud).

– messaging capabilities with SLC 500, PLC-2, PLC-5, and

ControlLogix processors.

• built-in RS-232 channel, supporting:

– DF1 full-duplex for point-to-point communication; remotely via a modem, or direct connection to programming or operator interface devices. (Use a 1747-CP3, 1761-CBL-AC00, or 1761-CBL-AC00 cable for direct connection.).

– DF1 radio modem for radio modem (peer-to-peer) communication.

– DF1 half-duplex Master/Slave for SCADA type

(point-to-multipoint) communication.

– DH-485 (Use a 1761-NET-AIC with a 1747-CP3 cable to connect to the DH-485 network.).

– ASCII I/O for connection to other ASCII devices, such as bar code readers, serial printers, and weigh scales.

• channel-to-channel passthru (DH+ to DF1 full-duplex, DF1 half-duplex Master, DF1 radio modem, or DH-485).

• remote I/O passthru.

• DeviceNet passthru.

• built-in real-time clock/calendar.

• 1 ms Selectable Timed Interrupt (STI).

• 0.50 ms Discrete Input Interrupt (DII).

• advanced math features - trigonometric, PID, exponential, floating point, and the compute instruction.

• indirect addressing.

• logical ASCII addressing in PLC-5 type messages.

• flash PROM provides firmware upgrades without physically changing EPROMS.

• optional flash EPROM memory module available.

• keyswitch - RUN, REMote, PROGram (clear faults).

• battery-backed RAM.

• additional instructions such as swap and scale with parameters.

• multi-point list.

Publication 1747-UM011F-EN-P - May 2007

92 Identifying the Components of Your Processor

Battery

(provides back-up power for the

CMOS RAM)

• UL listed to US and Canadian Safety Standards, CE compliant,

C-Tick marked.

This figure below shows some of the hardware components of the

SLC 5/04 processors (1747-L541, 1747-L542, or 1747-L543).

SLC 5/04 Hardware Components

SLC 5/04 CPU

RUN

FLT

BATT

FORCE

DH+

RS232

RUN REM PROG

Memory

Module

Keyswitch DH+

Channel 1

DH-485, DF1, or ASCII

Channel 0

Operating System Download Protection Jumper

– do not move unless updating processor

Operating System firmware.

Left Side View

Serial Number and

Catalog Number

Front View

The table below provides a general explanation of each processor status indicator on the SLC 5/04 processors.

SLC 5/04 Status Indicators

Processor

Status

Indicator

(1)(2)

When It Is

RUN

(Color: green)

On (steady)

Flashing (during operation)

FLT

(Color: red)

Indicates that

The processor is in the Run mode.

The processor is transferring a program from

RAM to the memory module.

Off The processor is in a mode other than Run.

Flashing (at power up) The processor has not been configured.

Flashing (during operation)

The processor detects a major error either in the processor, chassis, or memory.

On (steady)

Off

A fatal error is present (no communication).

There are no errors.

Publication 1747-UM011F-EN-P - May 2007

Identifying the Components of Your Processor 93

Processor

Status

Indicator

(1)(2)

BATT

(Color: red)

FORCE

(Color: amber)

(Color: green or red)

RS-232

(Color: green)

When It Is

On (steady)

Off

Flashing

On (steady)

Off

On (steady)

Flashing green

Flashing red

On (steady)

DF1/ASCII mode

Off

DF1/ASCII mode

On (steady)

DH-485 mode

Flashing

DH-485 mode

Indicates that

The battery voltage has fallen below a threshold level, or the battery is missing or not connected.

The battery is functional.

One or more input or output addresses have been forced to an On or Off state but the forces have not been enabled.

The forces have been enabled.

No forces are present or enabled.

The Communications Active bit (S:1/7) is set in the System Status file and the processor is actively communicating on the DH+ network.

The processor is trying to establish communication, but there are no other active nodes on the DH+ network.

There are duplicate nodes on the link with the same node address.

The SLC 5/04 processor is transmitting on the network.

The SLC 5/04 processor is not transmitting on the network.

The Communications Active bit (S:33/4) is set in the System Status file and the processor is actively communicating on the DH-485 network.

The processor is trying to establish communication, but there are no other active nodes on the DH-485 network.

A fatal error is present (no communication).

Off

DH-485 mode

(1)

If the status indicators on the SLC 5/04 processor turn on in a predefined sequence, the SLC 5/04 processor is in the process of downloading a new operating system.

(2)

See chapter 10 for more information on status indicator status.

Publication 1747-UM011F-EN-P - May 2007

94 Identifying the Components of Your Processor

SLC 5/05 Processor

Hardware Features

The SLC 5/05 processors offer:

• program memory sizes of 16 K, 32 K, or 64 K.

• high-speed performance - 0.90 ms/K typical.

• control of up to 4096 input and output points.

• online programming (includes runtime editing).

• built-in 10/100Base-T Ethernet channel, supporting:

– high-speed computer communication using TCP/IP.

– messaging capabilities with SLC 5/05, PLC-5, and

ControlLogix processors on Ethernet.

– SNMP for standard Ethernet network management.

– BOOTP for optional dynamic IP address assignment.

• built-in RS-232 channel, supporting:

– DF1 radio modem for radio modem (peer-to-peer) communication.

– DF1 half-duplex master/slave for SCADA type

(point-to-multipoint) communication.

– DH-485 (Use a 1761-NET-AIC with a 1747-CP3 cable to connect to the DH-485 network.).

– ASCII I/O for connection to other ASCII devices, such as bar code readers, serial printers, and weigh scales.

• Channel-to-channel passthru (Ethernet to DF1 full-duplex, DF1 half-duplex Master, DF1 radio modem, or DH-485).

• remote I/O and DeviceNet passthru.

• built-in real-time clock/calendar.

• 1 ms Selectable Timed Interrupt (STI).

• 0.50 ms Discrete Input Interrupt (DII).

• advanced math features - trigonometric, PID, exponential, floating point, and the compute instruction.

• indirect addressing.

• logical ASCII addressing in PLC-5 type messages.

• flash PROM provides firmware upgrades without physically changing EPROMS through the Ethernet port.

• optional flash EPROM memory module available.

• keyswitch - RUN, REMote, PROGram (clear faults).

• battery-backed RAM.

• additional instructions such as swap and scale with parameters

• multi-point list.

Publication 1747-UM011F-EN-P - May 2007

Identifying the Components of Your Processor 95

• UL listed to US and Canadian Safety Standards, CE compliant,

C-Tick marked.

The figure below shows some of the hardware components of the

SLC 5/05 processors (1747-L551, 1747-L552, and 1747-L553).

SLC 5/05 Hardware Components

SLC 5/05 CPU

RUN

FLT

BATT

FORCE

ENET

RS232

RUN REM PROG

Battery

(provides back-up power for the

CMOS RAM)

Ethernet

Hardware

Address

Memory

Module xx:xx:xx

Operating System Download Protection Jumper

– do not move unless updating processor

Operating System firmware.

Left Side View

Keyswitch

Serial Number and

Catalog Number

Write-on area for IP Address

Front View

Channel 1

Ethernet

(10Base-T)

Channel 0

RS 232

(DH-485,

DF1, or

ASCII)

The table below provides a general explanation of the processor status indicators.

SLC 5/05 Status Indicators

Processor

Status

Indicator

When It Is

RUN

(Color: green)

On (steady)

Flashing (during operation)

FLT

(Color: red)

Indicates that

The processor is in the Run mode.

The processor is transferring a program from

RAM to the memory module.

Off The processor is in a mode other than Run.

Flashing (at power up) The processor has not been configured.

Flashing (during operation)

On (steady)

Off

The processor detects a major error either in the processor, chassis, or memory.

A fatal error is present (no communication).

There are no errors.

Publication 1747-UM011F-EN-P - May 2007

96 Identifying the Components of Your Processor

Processor

Status

Indicator

BATT

(Color: red)

When It Is

On (steady)

FORCE

(Color: amber)

Off

Flashing

On (steady)

Off

Solid green ENET

Channel 1

(Color:

green or red)

Flashing green

Flashing red

RS-232

Channel 0

(Color: green)

Off

On (steady)

DF1/ASCII mode

Off

DF1/ASCII mode

On (steady)

DH-485 mode

Flashing

DH-485 mode

Off

DH-485 mode

Indicates that

The battery voltage has fallen below a threshold level, or the battery is missing or not connected.

The battery is functional.

One or more input or output addresses have been forced to an On or Off state but the forces have not been enabled.

The forces have been enabled.

No forces are present or enabled.

The Ethernet port is functioning properly and is connected to an active Ethernet network.

The Ethernet port is functioning properly, connected to an active Ethernet network, and is transmitting packets.

A hardware or software fault has occurred and is being reported via a code. Contact

Allen-Bradley for assistance.

No Ethernet connection or processor halted.

The SLC 5/05 processor is transmitting on the network.

The SLC 5/05 processor is not transmitting on the network.

The Channel 0 Communications Active bit

(S:33/4) is set in the System Status file and the processor is actively communicating on the network.

The processor is trying to establish communication, but there are no other active nodes on the DH-485 network.

A fatal error is present (no communication).

Publication 1747-UM011F-EN-P - May 2007

Identifying the Components of Your Processor 97

Keyswitch for the

SLC 5/03, SLC 5/04, and SLC

5/05 Processors

The SLC 5/03, SLC 5/04, and SLC 5/05 processors include a 3-position keyswitch on the front panel that lets you select one of three modes of operation: RUN, PROGram, and REMote. You can remove the key in each of the three positions.

ATTENTION

Depending on the size of your user program, the processor can take up to 2.5 s to change modes when you change the position of the keyswitch from RUN to PROG or to REM. Do not use the keyswitch in place of a hardwired master control relay or an emergency-stop switch.

IMPORTANT

The SLC 5/01 and SLC 5/02 processors do not have a keyswitch.

Therefore, all modes must be changed via the communication channels.

RUN Position

This position places the processor in the Run mode. The processor scans/executes the ladder program, monitors input devices, energizes output devices, and acts on enabled I/O forces. You can only change the processor mode by changing the keyswitch position. You cannot perform online program editing.

To change the processor mode to Run, toggle the keyswitch from

PROG or REM to RUN. When the keyswitch is left in the RUN position, you cannot use a programmer/operator interface device to change the processor mode.

PROG Position

This position places the processor in the Program mode. The processor does not scan/execute the ladder program, and the controller outputs are de-energized. You can perform online program editing. You can only change the processor mode by changing the keyswitch position.

To change the processor mode to Program, toggle the keyswitch from

REM or RUN to PROG. When the keyswitch is left in the PROG position, you cannot use a programmer/operator interface device to change the processor mode.

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98 Identifying the Components of Your Processor

REM Position

This position places the processor in the Remote mode: either the

REMote Run, REMote Program, or REMote Test mode. You can change the processor mode by changing the keyswitch position or by changing the mode from a programmer/operator interface device. You can perform online program editing in this position.

To change the processor mode to REM, toggle the keyswitch from

RUN or PROG to REM. When the keyswitch is in the REM position, you can use a programmer/operator interface device to change the processor mode.

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Installing Your Hardware Components

Chapter

This chapter shows you how to install the following hardware components:

• Chassis

• Processor

• Modules

• Memory module

• Power supply

• Chassis interconnect cable

Compliance to European

Union Directives

This product is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.

EMC Directive

The analog modules are tested to meet Council Directive 89/336/EEC

Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file:

• EN 50081-2

EMC – Generic Emission Standard, Part 2 - Industrial Environment

• EN 50082-2

EMC – Generic Immunity Standard, Part 2 - Industrial Environment

This product is intended for use in an industrial environment.

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100 Installing Your Hardware Components

Install Your Chassis

Screw

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low

Voltage, by applying the safety requirements of EN 61131-2

Programmable Controllers, Part 2 – Equipment Requirements and

Tests.

For specific information required by EN61131-2, see the appropriate sections in this publication, as well as the industrial Automation,

Wiring and Grounding Guidelines for Noise Immunity, publication

1770-4.1.

The power supply support panel (left end panel) has screws as indicated in the following illustration. The center and right end panels are held in position by a molded latch and do not require screws.

Latch

Screw

Latch

Perform this procedure to install your chassis.

1. Drill holes in the back panel of the enclosure for chassis mounting tabs.

ATTENTION

Be careful of metal chips when drilling mounting holes for the SLC chassis. Do not drill holes above an SLC chassis if a processor and I/O modules are installed.

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Installing Your Hardware Components 101

2. Install the hardware for the top mounting tabs.

M4 or M5 (#10 or #12) phillips screw and star washer (or SEM screw)

TIP

Scrape paint off the back panel for an electrical connection between the chassis and back panel.

3. Slide the chassis over the installed hardware and tighten the screws.

ATTENTION

If the chassis mounting tabs do not lay flat before the screws are tightened, use additional washers as shims so the chassis will not warp when tightening the screws.

Warping the chassis could damage the backplane and cause poor connections.

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102 Installing Your Hardware Components

4. Leaving far-left and far-right tabs open for grounding, install the remaining tab hardware (for a four-slot chassis, leave both tabs open).

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Installing Your Hardware Components 103

Installing Your Processor

The processor always occupies the first slot of the first chassis. You can only install one processor per system.

ATTENTION

Never install, remove, or wire any module while power is applied. Also, do not expose processor modules to surfaces or other areas that may typically hold an electrostatic charge.

Electrostatic discharge can damage integrated circuits or semiconductors if you touch backplane connector pins. Follow these guidelines when you handle the power supplies.

• Touch a grounded object to discharge static potential.

• Do not touch the backplane connector or connector pins.

• Do not touch circuit components inside the power supply.

• Use a static-safe work station if available.

• Keep the power supplies in their static-shield packaging when not in use.

IMPORTANT

If the equipment is not installed and used as described in this manual, the protection provided by the equipment may be impaired.

IMPORTANT

If your processor has a battery — the battery is an option for the SLC 5/01 (1747-L511) processor — make sure it is connected before installing your processor into the chassis.

This provides memory backup for your processor should the controller power supply fail.

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104 Installing Your Hardware Components

Install Modules

Follow the steps below to install your modules.

1. Align the circuit board of the module with the card guide in the chassis.

Retainer Clip

Side View

Retainer Clip

2. Gently slide the module in until both top and bottom retainer clips are secured.

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3. Install a wire tie to secure your wiring and keep it neat. (If you feed the tie into one hole, it will be routed back out through the other.)

4. Cover any unused slots with card slot fillers (catalog number

1746-N2) to keep the chassis free from debris and dust.

5. To remove the module, press the retaining clips at the top and bottom of the module and slide the module out.

Install Your Memory

Module

Side View of SLC Processor

1747-L511, 1747 -L514, and 1747-L524

Installing Your Hardware Components 105

Always turn off power to the controller before removing the processor or inserting or removing the memory module. This guards against possible damage to the module and also undesired processor faults.

Memory modules are mounted in carriers or have connectors that are keyed to guard against improper installation.

ATTENTION

To avoid potential damage to the memory modules, handle them by the ends of the carrier or edges of the plastic housing.

Skin oil and dirt can corrode metallic surfaces, inhibiting electrical contact. Also, do not expose memory modules to surfaces or areas that may typically hold an electrostatic charge. Electrostatic charges can alter or destroy memory.

1. If the processor module is installed in the chassis, remove the module by pressing the retainer clips at both the top and bottom of the module and sliding it out.

2. Locate the socket (or connector if you have an SLC 5/03,

SLC 5/04, or SLC 5/05 processor) on the processor board. Then place the memory module into the socket or onto the connector and press firmly in place.

Side View of SLC Processor

1747-L531, 1747-L532, 1747-L533, 1747-L541, 1747-L542,

1747-L543, 1747-L551, 1747-L552, and 1747-L553

Memory

Module

Socket

Jumper J1

(Note: Jumper J1 not on 1747-L511.)

Memory

Module

Connector

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106 Installing Your Hardware Components

Processor Type

1747-L514, 1747-L524

1747-M1, -M2, -M3

3. Place jumper J1 as shown below.

1747-M4 Invalid Settings

1747-L511, 1747-L531,

1747-L532, 1747-l533,

1747-L541, 1747-L542,

1747-L543, 1747-L551,

1747-L552, 1747-L553

No Jumper J1 No Jumper J1 No Jumper J1

4. Install the processor module into the chassis.

5. Restore power to the controller.

Remove the Memory Module

Follow this procedure to remove the memory module.

1. Remove power and pull out the processor.

2. Grasp the carrier tabs (or connector for the SLC 5/03, SLC 5/04, and SLC 5/05 processor) with your thumb and index fingers, then gently but firmly lift upwards on either end of the memory module carrier.

3. When the end is partially raised, begin lifting the other end in the same manner. Repeat this until the memory module has been completely removed from the socket.

Install Your Power Supply

If you have multiple chassis configurations, install the chassis interconnect cable before installing the power supply.

See page 110.

Also, the power supply terminals accept two 2 mm

(#14 AWG) wires

and are marked as shown in the figure on page 108.

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Installing Your Hardware Components 107

Perform this procedure to install the power supply.

1. Align the circuit board with the card guide on the left side of the chassis. Slide the power supply in until it is flush with the chassis.

1.2 Nm (11 lb-in) maximum torque

2. Fasten the power supply to the chassis with the two Phillips head screws.

3. Place the jumper to match the input voltage. (This does not apply to 1746-P3, 1746-P5, 1746-P6, or 1746-P7 power supply which do not have a jumper.)

ATTENTION

Make jumper selection before applying power.

Hazardous voltage is present on exposed pins when power is applied.

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108 Installing Your Hardware Components

ATTENTION

If you connect or disconnect the wiring to the terminal blocks or if you insert or remove the power supply while the power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous.

Failure to remove power could cause injury to personnel and/or equipment.

POWER

Fuse

Jumper

Selection

100/120 Volts

200/240 Volts

1746-P1 and P2

User

Fuse

PWR OUT +24V dc

PWR OUT COM

120/240V ac

V ac NEUT

Chassis Ground

1746-P3

POWER

Jumper

Selection

85 to 132V ac

170 to 250V ac

1746-P4

POWER User PWR OUT +24V dc

PWR OUT COM

85 to 132V ac

Jumper

170 to 250V ac

L1: 85 to 132

/170 to 250V ac

L2: NEUT

Chassis Ground

Not Used

+24V dc

V dc NEUT

Chassis Ground

POWER

User

Power

1746-P5

PWR OUT +24V dc

PWR OUT COM

+125V dc

V dc NEUT

Chassis Ground

User

Power

1746-P5, -P6, and -P7

1746-P6

PWR OUT +24V dc

PWR OUT COM

+48V dc

V dc NEUT

Chassis Ground

User

Power

1746-P7

Not Used

+12/24V dc

V dc NEUT

Chassis Ground

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Installing Your Hardware Components 109

IMPORTANT

Terminal screws on the 1746-P1, 1746-P2, 1746-P3, 1746-P5,

1746-P6, and 1746-P7 power supply should be tightened with a maximum torque of 1 Nm (8.8 lb-in).

Terminal screws on the 1746-P4 power supply should be tightened with a max torque of 0.8 Nm (7 lb-in).

4. Connect the ground screw of the power supply to the nearest ground or ground bus. Use a #14 AWG 75 Deg. Copper wire

(Category 1 per Industrial Automation Wiring and Grounding

Guidelines, publication 1770-4.1) and keep the leads as short as possible. The 1746-P4 is shown below.

Chassis Ground

Tighten terminal screws to 0.8 Nm

(7 lb-in)

Nearest Ground Bus

5. Remove the warning label from the top of the power supply.

6. Connect line power to the power supply.

ATTENTION

If you have a 1746-P3 power supply, see page 66 for special

grounding considerations.

ATTENTION

For the 1746-P1, 1746-P2, 1746-P4, 1746-P5, and 1746-P6 power supplies, use PWR OUT +24V dc and PWR OUT COM terminals to

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110 Installing Your Hardware Components

Install Your Chassis

Interconnect Cable

power 24V dc sensors and loads. The terminals on the 1746-P1,

1746-P2, 1746-P5, and 1746-P6 power supply provide an isolated, nonfused 200 mA, 24V dc power supply. The terminals on the

1746-P4 power supply provide an isolated, nonfused 1 A, 24V dc power supply. (The 1746-P3 and 1746-P7 power supplies do not provide for an external power source.)

Three cables are available to link modular hardware chassis. Catalog number 1746-C7 cable is 152.4 mm (6 in.) in length and is used when connecting chassis side-by-side. Catalog number 1746-C9 is

914.4 mm (36 in.) in length and 1746-C16 is 1.27 m (50 in.) in length and are used to link one chassis below the other.

IMPORTANT

1746-C9 and 1746-C16 cables have a rigid, unbendable shrink wrap applied at the end of each connector, which provides strain relief. When using these cables, provide at least 101.6 mm (4 in.) of clearance at the side of the chassis to allow for proper bend radius of the cable.

ATTENTION

Do not use any cables other than those provided. Longer cables could affect the integrity of data communication between the chassis, possibly causing unsafe operation. Also, make sure the cable is properly secured to protect against the effects of shock and vibration.

In multiple chassis configurations, install the chassis interconnect cable before installing the power supply.

The cables are keyed for proper installation. The end of the cable that plugs into the right socket in the chassis has the key on the top of the connector. The opposite end of the cable has the key on the inside of the connector for insertion into the expansion chassis.

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Installing Your Hardware Components 111

Chassis Connections

SLC chassis where processor will be installed

To remove the cable, move the tabs on the socket outward and the connector pops out.

ATTENTION

The expansion cable must always exit the right end of the chassis with the processor and connect to the left end of the next I/O chassis.

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112 Installing Your Hardware Components

Notes:

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Chapter

Wiring Your I/O Modules

Defining Sinking and

Sourcing

This chapter describes how to wire your I/O modules. It covers the following:

• Defining sinking and sourcing

• Preparing your wiring layout

• Features of an I/O module

• Recommendations for wiring I/O devices

• Wiring your I/O modules

• Octal label kit installation

• Using removable terminal blocks

Sinking and sourcing are terms used to describe a current signal flow relationship between field input and output devices in a control system and their power supply.

• Field devices connected to the positive side (+V) of the field power supply are sourcing field devices.

• Field devices connected to the negative side (dc Common) of the field power supply are called sinking field devices.

To maintain electrical compatibility between field devices and the programmable controller system, this definition is extended to the input/output circuits on the discrete I/O modules.

• Sourcing I/O circuits supply (source) current to sinking field devices.

• Sinking I/O circuits receive (sink) current from sourcing field devices.

Europe: dc sinking input and sourcing output module circuits are the commonly used options.

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114 Wiring Your I/O Modules

Contact Output Circuits — ac or dc

Relays can be used for either ac or dc output circuits and accommodate either sinking or sourcing field devices. These capabilities are a result of the output switch being a mechanical contact closure, not sensitive to current flow direction and capable of accommodating a broad range of voltages.

This high degree of application flexibility makes contact output modules very popular and useful in control environments with a broad mix of electrical I/O circuit requirements.

Solid-State dc I/O Circuits

The design of dc field devices typically requires that they be used in a specific sinking or sourcing circuit depending on the internal circuitry of the device. DC input and output field circuits are commonly used with field devices that have some form of internal solid state circuitry that need a dc signal voltage to function.

Sourcing Device with Sinking Input Module Circuit

The field device is on the positive side of the power supply between the supply and the input terminal. When the field device is activated, it sources current to the input circuit.

Field Device I

Input

+ dc Power

Supply

_ dc

Input

Circuit dc Com

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Wiring Your I/O Modules 115

Sinking Device with Sourcing Input Module Circuit

The field device is on the negative side of the power supply between the supply and the input terminal. When the field device is activated, it sinks current from the input circuit.

Field Device

_ dc Power

Supply

Input

I dc

Input

Circuit

Vdc

Sinking Device with Sourcing Output Module Circuit

The field device is on the negative side of the power supply between the supply and the output terminal. When the output is activated, it sources current to the field device.

+ dc Power Supply

Field Device

Vdc

Out dc

Output

Circuit dc Com

Sourcing Device with Sinking Output Module Circuit

The field device is on the positive side of the power supply between the supply and the output terminal. When the output is activated, it sinks current from the field device.

+ dc Power Supply

Field Device

Vdc

Out dc

Output

Circuit dc Com

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116 Wiring Your I/O Modules

Preparing Your Wiring

Layout

Careful wire routing within the enclosure helps to cut down electrical noise between I/O lines. Follow these rules for routing your wires.

• Route incoming power to the controller by a separate path from wiring to I/O devices. Where paths must cross, their intersection should be perpendicular.

IMPORTANT

Do not run signal or communication wiring and power wiring in the same conduit.

• If wiring ducts are used, allow for at least 50.8 mm (2 in.) between I/O wiring ducts and the controller. If the terminal strips are used for I/O wiring, allow for at least two inches between the terminal strips and the controller.

• Limit the cable length for the TTL input module to 15.24 m

(50 ft) per point and 3.05 m (10 ft) per point for the TTL output module. Use low power dc I/O wiring even though it is less tolerant to electrical noise.

ATTENTION

Handle the TTL module by its ends, not metallic surfaces. Electrostatic discharges can damage the module. Do not expose the TTL module to electrostatic charges.

• Segregate I/O wiring by signal type. Bundle wiring with similar electrical characteristics together.

Wires with different signal characteristics should be routed into the enclosure by separate paths. Refer to Allen-Bradley Programmable

Controller Grounding and Wiring Guidelines, publication 1770-4.1.

ATTENTION

If the controller is being installed within a potentially hazardous environment (that is, Class I, Division 2), all wiring must comply with the requirements stated in the National Electrical Code

501-4 (b).

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Recommendations for

Wiring I/O Devices

Wiring Your I/O Modules 117

The following are general recommendations for wiring I/O devices.

ATTENTION

Before you install and wire I/O devices, disconnect power from the controller and any other source to the I/O devices.

• Use acceptable wire gauge. The I/O wiring terminals are designed to accept two wires per terminal (maximum) of the following size wire:

– Europe: 2 mm

cross section or smaller

– United States: 14 AWG or smaller stranded wires

• See diagram on page 118 for maximum torque values for wiring

terminal screws and terminal block screws.

• Label wiring to I/O devices, power sources, and ground. Use tape, shrink-tubing, or other dependable means for labeling purposes. In addition to labeling, use colored insulation to identify wiring based on signal characteristics. For example, you may use blue for dc I/O wiring and red for ac I/O wiring.

• Route the wires down and away from the module, securing them with the cable tie.

• Bundle wiring for each similar I/O device together. If you use ducts, allow at least 5 cm (2 in.) between the ducts and the controller so there is sufficient room to wire the devices.

• Terminal cover plates have a write-on area for each terminal.

Use this area to identify your I/O devices. Label the removable terminal block if you have not already.

ATTENTION

Calculate the maximum possible current in each power and common wire. Observe all local electrical codes dictating the maximum current allowable for each wire size. Current above the maximum ratings may cause wiring to overheat, which can cause damage.

Capacitors on input modules have a stored charge that can cause a non-lethal shock. Avoid mounting the controller in a position where installation or service personnel would be in danger from startle reaction.

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118 Wiring Your I/O Modules

Features of an I/O Module

Below is an example of a combination I/O module.

Color Band

Input and Output Terminals

Connected to Terminal Block

OUTPUT INPUT

I/O Status

Indicators

Terminal Block Screw

(maximum torque: 0.6 Nm (5.3 lb-in))

Hinged Wiring Terminal

Door with Label

Terminal Block (may be color-coded and removable on some modules)

Terminal Wiring

• 2 wires per terminal maximum

• #14 AWG (2mm 2

) maximum

• Maximum torque: 0.9 Nm (8 lb-in)

Terminal Block Screw

(maximum torque: 0.6 Nm (5.3 lb-in))

Wires Leading to Input and Output Devices

Tie Wire

Wiring Your I/O Module

Terminals on the modules have self-lifting pressure plates that accept two 2 mm

(14 AWG) wires. Series B 12-point and 16-point and analog modules are equipped with removable terminal blocks for ease of wiring. The plug for the removable terminals is also color coded:

• red (ac)

• blue (dc)

• orange (relay)

• green (specialty).

Status indicators on the front of each module display the status of each I/O point. The status indicators illuminate when the proper signal to an input terminal is applied or when the processor commands an output to be energized.

To locate the I/O module wiring diagrams, contact your Rockwell

Automation sales office for the latest selection guide, publication

1747-SG001. Or, locate the installation instruction sheet that was sent with your I/O module. It also includes I/O wiring diagrams.

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Wiring Your I/O Modules 119

1. Install a tie wire to secure your wiring and keep it neat. (If you feed the tie into one hole, it is routed back out through the other.)

2. Cover any unused slots with card slot fillers (catalog number

1746-N2) to keep the chassis free from debris and dust.

Octal Label Kit Installation

The octal label kit consists of an octal filter label and a door label. Use these octal labels to replace the decimal labels that are attached to the

I/O modules. The kits can be obtained through your Allen-Bradley distributor. (The octal label kit is applicable when using 1746 I/O with

PLC-5 processors via a 1747-ASB Remote I/O Adapter.)

Apply the Octal Filter Label

1. Remove the octal filter label from its paper carrier.

2. Align the octal filter label numbers horizontally to the module color bar and over the decimal filter numbers, as shown in the illustration below.

3. Apply the octal label to the filter.

4. Press firmly to ensure proper adhesion of the label.

Apply the Octal Door Label

1. Remove the octal door label from its paper carrier.

2. Align it over the decimal door label on the inside of the door.

3. Press firmly to ensure proper adhesion of the label.

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120 Wiring Your I/O Modules

Module Color Bar Decimal Filter Label Octal Filter Label

Octal Door Label

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Decimal Door Label

Octal Kit and I/O Module Information

I/O Module

Cat. No.

1746-IA16

1746-IB16

1746-IG16

1746-IM16

1746-IN16

1746-IV16

1746-ITB16

1746-ITV16

1746-OA16

1746-OB16

1746-OG16

Octal Kit

Cat. No.

1746-RL40

1746-RL41

1746-RL42

1746-RL43

1746-RL44

1746-RL45

1746-RL46

1746-RL47

1746-RL50

1746-RL51

1746-RL52

I/O Module

Cat. No.

1746-OV16

1746-OW16

1746-OBP16

1746-OVP16

1746-OAP12

1746-IC16

1746-IH16

1746-IB32

1746-IV32

1746-OB32

1746-OB32E

1746-OV32

1746-OB16E

Octal Kit

Cat. No.

1746-RL53

1746-RL54

1746-RL55

1746-RL56

1746-RL57

1746-RL58

1746-RL59

1746-RL60

1746-RL61

1746-RL70

1746-RL71

1746-RL72

Using the Removable

Terminal Block (RTB)

Wiring Your I/O Modules 121

The Removable Terminal Block (RTB) is provided on all 12-point and

16-point discrete I/O modules and analog modules. They allow for faster and more convenient wiring of the I/O modules. The modules and the RTB are color-coded.

Color

Red

Blue

Orange

Green

Type of I/O Removable Terminal Block ac inputs/outputs dc inputs/outputs relay outputs specialty modules

Replacement terminal blocks are available if they are lost or damaged.

See the replacement part list in chapter 11.

Remove the RTB

Below are guidelines for removing the I/O Removable Terminal

Block.

ATTENTION

Never install or remove I/O modules or terminal blocks while the SLC chassis is powered.

Terminal Block

Release Screw

Dot indicates Terminal Number 0

(or top of I/O wiring).

1. If the I/O module is already installed in the chassis, remove power to the SLC chassis.

2. Unscrew the upper right and lower left terminal block release screws.

3. Grasp the RTB with your thumb and forefinger and pull straight out.

4. Label the RTB with appropriate slot, chassis, and module identification.

Terminal Block

Release Screw

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122 Wiring Your I/O Modules

Install the RTB

Below are guidelines for installing the RTB.

1. Be sure the color of the RTB matches the color band on the module.

ATTENTION

Inserting a wired RTB on an incorrect module can damage the module circuitry when power is applied.

2. Write the appropriate slot, chassis, and module type on the RTB label.

ATTENTION

Disconnect power before attempting to install or remove

I/O modules or their terminal blocks.

3. Disconnect power.

4. Align the terminal block release screws with the mating connector in the module.

5. Press the RTB firmly onto the connector contacts.

6. Tighten the terminal block release screws. To avoid cracking the terminal block, alternate the tightening of the screws.

Terminal Block Release Screws

Maximum Torque:

0.9 Nm (8 lb-in)

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Chapter

Starting Up Your Control System

This chapter describes how to start up your control system. To accomplish this, you must go through eight procedures.

Procedures for Starting the

Control System

Start-up involves the following procedures to be carried out in this sequence.

1. Inspect your installation.

2. Disconnect motion-causing devices.

3. Initialize and test your processor.

4. Test your inputs.

5. Test your outputs.

6. Enter and test your program.

7. Observe control motion.

8. Conduct a dry run of your application.

These procedures isolate problems such as wiring mistakes, equipment malfunction, and programming errors in a systematic, controlled manner.

Go through these procedures very carefully to avoid possible personal injury and equipment damage.

IMPORTANT

Do not attempt system start-up until you are thoroughly familiar with the controller components and programming/editing techniques. You must also be thoroughly familiar with the particular application.

For general recommendation concerning installation safety requirements and safety requirements and safety related work practices, refer to the requirements specific to your region.

• Europe: Reference the standards found in EN 60204 and your national regulations.

123 Publication 1747-UM011F-EN-P - May 2007

124 Starting Up Your Control System

• United States: refer to NFPA 70E, Electrical Safety Requirements for

Employee Workplaces.

1. Inspect Your Installation

You can often prevent serious problems in later test procedures by first making a thorough physical inspection. We recommend that you perform the following procedure.

1. Make sure that the controller and all other devices in the system are securely mounted.

2. Check all wiring including:

• connections from the main disconnect to the controller input.

• the master control relay/emergency-stop circuit.

• input device circuits.

• output device circuits.

Make certain that all wiring connections are correct and that there are no missing wires. Check the tightness of all terminals to make certain wires are secure.

3. Measure the incoming line voltage. Be certain that it corresponds to controller requirements and that it falls within the specified voltage range. See specifications for input voltage

ranges on page 178.

2. Disconnect

Motion-Causing Device

In the following test procedures, the controller is energized. As a safety precaution, you must make certain that machine motion does not occur. The preferred way is to disconnect the motor wires at the motor starter or the motor itself. In this way, you can test the operation of the starter coil, verifying that your output circuit is wired correctly and functioning. Similarly, the preferred way to disconnect a solenoid is to disengage the valve, leaving the coil connected.

In some instances, you may not be able to disconnect a device the preferred way. In this case, it is necessary to open the output circuit at some convenient point.

For circuit testing purposes, it is best to open the circuit at a point as close as possible to the motion-causing device. For example, your output might be a relay coil that in turn energizes a motor starter; if it is impractical to disconnect the motor wires, the next best thing to do

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Starting Up Your Control System 125 is to open the circuit at a point between the motor starter and the relay contact.

ATTENTION

Machine motion during system checkout can be hazardous to personnel. During the checkout procedures 3, 4, 5, and 6, you must disconnect all devices that, when energized, might cause machine motion.

3. Initialize and Test Your

Processor

When you are certain that machine motion cannot occur with the controller energized, you may begin by initializing the processor using the following steps.

1. Energize the chassis power supply. If power is supplied to the controller and the installation is correct, the initial factory conditions for all processors are provided in the following table.

Processor Name

Mode

DEFAULT

Program mode or (S:1/0 to S:1/4 = 0 0001) or

Watchdog values

I/O slot enables

Node address

(except SLC 5/04 and 5/05)

Communication rate

(except SLC 5/04 and 5/05)

SLC 5/03, SLC 5/04, and

SLC 5/05 processor only

SLC 5/04 processor only

SLC 5/05 processor only

Fault mode

100 ms

ALL ENABLED

19.2 Kbaud

Channel 0 configuration

Channel 1 configuration

(S:1/0 to S:1/4 = 0.0001 and S:1/13 = 1)

S:3H = 0000 1010

S:11/1 through S:12/14 set to 1

Channel 1 = DH485

S:15L = 0000 0001

Channel 1 = DH485

S:15H = 0000 0100

DF1 Full-duplex

No Handshaking

19.2 KBaud

CRC Error Check

Duplicate Detect On

No Parity

DH+

57.6 KBaud

Default Node Address = 1

Ethernet

(1)

10 Mbps

(1)

Configuring with BOOTP enabled so that a BOOTP server on the network can automatically provide the SLC 5/05

processor with the configuration necessary to start communicating over Ethernet. See appendix G for more

information.

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126 Starting Up Your Control System

ATTENTION

These steps are covered more extensively in your programming software and Hand-held Terminal user manuals. Reference these manuals if you have a problem completing one of the steps.

2. Turn on the programming device.

3. Configure the controller.

4. Name the program. (Becomes the processor name when downloaded.)

5. Program a sample test rung not affecting machine operation.

6. Save the program and controller configuration.

7. Transfer the controller configuration and sample test program to the processor. After the new program is transferred to the processor, the CPU FAULT status indicator should clear. The CPU

FAULT (or FLT on the SLC 5/03, SLC 5/04, and SLC 5/05 processor) status indicator stops if it was flashing.

8. Enter the Run mode.

The processor RUN status indicator should turn on, indicating that the controller is in the Run mode with no CPU faults. If any

other CPU status exists, refer to chapter 10 for recommended

action.

9. Monitor and exercise simple test rung.

If a simple test rung operates successfully without CPU faults, you may assume basic processor functions are properly functioning. If

any other processor status exists, refer to chapter 10 for

recommended action.

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4. Test Your Inputs

Starting Up Your Control System 127

After successful processor initialization and test, follow this procedure to test your inputs.

1. Assuming you are still online with the programming device, put the controller into the Continuous Scan Test mode. This lets the processor scan the I/O and program, but not turn on any physical outputs.

2. Monitor the data in data File 1, the input data file. All configured

Inputs should be displayed.

3. Make sure the first input slot, whatever slot number that may be, is shown on the monitor.

4. Select the first input device connected to the first input terminal on the input module in the I/O chassis.

5. Manually close and open the addressed input device.

ATTENTION

Never reach into a machine to actuate a device, unexpected machine operation could occur.

6. Observe the associated bit status using the programming device monitor function. Also, observe input status indicator.

a. When the input device is closed and the signal power is at the input terminal, the associated status bit is set to a one, and the input status indicator should turn on.

b. When the input device is opened and signal power does not exist at the input terminal, the associated status bit is set to a

0, and the input status indicator should go off.

7. If associated bit status and input status indicator match input device status, select the next input device and repeat steps 5 and

6 until all inputs in the SLC 500 chassis have been tested.

If associated bit status and input status indicator does not match the input device status, follow the recommended troubleshooting steps in

the Input Troubleshooting Steps section.

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128 Starting Up Your Control System

5. Test Your Outputs

Input Troubleshooting Steps

1. Make sure the processor is in the Continuous Scan Test mode.

2. If associated bit status and status indicator status do not match the input device status, check status file S:11 and S:12 I/O slot enables. Bits S:11/0 through S:11/15 and S:12/0 through S:12/14 should all be 1, enabling all I/O slots for the modular system.

3. Verify proper control power to the input device.

4. Remove the input device power and make sure circuit terminations are properly wired and tightened.

5. Re-energize the input device power, and check for proper control voltage between the input terminal and signal common terminal.

6. If proper input control voltage does not exist, first check minimum signal common by verifying voltage between input device power source and the input common terminal.

7. If proper input voltage does exist, first check the minimum input current specification on the input module, and then measure the current in the input circuit. Replace the input module if necessary.

8. If the input modules are OK, and proper voltage is measured between input device source and input module common terminal, test the input device and replace if necessary.

For more information on input troubleshooting see page 166.

After you test all inputs, and have determined that they are functioning properly, test the outputs.

1. Refer to page 124 to insure no motion will occur when any

controller output is energized.

2. Place the controller in the Program mode.

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Starting Up Your Control System 129

3. Create an output test rung as shown below for each output module configured.

MOV

SOURCE B3:"XX"

DEST O0:"XX"."Y"

Let XX represent slot number of the output currently selected. Y represents output word identifier. This rung moves a word of data from the bit file to the output file.

4. Save the output test program and current controller configuration.

5. Transfer the output test program to the processor.

6. Put the controller in the Run mode.

7. Monitor the data in data file B3 on the programming device display.

8. Enter B3: XX at address prompt to select the output to be tested.

XX represents the output slot number.

9. Enter 1 at data prompt for the address that corresponds to the bit in the output word.

10. Observe the output status indicator and the output device.

The output status indicator should turn on. The output device should be energized (unless you disconnected it to prevent machine motion).

11. Reset the data value back to zero for the selected address and both the output status indicator and output device should de-energize.

12. If the status indicator and the output device correspond to data settings in steps 10 and 11, repeat steps 8 through 11 for each output.

If the status indicators and output device states do not correspond to the data settings in steps 9 and 11, follow the

section.

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130 Starting Up Your Control System

Output Troubleshooting Steps

1. Make sure the processor is in the Run mode.

2. Verify proper addressing of the output test rung from the previous page.

3. Using a programming device, locate the output data file and bit data file. See if the status of the associated bits between these files match.

4. If the status of the bits match in step 3, and if the status of the output status indicator match the status of the bits, but the status of the output device is different, continue to step 5.

If the output status indicator does not match associated bit status, check status file S:11 and S:12 I/O slot enables. Bits

S:11/0 through S:11/15 and S:12/0 through S:12/14 should all be

1 enabling all I/O slots for the modular system.

If the output slot enable was verified, try exchanging the output module under test with identical hardware and retest. If the new hardware works properly, replace the original.

5. Verify proper output voltage at the output terminal and then at the output device.

6. De-energize the output circuit and check all output circuit terminations and wire routes.

7. If proper output voltage does not exist at the output device and the power source is adequate to drive the output device, test the output device and replace it if necessary.

For more information on output troubleshooting, see page 167.

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6. Enter and Test Your

Program

Starting Up Your Control System 131

After you test all inputs and outputs and they are functioning properly, follow the steps below to safely and successfully enter and test your specific application program.

1. Verify the offline program.

After the program has been entered in the offline edit file mode, program verification may begin.

Remaining in the offline edit file mode, use the cursor keys and/or search function of your programming device to inspect every instruction and rung for errors.

2. Check your written program, rung for rung, against the program entered into the offline memory. The most common errors found in program entry are:

• incorrect addressing of instructions.

• omission of an instruction.

• more than one output instruction programmed using the same address.

3. Transfer the program into the processor.

a. Place your programming device online.

b. Place the processor into Program mode.

c. Select the download function when using the Hand-Held

Terminal or the restore function when using your programming software.

4. Verify the online program transfer.

a. Select monitor file function.

b. Cursor through the program to verify that you selected the right program.

5. Conduct a single-scan program test.

a. Select the monitor file function and place the cursor on the first rung.

b. Select the Test mode.

c. Select Single-Scan (SSN) test. In this test mode, the processor executes a single operating cycle, which includes reading the inputs, executing the ladder program, and updating all data without energizing the output circuits. However, the monitor file function will identify output status as if outputs were enabled.

Timers are also incremented a minimum of 10 milliseconds each single scan.

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132 Starting Up Your Control System d. Simulate the input conditions necessary to execute the current monitored rung of the program. If it is not practical to manually activate the input device, use the force function to simulate the proper condition.

ATTENTION

Never reach into a machine to actuate a device.

Unexpected machine operation could occur.

e. Activate a single operating scan as outlined in the programming device user manual.

f. Verify the intended effects on the output instructions for that rung and overall program logic effects.

g. Select the next program rung and repeat test procedures as listed above until the entire program has been tested.

6. Conduct a continuous scan program test.

Once the individual single scan rung tests have been completed and proper program operation verified, a continuous scan test is appropriate before motion checkout.

The mode simulates the controller Run mode without energizing the external outputs.

Use the following steps to further verify proper program and system function operation.

a. Remain or return to an online condition with the processor.

b. Monitor the file.

c. Select Test mode.

d. Select the Continuous Scan test.

e. Simulate the input conditions necessary to execute system functions.

f. Verify the intended operation of each system function and the effects of other system functions.

ATTENTION

Never reach into a machine to actuate a device.

Unexpected machine operation could occur.

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Starting Up Your Control System 133

7. Observe Control Motion

Now that program execution has been verified, checkout of control motion can begin. All persons involved with the programming, installation, layout design, machine or process design and maintenance should be involved in making decisions for determining the best and safest way to test the total system.

The following procedures are general in nature. Individual conditions may warrant their modification. The basic approach is to initiate testing with the least amount of machine motion. Only some outputs are allowed to generate machine motion. Then additional machine motion can be gradually added, thereby allowing any problems to be detected more easily under controlled conditions. The following procedure provides the steps for testing machine motion using one output at a time.

ATTENTION

During all phases of checkout, station a person ready to operate an emergency-stop switch if necessary. The emergency-stop switch will de-energize the master control relay and remove power from the machine. This circuit must be hardwired only, it

must not be programmed.

Use this procedure to observe control motion.

1. Identify the first output device to be tested and reconnect its wiring.

ATTENTION

Contact with ac line potential may cause injury to personnel. When reconnecting wiring, make sure that the ac power disconnect switch is opened.

2. Place the controller in the Run mode and observe the behavior of the output device. To do this, simulate the input conditions necessary to energize the output in the program. If it is not practical to manually activate an input device, use the force function to simulate the proper input condition.

ATTENTION

Never reach into a machine to actuate a device, unexpected machine operation could occur.

3. Repeat steps 1 and 2, testing each output device, one at a time.

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134 Starting Up Your Control System

8. Conduct a Dry Run

ATTENTION

After thoroughly checking out the controller system and program, proceed with a dry run of the application with all of the output devices enabled. This dry run will vary with the application. A machine tool dry run would test the program with all outputs enabled but without tooling an actual part.

After you check out the entire system, and your dry run has been completed satisfactorily, we recommend that you load your program into an EEPROM memory module for back-up program storage. Refer to your programming software’s online help for directions on loading the EEPROM from RAM.

This step completes start-up procedures. Your SLC programmable controller is now ready for operation.

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Chapter

Maintaining Your Control System

This chapter covers the following maintenance issues:

• Handling and storing battery, catalog number 1747-BA

• Installing and replacing the battery of the SLC 5/01 or SLC 5/02 processor

• Replacing your SLC 5/03, SLC 5/04, and SLC 5/05 battery

• Replacing retainer clips on an I/O module

• Replacing a fuse on the power supply

See page 75 for important information on testing the Master Control

Relay Circuit and Preventive Maintenance.

Handling and Storing

Battery, Catalog Number

1747-BA

Follow the procedure below to ensure proper battery operation and reduce personnel hazards.

Handling

• Use only for the intended operation.

• Do not ship or dispose of cells except according to recommended procedures.

• Do not ship on passenger aircraft.

ATTENTION

Do not charge the batteries. An explosion could result or the cells could overheat causing burns.

Do not open, puncture, crush, or otherwise mutilate the batteries. A possibility of an explosion exists and/or toxic, corrosive, and flammable liquids would be exposed.

Do not incinerate or expose the batteries to high temperatures.

Do not attempt to solder batteries. An explosion could result.

Do not short positive and negative terminals together.

Excessive heat can build up and cause severe burns.

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136 Maintaining Your Control System

Storing

Store the lithium batteries in a cool, dry environment, typically

20...25 °C (68...77 °F) and 40...60% relative humidity. Store the batteries and a copy of the battery instruction sheet in the original container, away from flammable materials.

Transporting

One or two batteries - Each battery contains 0.23 grams of lithium. Up to two batteries can be shipped together within the United States without restriction. Regulations governing shipment to or within other countries may differ.

Three or more batteries - Procedures for the transportation of three or more batteries shipped together within the United States are specified by the Department of Transportation (DOT) in the Code of Federal

Regulations, CFR49, “Transportation.” An exemption to these regulations, DOT - E7052, covers the transport of certain hazardous materials classified as flammable solids. This exemption authorizes transport of lithium batteries by motor vehicle, rail freight, cargo vessel, and cargo-only aircraft, providing certain conditions are met.

Transport by passenger aircraft is not permitted.

A special provision of DOT-E7052 (11th Rev., October 21, 1982, par.

8-a) provides that:

“Persons that receive cell and batteries covered by this exemption may reship them pursuant to the provisions of 49

CFR 173.22a in any of these packages authorized in this exemption including those in which they were received.”

The Code of Federal Regulations, 49 CFR 173.22a, relates to the use of packaging authorized under exemptions. In part, it requires that you must maintain a copy of the exemption at each facility where the packaging is being used in connection with shipment under the exemption.

Shipment of depleted batteries for disposal may be subject to specific regulation of the countries involved or to regulations endorsed by those countries, such as the IATA Restricted Articles Regulations of the

International Air Transport Association, Geneva, Switzerland.

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Maintaining Your Control System 137

IMPORTANT

Regulations for transportation of lithium batteries are periodically revised.

Refer to http://www.dot.gov for the latest shipping information.

Disposal

ATTENTION

Do not incinerate or dispose of lithium batteries in general trash collection. Explosion or violent rupture is possible. Batteries should be collected for disposal in a manner to prevent against short circuiting, compacting, or destruction of case integrity and hermetic seal.

For disposal, batteries must be packaged and shipped in accordance with transportation regulations, to a proper disposal site. The U.S.

Department of Transportation authorizes shipment of “Lithium batteries for disposal” by motor vehicle only in regulation 173.1015 of

CFR 49 (effective January 5, 1983). For additional information contact:

U.S. Department of Transportation

Research and Special Programs Administration

400 Seventh Street, S.W.

Washington, D.C. 20590

Although the Environmental Protection Agency at this time has no regulations specific to lithium batteries, the material contained may be considered toxic, reactive, or corrosive. The person disposing of the material is responsible for any hazard created in doing so. State and local regulations may exist regarding the disposal of these materials.

For a lithium battery product safety data sheet, contact the manufacturer.

Sanyo Energy Corporation

600 Supreme Drive

Bensenville, Il 60106

USA or Tadarand U.S. Battery Division

2 Seaview Blvd.

Port Washington, NY 11050

USA

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138 Maintaining Your Control System

Install and Replace the

Battery of the SLC 5/01 or

SLC 5/02 Processor

Back-up power for RAM is provided by a replaceable battery. The lithium battery provides back-up for approximately five years for the

1747-L511 processor and two years for the 1747-L514 and 1747-L524 processor. A red BATTERY LOW status indicator alerts you when the battery voltage has fallen below a threshold level.

Once the BATTERY LOW status indicator goes on, do not remove processor power or your program may be lost. Replace the battery as soon as possible. You can replace the battery while the processor is powered.

Follow this procedure to install or replace the battery.

1. Open the door of the processor.

2. If you are installing a battery in a new processor (battery never installed before), remove the jumper from the battery connector socket. Store the jumper in safe place for possible future use without the battery.

If you are replacing an old battery, unplug the existing battery connector and remove from the retainer clips. The figure below shows where to install the battery in a SLC 5/01 or SLC 5/02 processor.

3. Insert a new or replacement battery in the holder making sure it is held in by the retainer clips.

4. Plug the battery connector into the socket.

White

Lead

Red Lead

Retainer

Clips

Battery

Connector

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5. Close the processor door.

Maintaining Your Control System 139

Replace Your SLC 5/03, SLC

5/04, or SLC 5/05 Battery

Your SLC 5/03, SLC 5/04, or SLC 5/05 processor provides back-up power for RAM through a replaceable lithium battery. This battery provides back-up for approximately 2 years. A BATT status indicator on the front of the processor alerts you when the battery voltage has fallen below a threshold level.

To replace the lithium battery, follow these steps.

ATTENTION

Do not remove the processor from the SLC 500 chassis until all power is removed from the SLC 500 power supply.

1. Remove power from the SLC 500 power supply.

2. Remove the processor from the chassis by pressing the retainer clips at both the top and bottom of the module and slide it out.

ATTENTION

Do not expose the processor to surfaces or other areas that may typically hold an electrostatic charge.

Electrostatic charges can alter or destroy memory.

3. Unplug the battery connector. The figure below shows the battery connector location.

Battery

Red White

Battery

Connector

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140 Maintaining Your Control System

IMPORTANT

The SLC 5/03, SLC 5/04, and SLC 5/05 processors have a capacitor that provides at least 30 minutes of battery back-up while the battery is disconnected. Data in RAM is not lost if the battery is replaced within 30 minutes.

4. Remove the battery from the retaining clips.

5. Insert a new battery into the battery retaining clips.

6. Plug the battery connector into the socket as shown in the figure on page 139.

7. Insert the module back into the SLC 500 chassis.

8. Restore power to the SLC 500 power supply.

Replacing Retainer Clips on an I/O Module

If it becomes necessary to replace the retainer clip (also called self-locking tab), order catalog number 1746-R15 (4 per package).

Retainer Clip

Holding Tabs

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Maintaining Your Control System 141

Remove Damaged Retainer Clips

If necessary, pry off the broken retainer clip from the bottom with a screwdriver. Do not twist it off. You can damage the module.

Retainer Clip

Replace a Fuse on the

Power Supply

Install New Retainer Clips

Insert one of the pins of the retainer clip into the hole in the I/O module and then snap the other end in place.

Follow this procedure to replace a fuse on the power supply (only for the 1746-P1, 1746-P2, and 1746-P3 power supply).

1. Remove power from the SLC 500 power supply.

2. Open the door on the power supply and use a fuse puller to remove the fuse.

ATTENTION

Use only replacement fuses of the type and rating specified for the unit. Improper fuse selection can result in equipment damage.

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142 Maintaining Your Control System

3. Install a replacement fuse. See the figure below for fuse placement.

POWER

Fuse

3-Pin Jumper

ATTENTION

The exposed pins on the 3-pin jumper is electrically live.

Contact with the pin may cause injury to personnel.

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Chapter

Troubleshooting

In this chapter, you will learn about:

• contacting Rockwell Automation for assistance.

• tips for troubleshooting your control system.

• troubleshooting the SLC 5/01 and SLC 5/02 processors.

• troubleshooting the SLC 5/03, SLC 5/04, and SLC 5/05 processors.

• troubleshooting your input modules.

• troubleshooting your output modules.

Contacting Rockwell

Automation for Assistance

If you need to contact Rockwell Automation or local distributor for assistance, it is helpful to obtain the following (prior to calling):

• Processor type, series letter, operating system (OS) number

(obtained from the status file), firmware (FRN) number (see label on side of processor module)

• Processor status indicator status

• Processor error codes (found in S:6 of status file)

• Hardware types in system (I/O modules, chassis)

• Revision of programming software

• TechConnect serial number

• RSLogix software serial number

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144 Troubleshooting

Tips for Troubleshooting

Your Control System

When troubleshooting, pay careful attention to these general warnings.

ATTENTION

Have all personnel remain clear of the controller and equipment when power is applied. The problem may be intermittent and sudden unexpected machine motion could result in injury. Have someone ready to operate an emergency-stop switch in case it becomes necessary to shut off power to the controller equipment. Also, see NFPA 70E Part II for additional guidelines for safety-related work practices.

Never reach into a machine to actuate a switch since unexpected machine motion can occur and cause injury.

Remove all electrical power at the main power disconnect switches before checking electrical connections or inputs/outputs causing machine motion.

The first step in the troubleshooting procedure is to identify the problem and its source.

Locate the majority of faults by observing the diagnostic indicators on the front of the power supply, processor unit, and I/O modules. These indicators, along with error codes identified in the programming device user manual and software, help trace the source of the fault to the user’s input/output devices, wiring, or the controller. Faults which do not clear by either toggling the keyswitch from Program to Run or cycling power, cannot be diagnosed or corrected without programming software.

A flashing fault status indicator may indicate the user program in the processor is corrupted and a copy of the program will be needed before contacting your local Allen-Bradley sales office or distributor for assistance.

Removing Power

Before working on a SLC 500 modular system, always remove the power supply input power at the main power disconnect switch.

The power status indicator on the power supply indicates that dc power is being supplied to the chassis. The status indicator could be off when incoming power is present.

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Troubleshooting 145

Replacing Fuses

ATTENTION

When replacing a fuse, be sure to remove all power from the system. Replacing a blown fuse can rarely restore power supply operation, requiring the power supply to be replaced.

Troubleshooting the

SLC 5/01 and SLC 5/02

Processors

Program Alteration

There are several causes of alteration to the user program, including extreme environmental conditions, Electromagnetic Interference

(EMI), improper grounding, improper wiring connections, and unauthorized tampering. If you suspect the memory has been altered, check the program against a previously saved program on an

EEPROM, UVPROM or Flash EPROM module.

Follow these steps to receive the maximum benefit of this troubleshooting section.

1. Identify the status of your processor status indicators. See

chapter 5 for a description of status indicators and their states.

2. Using the tables on the following pages, match your processor and power supply status indicators with the status indicators in the first column.

3. Once the status indicators are matched to the appropriate table, move across the table identifying error description and probable causes.

4. Follow the recommended action steps for each probable cause until the error is corrected.

5. If recommended actions do not correct the error, contact your local Rockwell Automation sales office or distributor.

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146 Troubleshooting

Identifying SLC 5/01 and SLC 5/02 Processor Errors

The following status indicators and tables provide you with information regarding error messages, possible cause(s) for the error, and recommended action to resolve the error.

SLC 5/01 and SLC 5/02 Processor Errors

If the status indicators indicate

• All status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

The following error exists

Inadequate system power

Probable Cause

No line power.

Recommended Action

1. Verify proper line voltage and connections on the power terminals.

Power supply fuse blown.

2. Verify proper 120/240V power supply jumper selection. See

2. If fuse blows again, replace the power supply. See page 141

1. Check the incoming power fuse, check for proper incoming power connections. Replace fuse.

Power supply overload.

Defective power supply.

on fuse replacement.

1. Remove line power to power supply. Remove several output modules from the chassis. Wait five minutes. Reapply power.

2. If condition reoccurs, re-calculate module configuration power required and verify proper power supply selection.

See page 38. This problem can occur intermittently if power

supply is slightly overloaded when output loading and temperature varies.

1. Recheck other probable causes.

2. Monitor the line power to chassis power supply for possible transient or shorting.

3. Replace the power supply.

Verify proper 120/240V power supply jumper selection. See

procedures starting on page 165.

• CPU Fault status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

Inadequate system power

Improper line power voltage selection.

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Troubleshooting 147

SLC 5/01 and SLC 5/02 Processor Errors

If the status indicators indicate

• Power status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

The following error exists

Processor not in run mode

Probable Cause Recommended Action

Either improper mode selected or user program logic error.

Line power out of operating range.

1. Verify selected processor mode.

2. If in program or test mode, try to enter run mode.

3. If in suspend mode, check user program logic for suspend instructions.

1. Check proper 120/240V power supply jumper selection and incoming power connections.

Improper seating of power supply and/or processor in the chassis.

2. Monitor for proper line voltage at the incoming power connections.

1. Remove power and inspect the power supply and processor chassis connections.

2. Re-install the devices and re-apply power.

Defective processor, power supply, or chassis.

IMPORTANT

The processor only operates in slot 0 of the first chassis.

1. Attempt to put processor in run mode in existing chassis.

2. Place the processor in another chassis. Apply power, reconfigure, and attempt to put processor in run mode. If unsuccessful, replace the processor.

• Power status indicator is on

• Run status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

3. Place the power supply in another chassis and test. If unsuccessful, replace the power supply. If successful, replace the original chassis.

1. Monitor logic in Run mode and verify desired I/O status.

System inoperable, no major CPU faults detected

User program logic error.

Defective I/O devices or I/O wiring.

2. Check for minor CPU faults.

Test inputs and outputs according to I/O troubleshooting

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148 Troubleshooting

SLC 5/01 and SLC 5/02 Processor Errors

If the status indicators indicate

• Power status indicator on

• CPU Fault status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

The following error exists

CPU fault

• Power status indicator is on

• CPU Fault status indicator is flashing

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

CPU major fault

Probable Cause Recommended Action

CPU memory error.

Cycle power.

Faulty memory module.

1. Remove power and then remove the memory module from the processor.

2. Re-install the processor and re-apply power to the power supply. If steady CPU Fault status indicator changes to flashing, replace the existing memory module with a replacement module.

Faulty processor or power supply.

See chapter 6 for removing and installing memory modules.

1. Place the processor in another chassis not in the existing system and cycle power. If steady CPU Fault status indicator reappears, replace the processor.

Processor firmware installed incorrectly.

Initial CPU factory power-up condition.

2. If CPU Fault status indicator clears, monitor the line power going to the power supply in existing system. Replace existing system power supply if line power checks OK.

If upgrading the processor to a different firmware level, verify that the firmware chip orientation matches the upgrade kit directions.

1. See chapter 8 and follow the start-up procedures.

2. Clear processor memory to get rid of the flashing CPU Fault status indicator.

1. Monitor Status File word S:6 for major error code.

Hardware/software major fault detected. 2. Refer to the SLC 500 Instruction Set Reference Manual, publication 1747-RM001, for error codes and additional troubleshooting information.

(erratic, repetitive power cycling can cause a processor major hardware fault)

3. Remove hardware/software condition causing fault.

4. Clear Status File S:1/13 major error bits, if set.

5. Clear Status File S:5 major error bits, if set.

6. Clear Status File S:6 major error code (optional).

7. Attempt to put processor in run mode.

If unsuccessful, repeat recommended action steps above.

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Troubleshooting 149

SLC 5/01 and SLC 5/02 Processor Errors

If the status indicators indicate

• Power status indicator is on

• Run status indicator is on

• Forced I/O status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

• Power status indicator is on

• Run status indicator is on

• Forced I/O status indicator is flashing

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

• Power status indicator is on

• CPU Fault status indicator is flashing

• Battery Low status indicator is on

• All other status indicators are off

• Status of SLC 5/02

Comm status indicator does not matter

The following error exists

System does not operate per ladder logic

System does not operate per programmed forces

CPU major error with low or no battery back-up

Probable Cause Recommended Action

User forced I/O is disabling operation.

User programmed forces are not enabled.

Loss of RAM during power-down.

1. Monitor program file on-line and identify forced I/O.

2. Disable appropriate forces and test system conditions again.

1. Monitor program file on-line and identify programmed forces.

2. Enable appropriate forces and test system conditions again.

Once forces are enabled, the Forced I/O status indicator turns On (steady).

1. Verify battery is connected. See page 138.

2. Replace the battery if you want RAM battery backup. See

page 138. If you want to back up RAM with the capacitor in a

SLC 5/01 (1747-L511), add or replace the Battery Low status indicator jumper.

3. Refer to processor major fault recommended action steps.

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150 Troubleshooting

Identifying SLC 5/02 Processor Communication Errors

SLC 5/02 Processor Communication Errors

If the status indicators indicate

• Power status indicator is on

• Comm status indicator is off

• CPU Fault status indicator is off or flashing

• Status of Run, Forced

I/O, and Battery Low status indicators does not matter

The following error exists

The SLC 5/02 processor is not receiving data and is not communicating with the programmer

Probable Cause Recommended Action

DH-485 communication parameters are improperly set up.

1. Check communication parameters of programmer.

Programmer and processor communication rate must match.

Programmer and processor node addresses must be different.

2. Try different combinations of: a. communication rate (default is 19.2 K) b. node address (default is 1)

3. Try to increase the maximum node address.

(default is 31)

1. Check cable continuity.

Bad connection of communication device.

2. Check cable connections between programmer and processor.

Low or no power to communication device.

3. Check communication device (for example, the 1747-PIC interface). Replace if necessary.

1. Verify proper power supply selection and backplane loading.

(The 1747-PIC and 1747-AIC interface draw power off the backplane.)

• Power status indicator is on

• Comm status indicator is on

• CPU Fault status indicator is off or flashing

• Status of Run, Forced

I/O, and Battery Low status indicators does not matter

The SLC 5/02 processor is receiving data, but is not communicating with the programmer

DH-485 communication parameters are set up improperly.

• Power status indicator is on

• CPU Fault status indicator is on

• Status of all other status indicators does not matter

A fatal error has occurred

Excessive noise or a faulty SLC 5/02 processor.

2. Verify proper 120/240V power supply jumper selection. See

chapter 5 for description of status indicators and their different

1. Check communication parameters of programmer.

Programmer and processor communication rate must match.

Programmer and processor node addresses must be different.

2. Try different combinations of: a. communication rate (default is 19.2 K) b. node address (default is 1)

3. Try to increase the maximum node address.

(default is 31)

1. Cycle power to obtain flashing CPU Fault status indicator and default program.

2. Examine the error code following the power cycle. Take appropriate action.

3. Reload the program.

4. Contact your local Rockwell Automation representative if the error persists.

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Troubleshooting 151

Troubleshooting the

SLC 5/03, SLC 5/04, and

SLC 5/05 Processors

Between the time you apply power to an SLC 5/03, SLC 5/04, or

SLC 5/05 processor and the communication are established via a connected programming device, the only form of communication between you and the processor is through the status indicator display.

When power is applied, all of the status indicators flash on and then off while the processor conducts hardware tests. This is part of the normal powerup sequence. Following the selftest by the processor, all the status indicators again flash on momentarily. If a user program is in a running state, the RUN status indicator will be on. If a fault exists within the processor, the FLT status indicator is on.

Follow these steps to receive the maximum benefit of this troubleshooting section.

1. Identify the status of your processor status indicators. See

states.

2. Using the tables on the following pages, match your processor and power supply status indicators with the status indicators in the first column.

3. Once the status indicators are matched to the appropriate table, move across the table identifying error description and probable causes.

4. Then follow the recommended action steps for each probable cause until the cause is identified.

5. If recommended actions do not identify the trouble cause, contact your local Rockwell Automation sales office or distributor.

Clearing SLC 5/03, SLC 5/04, and SLC 5/05 Processor Faults Using the Keyswitch

Toggle the keyswitch from RUN to PROG and then back to RUN; this will clear some faults. If the keyswitch is left in the RUN position, the processor mode cannot be changed from a programmer/operator interface device. If you return the keyswitch to the REM position, you

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152 Troubleshooting can then use a programmer/operator interface device to change the processor mode.

ATTENTION

If you clear a processor fault using the keyswitch, the processor immediately enters the Run mode.

Identifying SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

The following status indicators and tables provide you with information regarding error messages, possible cause(s) for the error, and recommended action to resolve the error.

SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

If the status indicators indicate

• All status indicators are off

• Status of any

Communication status indicator does not matter

The following error exists

Inadequate system power

Probable Cause

No line power.

Recommended Action

1. Verify proper line voltage and connections on the power terminals.

Power supply fuse blown.

2. Verify proper 120/240V power supply jumper selection. See

See page 141 on fuse replacement.

1. Check the incoming power fuse, check for proper incoming power connections. Replace fuse.

Power supply overload.

Defective power supply.

2. If fuse blows again, replace the power supply.

1. Remove line power to power supply. remove several output modules from the chassis. wait five minutes. reapply power.

2. If condition reoccurs, re-calculate module configuration power required and verify proper power supply selection.

See page 38. This problem can occur intermittently if power

supply is slightly overloaded when output loading and temperature varies.

1. Recheck other probable causes.

2. Monitor the line power to chassis power supply for possible transient or shorting.

3. Replace the power supply.

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Troubleshooting 153

SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

If the status indicators indicate

• FLT status indicator is on

• All other status indicators are off

• Status of any

Communication status indicator does not matter

• Power status indicator is on

• All other status indicators are off

• Status of any

Communication status indicator does not matter

The following error exists

Inadequate system power

Processor not in run mode

Probable Cause

Improper line power voltage selection.

Either improper mode selected or user program logic error.

Recommended Action

Verify proper 120/240V power supply jumper selection. See

procedures starting on page 165.

1. Verify selected processor mode.

2. If in program or test mode, try to enter run mode.

a. If the keyswitch is in the REM position and there is no key, use the programmer.

b. If the keyswitch is in the REM or PROG position and you have the key, toggle to the RUN position.

Line power out of operating range.

3. If in suspend mode, check user program logic for suspend instructions.

1. Check proper 120/240V power supply jumper selection and incoming power connections.

Improper seating of power supply and/or processor in the chassis.

2. Monitor for proper line voltage at the incoming power connections.

1. Remove power and inspect the power supply and processor chassis connections.

2. Re-install the devices and re-apply power.

Defective processor, power supply, or chassis.

IMPORTANT

The processor only operates in slot 0 of the first chassis.

1. Attempt to put processor in run mode in existing chassis.

a. If the keyswitch is in the REM position and there is no key, use the programmer.

b. If the keyswitch is in the REM or PROG position and you have the key, toggle to the RUN position.

2. Place the processor in another chassis. Apply power, reconfigure, and attempt to put processor in run mode. If unsuccessful, replace the processor.

3. Place the power supply in another chassis and test. If unsuccessful, replace the power supply. If successful, replace the original chassis.

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154 Troubleshooting

SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

If the status indicators indicate

• Power status indicator is on

• Run status indicator is on

• All other status indicators are Off

• Status of any

Communication status indicator does not matter

• Power status indicator is on

• CPU Fault status indicator is on

• All other status indicators are off

• Status of any

Communication status indicator does not matter

The following error exists

System inoperable, no major CPU faults detected

CPU fault

Probable Cause Recommended Action

User program logic error.

Defective I/O devices or I/O wiring.

1. Monitor logic in Run mode and verify desired I/O status.

2. Check for minor CPU faults.

Test inputs and outputs according to I/O troubleshooting

CPU memory error.

Cycle power.

Faulty memory module.

1. Remove power and then remove the memory module from the processor.

2. Re-install the processor and re-apply power to the power supply. If steady CPU Fault status indicator changes to flashing, replace the existing memory module with a replacement module.

Faulty processor or power supply.

Refer to 6 for removing and installing memory modules.

1. Place the processor in another chassis not in the existing system and cycle power. If steady CPU Fault status indicator reappears, replace the processor.

Processor firmware installed incorrectly.

2. If CPU Fault status indicator clears, monitor the line power going to the power supply in existing system. Replace existing system power supply if line power checks OK.

If upgrading the processor to a different firmware level, verify that the firmware chip orientation matches the upgrade kit directions.

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Troubleshooting 155

SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

If the status indicators indicate

• Power status indicator is on

• CPU Fault status indicator is flashing

• All other status indicators are off

• Status of any

Communication status indicator does not matter

The following error exists

CPU major fault

Probable Cause Recommended Action

Initial CPU factory power-up condition.

1. See page 123 and follow the start-up procedures.

Hardware/software major fault detected.

2. Clear processor memory to get rid of the flashing CPU Fault status indicator.

1. If the error occurred during the download of a new program to the processor, check the position of the J4 jumper. See

page 161. If the jumper is not in the protected position:

(erratic, repetitive power cycling can cause a processor major hardware fault) a. Place the jumper in the protected position b. Re-download a valid user program to the processor

2. Use programmer to monitor and clear the fault (or if keyswitch in REM position): a. Monitor Status File word S:6 for major error code.

b. Refer to your programming software documentation or the

SLC 500 Instruction Set Reference Manual, publication

1747-RM001, for error codes and additional troubleshooting information.

c. Remove hardware/software condition causing fault.

d. Clear Status File S:1/13 major error bits, if set.

e. Clear Status File S:5 major error bits, if set.

f. Clear Status File S:6 major error code (optional).

g. Attempt to put processor in run mode.

If unsuccessful, repeat recommended action steps above.

3. Use the keyswitch to clear the fault. Toggle the keyswitch to

PROG and back to RUN. (See page 151). If fault occurs again,

use programmer to get error code and determine the source of the problem.

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156 Troubleshooting

SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors

If the status indicators indicate

• Power status indicator is on

• Run status indicator is on

• Force status indicator is on

• All other status indicators are off

• Status of any

Communication status indicator does not matter

• Power status indicator is on

• Run status indicator is on

• Force status indicator is flashing

• All other status indicators are off

• Status of any

Communication status indicator does not matter

• Power status indicator is on

• FLT status indicator is flashing

• Batt status indicator is on

• All Other status indicators are off

• Status of any

Communication status indicator does not matter

The following error exists

System does not operate per ladder logic

System does not operate per programmed forces

CPU major error with low or no battery back-up

Probable Cause Recommended Action

User forced I/O is disabling operation.

User programmed forces are not enabled.

Loss of RAM during power-down.

1. Monitor program file on-line and identify forced I/O.

2. Disable appropriate forces and test system conditions again.

1. Monitor program file on-line and identify programmed forces.

2. Enable appropriate forces and test system conditions again.

Once forces are enabled, the Force status indicator turns on

(steady).

1. Verify battery is connected. See page 139.

2. Replace the battery if you want RAM battery backup. See

page 139.

3. Refer to processor major fault recommended action steps.

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Troubleshooting 157

Identifying SLC 5/03, SLC 5/04, and SLC 5/05 Processor

Communication Errors

SLC 5/03. SLC 4/04, and SLC 5/05 Communication Errors

If the status indicators indicate

• Power status indicator is on

• DH-485, DH+, or ENET status indicator is off

• FLT status indicator is off or flashing

• Status of Run, Force,

Batt, and RS232 status indicators do not matter

• Power status indicator is on

• RS232 status indicator is off

• FLT status indicator is off or flashing

• Status of Run; Force;

DH-485, DH+, or ENET; or Batt status indicators do not matter

The following error exists

Fatal error and no communication

Probable Cause Recommended Action

Inadequate system power.

1. Check line power.

Communication channel is shut down.

Communication channel is damaged.

Inadequate system power.

2. Check 120/240V power supply jumper selection. See

page 108. Also, see the recommended actions for

inadequate system power on page 152.

Check communication channel configuration with your

programming software. Also, see page 163 to return the

processor to initial factory conditions.

Replace the processor.

1. Check line power.

Communication channel is shut down.

communication channel is damaged.

Channel configured for DF1 or User mode.

2. Check 120/240V power supply jumper selection. See

page 108. Also, see the recommended actions for

inadequate system power on page 152.

Check communication channel configuration with your

programming software. Also, see page 163 to return the

processor to initial factory conditions.

Replace the processor.

See your programming software documentation for channel configuration information.

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SLC 5/03. SLC 4/04, and SLC 5/05 Communication Errors

If the status indicators indicate

• Power status indicator is on

• DH-485, DH+, or ENET status indicator is flashing

• FLT status indicator is off or flashing

• Status of Run, Force,

Batt, and RS232 status indicators do not matter

The following error exists

The SLC 5/03 or

SLC 5/04 processor is trying to establish communication, but cannot find other active nodes.

(The DH-485 or

DH+ status indicator is flashing green.)

Probable Cause Recommended Action

DH-485 or DH+ communication parameters are improperly set up.

1. Check communication parameters of programmer.

Programmer and processor communication rate must match.

Programmer and processor node addresses must be different.

2. Try different combinations of: a. communication rate (default is 19.2 K for DH-485 and 57.6

K for DH+) b. node address (default is 1)

3. Try to increase the maximum node address.

(default is 31 for DH-485)

1. Check cable continuity.

Bad connection of communication device.

2. Check cable connections between programmer and processor.

Low or no power to communication device.

3. Check communication device (for example, the 1747-PIC interface). Replace if necessary.

1. Verify proper power supply selection and backplane loading.

(1747-PIC and 1747-AIC interface draw power off the backplane.)

2. Verify proper 120/240V power supply jumper selection. See

1. Remove this device from the DH+ network.

Duplicate drop is detected. (The DH+ status indicator is flashing red.)

Another DH+ device is already on the DH+ network at this node address.

2. Cycle power.

An ENET fault is being reported via a code. (The ENET status indicator is flashing red.)

A hardware or software fault has occurred.

3. Reset the node address to an unused node before reconnecting device to the DH+ network. (Can perform reset if on-line via channel 0 RS-232 port without disconnecting from DH+.)

Contact Rockwell Automation for assistance.

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Troubleshooting 159

SLC 5/03. SLC 4/04, and SLC 5/05 Communication Errors

If the status indicators indicate

• Power status indicator is on

• RS232 status indicator is flashing

• FLT status indicator is off or flashing

• Status of Run; Force;

DH-485, DH+, or ENET; or Batt status indicators do not matter

The following error exists

The processor is trying to establish communication, but cannot find other active nodes

Probable Cause Recommended Action

DH-485 communication parameters are set up improperly.

1. Check communication parameters of programmer.

Programmer and processor communication rate must match.

Programmer and processor node addresses must be different.

2. Try different combinations of: a. communication rate (default is 19.2 K for DH-485) b. node address (default is 1)

3. Try to increase the maximum node address. (default is 31 for

DH-485)

1. Check cable continuity.

Bad connection of communication

Device.

2. Check cable connections between programmer and processor.

Low or no power to communication device.

3. Check communication device (for example, the 1747-PIC interface). replace if necessary.

1. Verify proper power supply selection and backplane loading.

(1747-PIC and 1747-AIC interface draw power off the backplane.)

2. Verify proper 120/240V power supply jumper selection. See

2. Check cable pinouts. Also, see appendix C for RS-232

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160 Troubleshooting

SLC 5/03. SLC 4/04, and SLC 5/05 Communication Errors

If the status indicators indicate

• Power status indicator is on

• RS232 status indicator is off

• FLT status indicator is off or flashing

• Status of Run; Force;

DH-485, DH+, or ENET; or Batt status indicators do not matter

The following error exists

The processor is not transmitting

Probable Cause Recommended Action

Channel is configured for

DH-485 mode.

RS232/DF1 parameters are set up improperly.

Check communication parameters of channel configuration.

Also, refer to your programming software documentation.

Check the following communication parameters of programmer and channel configuration.

1. communication rate - programmer and processor communication rates must match

2. DF1 node addresses (default is 1 for half-duplex, and 9 for full-duplex) - programmer and processor addresses must be different

3. error checking

• Power status indicator is on

• FLT status indicator is on

• Status of all other status indicators do not matter

A fatal error has occurred

4. number of data bits

Hardware problem.

1. Check cable connections.

Excessive noise or a faulty processor.

pinouts.

1. Cycle power to obtain flashing FLT status indicator and default program.

2. Examine the error code following the power cycle. Take appropriate action.

3. Reload the program.

4. Contact your local Rockwell Automation representative if the error persists.

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Troubleshooting 161

Identifying Processor

Errors while Downloading an Operating System

The download process of the operating system by the SLC 5/03,

SLC 5/04, and SLC 5/05 processors takes up to 2.5 minutes. While the download is in progress, the RUN and FLT status indicators remain off. The other four status indicators - RS232, DH485 (DH

+ on the SLC

5/04 and ENET on the SLC 5/05), FORCE, and BATT - turn on and off in a walking bit sequence. If the download is successful, these four status indicators remain on together.

ATTENTION

Jumper J4, on the bottom corner of the motherboard, provides write-protection from any download of a new operating system. The out of the box position of this jumper is PROTECT, or write-protect. Without the jumper, the processors are write-protected. Do not place the jumper to the program position during normal processor use.

Jumper Placement

Catalog and Serial

Number Label

Place the operating system upgrade label here.

The SLC 5/03, SLC 5/04, and SLC 5/05 processors are protected from the operating system download when jumper J4 is in this position:

The SLC 5/03, SLC 5/04, and SLC 5/05 processors accept the operating system download when jumper J4 is in this position:

CAT

SLC 500

PROCESSOR UNIT

SER FAC

PLACE OS UPGRADE LABEL HERE

OS #

OPERATING SYSTEM INFO

SER FRN

SERIAL NO.

PROC. REV.

WHITE

RED

BATTERY

PROTECT

PROGRAM

CURRENT REQUIREMENTS: 1A @ 5 VDC

200mA @ 24 VDC

LISTED IND. CONT. EQ.

FOR HAZ. LOC. A196

SA ®

CLASS 1, GROUPS A, B, C AND D, DIV. 2

OPERATING TEMPERATURE CODE T3C

MADE IN USA

Daughter Board

Operating System

Mother Board

Upgrade/Memory Module

Socket

Jumper J4

If the download is not successful, the FLT status indicator turns on and a combination of status indicators flash on and off indicating an error condition. The following table provides you with information regarding error messages, possible cause(s) for the error, and recommended action to resolve the error.

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162 Troubleshooting

Status Indicator The following error exists

Probable Cause Recommended Action

Off Off On

Off On

Off NVRAM error

Off On Hardware

Watchdog

Timeout

Off Off Fatal Hardware

Error

On Off Off On Off On On Corrupted

Operating

System Memory

Module

On Off On On Off On Off Flash EPROM

Failure

Off On

Off Off On

Off On

Off Corrupt or

Missing

Operating

System

Downloadable

Operating

System Failure

Off Incompatible

Platform

Memory

Write-Protected

Major hardware failure due to noise, improper grounding, or poor power source.

Cycle power and see if the error repeats itself. If the error clears, you should be able to download the operating system. If the error persists, contact your

Rockwell Automation representative.

Major hardware failure due to noise, improper grounding, or poor power source.

Cycle power and see if the error repeats itself. If the error clears, you should be able to download the operating system. If the error persists, contact your

Rockwell Automation representative.

Major hardware failure due to noise, improper grounding, or poor power source.

Cycle power and see if the error repeats itself. If the error clears, you should be able to download the operating system. If the error persists, contact your

Rockwell Automation representative.

The operating system on the Flash EPROM is corrupt.

Cycle power and see if the error repeats itself. If the error persists, either contact your Rockwell Automation representative for a new operating system memory module, or download the old operating system.

The processor flash is corrupt.

Cycle power and see if the error repeats itself. If the error clears, you should be able to download the operating system. If the error persists, contact your

Rockwell Automation representative.

The operating system is missing or has been corrupted.

Cycle power and see if the error repeats itself. If the error clears, you should be able to download the operating system. If the error persists, contact your

Rockwell Automation representative for a new operating system.

Download the operating system.

Failure during transmission of downloadable operating system.

The upgrade of the operating system is incompatible with the processor hardware.

An attempt was made to download the operating system onto write-protected memory.

Use an operating system that is compatible with your processor hardware.

Change the jumper on the processor to the program position.

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Troubleshooting 163

Returning the SLC 5/03, SLC 5/04, and SLC 5/05 Processors to

Initial Factory Conditions

We only recommend this procedure if the communication channels have been shut down due to the configuration parameters, or if you absolutely cannot establish communication with the processor.

WARNING

If you return the processor to the initial factory conditions, the user program is lost and communication configurations are returned to their default settings.

Follow this procedure to return the processor to initial factory conditions.

1. Remove power from the SLC 500 power supply.

2. Remove the processor from the chassis.

3. Disconnect the battery by removing the battery connector from its socket.

4. Locate the VBB and GND connections on the right side of the motherboard.

5. Place a small bladed screwdriver across the VBB and GND connections and hold for 60 seconds. This returns the processor to the initial factory conditions.

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164 Troubleshooting

SLC 5/03 (1747-L531, 1747-L532 and 1747-L533) Processors

Keyswitch

GND

Mother Board

Right Side View

SLC 5/04 (1747-L541, 1747-L542, and 1747-L543)

SLC 5/05 (1747-L551, 1747-L552, and 1747-L553) Processors

VBB

Keyswitch

GND VBB

Mother Board

Right Side View

GND

VBB

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Troubleshooting 165

Troubleshooting Your Input

Modules

The following will assist you in troubleshooting your input modules.

Input Circuit Operation

An input circuit responds to an input signal in the following manner.

1. An input filter removes false signals due to contact bounce or electrical interference.

2. Opto-electrical isolation protects the input circuit and backplane circuits by isolating logic circuits from input signals.

3. Logic circuits process the signal.

4. An input status indicator turns on or off indicating the status of the corresponding input device.

Input

Conditioning

Opto-Electrical

Isolation

Logic

Circuits

Backplane status indicator

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166 Troubleshooting

Troubleshooting Your Input Modules

If your input circuit status indicator is

Off

And your input device is

On/closed/activated

Off/open/deactivated Your program operates as though it is on and/or the input circuit will not turn off.

On/closed/activated

Off/open/deactivated

And

Your input device will not turn off.

Your program operates as though it is off.

Your program operates as though it is off and/or the input circuit will not turn on.

Your input device will not turn on.

Your program operates as though it is on.

Probable Cause Recommended Action

Device is shorted or damaged.

Input circuit is damaged.

Input is forced off in program.

Verify device operation. Replace device.

Verify proper wiring. Try other input circuit. Replace module.

Check the FORCED I/O or FORCE status indicator on processor and remove forces.

Input device Off-state leakage current exceeds input circuit specification.

Input device is shorted or damaged.

Check device and input circuit specifications. Use load resistor to bleed-off current.

Verify device operation. Replace device.

Verify proper wiring. Try other input circuit. Replace module.

Input circuit is damaged.

Input circuit is incompatible.

Low voltage across the input.

Check specification and sink/source compatibility (if dc input).

Check the voltage across input circuit and check source voltage.

Incorrect wiring or an open circuit.

Input signal turn-on time too fast for input circuit.

Check wiring and COMmon connections.

Check timing specifications.

Input circuit is damaged.

Input device is shorted or damaged.

Input is forced on in program.

Verify proper wiring. Try other input circuit. Replace module.

Verify operation. Replace device.

Input circuit is damaged.

Check processor FORCED I/O or

FORCE status indicator and remove forces. Verify proper wiring. Try other input circuit. Replace module.

Verify proper wiring. Try other input circuit. Replace module.

Publication 1747-IN011F-EN-P - May 2007

Troubleshooting Your

Output Modules

Troubleshooting 167

The following will assist you in troubleshooting your output modules.

Output Circuit Operation

An output circuit controls the output signal in the following manner.

1. Logic circuits determine the output status.

2. An output status indicator indicates the status of the output signal.

3. Opto-electrical isolation separates output circuit logic and backplane circuits from field signals.

4. The output driver turns the corresponding output on or off.

Backplane

Logic

Circuits

Opto-Electrical

Isolation

Logic

Circuits

Output

Drivers

Output status indicator

Publication 1747-IN011F-EN-P - May 2007

168 Troubleshooting

Troubleshooting Your Output Modules

If your

Output

Circuit status indicator is

And your output device is

And Probable Cause Recommended Action

On/energized

Off/de-energized

Your program indicates that the output circuit is off or the output circuit will not turn off.

Programming problem.

Check for duplicate outputs and addresses using the search function.

If using subroutines, outputs are left in their last state when not executing subroutines.

Your output device will not turn on and the program indicates that it is on.

Output is forced on in program.

Output circuit is damaged.

Low or no voltage across the load.

Incorrect wiring or open circuit.

Output device is incompatible.

Output circuit is damaged.

Use the force function to force output off. If this does not force the output off, output circuit is damaged. If the output does force off, then check again for logic/programming problem.

Check processor FORCED I/O or FORCE status indicator and remove forces.

Use the force function to force the output off. If this forces the output off, then there is a logic/programming problem.

If this does not force the output off, the output circuit is damaged. Try other output circuit. Replace module.

Measure the source voltage and check specifications.

Check wiring and COMmon connections.

Check specifications and sink/source compatibility (if dc output).

Check wiring. Try other output circuit. Replace module.

Publication 1747-IN011F-EN-P - May 2007

Troubleshooting 169

If your

Output

Circuit status indicator is

Off

And your output device is

And Probable Cause Recommended Action

On/energized Your output device will not turn off and the program indicates that it is off.

Output device is incompatible.

Output circuit off-state leakage current may exceed output device specification.

Incorrect wiring.

Check specifications.

Check specifications. Use load resistor to bleed off leakage current. See output specifications.

Check wiring. Disconnect from SLC processor and verify device operation.

Verify device operation. Replace device.

Output device is shorted or damaged.

Output circuit is damaged.

Check wiring. Try other output circuit. Replace module.

Off/de-energized Your program indicates that the output circuit is on or the output circuit will not turn on.

Programming problem.

Check for duplicate outputs and addresses using search function.

If using subroutines, outputs are left in their last state when not executing subroutines.

Output is forced off in program.

Output circuit is damaged.

Use the force function to force output on. If this does not force the output on, output circuit is damaged. If the output does force on, then check again for logic/programming problem.

Check processor FORCED I/O or FORCE status indicator and remove forces.

Use the force function to force the output on. If this forces the output on, then there is a logic/programming problem.

If this does not force the output on, the output circuit is damaged. Try other output circuit. Replace module.

Publication 1747-IN011F-EN-P - May 2007

170 Troubleshooting

Notes:

Publication 1747-IN011F-EN-P - May 2007

Chapter

Replacement Parts

This chapter provides a list of replacement parts and a list of replacement terminal blocks for your SLC 500 controller.

Replacement Cables and

Connectors

Description

Chassis Interconnect Cable - The 1746-C7 cable is a 152.4 mm (6 in.) ribbon cable used when linking modular hardware style chassis up to 152.4 mm (6 in.) apart in an enclosure.

Chassis Interconnect Cable - The 1746-C9 cable is a 914.4 mm (36 in.) cable used when linking modular hardware style chassis from 152.4 mm (6 in.) up to 914.4 mm (36 in.) apart in an enclosure.

Chassis Interconnect Cable - The 1746-C16 cable is a 1.27m (50 in.) cable used when linking modular hardware style chassis from 0.914m (36 in.) up to 1.27m (50 in.) apart in an enclosure. This is the longest chassis interconnect cable recommended by Allen-Bradley.

32 Point Mating Connector - This connector is used for terminating a user-made cable. It is compatible with the DIN

RAIL mountable terminal block interface module, catalog number 1492-IFM40x (used with 32-point I/O modules).

Replacement Processor to Peripheral Programming/Communication Cable - This 1.8 m (6 ft) cable is used to connect the interface converter to the SLC 500 controller when using personal computer interface software. This cable is also used to connect the Hand-held Terminal to the SLC 500 controller and to connect the Data Table Access Module to the

SLC 500 controller.

Replacement Processor to Isolated Link Coupler Cable - This 304.8 mm (12 in.) cable is used to connect the SLC 500 controller to the isolated link coupler.

Communication Module to Isolated Link Coupler Cable - This 914.4 mm (36 in.) cable is used to connect communication modules (for example, 1746-BAS, 1747-KE, and 1747-UIC interface) to the isolated link coupler. The isolated link coupler must be powered by an external power supply or connected to a device with a 1747-C10 or 1747-C11 cable.

Replacement Processor to Peripheral Programming/Communication Cable - This 6.09 m (20 ft) cable is used to connect the interface converter to the SLC 500 controller when using personal computer interface software. This cable is used to connect the Data Table Access Module to the SLC 500 controller.

SLC 5/03, SLC 5/04, and SLC 5/05 RS-232 Programmer Cable - This 3.96 m (12 ft) cable has two 9-pin DTE connectors and is used to connect the SLC processor RS-232 channel (channel 0) to a personal computer serial port.

SLC 5/03, SLC 5/04, and SLC 5/05 Communication Cable - This 45 cm (17.7 in.) cable has two 9-pin DTE connectors and is used to connect the SLC processor RS-232 channel (channel 0) to port 1 of the 1761-NET-AIC advanced interface converter.

SLC 5/03, SLC 5/04, and SLC 5/05 Communication Cable - This 2 m (6.5 in.) cable has a 9-pin DTE and an 8-pin mini

DIN connector and is used to connect the SLC processor RS-232 channel (channel 0) to port 2 of the 1761-NET-AIC advanced interface converter.

SLC 5/03, SLC 5/04, and SLC 5/05 Communication Cable - This 45 cm (17.7 in.) cable has a 9-pin DTE and an 8-pin mini

DIN connector and is used to connect the SLC processor RS-232 channel (channel 0) to port 2 of the 1761-NET-AIC advanced interface converter.

Cat. No.

1746-C7

1746-C9

1746-C16

1746-N3

1747-C10

1747-C11

1747-C13

1747-C20

1747-CP3

1761-CBL-AC00

1761-CBL-PM02

1761-CBL-AP00

171 Publication 1747-UM011F-EN-P - May 2007

172 Replacement Parts

Description

RJ45 to 6-Pin Phoenix Connector Communication Cable - This 3 m (9.8 ft) cable is used to connect the SLC 500 fixed,

SLC 5/01, SLC 5/02, and SLC 5/03 processor RJ45 port to port 3 of the 1761-NET-AIC advanced interface converter.

RJ45 to 6-Pin Phoenix Connector Communication Cable - This 9.5 m (31.2 ft) cable is used to connect the SLC 500 fixed,

SLC 5/01, SLC 5/02, and SLC 5/03 processor RJ45 port to port 3 of the 1761-NET-AIC advanced interface converter.

Catalog 1492 pre-wired interface cables

Cat. No.

1761-CBL-AS03

1761-CBL-AS09

1492

Cable Connectivity Summary

For Connectivity Between These Devices

1746-A4, 1746-A7, 1746-A10, or

1746-A13 chassis

1746-A4, 1746-A7, 1746-A10, or

1746-A13 chassis

Preferred Cable

Cat. No.

1746-C7

1746-C9

1746-C16

1747-C10 1747-PIC Personal Interface Converter

1747-DTAM-E Data Table Access module

2707-Lxxx, 2707-Vxxx DTAM Plus

1747-AIC Isolated Link Coupler

SLC 500 processors (DH-485 channel)

SLC 500 processors (DH-485 channel) 1747-C11

1747-KE DH-485/RS-232C interface module

1746-BAS BASIC module

1746-xx32 32 point I/O modules

SLC 5/03 processor (RS-232 channel 0)

SLC 5/04 processor (RS-232 channel 0)

SLC 5/05 processor (RS-232 channel 0)

1746-I/O

1747-AIC Isolated Link Coupler

1492-IFM40x

Personal computer serial port (9-Pin

DTE)

1747-UIC RS-232 port

1492-IFMxx interface modules

1747-SN Remote I/O Scanner

1747-DCM Direct Communication Module

1747-ASB SLC Remote I/O Adapter module

SLC 5/04 processors (1747-L541,

1747-542, and 1747-543)

Remote I/O network

1747-AIC Isolated Link Coupler 1747-AIC Isolated Link Coupler

1770-KF3 DH-485 communication interface

1747-UIC RJ-485 port SLC 500 processors (DH-485 channel)

1747-C13

1492-CABLExH

1747-CP3

1492-CABLExx

Belden 9463

Belden 9842 or 3106A

1747-C13 -

These Cables

May Be Used

1747-C11

1747-C20

1747-C10

1747-C13

1747-C20

1747-C11

1747-C10

Publication 1747-UM011F-EN-P - May 2007

Replacement Parts 173

Replacement Terminal Blocks

Description

Replacement Terminal Block (Blue) - Used with dc I/O modules, catalog numbers 1746-IB16, 1746-IC16, 1746-IH16,

1746-IV16, 1746-OBP8, 1746-OB16, 1746-OB16E, 1746-OBP16, 1746-OVP16 1746-OV16, 1746-IN16, 1746-IG16,

1746-1746OG16

Replacement Terminal Block (Orange) - Used with relay output modules, catalog numbers 1746-OW16, 1746-OX8

Replacement Terminal Block (Green) - Used with Specialty I/O modules, catalog numbers 1746-HSCE, 1746-IO12,

1746-NR4, 1746-NI8

Replacement Terminal Block (Red) - Used with ac I/O modules, catalog numbers 1746-IA16, 1746-OA16, 1746-IM16,

1746-OAP12

Replacement Terminal Block - 2-position terminal block used with analog outputs, catalog numbers 1746-NO4I,

1746-NO4V

Replacement Terminal Block - 8-position terminal block used with analog outputs, catalog numbers 1746-NO4I,

1746-NO4V

Replacement Terminal Block - Used with analog input modules, catalog numbers 1746-NI4, 1746-NIO4I, 1746-NIO4V,

1746-FIO4I, 1746-FIO4V

Replacement Terminal Block - Used with RIO Communication modules, catalog numbers 1747-SN, 1746-DSN,

1746-DCM

Replacement Terminal Block - 6-position DH-485 plug/connector; used with DH-485 Link Coupler, catalog number 1747-AIC and Advanced Interface Converter, catalog number

1761-NET-AIC

Replacement Terminal Block - used with SLC 500 Remote I/O Adapter module, catalog number 1747-ASB

Replacement Terminal Block - used with Thermocouple/mV module, catalog number 1746-NT4

Replacement Terminal Block - 3-position DH+ connector; used with SLC 5/04 processors, catalog numbers 1747-L541,

1747-L542, -L542P, 1747-L543

Replacement Terminal Block (Green) - used with Thermocouple/mV Input module, catalog number 1746-NT8

Replacement Terminal Block (Green) - used with RTD/resistance Input module, catalog number 1746-NR8

Cat. No.

1746-RT25B

1746-RT25C

1746-RT25G

1746-RT25R

1746-RT26

1746-RT27

1746-RT28

1746-RT29

1746-RT30

1746-RT31

1746-RT32

1746-RT33

1746-RT34

1746-RT35

Other Replacement Hardware

Description

Replacement Fuses — Five fuses per package. Orders must be for multiples of five.

Catalog number for 1746-P1 power supply.

Catalog number for 1746-P2 power supply.

Catalog number for 1746-P3 power supply.

Fixed I/O ac units, MDL 1.25 Ampere.

Fixed I/O dc units, MDL 1.6 Ampere.

Catalog numbers for 1746-OBP16 and 1746-OVP16 output modules.

Catalog numbers for 1746-OAP12 output module.

Cat. No.

1746-F1

1746-F2

1746-F3

1746-F4

1746-F5

1746-F8

1746-F9

Publication 1747-UM011F-EN-P - May 2007

174 Replacement Parts

Description

Modular Card Slot Fillers - Two fillers per package. Orders must be for multiples of two.

Connector - Mating connector for 32-point user-made cable.

Kit consisting of 4 replacement terminal covers and labels for 4, 8, 16 I/O modules.

Replacement Covers and Labels - Two covers per package. Orders must be for multiples of two covers.

Catalog number for 1746-P1.

Catalog numbers for 1746-P2 and 1746-P3 power supplies.

SLC 5/01 and SLC 5/02 processors.

Specialty I/O.

SLC 5/03, SLC 5/04, and SLC 5/05 processor.

Catalog number for 1747-ASB module.

Cat. No.

1746-N2

1746-N3

1746-R9

1746-R10

1746-R11

1746-R12

1746-R13

1746-R14

1746-R16

Replacement Fuse Holder for catalog number 1746-OAP12. Two fuse holders per package. Orders must be for multiples of two. (Price is per holder.)

Replacement Retainer Clips - Four clips per package. Orders must be for multiples of four.

Replacement Remote I/O Address Labels: Includes five labels for remote PLC system and five labels for remote SLC system.

Replacement Octal Label Kit - Kit includes one octal status indicator label and one door label module.

1746-R17

1746-R15

1746-RL35

1746-RL40 for 1746-IA16 module

for 1746-IB16 module

for 1746-IG16 module

1746-RL41

1746-RL42

for 1746-IM16 module

for 1746-IN16 module

for 1746-IV16 module

for 1746-ITB16 module

for 1746-ITV16 module

for 1746-OA16 module

for 1746-OB16 module

for 1746-OG16 module

for 1746-OV16 module

for 1746-OW16 module

for 1746-OBP16 module

for 1746-OVP16 module

for 1746-OAP12 module

for 1746-IC16 module

for 1746-IH16 module

for 1746-IB32 module

for 1746-IV32 module

for 1746-OB32 and 1746-OB32E module

1746-RL43

1746-RL44

1746-RL45

1746-RL46

1746-RL47

1746-RL50

1746-RL51

1746-RL52

1746-RL53

1746-RL54

1746-RL55

1746-RL56

1746-RL57

1746-RL58

1746-RL59

1746-RL60

1746-RL61

1746-RL70

Publication 1747-UM011F-EN-P - May 2007

Replacement Parts 175

Description

for 1746-OV32 module

for 1746-OB16E module

Lithium Battery Assembly. This is an optional part used for the SLC 500 fixed and modular hardware style processors and the Hand-held Terminal. Refer to product documentation for proper storage and handling instructions. For disposal information, consult your nearest Rockwell Automation Sales Office.

Replacement Keys for the SLC 5/03, SLC 5/04, and SLC 5/05 processors.

Cat. No.

1746-RL71

1746-RL72

1747-BA

1747-KY1

Publication 1747-UM011F-EN-P - May 2007

176 Replacement Parts

Notes:

Publication 1747-UM011F-EN-P - May 2007

Appendix

Specifications

This appendix provides the specifications for the SLC 500 processors as well as the SLC power supplies.

SLC 500 System General

Specifications

Attribute

Temperature, operating

Temperature, storage

Humidity

Vibration, operating

Vibration, non-operating

Shock, operating

Shock, non-operating

Free fall (drop test)

Safety

Certification

The table below lists SLC 500 system test specifications.

Value

0 °C...60 °C (32 °F...140 °F)

-40 °C...85°C (-40 °F...185 °F)

Isolation between communication circuits: 500V dc

Isolation between backplane and I/Os: 1500V ac

Flammability and electrical ignition: UL94V-0

UL listed to US and Canadian Safety Standards

Class I, Groups A, B, C or D, Division 2

CE compliant for all applicable directives

C-Tick marked for all applicable acts

Industry Standard

Not applicable

5 to 95% without condensation

2.5 g at 5...2000 Hz

5 g at 5...2000 Hz

Not applicable

Not applicable all modules except relay contact

30.0 g (3 pulses, 11 ms) relay contact modules - OW, OX, IO combo

10.0 g (3 pulses, 11 ms)

Not applicable

50.0 g (3 pulses, 11 ms)

Portable, 2.268 kg (5 lb) or less at 0.762 m (30 in.)

(six drops)

Not applicable

Portable, 2.268 kg (5 lb) or more at 0.1016 m (4 in.) (three flat drops)

Dielectric withstand: 1500V ac

Not applicable

UL 508, CSA C22.2 No. 142

Not applicable

177 Publication 1747-UM011F-EN-P - May 2007

178 Specifications

Processor General

Specifications

The table below lists general specifications for SLC 500 modular processors.

Attribute (1747-) SLC 5/01

L511 L514

SLC 5/02 SLC 5/03

L524 L531 L532 L533

SLC 5/04

L541 L542 L543

SLC 5/05

L551 L552 L553

Program memory

(words)

I/O capacity

Remote I/O capacity

Chassis/slots, max

Standard RAM

1 K 4 K

3940 discrete

Not applicable

4 K

3 Chassis/30 Slots of I/O

Capacitor -

2 weeks

(2)

optional lithium battery -

5 years

8 K 16 K 32 K 16 K 32 K 64 K 16 K 32 K

4096 discrete

Processor memory and chassis power limit up to 4096 inputs and 4096 outputs

64 K

Lithium battery

2 years

Capacitor - 30 minutes minimum

EEPROM Memory back-up options

Status indicators

Flash EPROM

Run

CPU Fault

Forced I/O

Battery Low

Run

CPU Fault

Forced

I/O

Battery

Low

COMM

Run

CPU Fault

Forced I/O

Battery Low

RS-232

DH-485

Run

CPU Fault

Forced I/O

Battery Low

RS-232

DH +

Run

CPU Fault

Forced I/O

Battery Low

RS-232

Ethernet

Power supply loading 90 mA at 5V dc

0 mA at 24V dc

500 mA at 5V dc 1A at 5V dc 1A at 5V dc

175 mA at 24V dc

0 mA at 24V dc

(4) 0 mA at 24V dc

±54 sec./month at 25 °C (77 °F); ±81 sec./month at 60 °C (140 °F) Clock/calendar accuracy

(1)

Program scan hold-up time after loss of power

Not applicable

20 ms...3 s (dependent on power supply loading)

Noise immunity NEMA Standard ICS 2-230

Temperature rating operating: 0 °C...60 °C (32 °F...140°F); storage: -40 °C...85 °C (-40 °F...185 °F)

Humidity

Shock, operating

Vibration

5 to 95% without condensation

30 g

Displacement:.015 in., peak-to-peak at 5...57 Hz

Acceleration: 2.5 g at 57...2000 Hz

Publication 1747-UM011F-EN-P - May 2007

Specifications 179

Attribute (1747-)

Certification (when product is marked)

SLC 5/01

L511 L514

SLC 5/02 SLC 5/03

L524 L531 L532 L533

SLC 5/04

L541 L542 L543

SLC 5/05

L551 L552

UL Listed Industrial Control Equipment for Class I, Division 2, Groups A, B, C, D Hazardous Locations

C-UL Listed Industrial Control Equipment for Class I, Division 2, Groups A, B, C, D Hazardous Locations

L553

(3)

European Union 89/336/EEC EMC Directive, compliant with:

EN 50082-2 Industrial Immunity

EN 50081-2 Industrial Emissions or

EN 61000-6-2 Industrial Immunity

EN 61000-6-4 Industrial Emissions

European Union 73/23/EEC LVD Directive, compliant with safety related portions of:

EN61131-2 Programmable Controllers

C-Tick, Australian Radio Communications Act, compliant with:

AS/NZS 2064 Industrial Emissions

(1)

RTC should not be relied upon for time-based periodic control. Use STI subroutine for periodic control.

(2)

See Capacitor Memory Backup vs. Temperature Curve.

(3)

See the Product Certification link at http://ab.com for Declarations of Conformity, Certificates, and other certification details.

(4)

SLC 5/04 processors manufactured prior to April 2002 draw 200 mA at 24V dc. Check your label to verify your processor’s current draw.

Power Supply

Specifications

This section provides specifications for the SLC 500 power supplies.

1746-P1, 1746-P2, 1746-P3, and 1746-P4 Power Supplies

Attribute

Line voltage

Typical line power requirement

Inrush current, max

Internal current capacity

Fuse protection

Isolation

(3)

(1)

24V dc user-power current capacity

24V dc user-power voltage range

User-supplied overcurrent protection, max

(2)

Ambient temperature, operating

Value

1746-P1

135VA

20 A

2 A at 5V dc

0.46 A at 24V dc

1746-F1 or equivalent

(5) (6)

200 mA

18...30V dc

15 A

1746-P2

85...132/170...265V ac, 47...63 Hz

180VA

5 A at 5V dc

0.96 A at 24V dc

1746-F2 or equivalent

(5) (8)

1746-P3 1746-P4

19.2....28.8V dc 85...132/170...265V ac 47...63

90VA 240VA

3.6 A at 5V dc

0.87 A at 24V dc

45 A

10.0 A at 5V dc

2.88 A at 24V dc

(10)

Fuse is soldered in place 1746-F3 or equivalent

(5) (9) not applicable not applicable

0 °C...60 °C (32 °F...140 °F)

Current capacity is derated 5% above 55 °C (131°F)

1800V ac RMS for 1 s 600v ac rms for

1 s

1 A

(1)

20.4...27.6V dc

15 A

0 °C...60 °C (32 °F...140 °F) no derating

2600V dc for 1 s

Publication 1747-UM011F-EN-P - May 2007

180 Specifications

Attribute

CPU hold-up time

Certification

(4)

(when product is marked)

Value

1746-P1 1746-P2 1746-P3

20 ms (full load)

3000 ms (no load)

5 ms (full load)

1000 ms (no load)

UL Listed Industrial Control Equipment for Class I,

Division 2, Groups A, B, C, D Hazardous Locations

C-UL Listed Industrial Control Equipment for Class I,

Division 2,

Groups A, B, C, D Hazardous Locations

1746-P4

20 ms (full load)

3000 ms (no load)

UL Listed Industrial Control

Equipment

CSA Certified Process Control

Equipment for

Class I, Div 2, Groups A, B, C,

D Hazardous Locations

(7)

European Union 89/336/EEC EMC Directive, compliant with:

EN 50082-2 Industrial Immunity

EN 50081-2 Industrial Emissions or

EN 61000-6-2 Industrial Immunity

EN 61000-6-4 Industrial Emissions

European Union 73/23/EEC LVD Directive, compliant with safety related portions of:

EN61131-2 Programmable Controllers

C-Tick, Australian Radio Communications Act, compliant with:

AS/NZS 2064 Industrial Emissions

(1)

Power supply fuse is to guard against fire hazard due to short-circuit conditions. Fuse may not protect the supply from miswiring or excessive transient in the power line.

(2)

Use time-delay type overcurrent protection in all ungrounded conductors.

(3)

Isolation is between input terminals and backplane.

(4)

CPU hold-up time is for 0V unless specified. Hold-up time is dependent on power supply loading.

(5)

Fuse sizes specified are for end-devices only. Fuse size may need to be reduced depending on the size of circuit wiring.

(6)

Equivalent fuses: 250V-3A fuse, nagasawa ULCS-61ML-3, or BUSSMAN AGC 3.

(7)

See the Product Certification link at http://ab.com for Declarations of Conformity, Certificates, and other certification details.

(8)

Equivalent fuse: 250V-3A fuse, SANO SOC SD4, or BUSSMAN AGC 3.

(9)

Equivalent fuse: 125V-5A fuse, LITTLEFUSE 223.

(10)

The combination of all output power (5 volt backplane, 24 volt backplane, and 24 volt user source) cannot exceed 70 watts.

Publication 1747-UM011F-EN-P - May 2007

Specifications 181

1746-P5, 1746-P6, and 1746-P7 Power Supplies

Attribute

Line voltage

Typical line power requirement

Inrush current, max

Internal current capacity

Value

1746-P5

90-146V dc

85VA

20A

5 A at 5V dc

0.96 A at 24V dc

1746-P6

30-60V dc

100VA

1746-P7

10-30V dc

(5)

12V dc input: 50VA

20 A (required for turn-on)

24V dc input: 75VA

12V dc input:

2.0 A at 5V dc 0.46 A at 24V dc

See P7 current capacity chart

24V dc input:

3.6 A at 5V dc

0.87 A at 24V dc

Fuse protection

(1) Fuse is soldered in place

24V dc user-power current capacity 200 mA

24V dc user-power voltage range 18-30V dc

Ambient temperature, operating not applicable

0 °C...60 °C (32 °F...140 °F)

Current capacity is derated 5% above 55 °C (131°F)

1800V ac RMS for 1 s 600V ac RMS for 1 s

Isolation

(2)

CPU hold-up time

(3)

Certification

(when product is marked)

20 ms (full load)

3000 ms (no load)

5 ms (full load)

1500 ms (no load)

12V dc input:

1.37 ms at 0V dc (full load)

895 ms at 0V dc (no load)

10 ms at 9V dc (full load) continuous at 9V dc (no load)

24V dc input:

40 ms at 0V dc (full load)

1860 ms at 0V dc (no load)

790 ms at 11V dc (full load) continuous at 11V dc (no load)

UL Listed Industrial Control Equipment for Class I, Division 2, Groups A, B, C, D Hazardous

Locations

C-UL Listed Industrial Control Equipment for Class I, Division 2, Groups A, B, C, D Hazardous

Locations

(4)

European Union 89/336/EEC EMC Directive, compliant with:

EN 50082-2 Industrial Immunity

EN 50081-2 Industrial Emissions or

EN 61000-6-2 Industrial Immunity

EN 61000-6-4 Industrial Emissions

European Union 73/23/EEC LVD Directive, compliant with safety related portions of:

EN61131-2 Programmable Controllers

C-Tick

Australian Radio Communications Act, compliant with:

AS/NZS 2064 Industrial Emissions

(1)

Power supply fuse is intended to guard against fire hazard due to short-circuit conditions. This fuse may not protect the supply from miswiring or excessive transient in the power line.

(2)

Isolation is between input terminals and backplane.

(3)

CPU hold-up time is for 0V unless specified. Hold-up time is dependent on power supply loading.

(4)

See the Product Certification link at http://ab.com for Declarations of Conformity, Certificates, and other certification details.

(5)

See page 72 for information on power supply under voltage operation.

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182 Specifications

Publication 1747-UM011F-EN-P - May 2007

DH-485 Network

Description

Appendix

Setting Up the DH-485 Network

The information in this appendix will help you plan, install, and operate the SLC 500 processor in a DH-485 network. This chapter also contains information that describes the DH-485 network functions, network architecture, and performance characteristics. It also covers:

• DH-485 network description.

• DH-485 network protocol.

• DH-485 token rotation.

• DH-485 network initialization.

• devices that use the DH-485 network.

• 1747-AIC isolated link coupler for DH-485.

• 1747-UIC USB to DH-485 interface converter.

• example system configuration

(includes 1761-NET-AIC advanced interface converter).

• important planning considerations.

• installing the DH-485 network.

The DH-485 network passes information between devices on the plant floor. The network monitors process parameters, device parameters, device status, process status and application programs to support data acquisition, data monitoring, program upload/download and supervisory control.

The DH-485 network offers:

• interconnection of 32 devices.

• multi-master capability.

• token passing access control.

• the ability to add or remove nodes without disrupting the network.

• maximum network length of 1219 m (4000 ft).

(1)

The following section describes the protocol used to control message transfers on the DH-485 network. The protocol supports two classes of devices: initiators and responders. All initiators on the network get

(1)

The network can be extended to 2438 m (8000 ft) by connecting two AIC+ Advanced Interface Converters

(1761-NET-AIC). Refer to the AIC+ Advanced Interface Converter User Manual, publication 1761-UM004.

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184 Setting Up the DH-485 Network

DH-485 Network Protocol

A node holding the token can send any valid packet onto the network. Each node is allowed only one transmission (plus two retries) each time it receives the token. After a node sends one message packet, it attempts to give the token to its successor by sending a token pass packet to its successor.

DH-485 Token Rotation

a chance to initiate message transfers. To determine which initiator has the right to transmit, a token passing algorithm is used.

DH-485 Network

Initialization

If no network activity occurs, the initiator sends the token pass packet again. After two retries (a total of three tries) the initiator will attempt to find a new successor.

IMPORTANT

The maximum address that the initiator will search for before wrapping to zero is the value in the configurable parameter maximum node address. The default value for this parameter is

31 for all initiators and responders.

The allowable range of the node address of a initiator is 0...31. The allowable address range for all responders is 1...31. There must be at least one initiator on the network.

Network initialization begins when a period of inactivity exceeding the time of a link dead timeout is detected by a initiator on the network. When the time for a link dead timeout is exceeded, usually the initiator with the lowest address claims the token. When a initiator has the token it will begin to build the network. The network requires at least one initiator to initialize it.

Building a network begins when the initiator that claimed the token tries to pass the token to the successor node. If the attempt to pass the token fails, or if the initiator has no established successor (for example, when it turns on), it begins a linear search for a successor starting with the node above it in the addressing.

When the initiator finds another active initiator, it passes the token to that node, which repeats the process until the token is passed all the way around the network to the first node. At this point, the network is in a state of normal operation.

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Setting Up the DH-485 Network 185

Devices that Use the

DH-485 Network

Cat. No.

1746-BAS(-T)

1747-KE

1747-UIC

ControlLogix

Gateway

1784-PCMK

1784-PKTX(D)

The following SLC 500 devices support the DH-485 network.

• SLC 500 fixed I/O controller (responder)

• SLC 5/01 modular I/O controller (responder)

• SLC 5/02 modular I/O controller (initiator/responder)

• SLC 5/03 modular I/O controller (initiator/responder)

• SLC 5/04 modular I/O controller (initiator/responder)

• SLC 5/05 modular I/O controller (initiator/responder)

• Personal computer running your programming software

(initiator)

• DTAM (initiator/responder)

Other devices that use the DH-485 network include those in the table below.

Description

BASIC module

DH-485/DF1 interface module

USB to DH-485 interface converter

DH+/DH485 gateway

PCMCIA interface card personal computer

DH-485 interface card

Devices Available For Use on the DH-485 Network

Installation

Requirement

Function

SLC chassis

Provides an interface for SLC 500 devices to third party devices. Program in BASIC to interface the 3 channels (2 RS232 and 1 DH485) to printers, modems, or the DH-485 network for data collection.

Provides a non-isolated DH-485 interface for

SLC 500 devices to host computers over RS-232 using full- or DF1 half-duplex protocol. Enables remote programming using your programming software to an SLC 500 processor or the DH-485 network through modems. Ideal for low cost

RTU/SCADA applications.

Standalone

Provides connection to personal computer’s USB port and features an RS-232 and an RS-485 port for connection to SLC 500 controllers.

Provides communication between stations on the

PLC-5 (DH+) and SLC 500 (DH-485) networks.

Enables communication and data transfer from PLC to SLC 500 on DH-485 network. Also enables programming software programming or data acquisition across DH+ to DH-485.

Provides DH485 or DH+ connection.

PCMCIA slot in computer

PCI bus Provides DH-485 or DH+ connection

Publication

Number

1746-UM004

1746-RM001

1746-IN009

1747-IN006

1747-IN063

1756-UM513

1784-UM519

1784-UM527

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186 Setting Up the DH-485 Network

1747-AIC Isolated Link

Coupler for DH-485

The isolated link coupler, catalog number 1747-AIC, is used to connect SLC 500 family devices to the DH-485 network. The coupler provides a 6-position removable terminal block for connection to the

DH-485 communication cable.

Network connections for SLC 500 processors are provided by the

1747-C11 cable, supplied with the link coupler. Network connections for peripheral devices, such as the personal interface converter, catalog number1747-PIC, or Data Table Access Module, catalog number, 1747-DTAM-E are provided by the 1747-C10 cable supplied with each of those devices. If you need to connect a peripheral device that is between 1.8 m (6 ft) and 6.1 m (20 ft) away, use the 1747-C20 cable.

To protect connected devices, the coupler provides 1500V dc isolation between the communication cable and the attached SLC 500 controller and peripheral devices (PIC or DTAM).

The isolated link coupler can also be used to provide connectivity between a peripheral device (programming software and PIC or

DTAM) for distances greater than 1.8 m (6 ft) up to a maximum of

1219 m (4000 ft). Below is an example of a remote connection between a computer running your programming software and an

SLC 500 processor.

Remote Connection

Programming

Software

1747-PIC Interface

PIC

1747-C10 Cable

1747-AIC Interface

>1.8m (6 ft)

1747-AIC Interface

+24V dc

1747-C20 Cable

1747-C11 Cable

Data Table

Access Module

1747-DTAM-E

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Setting Up the DH-485 Network 187

1747-UIC USB to DH-485

Interface Converter

The 1747-UIC interface lets you connect DH-485 devices directly to a computer’s USB port. It features an RS-232 port for connection to

SLC 5/03 and later processors, MicroLogix processor, PanelView 300 and later terminals, 1761-NET-AIC+ interface, and Logix controllers, as well as an RS-485 port for connection to SLC 5/03 and lower processors, PanelView 300 and later terminals, and 1747-AIC interface.

The 1747-UIC interface can communicate with devices on the DH-485 network at 19.2 Kbaud.

Connecting to the RS-232 Port

PanelView 300 Operator

Interface and later

SLC 5/03, SLC 5/04, SLC 5/05

Processor (channel 0)

Personal

Computer with

USB Port

AIC+ Interface

USB (DF1)

USB

DH485

CAT

1747-UIC

USB to DH485

INTERFACE CONVERTER

SER FRN

X.X

LISTED IND. CONT. EQ. FOR HAZ.

OPERATING TEMP CODE TAG LOC. A196,

CLASS 1 GROUPS A, B, C, AND D, DIV. 2

RS485 (DH485)

N223

RS232 (DH485)

Mfg

XXXX

1747-UIC

Interface CompactLogix Controller

ControlLogix Controller

FlexLogix Controller

MicroLogix Controller

Connect the following DH-485 equipment to the RS-232 port

SLC 5/03, SLC 5/04, and SLC 5/05 processor

(channel 0)

1761-NET-AIC (AIC+)

Advanced Interface Converter

PanelView 300 and later operator interface with

RS-232 (DH-485) port

MicroLogix controller

PanelView 300 Micro (DH-485) operator interface

CompactLogix controller

FlexLogix controller

ControlLogix controller

Using cable

1747-CP3, 1756-CP3

1747-CP3, 1756-CP3 (Port 1, 9-pin D)

1761-CBL-PM02 (Port 2, 8-pin DIN)

2711-NC13

1761-CBL-PM02

1747-CP3, 1756-CP3

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188 Setting Up the DH-485 Network

Connecting to the RS-485 Port

SLC 500 Fixed Controller

PanelView 300 and later

Operator Interface

Personal Computer with

USB Port

SLC 5/01, SLC 5/02, SLC 5/03 Processor

(channel 1)

CPU

Power

DH-485

Peripheral

1747-AIC

Interface

USB (DF1)

USB

USB to DH485

DH485

CAT

INTERFACE CONVERTER

SER

1747-UIC

FRN

X.X

LISTED IND. CONT. EQ. FOR HAZ.

OPERATING TEMP CODE TAG LOC. A196,

CLASS 1 GROUPS A, B, C, AND D, DIV. 2

RS485 (DH485)

N223

RS232 (DH485)

1747-UIC

Interface

Connect the following DH-485 equipment to the RS-485 port

SLC 500 fixed controller

SLC 5/01, SLC 5/02, and SLC 5/03 (channel 1) processor

1747-AIC Isolated Link Coupler

PanelView 300 and later with DH-485 port operator interface

Using cable

1747-C13

1747-C10

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Setting Up the DH-485 Network 189

Example System

Configuration

Personal Computer

Below is an example of a DH-485 network.

Personal Computer

1747-PIC or

1747-UIC

Interface

Converter

SLC 5/03, 5/04, or 5/05

Modular Controller

1747-AIC

Isolated

Link

Coupler

1761-NET-AIC

Advanced Interface

Converter

1747-AIC

Isolated Link

Coupler

Data Table

Access

Module

DH-485 Network maximum length 1219 m (4000 ft)

1747-AIC

Isolated

Link

Coupler

SLC 500 20-Point

Fixed Controller

SLC 5/01 Modular Controller

SLC 500 20-Point Fixed

Controller with 2-Slot

Expansion Chassis

1747-AIC

Isolated

Link

Coupler

SLC 500 Fixed Controller

SLC 5/02 Modular Controller

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190 Setting Up the DH-485 Network

1747-AIC

Isolated Link

Coupler

DH-485

Configuring the SLC 5/03, SLC 5/04, and SLC 5/05 Channel 0 for

DH485 Protocol

The RS-232 port (channel 0) of the SLC 5/03, SLC 5/04, and SLC 5/05 processor can be configured for DH485 protocol. Refer to your programming software user manual for software configuration information.

You can connect channel 0 of the SLC 5/03, SLC 5/04, and SLC 5/05 processors to a DH485 network using the 1747-CP3 cable and a

1761-NET-AIC Advanced Interface Converter (AIC+). In this case, the

AIC+ must be powered with 24V dc. The 1746-P1, 1746-P2, 1746-P4,

1746-P5, and 1746-P6 power supplies provide 24V dc user power which may be used to power the AIC+.

SLC 5/01 Processor

24V dc Power

Supply

SLC 5/03, 5/04, or 5/05

Modular Controller

Personal Computer

APS

1747-C11 Cable

DH-485 Network

1761-NET-AIC Interface

1747-CP3 or

1761-CBL-PM02 Cable

RS-232 Network

24V dc User Power

Connection

1761-NET-AIC Interface

1747-CP3 or

1761-CBL-PM02 Cable

24V dc User Power Connection

Publication 1747-UM011F-EN-P - May 2007

Important Planning

Considerations

Setting Up the DH-485 Network 191

Carefully plan your network configuration before installing any hardware. Listed below are some of the factors that can affect system performance:

• Amount of electrical noise, temperature, and humidity in the network environment

• Number of devices on the network

• Connection and grounding quality in installation

• Amount of communication traffic on the network

• Type of process being controlled

• Network configuration

The major hardware and software issues you need to resolve before installing a network are discussed in the following sections.

Hardware Considerations

You need to decide the length of the communication cable, where you will route it, and how to protect it from the environment where it will be installed.

When the communication cable is installed, you need to know how many devices are to be connected during installation and how many devices will be added in the future. The following sections will help you understand and plan the network.

Number of Devices and Length of Communication Cable

You must install a 1747-AIC link coupler for each node on the network. If you plan to add nodes later, provide additional link couplers during the initial installation to avoid recabling after the network is in operation.

The maximum length of the communication cable is 1219 m (4000 ft).

This is the total cable distance from the first node to the last node on the network.

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192 Setting Up the DH-485 Network

Planning Cable Routes

Follow these guidelines to help protect the communication cable from electrical interference.

• Keep the communication cable at least 1.52 m (5 ft) from any electric motors, transformers, rectifiers, generators, arc welders, induction furnaces, or sources of microwave radiation.

• If you must run the cable across power feed lines, run the cable at right angles to the lines.

• If you do not run the cable through a contiguous metallic wireway or conduit, keep the communication cable at least

0.15 m (6 in.) from ac power lines of less than 20 A, 0.30 m (1 ft) from lines greater than 20 A, but only up to 100 k VA, and

0.60 m (2 ft) from lines of 100 k VA or more.

• If you run the cable through a contiguous metallic wireway or conduit, keep the communication cable at least 0.08 m (3 in.) from ac power lines of less than 20 A, 0.15 m (6 in.) from lines greater than 20 A, but only up to 100 k VA, and 0.30 m (1 ft) from lines of 100 k VA or more.

Running the communication cable through conduit provides extra protection from physical damage and electrical interference. If you route the cable through conduit, follow these additional recommendations:

– Use ferromagnetic conduit near critical sources of electrical interference. You can use aluminum conduit in non-critical areas.

– Use plastic connectors to couple between aluminum and ferromagnetic conduit. Make an electrical connection around the plastic connector (use pipe clamps and the heavy gauge wire or wire braid) to hold both sections at the same potential.

– Ground the entire length of conduit by attaching it to the building earth ground.

– Do not let the conduit touch the plug on the cable.

– Arrange the cables loosely within the conduit. The conduit should contain only serial communication cables.

– Install the conduit so that it meets all applicable codes and environmental specifications.

For more information on planning cable routes, see Industrial

Automation Wiring and Grounding Guidelines, publication 1770-4.1.

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Setting Up the DH-485 Network 193

Software Considerations

Software considerations include the configuration of the network and the parameters that can be set to the specific requirements of the network. The following are major configuration factors that have a significant effect on network performance.

• Number of nodes on the network

• Addresses of those nodes

• Communication rate

• Maximum node address selection

• SLC 5/03, SLC 5/04, and SLC 5/05 processors only - token hold factor

• Maximum number of communicating devices

The following sections explain network considerations and describe ways to select parameters for optimum network performance (speed).

Number of Nodes

The number of nodes on the network directly affects the data transfer time between nodes. Unnecessary nodes (such as a second programming terminal that is not being used) slow the data transfer rate. The maximum number of nodes on the network is 32.

Setting Node Addresses

The best network performance occurs when node addresses start at 0 and are assigned in sequential order. SLC 500 processors default to node address 1. The node address is stored in the processor status file

(S:15L). Processors cannot be node 0. Also, initiators such as personal computers should be assigned the lowest numbered addresses to minimize the time required to initialize the network.

Setting Processor Communication Rate

The best network performance occurs at the highest communication rate. All devices must be at the same communication rate. The communication rate is stored in the processor status file (S:15H).

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194 Setting Up the DH-485 Network

Maximum Node Address Setting

The maximum node address parameter should be set as low as possible. This minimizes the amount of time used in soliciting successors when initializing the network. If all nodes are addressed in sequence from 0, and the maximum node address is equal to the address of the highest addressed node, the token rotation will improve by the amount of time required to transmit a solicit successor packet plus the slot timeout value.

Note that this does not allow any node to be added to the network without affecting the response time. On the other hand, since the time required to hold an open station address is greater than the time required to pass a token, it can be useful to leave a temporary device

(such as a personal computer) connected if there is only one such device. (A solicit successor packet requires the same transmission time as the token pass, but there is an added slot timeout period.)

See your programming software user manual for the procedures to set node addresses, processor communication rate, and maximum node addresses.

IMPORTANT

The SLC 500 series A (only) processors set the maximum node address to 31 when power is cycled increasing initialization and response time of the network.

Maximum Number of Communicating Devices

SLC 500 fixed and SLC 5/01 processors can be selected by two initiators maximum at the same time. Using more than two initiators to select the same SLC 500 fixed and SLC 5/01 processors at the same time can cause communication timeouts.

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Installing the DH-485

Network

Setting Up the DH-485 Network 195

To install a DH-485 network, you will need tools to strip the shielded cable and to attach the cable and terminators to the Isolated Link

Coupler.

Install the DH-485 network using the following tools (or equivalent).

Description Part Number Manufacturer

Shielded twisted pair cable Belden #3106A or #9842 Belden

Stripping tool 45-164 Ideal Industries

1/8 in. slotted screwdriver Not applicable Not applicable

DH-485 Communication Cable and Isolated Link Coupler

The link coupler provides a connection for each node. The isolated link coupler electrically isolates the DH-485 communication interface from the processor and peripheral connections. Electrical-optical isolation is provided to 1500V.

The suggested DH-485 communication cable is Belden #3106A or

#9842 cable. The cable is jacketed and shielded with two twisted wire pairs and a drain wire.

One pair provides a balanced signal line, and one wire of the other pair is used for a common reference line between all nodes on the network. The shield reduces the effect of electrostatic noise from the industrial environment on the network communication.

Installing the DH-485 Communication Cable

The communication cable consists of a number of cable segments daisy-chained together. The total length of the cable segments cannot exceed 1219 m (4000 ft).

When cutting cable segments, make them long enough to route them from one link coupler to the next with sufficient slack to prevent

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196 Setting Up the DH-485 Network

Link Coupler

1747-AIC strain on the connector. Allow enough extra cable to prevent chafing and kinking in the cable.

Belden #3106A or #9842 Cable Belden #3106A or

#9842 Cable

Belden #3106A or

#9842 Cable

Link Coupler

1747-AIC

Link Coupler

1747-AIC

DH-485

Peripheral

Connector

CPU

Power

DH-485

Peripheral

Connector

CPU

Power

DH-485

Peripheral

Connector

CPU

Power

IMPORTANT

A daisy-chained network is recommended as shown above. We do not recommend the following:

Belden #3106A or #9842

Cable

Belden #3106A or #9842 Cable Belden #3106A or #9842 Cable

Connector Connector

Incorrect

Connector

Connecting the Communication Cable to the Isolated Link Coupler

Attach the terminal block of the link coupler to the Belden #3106A or

#9842 cable as shown below. Additional terminal blocks are available

for replacement, see chapter 11.

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Setting Up the DH-485 Network 197

Single Cable Connection

Belden #3106A or #9842

Shrink Tubing

Recommended

Orange with White Stripes

White with Orange Stripes

Blue (#3106A) or Blue with

White Stripes (#9842)

Drain Wire

Multiple Cable Connection

to Successive Device to Previous Device

6 Termination

5 A

4 B

3 Common

2 Shield

1 Chassis

Ground

Wire/Terminal Connections for DH-485 Connectors for Belden #3106A

For this wire/pair

Shield/drain

Blue

White/drain

Connect this wire

Non-jacketed

Blue

White with orange stripe

Orange with white stripe

To this terminal

Terminal 2 - Shield

Terminal 3 - (Common)

Terminal 4 - (Data B)

Terminal 5 - (Data A)

Wire/Terminal connections for DH-485 connectors for Belden #9842.

For this wire/pair

Shield/drain

Blue/white

White/orange

Connect this wire

Non-jacketed

White with blue stripe

Blue with white stripe

White with orange stripe

Orange with white stripe

To this terminal

Terminal 2 - Shield

Cut back - no connection

(1)

Terminal 3 - (Common)

Terminal 4 - (Data B)

Terminal 5 - (Data A)

(1)

To prevent confusion when installing the communication cable, cut back the white with blue stripe wire immediately after the insulation jacket is removed. This wire is not used by DH-485.

IMPORTANT

In 1747-AIC interface series A, terminal 5 was called DATA B and terminal 4 was called DATA A. In this case, use terminal numbers only and ignore signal names DATA B and DATA A. The internal circuitry of the series A is the same as series B.

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198 Setting Up the DH-485 Network

Jumper

Grounding and Terminating the DH-485 Network

Only one of the link couplers at the end of the link must have

Terminals 1 and 2 of the network connector jumpered together. This provides an earth ground connection for the shield of the communication cable.

Link couplers at both ends of the network must have terminals 5 and

6 of the link connectors jumpered together. This connects the termination impedance (of 120

Ω) that is built into each link coupler as required by the DH-485 specification. See the figure below for the proper jumpering.

End-of-line Termination

Jumper

Belden #9842 Cable

1219 m (4000 ft) maximum length

Jumper

Powering the Link Coupler

In normal operation with the programmable controller connected to the link coupler, the processor powers both the link coupler and peripheral device (DTAM, PIC) if connected through the 1747-C11 cable.

If you do not connect the processor to the link coupler, then use a

24V dc power supply to power the link coupler and peripheral device. The 1747-AIC interface requires 85 mA at 24V dc. With a peripheral device connected, the total current required is 190 mA at

24V dc.

If both the processor and external power are connected to the link coupler, only the external source is used.

IMPORTANT

Always connect the CHS GND (chassis ground) terminal to the nearest earth ground. This connection must be made whether or not an external 24V dc supply is used.

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Setting Up the DH-485 Network 199

Below are three options for externally powering the 1747-AIC interface.

• If the link coupler is to be installed in an office environment, you can use the 1747-NP1 wall mount power supply or

1747-NP2 global desktop power supply. The link coupler would be powered through either the 1747-C10 cable or by hardwiring from the supply to the screw terminals on the link coupler.

• If you use any of the following chassis power supplies (1746-P1,

1746-P2, 1746-P4, 1746-P5, and 1746-P6), you can use the 24V dc user power supply (200 mA maximum) built into the power supply. The link coupler would be powered through a hard-wired connection from the screw terminals on the power supply to the screw terminals on the bottom of the link coupler.

• You can use an external dc power supply with the following specifications:

– operating voltage: 24V dc + 25%

– output current: 190 mA

– rated NEC

The link coupler would be powered through a hard-wired connection from the external supply to the screw terminals on the bottom of the link coupler.

ATTENTION

If you use an external power supply, it must be 24V dc.

Permanent damage will result if miswired with wrong power source.

The figure below shows the external wiring connections and specifications of the link coupler.

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200 Setting Up the DH-485 Network

Link Coupler

Left Side View

SLC 500

DH-485 LINK COUPLER

CA T SER

LISTED IND. CONT EQ.

FOR HAZ. LOC. A196

OPERA TING

TEMPERA TURE

CODE T3C

EXTERNAL POWER REQUIREMENTS

24 VDC ± 25% AT 190 mA

N.E.C. CLASS 2

6 TERMINA TION

5 A

4 B

3 COMMON

2 SHIELD

1 CHASSIS GROUND

CAUTION EXTERNAL POWER, IF USED, MUST BE 24VDC

PERMANENT DAMAGE T O CIRCUITRY WILL RESULT

IF MISWIRED WITH THE WRONG POWER SOURCE.

FAC 1P MADE IN U.S.A.

CHS

GND

NEUT 24V dc

Bottom View

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You can connect an unpowered link coupler to the DH-485 network without disrupting network activity. In addition, if an SLC 500 controller powers a link coupler that is connected to the DH-485 network, network activity will not be disrupted should the SLC 500 controller be removed from the link coupler.

Setting Up the DH-485 Network 201

Installing and Attaching the Link Couplers

• When installing the link coupler in an enclosure, use care so that the cable connecting the SLC 500 controller to the link coupler does not hit the enclosure door.

• Carefully plug the terminal block into the DH-485 port on the link coupler you are putting on the network. Allow enough cable slack to prevent stress on the plug.

• Provide strain relief for the cable after it is wired to the terminal block. This guards against breakage of the Belden cable wires.

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202 Setting Up the DH-485 Network

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Appendix

RS-232 Communication Interface

This appendix provides an overview of the RS-232 communication interface and explains how the SLC 5/03, SLC 5/04, and SLC 5/05 processors support it. This appendix also provides information on:

• RS-232 and SCADA applications.

• RS-232 communication interface overview.

• SLC 5/03, SLC 5/04, and SLC 5/05 processors and RS-232 communication.

• SLC 500 devices that support RS-232 communication.

• DF1 protocol and the SLC 5/03, SLC 5/04, and SLC 5/05 processors.

• ASCII communication.

• DF1 communication protocol modems overview.

• wiring connectors for RS-232 communication.

• applications for the RS-232 communication interface.

For online configuration procedures of the SLC 5/03, SLC 5/04, and

SLC 5/05 processors for DF1 protocol, see your programming software user manual.

RS-232 and SCADA

Applications

RS-232 is a communication interface included under SCADA

(Supervisory Control and Data Acquisition) applications. SCADA is a term that refers to control applications that require communication over long distances. For more information about the use of

Allen-Bradley equipment in SCADA applications, refer to the SCADA

System Applications Guide, publication AG-UM008.

RS-232 Communication

Interface Overview

203

RS-232 is an Electronics Industries Association (EIA) standard that specifies the electrical, mechanical, and functional characteristics for serial binary communication.

One of the benefits of RS-232 communication is that it lets you integrate telephone and radio modems into your control system. The distance over which you are able to communicate with certain system devices is virtually limitless.

The RS-232 channel on the SLC 5/03, SLC 5/04, and SLC 5/05 processors supports various protocols:

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204 RS-232 Communication Interface

• Full-duplex DF1 (default)

• Half-duplex DF1 (SCADA)

• DH-485

• ASCII communication

• DF1 radio modem

The SLC and PLC products detailed in this appendix that communicate over the RS-232 communication interface also use the DF1 serial communication protocol. DF1 protocol delimits messages, controls message flow, detects and signals errors, and retries after errors are detected.

SLC 5/03, SLC 5/04, and SLC

5/05 processors and RS-232

Communication

The SLC 5/03, SLC 5/04, and SLC 5/05 processors can communicate by means of the RS-232 communication port, channel 0. Channel 0 supports DF1 full-duplex protocol, DF1 half-duplex master and slave protocol, DH485 protocol, ASCII communication, and DF1 radio modem protocol. Refer to your programming software user manual for information on configuring the RS-232 communication port, channel 0.

The details of the DF1 protocols can be found in the DF1 Protocol and

Command Set Reference Manual, Publication Number 1770-6.5.16.

Channel 0 provides a minimum of 500V dc isolation between the I/O signals and the logic ground of the SLC 5/03, SLC 5/04, and SLC 5/05 processors. The channel is a 9-pin D-shell. The table below provides a description of each of the pins.

Pin

Pin Name

DCD (Data Carrier Detect)

RXD (Receive Data)

TXD (Transmit Data)

DTR (Data Terminal Ready)

COM (Common Return [Signal Ground])

DSR (Data Set Ready)

RTS (Request to Send)

CTS (Clear to Send)

NC (No Connection)

The D-shell is the bottom port on the SLC 5/03, SLC 5/04, and

SLC 5/05 processors.

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SLC 500 Devices that

Support RS-232

Communication

RS-232 Communication Interface 205

The SLC 500 product line has two other modules, aside from the

SLC 5/03, SLC 5/04, and SLC 5/05 processors, that support the RS-232 communication interface. They are the 1746-BAS BASIC module and the 1747-KE DH-485/RS-232C interface. Both of these modules can be used with either the SLC 5/01 or SLC 5/02 processor.

1747-KE Module

The 1747-KE module is a communication interface module that acts as a bridge between DH-485 networks and devices requiring DF1 protocol. You can configure the DF1 port on the 1747-KE module for

RS-232/423, RS-422, or RS-485 devices. Residing in an SLC 500 chassis, the 1747-KE module is ideally used as an interface module, linking remote DH-485 networks via a modem to a central host.

For more information on the 1747-KE module, see the DH-485/RS-232

Interface Module User Manual, publication 1747-IN006.

1746-BAS and 1746-BAS-T Modules

The 1746-BAS and 1746-BAS-T modules, which are programmed using the BASIC language, have two configurable serial ports for interfacing to computers, modems, serial printers, and other RS-232 compatible devices. You can also use them for off-loading complex math routines from an SLC 500 processor, thereby conserving ladder logic memory.

For more information on the 1746-BAS module, see the SLC 500

BASIC and BASIC-T Module User Manual, publication 1746-UM004.

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206 RS-232 Communication Interface

DF1 Protocol and the SLC

5/03, SLC 5/04, and SLC 5/05

Processors

DF1 protocol combines data transparency (ANSI - American National

Standards Institute - specification subcategory D1) and 2-way simultaneous transmission with embedded responses (F1). It is also a peer-to-peer, link-layer protocol. This means that system devices have equal access to messages being sent over the RS-232 communication interface.

DF1 protocol provides two modes of communication: full-duplex and half-duplex.

DF1 Full-duplex Protocol

DF1 full-duplex protocol (also referred to as DF1 point-to-point protocol) lets you use RS-232 point-to-point communication in applications that require it. This type of protocol supports simultaneous transmissions between two devices in both directions.

You can use channel 0 as a programming port, or as a peer-to-peer port using the MSG instruction.

In full-duplex mode, the SLC 5/03, SLC 5/04, and SLC 5/05 processors can send and receive messages. When the SLC 5/03, SLC 5/04, and

SLC 5/05 processors receive messages, they act as an end device, or final destination for the data packets

(1)

. The processor ignores the destination and source addresses received in the data packets.

However, the processor swaps these addresses in the reply that it transmits in response to any command data packet that it has received.

By setting a parameter with your programming software, you can also make the processor verify that the host computer can receive embedded responses. To do this, the processor waits to receive an embedded response from the host computer, before sending one of its own. A host computer that can send embedded responses should also be able to receive them.

If you use modems with DF1 full-duplex protocol, make sure that they are capable of simultaneous bidirectional communication. Typically, dial-up modems designed to be connected to standard telephone lines can support full-duplex.

(1)

The exceptions to this are SLC 5/04 and SLC 5/05 processors that have the DH+ to DF1 or Ethernet to DF1 full-duplex passthru bit enabled. In the case of the SLC 5/04, the processor checks the destination address in the packet and if it does not match the configured DH+ address of the processor, the packet is forwarded onto the DH+ network to the destination address DH+ node. In the case of the SLC 5/05, the processor checks the destination address in the packet. If the routing table exists and an IP address is in the routing table for that

DF1 address, the packet is forwarded out to the Ethernet network to that IP address.

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Full-duplex (Point-to-Point)

Modem

SLC 5/03

Processor

(1747-L532)

1747-CP3 Cable

RS-232 Communication Interface 207

Modem

SLC 5/03

Processor

(1747-L532)

DF1 Half-duplex Protocol

DF1 half-duplex protocol provides a multi-drop single master/multiple slave network. In contrast to the DF1 full-duplex protocol, communication takes place in one direction at a time. You can use channel 0 as a programming port, or as a peer-to-peer port using the

MSG instruction.

In half-duplex mode, the SLC 5/03, SLC 5/04, and SLC 5/05 processors can be either master or slave devices. As a master device, the processor polls each slave on the network on a regular and sequential basis. The master also supports routing of data packets from one slave to another, or slave-to-slave communication. As a slave device, the processor can send data packets when polled by the master device, which initiates all communication with slave devices.

If the master device has no data to send, it can still receive data from the slave device. To do this, the master sends out a poll packet addressed to the slave. If the slave has data to send, it does so in response to the poll packet. Otherwise, the slave sends a simple two-byte response, so that the master knows that it is active.

Several Allen-Bradley products support half-duplex master protocol.

They include the Enhanced PLC-5 processors, and SLC 5/03, SLC 5/04, and SLC 5/05 processors. RSLinx (2.0 or later) software also supports half-duplex master protocol.

DF1 Half-duplex supports up to 255 slave devices (addresses 0...254) with address 255 reserved for master broadcasts. The SLC 5/03,

SLC 5/04, and SLC 5/05 processor support broadcast reception. SLC

5/03, SLC 5/04, and SLC 5/05 processors with operating system FRN

C/6 can also initiate broadcast write commands via the MSG

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208 RS-232 Communication Interface

Modem instruction for all channel 0 system mode drivers and for channel 1

(DH-485) on the SLC 5/03 processor.

TIP

Broadcast is not supported for read commands or any remote messages. Broadcast is also not supported by the SLC 5/04 channel 1 DH+ network or the SLC 5/05 channel 1 Ethernet network.

Either half-duplex or full-duplex modem types can be used for the master, but half-duplex modems must be used for the slaves

(assuming there is more than one on a multi-drop network).

Personal Computer

Running RSLinx with DF1

Half-duplex Protocol

(master)

RS-232 (DF1 protocol)

Modem

Modem Modem Modem

Modular Controller with SLC

5/02 Processor and 1747-KE

Interface Module (slave)

Modular Controller with

SLC 5/03 Processor (slave)

Modular Controller with SLC

5/01 Processor and 1747-KE

Interface Module (slave)

Fixed Controller with 1747-KE

Interface Module (slave)

Modem

RS-232 (DF1 protocol)

Modem

Modular Controller with

SLC 5/03 Processor

(master)

Modem

Modem Modem

Modular Controller with SLC

5/02 Processor and 1747-KE

Interface Module (slave)

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Modular Controller with

SLC 5/03 Processor (slave)

Modular Controller with SLC

5/01 Processor and 1747-KE

Interface Module (slave)

Fixed Controller with 1747-KE

Interface Module (slave)

RS-232 Communication Interface 209

DF1 Radio Modem Channel 0 Driver

Series C FRN 6 (FRN C/6) and later versions of operating systems

OS302 (SLC 5/03 processor), OS401 (SLC 5/04 processor) and OS501

(SLC 5/05 processor) include a channel 0 system mode driver called

DF1 radio modem. This driver implements a protocol, optimized for use with radio modem networks, that is a hybrid between DF1 full-duplex protocol and DF1 half-duplex protocol, and therefore is not compatible with either of these protocols.

IMPORTANT

The DF1 radio modem driver should only be used among devices that support and are configured for the DF1 radio modem protocol. Only SLC 5/03, SLC 5/04 and SLC 5/05 processors with operating systems FRN C/6 support DF1 radio modem protocol.

IMPORTANT

There are some radio modem network configurations that will

not work with the DF1 radio modem driver. (See DF1 Radio

Modem System Limitations on page 211.) In these

configurations, continue to use DF1 half-duplex protocol.

Like DF1 full-duplex protocol, DF1 radio modem allows any node to initiate to any other node at any time (if the radio modem network supports full-duplex data port buffering and radio transmission collision avoidance). Like DF1 half-duplex protocol, a node ignores any packets received that have a destination address other than its own, with the exception of broadcast packets and passthru packets.

Unlike either DF1 full-duplex or DF1 half-duplex protocols, DF1 radio modem protocol does not include ACKs, NAKs, ENQs, or poll packets. Data integrity is ensured by the CRC checksum.

Using the DF1 Radio Modem

The DF1 radio modem driver can be configured as the system mode driver for channel 0 using RSLogix 500 version 5.50 or later software.

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210 RS-232 Communication Interface

Channel O Configuration

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The Baud, Parity, Stop Bits and Error Detection selections are identical to the other DF1 drivers. Valid Node Addresses are 0...254, just like the

DF1 half-duplex drivers.

The primary advantage of using DF1 radio modem protocol for radio modem networks is in transmission efficiency. Each read/write transaction (command and reply) requires only one transmission by the initiator (to send the command) and one transmission by the responder (to return the reply). This minimizes the number of times the radios need to key-up to transmit, which maximizes radio life and minimizes radio power consumption. In contrast, DF1 half-duplex protocol requires five transmissions for the DF1 master to complete a read/write transaction with a DF1 slave - three by the master and two by the slave.

The DF1 radio modem driver can be used in a pseudo master/slave mode with any radio modems, as long as the designated master node is the only node initiating MSG instructions, and as long as only one

MSG instruction is triggered at a time.

For modern serial radio modems that support full-duplex data port buffering and radio transmission collision avoidance, the DF1 radio modem driver can be used to set up a masterless peer-to-peer radio network, where any node can initiate communication to any other node at any time, as long as all of the nodes are within radio range so that they receive each other’s transmissions.

RS-232 Communication Interface 211

DF1 Radio Modem System Limitations

The following questions need to be answered in order to determine if you can implement the new DF1 radio modem driver in your radio modem network.

• Are all of the devices SLC 5/03, 5/04 or 5/05 processors?

If so, then they must all be at operating system FRN C/6 or later in order to be configured with the DF1 radio modem driver using RSLogix 500 version 5.50 or later software. If not, then make sure that all of the nodes can support the DF1 radio modem protocol. Once channel 0 is configured for DF1 radio modem, you will need to use channel 1 to locally monitor and program your SLC processor using RSLogix 500 software.

• Does each node receive the radio transmissions of every other node, being both within radio transmission/reception range and on a common receiving frequency (either via a Simplex radio mode or via a single, common, full-duplex repeater)?

If so, then go to the next question to see if you can use the DF1 radio modem driver to set up a peer-to-peer radio network. If not, then you may still be able to use the DF1 radio modem driver, but only if you limit MSG instruction initiation to the node connected to the master radio modem whose transmissions can be received by every other radio modem in the network.

• Do the radio modems handle full-duplex data port buffering and radio transmission collision avoidance?

If so, and the answer to the previous question is yes as well, then you can take full advantage of the peer-to-peer message initiation capability in every node (for example, the ladder logic in any node can trigger a MSG instruction to any other node at any time). If not, then you may still be able to use the DF1 radio modem driver, but only if you limit MSG instruction initiation to a single master node whose transmission can be received by every other node.

• Can I take advantage of the SLC 5/03, SLC 5/04, and 5/05 channel-to-channel passthru to remotely program the other SLC nodes using RSLinx and RSLogix 500 running on a personal computer connected to a local SLC processor via DH-485, DH+, or Ethernet?

Yes, with certain limitations imposed based on the radio modem network.

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212 RS-232 Communication Interface

ASCII Communication

ASCII protocol lets you connect the SLC 5/03, SLC 5/04, and SLC 5/05 processors to serial printers, personal computers, and other third-party devices. ASCII protocol lets your ladder program manage ASCII data.

Modular Controller with

SLC 5/03 Processor

RS-232 Channel 0

1747-CP3 Cable

DF1 Communication

Protocol Modems Overview

You can connect the SLC 5/03, SLC 5/04, and SLC 5/05 processors to several types of modems. In all cases, the processors act as Data

Terminal Equipment (DTE). DTE send and/or receive data on a network. Modem or line drivers act as Data Communication

Equipment (DCE), which provide the signal conversion and coding required for communication between DTE and data circuits. Other

DCE include phone-line modems and specialized modems, such as radio and satellite-link modems.

In addition to Common Return (COM), Receive Data (RXD), and

Transmit Data (TXD), the following active modem-control lines are provided on the SLC 5/03, SLC 5/04, and SLC 5/05 processors.

RTS (Request to Send) - this output signal indicates to the modem or other DCE that the DTE wants to transmit.

CTS (Clear to Send) - this input signal from the modem indicates the modem is ready to receive the transmission by the DTE for forwarding over a link.

DSR (Data Set Ready) - this input signal indicates the DCE device is ready for operation. Loss of this signal causes a modem-lost condition in the processor.

DTR (Data Terminal Ready) - this output signal from the DTE indicates that it is ready for operation. You can also use this signal with the processor to initiate DTR dialing in dial-up modems that support such a feature.

DCD (Data Carrier Detect) - this is an input signal from the DCE that indicates a carrier signal is being received and that presumably data is to be received for forwarding to the DTE connected.

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Wiring Connectors for

RS-232 Communication

RS-232 Communication Interface 213

To connect Allen-Bradley devices with other devices over RS-232, you must wire the cable connectors so that communication can occur through the cabling, which provide the interface between devices.

Types of RS-232 Connectors

The figures below show male connectors, and their pinout locations, for Allen-Bradley devices.

9-Pin Connector (male) 15-Pin Connector (male) 25-Pin Connector (male)

DTE Pinout

Channel 0 is configured as DTE for all SLC 5/03, SLC 5/04, and

SLC 5/05 processors. The pinouts are the same as the 9-pin personal computer port.

DTE 9 Pinout

Pin Description

DCD Data Carrier Detect

RXD Received Data

TXD Transmitted Data

DTR Data Terminal Ready

COM Common Return (Signal

Ground)

DSR Data Set Ready

RTS Request to Send

CTS Clear to Send

NC No Connection

Input

Output

Input

Signal is Equivalent

DTE 15 Pinout

Equivalent

DTE 25 Pinout

Input

Output

Shared

22 (RI Ring

Indicator)

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214 RS-232 Communication Interface

DCE Pinout

Devices such as a modem are DCE. The pinouts on these terminals are wired to interface with DTE.

Signal is

DCE 9 Pinout

Pin Description

1 DCD Data Carrier Detect

2 RXD Received Data

TXD Transmitted Data

DTR Data Terminal Ready

COM Common Return (Signal Ground)

DSR Data Set Ready

RTS Request to Send

CTS Clear to Send

RI Ring Indicator

Input

Output

Shared

Input

Output

Input

Equivalent DCE 25

Pinout

IMPORTANT

DCE signal names are viewed from a DTE perspective. For example, TXD is a DTE output and also a DCE input.

Pin Assignments for Wiring Connectors

Use the following pin assignments to wire the connectors of

Allen-Bradley control devices with modems and peripheral devices that support RS-232 communication. See the table below to find the wiring diagram that you need.

To connect this device

To this Device Remarks

Personal computer Modem

Peripheral DTE

SLC 5/03, SLC 5/04, and SLC 5/05 processors

Modem

Peripheral DTE

1747-KE module

Hardware handshaking enabled

Hardware handshaking disabled

Hardware handshaking enabled

Hardware handshaking disabled

Personal Computer Using a 1747-CP3 cable

Modem Hardware handshaking enabled

Peripheral DTE

1746-BAS module Modem

Peripheral DTE

Hardware handshaking disabled

Hardware handshaking enabled

Hardware handshaking disabled

216

See this page

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RS-232 Communication Interface 215

To connect this device

2760-RB module

To this Device

PLC-5 (channel 0)

Modem

Peripheral DTE

Modem

Peripheral DTE

Remarks

Hardware handshaking enabled

Hardware handshaking disabled

Hardware handshaking enabled

Hardware handshaking disabled

Personal Computer to a Modem (Hardware Handshaking Enabled)

See this page

219

220

221

25-Pin 9-Pin PC

DTE

(1) Connect to the shield of the cable.

DCD

RXD

TXD

DTR

COM

DSR

RTS

CTS

RXD

TXD

DTR

COM

DSR

RTS

CTS

Modem 9-Pin 25-Pin

GND

(1)

DCD 1 8

DCE

Personal Computer to SLC 5/03, SLC 5/04, or SLC 5/05 Processor, 1770-KF3

Module, or PLC-5 Processor (Hardware Handshaking Disabled)

(1)

(2)

25-Pin 9-Pin

8 1

7 5

6 6

DCD

RXD

TXD

DTR

COM

DSR

Modem 9-Pin 25-Pin

GND

(3)

DCD 1 8

RXD 3 2

2 3 TXD

DTR 4 20

COM 5

DSR 6

(2)

4 7 RTS RTS 7

5 8 CTS CTS 8

22 9 RI

DCE

DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect to the shield of the cable.

(2)

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216 RS-232 Communication Interface

SLC 5/03, SLC 5/04, or SLC 5/05 Processor Connected to a Modem

(Hardware Handshaking Enabled)

9-Pin

SLC

5/03

DCD

RXD

TXD

DTR

COM

DSR

RTS

8 CTS

9 NC

DTE

(1) Connect to the shield of the cable.

Modem 9-Pin 25-Pin

GND

(1)

DCD 1

RXD 2

TXD

DTR

COM 5

DSR

RTS

CTS

22 9

DCE

SLC 5/03, SLC 5/04, or SLC 5/05 Processor to another SLC 5/03, SLC 5/04, or

SLC 5/05 Processor, Personal Computer, 1770-KF3 Module, or PLC-5

Processor (Hardware Handshaking Disabled)

(1)

(2)

9-Pin

SLC

5/03

DCD

Peripheral

Device 9-Pin 25-Pin

GND

(3)

DCD 1 8

2 TXD TXD 3 2

RXD

DTR

RXD

DTR

(2)

COM

DSR

RTS

CTS

COM

DSR

RTS

CTS

DCE

DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect to the shield of the cable.

(2)

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RS-232 Communication Interface 217

SLC 5/03, SLC 5/04, or SLC 5/05 Processor Connected to a Personal

Computer with a 1747-CP3 Cable

9-Pin SLC 5/03

1 DCD

RXD

TXD

DTR

COM

DSR

7 RTS

8 CTS

DTE

DCD

TXD

RXD

DSR

COM

DTR

CTS

RTS

DCE

9-Pin

1747-KE Module to a Modem (Hardware Handshaking Enabled)

9-Pin 1747-KE

1 NC

2 RXD

TXD

DTR

COM

6 DSR

RTS

CTS

DTE

Peripheral

Device 9-Pin 25-Pin

GND

(1)

DSR 6

RXD

TXD

DTR

COM

DCR 1 8

RTS

CTS

22 9

DCE

(1) Connect to the shield of the cable.

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218 RS-232 Communication Interface

1747-KE Module to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor, Personal

Computer, 1770-KF3 Module, or PLC-5 Processor (Hardware Handshaking

Disabled)

(1)

Peripheral

Device 9-Pin 25-Pin

9-Pin 1747-KE

GND

(3)

1 NC DCD 1 8

(2)

RXD

TXD

DTR

COM

DSR

TXD

RXD

DTR

COM

(2)

RTS

CTS

DSR

RTS

CTS

DTE

(2)

DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect to the shield of the cable.

1746-BAS Module to a Modem (Hardware Handshaking Enabled)

9-Pin 1746-BAS

1 NC

RXD

TXD

DTR

COM

6 DSR

7 RTS

8 CTS

9 NC

DTE

(1) Connect to the shield of the cable.

Peripheral

Device 9-Pin 25-Pin

GND

(1) 1

DSR 6 6

RXD 2 3

TXD 3 2

DTR 4 20

COM 5 7

DCD

RTS

CTS

DCE

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RS-232 Communication Interface 219

1746-BAS Module to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor, Personal

Computer, 1770-KF3 Module, or PLC-5 Processor (Hardware Handshaking

Disabled)

(1)

9-Pin 1746-BAS

1 NC

2 RXD

Peripheral

Device 9-Pin 25-Pin

GND

(3)

1 8

TXD 3 2

3 TXD RXD 2

(2)

4 DTR

DTR 4

5 COM

COM

6 DSR

DSR

(2)

7 RTS

RTS 7

8 CTS CTS 8

9 NC

DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect to the shield of the cable.

2760-RB Module to a Modem (Hardware Handshaking Enabled)

(2)

25-Pin 2760-RB

1 GND (1)

Modem

GND

(1)

DCD

9-Pin 25-Pin

1 8

2 TXD

TXD

3 2

3 RXD

RXD

2 3

4 RTS

RTS

7 4

5 CTS

CTS 8 5

6 DSR DSR 6 6

7 COM COM

5 7

20 DTR DTR

4 20

DTE

9 22

DCE

(1) Connect the shield of the cable to the GND pin on one end only. Leave the other end open.

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220 RS-232 Communication Interface

2760-RB Module to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor, Personal

Computer, 1770-KF3 Module, or PLC-5 Processor (Hardware Handshaking

Disabled)

Peripheral

Device

9-Pin 25-Pin

25-Pin 2760-RB

1 GND (3)

2 TXD

GND

(3)

DCD

RXD

3 RXD TXD 2 3

(2) 4 RTS DTR

7 4

CTS COM 8 5

(2) 6

DSR

COM

DSR

RTS

20 DTR CTS 4 20

DTE DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect the shield of the cable to the GND pin on one end only. Leave the other end open.

(2)

PLC-5 Processor (Channel 0) to a Modem (Hardware Handshaking Enabled)

25-Pin PLC-5, CH0

8 DCD

RXD

TXD

DTR

7 COM

DSR

RTS

5 CTS

22 NC

DTE

(1) Connect to the shield of the cable.

Modem

GND

(1)

DCD

RXD

TXD

DTR

COM

DSR

RTS

CTS

DCE

9-Pin 25-Pin

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RS-232 Communication Interface 221

PLC-5 Processor (Channel 0) to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor,

Personal Computer, 1770-KF3 Module, PLC-5 Processor, 1747-KE Module, or

1746-BAS Module (Hardware Handshaking Disabled)

(1)

Peripheral

Device 9-Pin 25-Pin

25-Pin PLC-5, CH0

GND

(3)

(2)

8 DCD DCD 1

RXD TXD 3

2 TXD RXD 2

DTR DTR 4

COM COM

DSR DSR 6

(2)

RTS

CTS

RTS

CTS

22 NC

DTE DTE

(1) You can also use the 1747-CP3 cable.

(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.

(3) Connect to the shield of the cable.

(2)

Applications for the RS-232

Communication Interface

The figures below illustrate different applications for the RS-232 communication interface.

DF1 Full-duplex Peer-to-peer

Modem Modem

SLC 5/03 Modular Controller SLC 5/03 Modular Controller

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222 RS-232 Communication Interface

Half-duplex with Slave-to-slave Routing

IMPORTANT

The 1747-KE module does not support slave-to-slave transfers.

WINtelligent Linx or RSLinx

Running DF1 Half-duplex

Protocol (Master)

Modem

SLC 5/03 Modular Controller SLC 5/03 Modular Controller

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Appendix

Setting Up the DH+ Network

This appendix provides an overview of the Data Highway Plus (DH

+) communication protocol and explains how the SLC 5/04 processors support it. This appendix also provides:

• a DH+ communication protocol overview.

• an SLC 5/04 processor and DH+ communication.

• wiring connectors for DH+ communication for SLC 5/04.

• a typical DH+ network configuration.

Data Highway Plus

Communication Protocol

Overview

Data Highway Plus implements peer-to-peer communication with a token-passing scheme to rotate link mastership among a maximum of

64 nodes. Since this method does not require polling, it helps provide time-efficient reliable data transport. The DH

+ features:

• remote programming of PLC-2, PLC-3, PLC-5 and SLC 500 processors on your network.

• direct connections to PLC-5 processors and industrial programming terminals.

• easy re-configuration and expansion if you want to add more nodes later.

• a communication rate of 57.6 Kbaud, 115.2 Kbaud, or

230.4 Kbaud.

The following table summarizes the type of termination resistor needed to communicate at the specified communication rate with the maximum cable length.

Termination Resistor and Communication Link

Termination Link Resistor

Value

150

Communication Rate

(Kbaud)

57.6

115

230.4

Maximum Cable Length m (ft)

3048 (10,000)

1542 (5000)

762 (2500)

223 Publication 1747-UM011F-EN-P - May 2007

224 Setting Up the DH+ Network

SLC 5/04 Processors and

DH+ Communication

The SLC 5/04 processors let you operate DH

+ communication protocol by means of the DH

+ communication channel 1. The SLC

5/04 processors also support DF1 full-duplex protocol, DF1 half-duplex master and slave protocol, ASCII, or DH-485 via its RS-232 port, channel 0. The 3-pin connector, provided with the SLC 5/04 processors, is for actual DH

+ communication and the 8-pin connector is for monitoring DH

+ communication.

Pin

DH+ Channel 1, 3-Pin

Pin Name

DH + Data Line 1

Shield

DH + Data Line 2

Pin

DH+ Channel 1, 8-Pin

Pin Name

DH + Data Line 2

No Connection

Shield

No Connection

+ Data Line 1

No Connection

Publication 1747-UM011F-EN-P - May 2007

Channel 1 Location

SLC 5/04 CPU

RUN

FLT

BATT

FORCE

DH+

RS232

RUN REM PROG

Setting Up the DH+ Network 225

DH+

Channel 1

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226 Setting Up the DH+ Network

Wiring Connectors for DH+

Communication for SLC 5/04

Processors

To connect Allen-Bradley devices with other devices over DH

+, you must wire the 3-pin cable connectors so that communication can occur through the cabling. Each device requires its own node address.

PROG

RUN

BATT

PROC

FORCE

COMM

SLC 5/04 CPU

RUN

FLT

BATT

RUN

FORCE

DH+

RS232

REM PROG

Clear

Shield

Blue

A B

Terminating

Resistor

Connector

Clear

Shield

Blue

PLC±5/20

PROGRAMMABLE

CONTROLLER

Terminating

Resistor Connector

Clear

Shield

Blue

SLC 5/04 CPU

RUN

FLT

BATT

RUN

FORCE

DH+

RS232

REM PROG

Belden #9463 Cable

Terminate the DH+ link on both ends by connecting a 150

Ω, 1/2 W resistor between terminals 1 and 2 of the 3-pin connector when you are communicating at 57.6 Kbaud with a PLC-5 processor or 115.2

Kbaud with other SLC 5/04 processors. Use an 82

Ω, 1/2 W resistor if you are communicating at 230.4 Kbaud with other SLC 5/04 processors or series E enhanced PLC-5 processor.

Publication 1747-UM011F-EN-P - May 2007

Setting Up the DH+ Network 227

Minimizing Noise

To minimize the affect of noise on the SLC 5/04 processor, ground the cable shields to earth via 0.01

μF capacitors as shown in the DH+ wiring example below. Only directly ground the shield at one point on the network.

PROG

RUN

BATT

PROC

FORCE

COMM

SLC 5/04 CPU

RUN

FLT

BATT

RUN

FORCE

DH+

RS232

REM PROG

Earth Ground

Clear

Shield

Blue

Connector

Shield

(1)

Earth Ground

Terminating

Resistor

0.01

μF

Shield

A B

Connector

Clear

Shield

Blue

PLC±5/20

PROGRAMMABLE

CONTROLLER

Terminating

Resistor

Connector

Clear

Shield

Blue

Shield

0.01

μF

SLC 5/04 CPU

RUN

FLT

BATT

RUN

FORCE

DH+

RS232

REM PROG

Earth Ground

Belden #9463 Cable

(1) To chassis ground directly at one point only in the network.

Belden #9463 Cable

Publication 1747-UM011F-EN-P - May 2007

228 Setting Up the DH+ Network

Typical DH+ Network

Configuration

The following figure illustrates a possible configuration for the

SLC 5/04 processor on a DH

+ network. You can also use an SLC 500,

SLC 5/01, SLC 5/02, SLC 5/03, or SLC 5/05 processor in place of the

SLC 5/04 processor on the DH

+ network if the 1785-KA5 card is used with a PLC-5 processor.

Personal Computer with 1784-KTXD or

1784-PKTX(D) Interface

APS

PLC-5/15 Processor

DH+ Network

PLC-5/15 Processor with a 1785-KA5

Card

SLC 5/04 Modular

Controller

1747-NET-AIC

Interface

Converter

The PLC-5

Processor and

1785-KA5 Card are daisy chained together.

1747-AIC

Converter

1747-AIC

Converter

1747-AIC

Converter

1747-AIC

Converter

Catalog Number

1784-PCMK

1784-PKTX(D)

SLC 5/02 Modular Controller SLC 5/03 Modular Controller

The DH

+ protocol uses factory set timeouts to restart token-passing communication if the token is lost because of a defective node.

Other devices that use the DH+ network include those in the table below.

Description Installation Requirement Function

PCMCIA interface card PCMCIA slot in computer

Personal computer

DH+ interface card

PCI bus

Provides DH+ or DH-485 connection

Publication

Number

1784-UM519

1784-UM527

Publication 1747-UM011F-EN-P - May 2007

Notes:

Setting Up the DH+ Network 229

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230 Setting Up the DH+ Network

Notes:

Publication 1747-UM011F-EN-P - May 2007

Appendix

Power Supply Worksheet

Power Supply Loading

Use the table below to calculate the power supply loading for each chassis in your SLC modular application.

Hardware Component Cat. No.

Processors 1747-L511

1747-L514

1747-L524

1747-L531

1747-L532

1747-L533

1747-L541

1747-L542

1747-L543

1747-L551

1747-L552

1747-L553

Digital Input Modules 1746-IA4

1746-IA8

1746-IA16

1746-IB8

1746-IB16

1746-IB32

(1)

1746-IC16

1746-IG16

1746-IH16

1746-IM4

1746-IM8

1746-IM16

1746-IN16

1746-ITB16

1746-ITV16

1746-IV8

1746-IV16

1746-IV32

(1)

0.050

0.140

0.085

0.035

0.050

0.085

0.050

0.085

0.050

0.085

0.050

1.000

0.035

0.050

0.085

Maximum Current (A) at 5V dc at 24V dc

0.090

0.500

0.175

0.050

231 Publication 1747-UM011F-EN-P - May 2007

232 Power Supply Worksheet

Publication 1747-UM011F-EN-P - May 2007

Hardware Component Cat. No.

Digital Output Modules 1746-OA8

1746-OA16

1746-OAP12

1746-OB6EI

1746-OB8

1746-OB16

1746-OB16E

1746-OB32

(1)

1746-OB32E

1746-OBP8

1746-OBP16

1746-OG16

1746-OV8

1746-OV16

1746-OV32

(1)

Digital Combination

Modules

1746-OVP16

1746-OW4

1746-OW8

1746-OW16

1746-OX8

1746-IO4

1746-IO8

1746-IO12

1746-IO12DC

Analog Input Modules 1746-NI4

1746-NI8

1746-NI16I

1746-NI16V

Analog Output Modules 1746-NO4I

1746-NO4V

1746-NO8I

1746-NO8V

Analog Combination

Modules

1746-FIO4I

1746-FIO4V

1746-NIO4I

1746-NIO4V

0.080

0.025

0.200

0.125

0.055

0.120

0.250

0.045

0.085

0.170

0.085

0.030

0.060

0.090

0.190

0.135

0.250

0.180

0.135

0.270

0.190

Maximum Current (A) at 5V dc at 24V dc

0.185

0.370

0.046

0.135

0.280

0.135

0.190

0.120

0.055

0.060

0.085

0.100

0.075

0.195

0.145

0.250

(2)

(3)

0.045

0.090

0.180

0.090

0.025

0.045

0.070

0.160

(2)

(3)

0.150

0.120

0.145

0.115

Power Supply Worksheet 233

Hardware Component Cat. No.

Specialty Modules 1746-BAS (-T)

1746-BLM

1746-BTM

1746-HSCE

1746-HSCE2

1746-HSRV

1746-HSTP1

1746-INT4

1746-NR4

1746-NR8

1746-NT4

1746-NT8

1746-QS

1746-QV

Communication Modules 1747-ACN15

1747-ACNR15

1747-ASB

1747-BSN

1747-DCM

1747-KE

Peripheral Devices

1747-KFC15

1747-SCNR

1747-SDN

1747-SN

1747-AIC

1747-DTAM

1747-PIC

1747-PSD

1747-UIC

(6)

1761-NET-AIC

(7)

0.640

0.900

0.500

0.600

Maximum Current (A) at 5V dc at 24V dc

0.150

1.000

0.110

0.320

0.250

0.300

0.110

0.050

0.100

0.060

0.120

1.000

0.040

(4)

0.085

0.050

0.055

0.040

0.215

0.900

0.375

0.070

0.200

0.800

0.360

0.150

0.040

(4)

0.085

(5)

(1)

Power supply loading for Series D and later modules.

(2)

J4 jumper set to RACK.

(3)

J4 jumper set to EXT.

(4)

When using the 1746-BAS or 1747-KE modules to supply power to an AIC draws its power through the module. Add 0.085 A

(the current loading for the 1761-AIC interface) to the 1746-BAS or 1747-KE module’s power supply loading value at 24V dc.

(5)

The 24V dc loading values of the 1747-PIC and 1747-DTAM interfaces are included in the 24V dc loading value of the processor.

(6)

USB power consumption is less than 100 mA.

(7)

Current for the 1761-NET-AIC must be supplied from an external 24V dc source. No current is consumed from the controller when an external source is used.

Publication 1747-UM011F-EN-P - May 2007

234 Power Supply Worksheet

Blank Worksheet

Procedure

1. For each slot of the chassis that contains a module, list the slot number, the catalog number of the module, and its 5V and 24V maximum currents. Also include the power consumption of any peripheral devices that may be connected to the processor other than a 1747-DTAM or 1747-PIC interface-the power consumption of these devices is accounted for in the power consumption of the processor.

Chassis Number Maximum Currents Chassis Number Maximum Currents

Slot

Slot Number

Slot

Cat. No.

Slot

Peripheral Device

2.Add the loading currents of all the system devices at 5 and 24V dc to determine the

Total Current.

at 5V dc at 24V dc Slot Number

Slot

Cat. No.

Slot

Peripheral Device

2.Add the loading currents of all the system devices at 5 and 24V dc to determine the

Total Current.

at 5V dc at 24V dc

3.For 1746-P4 power supplies, calculate the total power consumption of all system devices. If you are not using a 1746-P4 power supply, go to step 4.

Current Multiply by = Watts Current Multiply by

= Watts

Total Current at 5V dc

Total Current at 24V dc

User Current at 24V dc

24V

Total Current at 5V dc

Total Current at 24V dc

User Current at 24V dc

24V

Add the Watts values to determine Total Power Add the Watts values to determine Total Power

(cannot exceed 70 Watts) (cannot exceed 70 Watts)

Cat. No.

Internal Current

Capacity

Cat. No.

Internal Current

Capacity

1746-P1

1746-P2

1746-P3

1746-P4 (see step 3)

1746-P5

1746-P6

1746-P7 (See

page 39 for current

capacity.)

12V Input

24V Input

Required Power Supply at 5V dc

2.0A

5.0A

3.6A

10.0A

5.0A

2.0A

3.6A

at 24V dc

0.46A

0.96A

0.87A

2.88A

0.96A

0.46A

0.87A

1746-P1

1746-P2

1746-P3

1746-P4 (see step 3)

1746-P5

1746-P6

1746-P7 (See

page 39 for current

capacity.)

12V Input

24V Input

Required Power Supply at 5V dc at 24V dc

2.0A

0.46A

5.0A

3.6A

10.0A

5.0A

2.0A

3.6A

0.96A

0.87A

2.88A

0.96A

0.46A

0.87A

Publication 1747-UM011F-EN-P - May 2007

Appendix

Control Networks

This appendix provides a brief introduction about control networks.

For more information on using control networks, see the following publications.

Control Network Publication

Remote I/O

Publication

Number

Direct Communication Module User Manual 1747-6.8

DeviceNet

RIO Scanner User Manual

DeviceNet Scanner Configuration Manual

DeviceNet Interface User Manual

1747-UM013

1747-UM655

1761-UM005

ControlNet SLC ControlNet Scanner Reference Manual 1747-RM623

SLC 500 ControlNet RS-232 Interface Module

User Manual

1747-5.34

The Allen-Bradley Remote I/O Network is a master/slave control network that enables chassis of I/O, operator interface terminals, push-button panels, I/O blocks, message displays, and drives to be great distances from the host PLC processor. The SLC 500 fixed,

SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, or SLC 5/05 processors can interface to this network through the 1747-DCM module for distributed control. The DCM lets the SLC 500 processor look like another slave device on the network.

Allen-Bradley Remote I/O

Network

Below is an example of the Allen-Bradley Remote I/O Network.

PLC-5 or SLC 5/02 and later processors with 1747-SN scanner

SLC Fixed

Controller

1747-DCM Module 1747-DCM Module

SLC 5/01 Processor

1747-DCM Module

SLC 5/03 Processor

PanelView Operator Terminal

1771 Remote I/O Network

Publication 1747-IN011F-EN-P - May 2007 235

236 Control Networks

With an SLC 5/02, SLC 5/03, SLC 5/04, or SLC 5/05 processor, a

1747-SN Remote I/O Scanner can be used as the master of a remote

I/O network.

Remote I/O Network

1747-SN Module

1771 Remote I/O Network

Block I/O

1747-ASB Module 1747-ASB Module

PanelView Operator Terminal

Each 1747-SN scanner supports 4 logical racks of 256 I/O each per logical rack. If large amounts of data need to be transferred to a device such as a PanelView operator interface, the 1747-SN series B scanner supports block transfer of up to 64 words of data. Up to 16 devices can be connected to a single remote I/O network. The SLC system supports multiple 1747-SN scanners if more devices are required to be controlled by a single SLC processor.

Remote I/O Passthru

Remote I/O passthru enables communication between a personal computer on the same network as an SLC 5/03, 5/04, or 5/05 processor to devices on the remote I/O network. For example, a personal computer running PanelBuilder32 software and communicating on the DH+ network could upload and download applications from a PanelView operator terminal communicating on the remote I/O network. This feature eliminates the need to physically connect the personal computer to the PanelView operator terminal when you need to change the application. This capability is available on the 1747-SN series B scanner, and the 1747-BSN backup scanner.

Publication 1747-IN011F-EN-P - May 2007

Control Networks 237

Personal Computer running

PanelView Software

Remote I/O Passthru

SLC 5/04 Processor

DH+ Network

TIP

SLC 5/02 Processor

1747-SN, Series B Module

1771 Remote I/O Network

Block I/O

1747-DCM Module

PanelView Operator Terminal

The SLC 5/03 OS302 or later, SLC 5/04 OS401 or later, and SLC

5/05 processor support remote I/O passthru via both their communication ports.

DeviceNet Network

A DeviceNet network connects plant floor devices directly to the control system (for example, SLC 500 controller) reducing the number of I/O interfaces and wiring associated with a typical hard-wired solution. The DeviceNet communication network is a completely open device network and has the support of industry’s leading sensor, actuator, and control manufacturers.

The 1747-SDN DeviceNet Scanner

In a typical configuration, the 1747-SDN DeviceNet Scanner acts as an interface between DeviceNet devices and the SLC 5/02, SLC 5/03,

SLC 5/04, and SLC 5/05 processors. The scanner communicates with

DeviceNet devices over the network to:

• read inputs from a device.

• write outputs to a device.

• download configuration data.

• monitor a device’s operational status.

The scanner communicates with the SLC 500 processors to exchange

I/O data. Information exchanged includes:

• device I/O data.

• status information.

• configuration data.

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238 Control Networks

A single scanner (master) can communicate with up to 63 nodes

(slaves) on DeviceNet. The SLC system supports multiple scanners if more devices are required to be controlled by a single SLC 500 processor.

DeviceNet Network

1747-SDN Scanner

SLC 5/02 or later processor

1770-KFD Interface

RS-232 cable

DeviceNet Network

Personal

Computer with

RSNetworx for

DeviceNet

Software

RediSTATION

Panel

1305 Drive

Flex I/O Controller

DeviceNet

Devices

Publication 1747-IN011F-EN-P - May 2007

The 1761-NET-DNI DeviceNet Interface

The DeviceNet Interface (DNI) is an intelligent DeviceNet-to-DF1 protocol conversion device that let existing DF1 devices communicate on DeviceNet network. The DF1 device is able to exchange I/O data with a master device and is able to initiate and receive DF1 encapsulated DeviceNet messages across a DeviceNet network.

The DNI provides a single DeviceNet connection point and a single

RS-232 connection. The DeviceNet port is isolated from the DNI digital logic and RS-232 port.

The primary functions of the DNI are:

• to collect and receive input data from the DF1 device connected on its RS-232 port and forward that data to a connected master on a DeviceNet network.

• to monitor output data received from the DeviceNet master and write that data to the DF1 device.

• to let DF1 devices send and receive messages across the

DeviceNet network.

The DNI can be used to interconnect:

• MicroLogix controllers.

Control Networks 239

• PLC-5 programmable controllers.

• operator interface devices.

• SLC 5/03, SLC 5/04, and SLC 5/05 processors.

SLC 5/03 or later processor

Personal Computer with

RSLogix500 and/or RSNetWorx

Node 3 for DeviceNet

KFD

1747-SDN Scanner

Master/Slave I/O

Peer-to-Peer Messaging

DeviceNet Network

DNI Module

Node 1

Node 2

MicroLogix Controller

DeviceNet Network Length

The DeviceNet network lengths are listed below.

Network Length

100 m (328.08 ft)

200 m (656.16 ft)

500 m (1640.42 ft)

Communication Rate

500 Kbaud

250 Kbaud

125 Kbaud

Publication 1747-IN011F-EN-P - May 2007

240 Control Networks

ControlNet Network

ControlNet systems are designed to:

• provide high-speed, repeatable, deterministic I/O transmission.

• let control and message information co-exist on the same physical media.

• make sure that I/O data transfers are not affected by programming terminal activity or interscanner message activity on the network.

The 1747-SCNR ControlNet Scanner Module

The 1747-SCNR scanner provides the capability for SLC processors to produce or consume scheduled I/O to and from a ControlNet network. Scheduled messaging lets the SLC processor program control

I/O events in real time over the ControlNet network. The module connects to a ControlNet network via the standard BNC connectors.

The 1747-KFC15 ControlNet Messaging Module

The 1747-KFC15 module provides the capability for SLC 5/03 and later processors to send or receive unscheduled ControlNet messages. With unscheduled messages, the SLC processor program can send peer-to-peer messages or be accessed and edited over the ControlNet network using RSLogix 500 software.

The 1747-KFC15 module connects to the ControlNet network via the standard BNC connectors and links to the SLC processor via a standard RS-232 cable. Other programming interfaces can connect to the ControlNet network through the 1747-KFC15 module’s network access port.

Publication 1747-IN011F-EN-P - May 2007

Appendix

Communicating with Devices on an Ethernet

Network

This appendix:

• describes SLC 5/05 processors and Ethernet communication.

• describes SLC 5/05 performance considerations.

• describes Ethernet network connections and media.

• explains how the SLC 5/05 establishes node connections.

• lists Ethernet configuration parameters and procedures.

• describes configuration for subnet masks and gateways.

SLC 5/05 Processors and

Ethernet Communication

Ethernet is a local area network that provides communication between various devices at 10/100 Mbps. The physical communication media options for the SLC 5/05 are:

• built-in.

– twisted-pair (10/100Base-T)

• with media converters or hubs.

– fiber optic

– broadband

– thick-wire coaxial cable (10Base-5)

– thin-wire coaxial cable (10Base-2)

See the following page for more information on Ethernet physical media.

The SLC 5/05 processor supports Ethernet communication via the

Ethernet communication channel 1 shown in the drawing page 242.

241 Publication 1747-UM011F-EN-P - May 2007

242 Communicating with Devices on an Ethernet Network

Communication Channels

RUN

FLT

BATT

RUN

SLC 5/05 CPU

FORCE

ENET

REM

RS232

PROG

Channel 1

Ethernet

(10Base-T)

Channel 0

RS-232

(DH485, DF1, or ASCII)

SLC 5/05 Performance

Considerations

Actual performance of an SLC 5/05 processor varies according to:

• size of Ethernet messages.

• frequency of Ethernet messages.

• network loading.

• the implementation and performance of your processor application program.

Optimal Performance: RSLinx to SLC 5/05 Processor (2-node Ethernet network)

Operation

Single Typed Read

Single Typed Reads

Words MSG per Second Words per Second

100

256

105

1980

8600

18,176

Publication 1747-UM011F-EN-P - May 2007

Communicating with Devices on an Ethernet Network 243

SLC 5/05 Processor and

Personal Computer

Connections to the Ethernet

Network

The SLC 5/05 Ethernet connector conforms to ISO/IEC 8802-3 STD

802.3 and utilizes 10/100Base-T media. Connections are made directly from the SLC 5/05 to an Ethernet hub. The network setup is simple and cost effective. Typical network topology is pictured below.

Ethernet Network Topology

Ethernet Hub

RJ45 Connectors

(both ends of cable

(10/100Base-T))

To PC Ethernet Card To SLC 5/05 Channel 1

IMPORTANT

The SLC 5/05 processor contains a 10/100Base-T, RJ45 Ethernet connector which connects to standard Ethernet hubs via 8-wire twisted-pair straight-through cable. To access other Ethernet mediums, use 10/100Base-T media converters or Ethernet hubs that can be connected together via fiber, thin-wire, or thick-wire coaxial cables, or any other physical media commercially available with Ethernet hubs.

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244 Communicating with Devices on an Ethernet Network

Ethernet Channel 1 8-pin 10Base-T Connector

The Ethernet connector is an RJ45, 10Base-T connector. The pin-out for the connector is shown below.

Pin

Pin Name

TD+

TD-

RD+ not used by 10BASE-T not used by 10BASE-T

RDnot used by 10BASE-T not used by 10BASE-T

When to use straight-through and cross-over pin-out:

• SLC 5/05 Ethernet port to 10/100Base-T Ethernet hub cables utilize a straight-through pin-out (1-1, 2-2, 3-3, 6-6).

• Direct point-to-point 10/100Base-T cables connecting the SLC

5/05 Ethernet port directly to another SLC 5/05 Ethernet port (or a computer 10/100Base-T port) require a cross-over pin-out

(1-3, 2-6, 3-1, 6-2).

Cables

Shielded and non-shielded twisted-pair 10/100Base-T cables with RJ45 connectors are supported. The maximum cable length between an

SLC 5/05 Ethernet port and a 10/100Base-T port on an Ethernet hub

(without repeaters or fiber) is 100 m (323 ft). However, in an industrial application, cable length should be kept to a minimum.

Ethernet Connections

TCP/IP is the mechanism used to transport Ethernet messages. On top of TCP, the Client/Server Protocol is required to establish sessions and to send the MSG commands. Connections can be initiated by either a client program (INTERCHANGE or RSLinx application) or a processor.

The client program or processor must first establish a connection to the SLC 5/05 processor to enable the SLC 5/05 processor to receive solicited messages from a client program or another processor.

Publication 1747-UM011F-EN-P - May 2007

Communicating with Devices on an Ethernet Network 245

In order to send an outgoing message, the SLC 5/05 processor must first establish a connection with the destination node at a specified IP address on the Ethernet network. A connection is established when a

MSG instruction executes and no previous connection exists.

When a MSG instruction executes, the SLC 5/05 processor checks to see whether a connection has been established with the destination node. If a connection has not been established, the SLC 5/05 processor attempts to establish a connection of the peer type.

In order to receive messages from another device on Ethernet, an incoming connection must be established. This incoming connection is made by the sending processor and uses one incoming connection in the receiving processor.

The SLC 5/05 processor supports a maximum of 32 connections for the 1747-L551 processor, and 48 connections for 1747-L552 and 64 connections for 1747-L553 processor, allowing simultaneous communication with up to 64 other devices or applications.

Connections

Number of Connections

(1)

(2)

, 40

(3)

, or 56

(4)

Dedicated to outgoing connections incoming connections either incoming or outgoing connections

(1)

Connections established by an INTERCHANGE client, RSLinx client, and peers are all included when counting the number of connections.

(2)

1747-L551 processor.

(3)

1747-L552 processor.

(4)

1747-L553 processor.

IMPORTANT

For outgoing connections, no more that one connection per destination node is established. If multiple MSG instructions use the same destination node, they share the same connection.

Configuring the Ethernet

Channel on the SLC 5/05

Processor

There are two ways to configure the SLC 5/05 Ethernet channel 1. The configuration can be done via a BOOTP/DHCP request at processor powerup, or by manually setting the configuration parameters by using RSLogix 500 programming software. The configuration

parameters are shown on page 246.

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246 Communicating with Devices on an Ethernet Network

Configuration Parameters

Parameter

Diagnostic File

Number

Description

The file number of the diagnostic counter for this channel. A Diagnostic File Number value of zero means that no diagnostics file has been configured for this channel. The Diagnostic

File Number must be an integer within the limits of 7, 9...255.

Default

Status read/write

MSG

Connection

Timeout

MSG Reply

Timeout

The amount of time (in ms) allowed for a MSG instruction to establish a connection with the destination node. The MSG Connection Timeout has 250 ms resolution and a range from

250...65,500.

The amount of time (in ms) that the SLC 5/05 processor will wait for a reply to a command that it has initiated via a MSG instruction. The MSG Reply Timeout has 250 ms resolution and a range from 250...65,500.

15,000 ms read/write

3000 ms read/write

Inactivity

Timeout

The amount of time (in minutes) that a MSG connection may remain inactive before it is terminated. The Inactivity Timeout has a 1 minute resolution and a range from 1...65,500 minutes.

IP Address The SLC 5/05 internet address (in network byte order). The internet address must be specified to connect to the TCP/IP network.

Subnet Mask The SLC 5/05 subnet mask (in network byte order). The Subnet Mask is used to interpret IP addresses when the internet is divided into subnets. A Subnet Mask of all zeros indicates that no subnet mask has been configured.

Gateway

Address

The address of a gateway (in network byte order) that provides connection to another IP network. A Gateway Address of all zeros indicates that no gateway has been configured.

BOOTP Enable The BOOTP enable switch. When BOOTP is enabled, the SLC 5/05 processor attempts to learn its network related parameters at powerup via a BOOTP request. There must be a

BOOTP server on the network capable of responding to this BOOTP request. When BOOTP is disabled, the SLC 5/05 processor uses the locally configured network related parameters

(for example, IP Address, Subnet Mask, Broadcast Address).

Hardware

Address

The SLC 5/05 Ethernet hardware address.

30 minutes

(undefined)

Ethernet hardware address read/write read/write read/write read/write

1 (enabled) read/write read only

Configuration Using

RSLogix 500 Programming

Software

Refer to the documentation provided with your programming software.

Configuration Via BOOTP

BOOTP (bootstrap protocol) is a low-level protocol that TCP/IP nodes use to obtain start-up information. By default, the SLC 5/05 processor broadcasts BOOTP requests at powerup. The BOOTP Valid parameter remains clear until a BOOTP reply has been received. BOOTP lets you dynamically assign IP Addresses to processors on the Ethernet

Link.

To use BOOTP, a BOOTP Server must exist on the local Ethernet subnet. The server is a computer that has BOOTP Server software

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Communicating with Devices on an Ethernet Network 247 installed and reads a text file containing network information for individual nodes on the network.

The host system’s BOOTP configuration file must be updated to service requests from SLC 5/05 processors. The following parameters must be configured.

Configurable BOOTP Parameters

Parameter

IP Address

Description

A unique IP Address for the SLC 5/05 processor.

Subnet Mask Specifies the net and local subnet mask as per the standard on subnetting

RFC 950, Internet Standard Subnetting Procedure.

Gateway Specifies the IP address of a gateway on the same subnet as the

SLC 5/05 processor that provides connections to another IP network.

TIP

You can use any commercially available BOOTP server. If you do not have BOOTP Server capabilities on your network, and you want to dynamically configure Channel 1, you can download the free Rockwell Automation BOOTP server from the Rockwell

Automation website. Go to www.ab.com/networks/bootp.html

When BOOTP is enabled, the following events occur at power-up:

• The processor broadcasts a BOOTP-request message containing its hardware address over the local network or subnet.

• The BOOTP server compares the hardware address with the addresses in its look-up table.

• The BOOTP server sends a message back to the processor with the IP address and other network information that corresponds to the hardware address it received.

With all hardware and IP addresses in one location, you can easily change IP addresses in the BOOTP configuration file if your network needs change.

The BOOTP request can be disabled by clearing the BOOTP Enable parameter in the channel Configuration File. When BOOTP Enable is cleared (disabled), the SLC 5/05 processor uses the existing channel configuration data.

IMPORTANT

If BOOTP is disabled, or no BOOTP server exists on the network, you must use SLC 500 programming software to enter/change the IP address for each processor.

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248 Communicating with Devices on an Ethernet Network

Use the Rockwell BOOTP Utility

The Rockwell BOOTP utility is a standalone program that incorporates the functionality of standard BOOTP software with a user-friendly graphical interface. You can download it from www.ab.com/networks/bootp.html. The device must have BOOTP enabled (factory default) to use the utility.

To configure your device by using the BOOTP utility, perform the following steps.

1. Run the BOOTP software. In the BOOTP Request History panel you will see the hardware addresses of devices issuing BOOTP requests.

2. Double-click on the hardware address of the device you want to configure.

You will see the New Entry pop-up window with the device's

Ethernet Address (MAC).

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3. Enter the IP Address, Subnet Mask, and Gateway you want to assign to the device, and click on OK.

Communicating with Devices on an Ethernet Network 249

The device will be added to the Relation List, displaying the

Ethernet Address (MAC) and corresponding IP Address, Subnet

Mask, and Gateway (if applicable).

Using DCHP Software To

Configure Your Processor

DHCP software automatically assigns IP addresses to client stations logging onto a TCP/IP network. DHCP is based on BOOTP and maintains some backward compatibility. The main difference is that

BOOTP was designed for manual configuration, while DHCP allows for dynamic allocation of network addresses and configurations to newly attached devices.

Be cautious about using DHCP software to configure your SLC 5/05 processor. A BOOTP client can boot from a DHCP server only if the

DHCP server is specifically written to also handle BOOTP queries.

This is specific to the DHCP software package you use. Check with your system administrator to see if your DHCP package supports

BOOTP commands and manual IP allocation.

ATTENTION

The processor must be assigned a fixed network address. The

IP address of the processor must not be dynamically provided.

Failure to observe this precaution may result in unintended machine motion or loss of process control.

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250 Communicating with Devices on an Ethernet Network

Using Subnet Masks and

Gateways

Configure subnet masks and gateways by using the Ethernet channel

1 configuration screen.

IMPORTANT

If BOOTP is enabled, you can’t change any of the advanced

Ethernet communication characteristics.

If your network is divided into subnetworks that use gateways or routers, you must indicate the following information when configuring channel 1.

• Subnet mask

• Gateway address

A subnet mask is a filter that a node applies to IP addresses to determine if an address is on the local subnet or on another subnet. If an address is on another subnetwork, messages are routed through a local gateway to be transferred to the destination subnetwork.

If your network is not divided into subnets, then leave the subnet mask field at the default.

Subnet Mask Tasks

If you are manually configuring channel 1 and have a network with subnets using BOOTP to configure channel

1 and have a network with subnets

Then

•be sure the BOOTP enable field is disabled.

•use your programming software to enter the subnet mask and gateway address.

•be sure BOOTP is enabled.

•include the subnet mask(s) and gateway address(es).

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Manually Configuring Channel 1 for Processors on Subnets

If you are manually configuring channel 1 for a processor on a subnet, deselect BOOTP Enable option by unchecking that checkbox.

See the table below to configure the subnet mask and gateway address fields for each processor via your programming software.

Configure Subnet Task and Gateway Field

This field

Subnet Mask

Specifies

The processor’s subnet mask.

The subnet mask is used to interpret IP addresses when the internet is divided into subnets.

Gateway Address The IP address of the gateway that provides a connection to another IP network.

Configure by doing the following

Enter an address of the following form: a.b.c.d Where: a, b, c, d are between 0...255 (decimal)

If your network is not divided into subnets, then leave the subnet mask field at the default. If you change the default and need to reset it, type

0.0.0.0.

Enter an address of the following form: a.b.c.d Where: a, b, c, d are between 0...255 (decimal)

This field is required when you communicate with other devices not on a local subnet.

The default address is No Gateway.

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252 Communicating with Devices on an Ethernet Network

SLC 5/05 Processor

Embedded Web Server

Capability

SLC 5/05 processors with OS501, Series C, FRN 6 (or later) include not only the embedded web server (introduced in FRN 5), which allows viewing of module information, TCP/IP configuration, and diagnostic information, but an enhanced version that also allows viewing of the data table memory map, data table monitor screen, and user-provided web pages via Ethernet by using a standard web browser.

To view the web server main menu from a standard web browser, type in http://www.xxx.yyy.zzz for the web address, where www.xxx.yyy.zzz is the IP address of the SLC 5/05 processor.

The following topics appear on the home page main menu:

• Module Information

• TCP/IP Configuration

• Diagnostic Information

• Data Table Memory Map

• Data Table Monitor

• User Provided Pages

Home Page Menu

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Module Information

The module information page displays a table with information about the processor. The specific information displayed includes the processor model, series/revision of the processor, mode of the processor and the name of the program in the processor. Also displayed is the revision/build of the Ethernet firmware and the module uptime (time since power was last applied).

TCP/IP Configuration Data (Read Only)

This page displays a table with information about the current TCP/IP configuration parameters. Included are the module’s IP address, the subnet mask, gateway address, the Ethernet hardware address and whether BOOTP is enabled. Also included are the name server, secondary name server and the default domain name parameters, if configured.

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Diagnostic Information

This section gives you access to the various diagnostic information screens that are available. It is divided into two sections, the Network

Stack Statistics and Application Level Statistics. The Network Stack

Statistics detail information about the TCP/IP stack, while the

Application Level Statistics are related to the Allen-Bradley Client

Server Protocol (CSP) and Control and Information Protocol (CIP) diagnostics.

The individual diagnostic screens automatically refresh using a time which is configurable by you and defaults to 15 seconds.

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Data Table Memory Map

The Data Table Memory Map page displays a list of the data table files, their type, and size in elements for a connected SLC 5/05 processor.

Each file contains a hyperlink that takes you to the specific Data Table

Monitor page for that file. When you click on a particular file, the Data

Table Monitor page appears, displaying the contents of the data table file you selected.

Data Table Monitor

The available and default display formats depend on the data type of the file.

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256 Communicating with Devices on an Ethernet Network

Press Prev or Next to display the previous or next page of the data table file, if any.

You can change the Data Table Address, Display format and Refresh data every xx seconds fields by entering data in the text boxes and clicking Change Parameters.

To change the refresh data function back to the default of 15 s, click

Default. To disable the refresh data function, click Disable.

Data Table Monitor

You may also go directly to the Data Table Monitor screen by selecting it on the home page or by clicking on D/T Monitor on the bottom row of the other pages. In this case, since a particular data file has not been chosen, a default screen is displayed.

From here you may enter in the starting data table address to display.

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Communicating with Devices on an Ethernet Network 257

User Provided Pages

You can use a text editor to generate up to 16 user-provided web pages. Each page is stored in four consecutive ASCII files of the SLC

5/05 processor. The channel configuration feature of RSLogix 500 software (version 6.0 or later), lets you select the starting file number and the number of user pages to be stored.

RSLogix 500 software (version 6.0 or later) also lets you import an

HTML file from your personal computer to specified ASCII files in the

SLC 5/05 processor. See page 261 for details.

HTML Pages

Referencing Other Pages/Servers - following are some basic considerations when referencing other pages or servers:

• reference user-specified pages in the SLC 5/05 processor by using the names user1.html...user16.html

• to reference a page on the same processor, specify a URL such as /user2.html

• to reference a page on another processor, specify a URL such as http://www.xxx.yyy.zzz/user2.html, where www.xxx.yyy.zzz is the IP address of the processor

• you can reference other WWW servers and display images from other sources without affecting your usage of data table memory

(except for the size of the HTTP reference)

Referencing Data Table Memory - reference data table memory locations by placing custom tags into your HTML source which specify

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258 Communicating with Devices on an Ethernet Network the data table location and optional formatting information. Use the following format for the custom tag:

<!ABDTR-file_type{file_number}:{file_element}[,#elements][%format]>

The items surrounded by {} are sometimes optional. The items surrounded by [] are always optional.

You must always specify the basic file reference. Depending on which file is being referenced, file_number or file_element may be defaulted.

If the file_type is I, O or S, the file_number does not need to be specified, but the file_element must be specified. If the file_type is not one of the three special files, the file_number must be specified and the file_element may default to zero (the input, output and status files have fixed file numbers).

When defining your custom tag, consider the following items.

Custom Tag Considerations

Tag Item

#elements

%format

Display format defaults

Fixed display formats

Description

If not specified, this defaults to one. If it is less than one, it also defaults to one. Each element is output using the same format

(whether specified with % format or defaulted).

Legal values are %d for decimal and %x for hexadecimal. The following file types allow the format to be specified:

• Input

• Output

• Status

• Integer

• Timer

• Counter

• Control

Input and output file elements are output in decimal format. Status file elements are output in hexadecimal format with a leading 0x.

Integer file elements are output in decimal format. Complex data types (Timer, Counter, Control) are output as a table with bits and important words specified.

Float files are always output in floating point format (C%g format).

ASCII and STring files are always output as a null terminated text string. Binary files are always output as two binary bytes.

HTML Examples - the following example shows an HTML code segment with a short description of what you would see on a web browser.

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HTML Code

Examples HTML Code

Input image word I:0 <!ABDTR-I:0>

Timer T4:0

<!ABDTR-T4:0>

<!ABDTR-T4:0%d>

N24:0 to N24:3 <!ABDTR-N24:0,4>

S:21 to S:23 <!ABDTR-S:21, 3%d>

Web browser displays the value of the first word of the input image table in the default format of decimal with bold type.

the values of the timer in T4:0 in the default format of a table.

the values of the three words comprising timer T4:0 in decimal with bold type.

the values of the four words in

N24:0 through N24:3 in decimal with bold type.

the values of the three words in

S:21 through S:23 in decimal with bold type.

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Generating Custom Data Table Monitor Pages

You can generate Custom Data Table Monitor pages with your text editor then download them to the SLC 5/05 processor using

RSLogix 500 version 6.0 or later. The first element of the file must contain a special tag as follows:

<!ABCDM-xx> where xx is the automatic refresh rate in seconds (01...99).

A value outside the range defaults to a snapshot display.

You can modify the refresh rate three different ways:

• Enter the desired refresh rate and press Change

• Select Default for a 15 second refresh

• Disable the refresh by selecting Disable

Referencing Data Table Memory - the Data Table locations in the

Custom Data Table Monitor are referenced by placing custom tags into the ASCII file of the processor. The format of the custom tag is:

<!ABDTR-file_type{file_number}:{file_element}[,#elements][%format]

[#expand][!comment]>

The items surrounded with {} are sometimes optional, whereas the items surrounded by [] are always optional.

You must always specify the basic file reference. Depending on which file is being referenced, file_number or file_element may be defaulted.

If the file_type is I, O or S, the file_number does not need to be specified, but the file_element must be specified. If the file_type is not one of the three special files, the file_number must be specified and the file_element may default to zero (because the input, output and status files have fixed numbers).

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Tag Elements

Tag Item

#elements

%format

#expand

!comment

Fixed display formats

Description

If not specified, this defaults to one. If it is less than one, also defaults to one. Each element is output using the same format (whether specified with %format or defaulted). Any associated comment is displayed only for the first element.

Legal values are %b for binary, %d for decimal, %0 for octal and %x for hexadecimal. The following file types allow the format to be specified:

• Input

• Output

• Status

• Integer

All other file types are displayed in an appropriate format.

If a %format modifier is present, the format may be changed by clicking on the file type/number via a web browser.

Legal values are #c and #e. This modifier determines whether the structure file types are displayed in their expanded or compact formats. If a # modifier is present, the format may be changed by clicking on the [+]/[-] via a web browser. If a #modifier is not present, the default display of expanded is used.

Data after the exclamation point and up to the closing > is displayed in the Comment column of the monitor.

Float files are always output in floating point format (C%g format). String files are always output as a null terminated text string. Binary files are always output as four binary nibbles. ASCII files are displayed in a memory dump format.

Importing User Page Files to the SLC 5/05 Processor

Follow this procedure to use RSLogix 500 software to import user page files to the SLC 5/05 ASCII files.

1. In the Project folder (under the Data Files folder), right-click on the first of the block of four consecutive ASCII files where you will import the user page HTML file.

2. Click Properties.

3. Click Import HTML.

4. Use the browser to locate the user page HTML file you want to import.

5. Double-click on the file to select it.

6. Click OK.

7. Repeat this process for each user page file.

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262 Communicating with Devices on an Ethernet Network

8. When all user page files have been imported, go online with your SLC 5/05 processor.

9. Select the User provided Pages link to view the User Provided

Pages menu.

Click the User Provided Page #X to display that specific page.

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You can change the radix display of I, O, S, and N file addresses, which appear with an underline.

1. Go back to the User-Provided Custom Data Table Monitor page.

2. In the Address column, click on an underlined address to display the radix selection page.

3. Click on a radio button to select the desired radix type.

Follow this procedure to see the Sample Extended Format page.

Communicating with Devices on an Ethernet Network 263

1. Go back to the User-Provided Custom Data Table Monitor page.

2. In the Address column, click + before an address to display the

Sample Extended Format.

Click the link under the file heading to display an ASCII dump of the

ASCII file. For example, click A116. This screen appears.

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264 Communicating with Devices on an Ethernet Network

Notes:

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Appendix

Calculating Heat Dissipation for the SLC 500

Control System

This appendix will assist you in calculating the heat dissipation of your SLC 500 controller. It consists of:

• a definition of key term.

• a table and graph.

• an example heat dissipation calculation.

• a heat dissipation worksheet.

To select an enclosure see page 42.

Definition of Key Terms

We use these terms throughout this appendix. Familiarize yourself with them before proceeding further.

Watts per Point - maximum heat dissipation that can occur in each field wiring point when energized.

Minimum Watts - amount of heat dissipation that can occur when there is no field power present.

Total Watts - the watts per point plus the minimum watts (with all points energized).

Calculating Module Heat

Dissipation

To calculate the heat dissipation of your SLC controller you must consider:

• the maximum heat dissipated (with field power applied) by the processor, all I/O and specialty modules, and any peripheral devices for each chassis.

• the heat dissipated by the power supply. This is determined by the maximum load on the power supply of the processor, each

I/O and specialty module, peripheral device, and device drawing power directly off the power supply via the POWER

OUT terminals.

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266 Calculating Heat Dissipation for the SLC 500 Control System

Calculated Watts vs. Total Watts

You calculate maximum heat dissipation by using one of these methods.

• Calculated watts method

• Total watts method

Use calculated watts if you know exactly how many outputs and inputs on each card are active at any given time. This method will give you a lower, more accurate heat dissipation calculation than the total watts method. With this method, use the formula below for calculating the heat dissipation of each module. Then use these values in step 1 of the Example Worksheet for Calculating Heat Dissipation

on page 272.

(points energized x watts per point) + minimum watts = heat dissipation of module

Use total watts if you are not sure how many points on a module are energized at any time. Total watts is the watts per point (with all points energized) plus the minimum watts. Total watts generated by

each module are provided in the table on page 267.

Once you have determined which method you will use to calculate the heat dissipation of your modules, see the Example Worksheet for

Calculating Heat Dissipation on page 272. This worksheet shows you

how to calculate the heat dissipation for the example SLC control

system on page 271.

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Hardware

Component

Processors

Digital Input Modules

Calculating Heat Dissipation for the SLC 500 Control System 267

Power Supply Loading Reference Table

Use the table to calculate the power supply loading and heat dissipation for each chassis in your SLC modular application.

Cat. No.

1746-IG16

1746-IH16

1746-IM4

1746-IM8

1746-IM16

1746-IN16

1746-ITB16

1746-ITV16

1746-IV8

1746-IV16

1746-IV32

(1)

1747-L511

1747-L514

1747-L524

1747-L531

1747-L532

1747-L533

1747-L541

1747-L542

1747-L543

1747-L551

1747-L552

1747-L553

1746-IA4

1746-IA8

1746-IA16

1746-IB8

1746-IB16

1746-IB32

(1)

1746-IC16

Watts per Point

0.220

0.020

0.320

0.350

0.200

0.270

0.200

Total Watts

3.95

1.00

5.17

1.60

3.10

6.00

3.625

1.90

3.60

6.90

4.00

1.30

2.40

4.80

4.00

1.75

2.90

4.00

1.90

3.60

6.90

Minimum Watts

0.425

0.700

0.217

0.175

0.250

0.425

0.250

0.425

0.530

4.00

0.175

0.250

0.425

1.75

2.90

4.00

0.250

0.425

0.530

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268 Calculating Heat Dissipation for the SLC 500 Control System

Hardware

Component

Digital Output Modules

Digital Combination Modules

Analog Input Modules

Analog Output Modules

Analog Combination Modules

1746-IO8

1746-IO12

1746-IO12DC

1746-NI4

1746-NI8

1746-NI16I

1746-NI16V

1746-NO4I

1746-NO4V

1746-NO8I

1746-NO8V

1746-FIO4I

1746-FIO4V

1746-NIO4I

1746-NIO4V

Cat. No.

1746-OA8

1746-OA16

1746-OAP12

1746-OB6EI

1746-OB8

1746-OB16

1746-OB16E

1746-OB32

(1)

1746-OB32E

1746-OBP8

1746-OBP16

1746-OG16

1746-OV8

1746-OV16

1746-OV32

(1)

1746-OVP16

1746-OW4

1746-OW8

1746-OW16

1746-OX8

1746-IO4

Watts per Point

0.078

0.300

0.310

0.033

0.775

0.388

0.078

1.000

0.462

1.000

0.440

0.775

0.150

0.338

0.078

0.310

0.133

0.138

0.033

0.825

0.270 per input pt.

0.133 per output pt.

0.270 per input pt.

0.133 per output pt.

0.270 per input pt.

0.133 per output pt.

0.200 per input pt.

0.133 per output pt.

3.00

4.60

3.90

5.00

3.80

6.6

4.44

2.20

3.4

2.43

3.80

3.800

3.100

3.80

3.10

Total Watts

4.80

3.08

6.21

1.50

6.90

7.60

4.80

9.00

9.30

10.85

2.90

6.90

3.07

7.60

4.80

6.21

1.90

3.70

5.70

8.60

1.60

1.380

2.130

1.840

2.170

3.4

2.43

3.760

4.960

3.780

2.44

1.98

3.760

3.040

3.760

3.040

Minimum Watts

2.260

0.675

1.250

0.900

0.675

1.400

2.260

0.925

1.850

0.230

0.675

1.400

2.260

1.250

1.310

2.590

5.170

2.590

0.750

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Calculating Heat Dissipation for the SLC 500 Control System 269

Hardware

Component

Specialty Modules

Cat. No.

Watts per Point Minimum Watts

Communication Modules

Peripheral Devices

1746-BAS

1746-BLM

1746-BTM

1746-HSCE

1746-HSCE2

1746-HSRV

1746-HSTP1

1746-INT4

1746-NR4

1746-NR8

1746-NT4

1746-NT8

1746-QS

1746-QV

1747-ACN15

1747-ACNR15

1747-ASB

1747-BSN

1747-DCM

1747-KE

1747-KFC15

1747-SCNR

1747-SDN

1747-SN

1747-AIC

1747-DTAM

1747-PIC

1747-PSD

1761-NET-AIC

(2)

1761-NET-DNI

1761-NET-ENI(W)

(2)

2.500

2.000

(1)

Power supply loading for Series D and later modules.

(2)

Current for the 1761-NET-AIC and 1761-NET-ENI may be supplied from the SLC power supply or from an external 24V dc source.

4.500

2.000

2.500

2.000

2.500

4.5

1.875

4.0

1.800

3.750

3.200

4.5

2.5

1.26

1.500

1.82

0.800

2.28

9.80

1.075

4.5

3.750

5.00

2.59

1.600

1.25

1.50

Total Watts

4.500

2.000

2.500

2.000

2.500

4.5

1.875

4.0

1.800

3.800

3.200

4.5

2.5

1.26

1.500

1.82

0.800

2.28

9.80

1.075

4.5

3.800

5.00

2.59

1.600

1.25

1.50

2.500

2.000

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270 Calculating Heat Dissipation for the SLC 500 Control System

Power Supply Heat Dissipation Graphs

Use the graphs below for determining the power supply dissipation in step 2 of the Example Worksheet for Calculating Heat Dissipation.

1746-P1 Power Supply Change in Power

Dissipation due to Output Loading

0 5 10 15 20 25

Power Supply Loading (Watts)

1746-P2 Power Supply Change in Power

Dissipation due to Output Loading

0 10 20 30 40 50 60

Power Supply Loading (Watts)

1746-P3 Power Supply Change in Power

Dissipation due to Output Loading

0 5 10 15 20 25 30 35

Power Supply Loading (Watts)

1746-P4 Power Supply Change in Power

Dissipation due to Output Loading

0 10 20 30 40 50 60 70 80

Power Supply Loading (Watts)

1746-P5 Power Supply Change in Power

Dissipation due to Output Loading

10 20 30 40 50

Power Supply Loading (Watts)

1746-P6 Power Supply Change in Power

Dissipation due to Output Loading

0 10 20 30 40 50 60

Power Supply Loading (Watts)

1746-P7 Power Supply Change in Power

Dissipation due to Output Loading

24V input

12V input

0 20 40 60 80 100

Power Supply Loading (Watts)

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Calculating Heat Dissipation for the SLC 500 Control System 271

Example Heat Dissipation

Calculation

If your controller consisted of the following hardware components, you would calculate heat dissipation as shown in the worksheet on

page 272.

DTAM

Peripheral Device

Chassis 1 Chassis 2

Slot 0 1 2 3 Slot 4 5 6 7

User Power to

Peripheral

The following table details the total watts dissipated by the modules and peripheral devices in the above SLC 500 controller. The numbers

were taken from the tables on page 267.

Slot Number

Cat. No.

1747-L511

1746-BAS

1746-IA8

Chassis 1

Min Watts

1.75

3.750

0.250

Max Watts

1.75

3.80

2.40

Slot Number

Cat. No.

1746-IA16

1746-OW16

Chassis 2

Min Watts

0.425

5.170

Max Watts

4.800

5.500

(2)

5.700

Peripheral

Device

User Power to

Peripheral

1746-OV8

1747-DTAM

0.675

2.500

6.90

2.50

1746-OW16

5.170

2.400

(1) NA

(1)

The user power on the 1746-P1 power supply for chassis 2 is being used to power a peripheral (100 mA at 24V dc).

(2)

This output card uses 5.5 W because only 10 points are on at any one time. Using the calculated watts formula - (number of points energized x watts per point) + minimum watts = heat dissipation of module - the calculated watts for the 1746-OW16 module is 5.5 W: (10 points x.33) + 5.17 = 5.5 W.

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272 Calculating Heat Dissipation for the SLC 500 Control System

Example Worksheet

Procedure for calculating the total heat dissipation for the controller

1. Write in the total watts dissipated by the processor, I/O, and speciality modules, and any peripheral devices attached to the processor.

Chassis Number 1 Chassis Number 2 Chassis Number 3

Slot Cat. No.

Cat. No.

0 1747-L511

Heat Dis

(Watts)

Slot

1.75

4 1746-IA16

Heat Dis

(Watts)

Slot

4.8

1746-BAS

1746-IA8

1746-OV8

3.8

2.4

6.9

1746-IA16

1746-OW16

4.8

5.5

5.7

Heat Dis

(Watts)

Peripheral Dev 1747-DTAM 2.5

Peripheral Dev

Heat Dis

(Watts)

Slot

1.75

Peripheral Dev

2.Add the heat dissipation values together for your total chassis heat dissipation.

Peripheral Dev

17.35

2.Add the heat dissipation values together for your total chassis heat dissipation.

20.8

3.Calculate the power supply loading for each chassis (minimum watts) for each device.

(1)

Chassis Number 1 Chassis Number 2

Peripheral Dev

2.Add the heat dissipation values together for your total chassis heat dissipation.

Chassis Number 3

Slot Cat. No.

Cat. No.

Heat Dis

(Watts)

Slot

0.425

Cat. No.

1747-L511

1746-BAS

1746-IA8

1746-OV8

3.75

0.25

0.675

1746-IA16

1746-OW16

0.425

5.17

Heat Dis

(Watts)

User Power User Power

Peripheral Dev 1747-DTAM

4.Add the heat dissipation values together for your power supply loading.

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

2.5

Peripheral Dev

8.925

4.Add the heat dissipation values together for your power supply loading.

13.0

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

30.35

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

7.Add the values together from step 6 across to the right.

2.4

User Power

Peripheral Dev

13.59

4.Add the heat dissipation values together for your power supply loading.

15.0

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

35.8

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

8.Covert the value from step 7 to BTUs/hr by multiplying the total heat dissipation of your controller by 3.414.

66.15

225.84

(1)

If you have a device connected to user power, multiply 24V dc by the amount of current used by that device. Include user power in the total power supply loading.

Publication 1747-UM011F-EN-P - May 2007

Calculating Heat Dissipation for the SLC 500 Control System 273

Blank Worksheet

Procedure for calculating the total heat dissipation for the controller

1. Write in the total watts dissipated by the processor, I/O, and speciality modules, and any peripheral devices attached to the processor.

Chassis Number 1 Chassis Number 2 Chassis Number 3

Slot Catalog No.

Heat Dis

(Watts)

Slot Catalog No.

Heat Dis

(Watts)

Slot Catalog No.

Heat Dis

(Watts)

Peripheral Dev Peripheral Dev Peripheral Dev

Peripheral Dev

2.Add the heat dissipation values together for your total chassis heat dissipation.

Peripheral Dev

2.Add the heat dissipation values together for your total chassis heat dissipation.

3.Calculate the power supply loading for each chassis (minimum watts) for each device.

(1)

Chassis Number 1 Chassis Number 2

Slot Catalog No.

Heat Dis

(Watts)

Slot Catalog No.

Peripheral Dev

2.Add the heat dissipation values together for your total chassis heat dissipation.

Heat Dis

(Watts)

Chassis Number 3

Slot Catalog No.

Heat Dis

(Watts)

User Power User Power

Peripheral Dev Peripheral Dev

4.Add the heat dissipation values together for your power supply loading.

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

4.Add the heat dissipation values together for your power supply loading.

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

7.Add the values together from step 6 across to the right.

8.Covert the value from step 7 to BTUs/hr by multiplying the total heat dissipation of your controller by 3.414.

User Power

Peripheral Dev

4.Add the heat dissipation values together for your power supply loading.

5.Use the power supply loading (step

4) for each chassis and the graphs

supply dissipation.

6.Add the chassis dissipation (step 2) to the power supply dissipation

(step 5).

(1)

If you have a device connected to user power, multiply 24V dc by the amount of current used by that device. Include user power in the total power supply loading.

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274 Calculating Heat Dissipation for the SLC 500 Control System

Publication 1747-UM011F-EN-P - May 2007

275

Glossary

We use the following terms throughout this manual. Refer to the

Allen-Bradley Industrial Automation Glossary, publication AG-7.1, for a complete guide to Allen-Bradley technical terms.

address

A character string that uniquely identifies a memory location. For example, I:1/0 is the memory address for data in Input file word 1, bit

AIC+ Advanced Interface Converter

A device that provides RS-232 isolation to an RS-485 half-duplex communication link. (catalog number 1761-NET-AIC.) application

1) A machine or process monitored and controlled by a controller.

2) The use of computer- or processor-based routines for specific purposes.

auto answer

Type of modem that has self-contained timeouts and tests. It can answer and terminate a call automatically.

backplane current draw

The amount of current the module requires from the backplane. The sum of the backplane current draw for all modules in a chassis is used to select the appropriate chassis power supply.

baud rate

The speed of communication between devices on a network. All devices must communicate at the same communication rate. For example, the DH-485 network devices default to 19.2 Kbaud.

bit

The smallest unit of memory used in discrete or binary logic, where the value 1 represents ON and 0 represents OFF.

block diagrams

A method used to illustrate logic components or a sequence of events.

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276 Glossary

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Boolean operators

Logical operators such as AND, OR, NAND, NOR, NOT, and

Exclusive-OR that can be used singularly or in combination to form logic statements or circuits. Can have an output response of T or F.

BOOTP (Bootstrap Protocol)

A low-level protocol that provides configuration information to other nodes on a TCP/IP network with DOS, Microsoft Windows,

Windows NT, Windows 9x, VMS, and HP-UNIX platforms.

branch

A parallel logic path within a rung of a ladder program. Its primary use is to build OR logic.

calculated watts

The amount of heat generated by those points energized on an I/O module.

channel

Communication port on a module.

chassis

A hardware assembly that houses devices such as I/O modules, adapter modules, processor modules, and power supplies.

communication scan

A part of the controller’s operating cycle. Communication with devices

(such as other controllers and operator interface devices) takes place during this period.

continuous current per module

The maximum current for each module. The sum of the output current for each point should not exceed this value.

continuous current per point

The maximum current each output is designed to continuously supply to a load.

control program

User logic (the application) that defines the controller’s operation.

Glossary 277 controller

A device, such as a programmable controller, used to control output devices.

controller overhead

A portion of the operating cycle used for housekeeping purposes (for example, memory checks, tests, and communication).

control profile

The means by which a controller determines which outputs turn on under what conditions.

counter

A device that counts the occurrence of some event.

CPU (central processing unit)

The decision-making and data storage section of a programmable controller.

data table

The part of processor memory that contains I/O status and files where user data (such as bit, integer, timers, and counters) is monitored, manipulated, and changed for control purposes.

DHCP (Dynamic Host Configuration Protocol)

A protocol used to assign dynamic IP addresses to devices residing on a network.

DF1 protocol

A peer-to-peer link-layer protocol that combines features of ANSI

X3.28-1976 specification subcategories D1 (data transparency) and F1

(two-way simultaneous transmission with embedded responses).

DIN rail

Manufactured according to Deutsche Industrie Normenausshus (DIN) standards, a metal railing designed to ease installation and mounting of your devices.

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278 Glossary

Publication 1747-UM011F-EN-P - May 2007 direct connect

Type of modem that is connected to a dedicated, leased phone line and is active at all times.

Data Highway Plus implements peer-to-peer communication with a token-passing scheme to rotate link mastership among the nodes connected to that link. Data Highway Plus has the capability for online programming and is optimized for networks with fewer nodes

(Data Highway Plus supports up to 64 nodes).

DH-485 network

The DH-485 network is a collection of devices connected to the communication cable allowing information exchange. A communication network based on the EIA Standard for RS-485 using an Allen-Bradley proprietary protocol.

discrete input and output (DIO)

The discrete input and output is the transfer of one to 32 words between a SLC 500 processor and a scanner. All 32 words of input data and all 32 words of output data are updated on each SLC program scan.

download

The transfer of program or data files to a device.

DTE

Data Terminal Equipment.

DTE controlled answer

Type of modem that is unattended and is attached directly to the phone lines. The interface module or the SLC 5/03 processor acts as the Data Terminal Equipment (DTE) which controls the modem via the DTR and RTS signals. The module incorporates timeouts and tests to properly operate these types of modems.

DTR dialing (SLC 5/03 only)

Type of modem that lets you dial a number or end a call based on the status of the RS232 DTR (Data Terminal Ready) signal. To program the modem initialization string and phone number into the internal memory of the modem, use a dumb terminal (or personal computer running terminal emulation software like Procomm, Window’s

Glossary 279

Terminal, or PBASE). Once you have programmed the modem, activate the DTR signal to dial the number, or deactivate the DTR signal to end the call.

EEPROM

Electrically Erasable Programmable Read Only Memory module used to store, back-up, or transfer SLC 500 programs. The SLC 500 processor can read and write to an EEPROM.

EMI

Electromagnetic interference.

encoder

A device that detects position, and transmits a signal representing that position.

Ethernet network

A local area network with a baseband communication rate of 10M bits per second.

executing mode

Any run or test mode.

false

The status of an instruction that does not provide a continuous logical path on a ladder rung.

FIFO (first-in-first-out)

The order that data is stored and retrieved from a file.

file

A collection of data or logic organized into groups.

flash EPROM

Flash Erasable Programmable Read Only Memory module. It combines the programming versatility of EEPROMs with the security precautions of UVPROMs. This means that you have the option of leaving your EPROM programs write protected or unprotected.

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280 Glossary

Publication 1747-UM011F-EN-P - May 2007 full-duplex

A high-performance protocol that allows simultaneous two-way data transmission. For point-to-point applications only.

half-duplex

A high-performance protocol where data transmission is limited to one direction at a time. Used in point-to-point and multi-point applications.

hard disk

A storage device in a personal computer.

high byte

Bits 8...15 of a word.

housekeeping

The portion of the scan when the controller performs internal checks and services communication.

initiator

A node on the DH-485 network capable of acting as a master. When an initiator has the token it can send messages and request replies from any node on the DH-485 network. A personal computer running your programming software is an initiator on the data link. The

SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processors can also be initiators.

input device

A device, such as a push button or a switch, that supplies signals through input circuits to a programmable controller.

input scan

The controller reads all input devices connected to the input terminals.

inrush current

The temporary surge current produced when a device or circuit is initially energized.

Glossary 281 instruction

A mnemonic defining an operation to be performed by the processor.

A rung in a program consists of a set of input and output instructions.

The input instructions are evaluated by the controller as being true or false. In turn, the controller sets the output instructions to true or false.

instruction set

The set of instructions available within a controller.

I/O

Inputs and Outputs

IP address

A 32-bit address assigned to hosts that want to participate in a TCP/IP internet. IP addresses are the abstraction of physical hardware addresses, with a network and host partition which makes routing efficient.

isolated link coupler

The link coupler provides an electrically isolated network connection for an SLC 500 controller (processor or programming station). The link couplers connect the daisy-chained DH-485 communication cable.

ladder logic

A graphical programming format resembling a ladder-like diagram.

The ladder logic programing language is the most common programmable controller language.

least significant bit (LSB)

The element (or bit) in a binary word that carries the smallest value of weight.

LED indicator

Light emitting diode. Used as status indicator for processor functions and inputs and outputs.

LIFO (last-in-first-out)

The order that data is stored and retrieved from a file.

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282 Glossary

Publication 1747-UM011F-EN-P - May 2007 low byte

Bits 0...7 of a word.

logic

A general term for digital circuits or programmed instructions to perform required decision making and computational functions.

manual

Typically an acoustically coupled type of modem. The connection is established by a person on each end of the phone line. They then insert the handsets into an acoustic coupler to complete the connection.

master control relay (MCR)

A hard-wired relay that can be de-energized by any series-connected emergency stop switch.

mnemonic

A simple and easy to remember term that is used to represent a complex or lengthy set of information.

modem

Modulator/demodulator. Equipment that connects data terminal equipment to a communication line.

modes

Selected methods of operation. Example: run, test, or program.

maximum watts

The maximum amount of heat that the module generates with field power present.

minimum load current

The lowest amount of current the output is designed to operate at.

Operating at or below this value is not reliable.

minimum watts

The amount of heat dissipation that can occur when there is no field power present.

Glossary 283 multi-master network

A network in which more than one node has the ability to initiate communication and initialize the link.

M0/M1 file transfer

A M1/M0 file transfer is a method of moving large amounts of data between a SLC 500 processor and its scanner. It transfers files containing a maximum of 256 words and may take more than one SLC program scan to complete.

negative logic

The use of binary logic in such a way that 0 represents the desired voltage level.

network

A series of stations (nodes) connected by some type of communication medium. A network may be made up of a single link or multiple links.

node

Also called a station. An address or software location on the network.

nominal input current

The current at nominal input voltage.

normally closed

Contacts on a relay or switch that are closed when the relay is de-energized or deactivated. They are open when the relay is energized or the switch is activated.

normally open

Contacts on a relay or switch that are open when the relay is de-energized or the switch is deactivated. They are closed when the relay is energized or the switch is activated.

off-delay time

The OFF delay time is a measure of the time required for the controller logic to recognize that a signal has been removed from the input terminal of the controller. The time is determined by circuit component delays and by any applied filter.

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284 Glossary

Publication 1747-UM011F-EN-P - May 2007 offline

When a device is not scanning/controlling or when a programming device is not communicating with the controller.

offset

A continuous deviation of a controlled variable from a fixed point.

off-state current

For input circuits, the maximum amount of leakage current allowed from an input device in its off-state.

off-state leakage current

When a mechanical switch is opened (off-state), no current flows through the switch. Semiconductor switches and transient suppression components which are sometimes used to protect switches, have a small current flow when they are in the off state. This current is referred to as the off-state leakage current. To ensure reliable operation, the off-state leakage current rating must be less than the minimum operating current rating of the device that is connected.

off-state voltage (max)

The maximum input voltage level detected as an off condition by the input module.

on-delay time

The on-delay time is a measure of the time required for the controller logic to recognize that a signal has been presented at the input terminal of the controller.

one shot

A programming technique that sets a bit ON or OFF for one program scan.

online

When a device is scanning/controlling or when a programming device is communicating with the controller.

on-state voltage drop

The voltage developed across the output driver circuit during the on-state at maximum load current.

Glossary 285 operating voltage

For inputs, the voltage range needed for the input to be in the

On-state. For outputs, the allowable range of user-supplied voltage.

output device

A device, such as a pilot light or a motor starter coil, that is energized by the programmable controller.

output scan

The controller turns on, off, or modifies the devices connected to the output terminals.

PCCC (programmable controller communication commands) points per common

The number of input or output points connected to a single return

(common) or supply (vcc).

poll message

A poll message is a point-to-point transfer of data sent by the scanner that solicits a response from a single device. The device responds with its data bit and status bit.

processor

A Central Processing Unit. (See CPU.) processor files

The set of program and data files resident in the controller.

program file

Areas within a processor that contain the logic programs. SLC controllers support multiple program files.

program mode

When the controller is not scanning the control program.

program scan

A part of the controller’s operating cycle. During the program scan, the logic program is processed and the Output Image is updated.

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286 Glossary

Publication 1747-UM011F-EN-P - May 2007 programming device

Programming package used to develop ladder logic diagrams.

protocol

The language or packaging of information that is transmitted across a network.

(I/O) rack

An I/O addressing unit that corresponds to 8 input image-table words and 8 output image-table words. A rack can contain a maximum of 8

I/O groups for up to 128 discrete I/O.

read

To acquire data. For example, the processor reads information from other devices via a read message.

relay

An electrically operated device that mechanically switches electrical circuits.

relay logic

A representation of binary or discrete logic.

remote I/O network

A network where the communication between the processor and the

I/O is across a serial link.

restore

To transfer a program from a device to a controller.

reserved bit

A location reserved for internal use.

retentive data

Information (data) that is preserved through power cycles.

RS-232

An EIA standard that specifies electrical, mechanical, and functional characteristics for serial binary communication circuits.

Glossary 287

RTB

Removable Terminal Block. run mode

An executing mode during which the controller scans or executes the logic program.

rung

A rung contains input and output instructions. During Run mode, the inputs on a rung are evaluated to be true or false. If a path of true logic exists, the outputs are made true (energized). If all paths are false, the outputs are made false (de-energized).

save

To save a program to a computer hard disk.

scan

The scan is made up of four elements: input scan, program scan, output scan, and housekeeping.

scan time

The time required for the controller to complete one scan.

signal delay

For inputs, the response time required to transmit the circuit status from the field wiring to the digital logic. For outputs, the time required to transmit the circuit status from digital logic to the output wiring.

sinking

A term used to describe current flow between two devices. A sinking device provides a direct path to ground.

sinking/sourcing

Describes a current signal flow relationship between field input and output devices in a control system and their power supply. Sourcing

I/O modules supply (or source) current to sinking field devices.

Sinking I/O modules receive (or sink) current from sourcing field devices.

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288 Glossary

Publication 1747-UM011F-EN-P - May 2007 sourcing

A term used to describe current flow between two devices. A sourcing device or circuit provides power. status

The condition of a circuit or system.

strobe message

A strobe message is a multicast transfer of data sent by the scanner that solicits a response from each slave device. The devices respond with their data.

surge current per point

The maximum amplitude and duration (pulse) of current allowed for a given period of time and temperature.

surge suppressor

A device used to absorb voltage transients created by energizing an inductive load to reduce electrical noise or to protect the output circuit. For example, an R-C network, MOV (metal oxide varistor) or diode.

terminal

A point on an I/O module that external devices, such as a push button or pilot light, are wired to.

throughput

The time between when an input turns on and a corresponding output turns on or off. Throughput consists of input delays, program scan, output delays, and overhead.

token

The logical right to initiate communication. In a multi-master network a single token is passed between initiators to make sure two nodes do not transmit at the same time.

true

The status of an instruction that provides a continuous logical path on a ladder rung.

Glossary 289 upload

Data is transferred from the controller to a programming or storage device.

UVPROM

An Ultra-Violet light erasable Programmable Read Only Memory module used to back-up, store, or transfer SLC 500 programs. The SLC

5/01 and SLC 5/02 processor can only read from a UVPROM. An external PROM programmer is used to program (write to) the device.

voltage category

The nominal voltage used to describe the module.

watchdog timer

A timer that monitors a cyclical process and is cleared at the conclusion of each cycle. If the watchdog runs past its programmed time period, it causes a fault.

watts per point

The maximum heat dissipation that can occur in each field wiring point when energized.

write

To send data to another device. For example, the processor writes data to another device with a message write instruction.

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290 Glossary

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Index

Numerics

1746-BAS module

1746-C7 cable

1746-C9 cable

1746-P1 power supply installing

replacing fuse

1746-P2 power supply installing

replacing fuse

1746-P3 power supply installing

replacing fuse

special considerations for grounding

1746-P4 power supply installing

1747-AIC link coupler connecting the communication cable

196

1747-BA, lithium battery

, 135 ,

175

1747-KE module as an RS-232 communication device

on the DH-485 network

185

1747-KFC15 module

1747-L511 processor

1747-L514 processor

1747-L524 processor

1747-L531 processor

1747-L532 processor

1747-L533 processor

1747-L541 processor

1747-L542 processor

1747-L543 processor

1747-L551 processor

1747-L552 processor

1747-L553 processor

1747-M1 EEPROM

1747-M13

1747-M2 EEPROM

1747-M5 adapter socket

1747-NET-DNI interface

269

1747-PIC interface

1747-SCNR module

1747-SDN module

1747-UIC interface

description

example network

function on DH-485

Installation Instructions publication

185

1761-NET-AIC interface

42 ,

233

, 269

1761-NET-DNI interface

1770-KF3 module

1784-KTXD card

1784-PCMK card

1784-PKTX(D) module

18 ,

1785-KA5 module on the data highway plus network

5/01 processors general specifications

hardware features

83 ,

status indicators

troubleshooting

5/02 processor general specifications

hardware features

installing

status indicators

troubleshooting

5/03 processors active modem-control lines

CTS (Clear to Send)

DCD (Data Carrier Detect)

DSR (Data Set Ready)

DTR (Data Terminal Ready)

RTS (Request to Send)

general specifications

hardware features

installing

keyswitch

returning processor to initial factory conditions

163

status indicators

troubleshooting

5/04 processors active modem-control lines

CTS (Clear to Send)

DCD (Data Carrier Detect)

DSR (Data Set Ready)

DTR (Data Terminal Ready)

RTS (Request to Send)

general specifications

hardware features

installing

keyswitch

returning processor to initial factory conditions

163

status indicators

troubleshooting

5/05 processors

Ethernet communication

241

general specifications

hardware features

94 ,

installing

keyswitch

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292 Index returning processor to initial factory conditions

163

status indicators

troubleshooting

A

address

AIC+ Advanced Interface Converter

mounting dimensions

ambient temperature rating, processor specification

application

Article 70B of the NFPA

Article 70E of the NFPA

ASCII communication

B

BASIC programming language

batteries, lithium

Code of Federal Regulations, 49 CFR

173.22a

DOT-E7052 provision

shipping when depleted

storing and handling

135

transportation

battery catalog number

175

installation

SLC 5/01 or SLC 5/02 processors

SLC 5/03 and later processors

139

Belden #9463 cable

226

Belden #9842 cable on the DH-485 network

195

wire/terminal connections

197

bit

block diagrams

Boolean operators

BOOTP configuring SLC 5/05

246 -

249

using the Rockwell Utility

248

branch

C

cable routes, planning

192

cables

1746-C7

1746-C9

Belden #9463

Belden #9842

replacement

certification power supplies

179

channel 0 pinout

204

chassis

13-slot modular mounting dimensions

date shown on

installation

19 ,

, 100

chassis interconnect cables, installation of

110

clock, real-time

SLC 5/03 processor

SLC 5/04 processors

SLC 5/05 processors

Common Power Source

communication protocols

ASCII

data highway plus

DF1 full-duplex

DF1 half-duplex

DF1 radio modem

DH-485

Ethernet

communication scan

contact protection diodes

RC network

surge suppressor

varistor

contacting Rockwell Automation for assistance

143

control networks

Allen-Bradley Remote I/O

ControlNet

DeviceNet

overview

remote I/O network

control profile

control program

controller definition

features

installation

overhead

selecting

spacing

specifications

troubleshooting

143

ControlNet Messaging module

ControlNet network

1747-KFC15 module

Publication 1747-UM011F-EN-P - May 2007

Index 293

1747-SCNR module

ControlNet scanner

counters definition

CPU (central processing unit), definition

CTS (Clear to Send)

D

Data Highway Plus communication protocol overview

223

typical configuration

using the SLC 5/04 processors

223

wiring the SLC 5/04 processors

226

data packets

data table

Data Table Access Module (DTAM) monitoring with

mounting dimensions

DCD (Data Carrier Detect)

DCE (Data Communication Equipment)

DeviceNet interface

238

, 269

DeviceNet network

237

1747-SDN module

237

1761-NET-DNI interface

238

, 269

length

239

DeviceNet Scanner

237

DF1 full-duplex protocol

DF1 half-duplex protocol

DF1 protocol full-duplex

half-duplex

modem overview

overview

DF1 Radio Modem protocol channel 0 driver

209

SLC 5/03 processor feature

SLC 5/04 processor feature

SLC 5/05 processor feature

DH+ network devices that use the

1784-KTXD card

DH-485 Interface Converters

1747-PIC interface

1747-UIC interface

DH-485 network description

183

devices that use the

1746-BAS module

1747-KE module

1747-UIC interface

1770-KF3 module

example system configuration

189

grounding and terminating

198

initialization

184

installation

195

planning considerations

191

protocol

184

DH-485/RS-232 Interface Module user’s manual

DHCP configuring SLC 5/05

249

definition

DIN rail

discrete I/O modules

download

DSR (Data Set Ready)

DTAM Micro operator interface mounting dimensions

DTAM Plus operator interface monitoring with

mounting dimensions

DTE (Data Terminal Equipment)

DTE controlled answer

DTE, definition

DTR (Data Terminal Ready)

DTR dialing

E

EEPROM

1 K User Words

4 K User Words

64 K User Words

EEPROM burning options

embedded responses

EMC Directive

emergency controller shutdown

Emergency-Stop Switches

EMI

enclosures environment

selecting

encoder definition

end device

Environmental Protection Agency (EPA)

137

equipment needed for installation

errors

Publication 1747-UM011F-EN-P - May 2007

294 Index

SLC 5/01 and SLC 5/02 processors

146

SLC 5/03, SLC 5/04, SLC 5/05 processors

152

while downloading an operating system

161

Ethernet advanced functions

250

messaging

242

processor performance

242

using the SLC 5/05 processors

241

European Union Directives

30 ,

executing mode

F

false

features

SLC 5/01 processors

SLC 5/02 processor

SLC 5/03 processor

SLC 5/04 processors

SLC 5/05 processors

FIFO (First-In-First-Out)

file

full-duplex

(point-to-point)

fuses, for power supply installation

troubleshooting tips

G

getting started quickly overview

procedures

Required Tools and Equipment

ground bus

grounding guidelines ground bus

overview

special considerations for DC applications using 1746-P3

H

half-duplex master protocol, A-B products that support

hard disk

280

hazardous environment component installation

selecting hardware components

heat dissipation, calculating for SLC 500 control system

265

heat, preventing excessive

high byte

280

housekeeping

280

humidity, processor specification

I/O devices, recommendations for wiring wires, bundle

117

I/O modules discrete

specialty

wiring

118

IBM AT connector pin assignment

input modules installing

maximum current

troubleshooting

watts

wiring

input scan

input states on power down

installation chassis

19 ,

100

chassis interconnect cables

110

getting started quickly

inspecting

lithium battery on SLC 5/01 or SLC 5/02 processors

lithium battery on SLC 5/03, SLC 5/04, and SLC 5/05 processors

memory modules

modules

power supplies

processors

typical SLC system

instruction

instruction set definition

interconnect cable installation

110

interface converter, 1747-PIC

isolated link coupler, 1747-AIC dimensions

installing

195

isolation transformers example calculation

power considerations

selecting

jumpers

I

J

Publication 1747-UM011F-EN-P - May 2007

Index 295

105

161

power supply

107

K

keyswitch clearing faults for the SLC 5/03, SLC

5/04, and SLC 5/05 processors

keyswitch location

SLC 5/03 processors

SLC 5/04 processors

SLC 5/05 processors

keyswitch positions for the SLC 5/03, SLC

5/04, and SLC 5/05 processors

PROG

REM

RUN

L

ladder logic

least significant bit (LSB)

LIFO (Last-In-First-Out)

line voltage variations, excessive

link coupler mounting dimensions

lithium batteries

Code of Federal Regulations, 49 CFR

173.22a

disposal

137

DOT-E7052 provision

installing on SLC 5/01 or SLC 5/02 processors

installing on SLC 5/03, SLC 5/04, and SLC

5/05 processors

139

shipping when depleted

storing and handling

135

transportation

local I/O capacity, processor logic

282

specification

low byte

282

M

machine motion, preventing

maintenance, preventive

master control relay (MCR) definition

282

using

master devices, DF1 half-duplex protocol

memory backup options, processor specification

memory modules for SLC 5/01 and 5/02 processors

for SLC 5/03, SLC 5/04, and SLC 5/05 processors

installation

mnemonic

modem definition

modems for RS232

modes

modules, installation

104

motor starters (bulletin 509) surge suppressors

motor starters (bulletin 709) surge suppressors

mounting chassis

100

mounting dimensions

10-slot chassis

13-slot chassis

4-slot chassis

7-slot chassis

AIC+ Advanced Interface Converter

Data Table Access Module

DeviceNet interface

DTAM Micro

DTAM Plus

Ethernet interface

link coupler

MSG instruction

N

National Fire Protection Association

(NFPA)

negative logic

283

noise generators

noise immunity, processor specification

noise, excessive

normally closed

283

normally open

283

O

offline

offset

Publication 1747-UM011F-EN-P - May 2007

296 Index off-state leakage current

one shot

online

operator interface selecting

DTAM

DTAM Plus

PanelView 550

personal computer

output contact protection, selecting

output modules installing

maximum current

troubleshooting

watts

wiring

output scan

overview of the modular control system

P

PanelView 550 Operator Terminal monitoring with

PC connector pin assignment

PCCC definition

performance

Ethernet processor

242

personal computer, programming with

pinout, channel 0

204

planning considerations for a network

191

power considerations common power source

input states on power down

line conditions, other types of

loss of power source

undervoltage operation

power source, loss of

power supplies installing

21 ,

setting jumpers

107

power supply fuse replacing

power supply loading worksheet

40 ,

234

power, removing

144

preparing your wiring layout

116

preventing excessive heat

preventive maintenance

processor installation

24 ,

processor files

processor hardware features

SLC 5/01

SLC 5/02

SLC 5/03

SLC 5/04

SLC 5/05

94 ,

processor specifications ambient temperature rating

humidity

LED indicators

local I/O capacity

maximum chassis/slots

memory back-up options

noise immunity

program memory

program scan holdup time after loss of power

remote I/O capacity

standard RAM

PROG, keyswitch position for the SLC

5/03 and SLC 5/04 processors

97 ,

175

program alteration

program file definition

program memory, processor specification

program mode

program scan definition

program scan hold-up time after loss of power

programmable controller grounding and wiring guidelines

programming device

pulses transient

Q

quick start for experienced users

R

RAM, power back-up

SLC 5/01 or SLC 5/02 processors

SLC 5/03, SLC 5/04, and SLC 5/05 processors

139

RAM, processor specification

RC network

Publication 1747-UM011F-EN-P - May 2007

Index 297 read

related documentation

relay

relay logic

relays, surge suppressors for

REM, keyswitch position for the SLC 5/03,

SLC 5/04, and SLC 5/05 processors

remote I/O capacity, processor specification

remote I/O network

235

remote I/O passthru

236

removable terminal blocks (RTB)

installing

removing

using

removing power from the SLC 500 control system

144

replacement hardware cables and connectors

171

other items

173

terminal blocks

173

replacing a fuse on the power supply

required tools and equipment

reserved bit

restore

retainer clips replacement kit

174

replacing on modules

140

retentive data

RS-232 communication connectors

DCE pinout

DF1 protocol

DTE pinout

SLC 500 devices that support

RS-232 connector pin assignments

1746-BAS module to a modem

218

to DTE

219

1747-KE module to a modem

217

to DTE

218

2760-RB module to a modem

219

to DTE

220

IBM AT to an SLC 5/03 processor

PC to a modem

PLC-5 processor to a modem

220

to DTE

221

SLC 5/03 processor to a modem

216

to a PC (with cable 1747-CP3)

217

to DTE

216

RS-232 devices

1746-BAS module

1747-KE module

RS-232, definition

RTB

121

RTS (Request to Send)

run mode

RUN, keyswitch position for SLC 5/03,

SLC 5/04, and SLC 5/05 rung

processors

S

safety considerations disconnecting main power

master control relay circuits, periodic tests of

power distribution

safety circuits

save

SCADA applications

203

scan

scan time

selecting contact protection

discrete I/O modules

enclosures

isolation transformers

memory modules for SLC 5/03, SLC 5/04, and SLC 5/05 processors

power supply

processors

SLC 5/01 and SLC 5/02 memory modules

speciality I/O modules

surge suppressors

sinking

113 ,

sinking and sourcing

113

contact output circuits

114

sinking device with sourcing input module circuit

115

sinking device with sourcing output module circuit

115

solidstate DC I/O circuits

114

sourcing device with sinking input module

114

sourcing device with sinking output module circuit

115

Publication 1747-UM011F-EN-P - May 2007

298 Index slave devices, DF1 half-duplex protocol

SLC 500 programmable controllers general specifications

installing

selecting a memory module

44 ,

selecting a processor

selecting discrete I/O modules

selecting enclosures

selecting isloation transformers

selecting speciality I/O modules

special considerations

troubleshooting

143

SLC processor compatible cables

SLC processor compatible interfaces

sourcing

288

spacing your controllers

specialty I/O modules

specifications processors ambient temperature rating

clock/calendar accuracy

humidity

LED indicators

local I/O capacity

maximum chassis/slots

memory back-up options

noise immunity

program memory

program scan hold-up time after loss of power

remote I/O capacity

standard RAM

starting up your control system

123

disconnect motion-causing devices

enter and test your program

131

inspect your installation

test your inputs

127

test your outputs

128

start-up instructions

status

288

surge suppression circuits

surge suppressors for motor starters

for relays

system configuration, example

189

system test general specifications

177

T

terminal

testing inputs

outputs

program

throughput

tools needed for installation

transistor output transient pulses

troubleshooting input modules

output modules

SLC 5/01 processor

SLC 5/02 processors

SLC 5/03 processor

SLC 5/03 processors errors while downloading an operating system

161

SLC 5/04 processors

SLC 5/05 processors