Installation Instructions
Remote I/O Adapter Module
(Catalog Number 1747-ASB)
Inside ................................................................................................page
Hazardous Location Considerations .........................................................2
Environnements dangereux ......................................................................2
1747-ASB Module Overview ....................................................................3
Required Tools and Equipment .................................................................4
Determining System Power Requirements...............................................4
Slot Addressing.........................................................................................5
Configuring the Module ............................................................................6
Installing the Module..............................................................................10
Connecting RIO Link Devices ..................................................................11
Wiring a Processor Restart Lockout Switch ...........................................14
Installing I/O Module Addressing Labels ...............................................15
Performing System Start-up ...................................................................17
Checking Operation.................................................................................17
Specifications .........................................................................................18
For More Information ..............................................................................19
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2 Remote I/O Adapter Module
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. The following WARNING statement applies to use in hazardous locations.
WARNING
!
EXPLOSION HAZARD
•
Substitution of components may impair suitability for Class
I, Division 2.
•
Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
•
Do not connect or disconnect components unless power has been switched off or the area is known to be non-hazardous.
•
All wiring must comply with N.E.C. article 501-4(b).
Environnements dangereux
Cet équipement est conçu pour être utilisé dans des environnements de Classe I,
Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante s’applique à une utilisation dans des environnements dangereux.
AVERTISSEMENT
!
DANGER D’EXPLOSION
•
La substitution de composants peut rendre cet équipement impropre à une utilisation en environnement de Classe I,
Division 2.
•
Ne pas remplacer de composants ou déconnecter l'équipement sans s'être assuré que l'alimentation est coupée.
•
Ne pas connecter ou déconnecter des composants sans s'être assuré que l'alimentation est coupée.
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Remote I/O Adapter Module 3
1747-ASB Module Overview
The 1747-ASB module is an SLC 500 single-slot, RIO communication link module. It occupies the first slot (slot 0) of a 1746 remote chassis, where the SLC processor normally resides.
The 1747-ASB module is an adapter, or slave, on the RIO link, and the master of the remote chassis and remote expansion chassis in which it is installed. Remote
expansion chassis are optional. The module acts as a gateway between the scanner and the I/O modules residing in the remote chassis and remote expansion chassis.
It maps the image of the I/O modules in its remote chassis and remote expansion chassis directly to the SLC or PLC processor image.
Output data is sent from the scanner of either the SLC or PLC local chassis to the
1747-ASB module across the RIO link. This data is automatically transferred to the output modules across the chassis backplane by the 1747-ASB module. Inputs from the input modules are collected via the backplane by the 1747-ASB module and sent back to the scanner across the RIO link. No user programming of the 1747-ASB module is necessary.
1747-ASB Module
Supervisory SLC (or PLC)
Remote Chassis
1747-ASB Module
Remote Expansion Chassis
RIO Link
Outputs to
Modules
Inputs from
Modules
Remote Chassis
1747-ASB Module
Remote Chassis
Remote Expansion Chassis
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4 Remote I/O Adapter Module
Hardware Features
COMM LED
(Green)
ADAPTER
COMM F AUL T
ST A TUS
Status
Display
RIO Link and
Processor
Restart
Lockout
Connector
FAULT LED
(Red)
(MSB)
LOGICAL
RACK
(LSB)
LINE 1
SHLD
LINE 2
NC
IN
RET
BAUD
RA TE
PRI/COMP
RSV
(MSB)
IMAGE
SIZE
(LSB)
1747-ASB
HLS
PRL
RESP
LAST CHA
ADDR
MODE
SP MODE
KEY
Cable Tie Slots
Door
Label
DIP Switches
Manufacturing
Test Plug
Self-Locking Tab
Required Tools and Equipment
Have the following tools and equipment ready:
• medium blade screwdriver
•
(2) 1/2 watt terminating resistors (See page 18 for correct size.)
• an adequate length of RIO communication cable (Belden™ 9463) for your
specific application. (See page 18 for maximum cable distances.)
Determining System Power Requirements
Review the power requirements of your system to ensure that the chassis supports placement of the 1747-ASB module. The adapter consumes 600 mA at 5V dc. For a detailed list of device load currents, refer to the SLC 500 Fixed Hardware Style
Installation and Operation Manual, publication number 1747-6.21; the SLC 500
Modular Hardware Style User Manual, publication number 1747-UM011, or the appropriate Technical Data sheet.
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Remote I/O Adapter Module 5
Slot Addressing
Slot Numbering
The 1747-ASB module is capable of controlling 30 slots. When expansion chassis are used, the 1747-ASB module treats all of the I/O modules as if they are installed in a single chassis.
The remote chassis and remote expansion chassis slots are numbered from 0 to 30.
The 1747-ASB module must reside in slot 0. Slots numbered 31 and above cannot be used.
Installing modules in slot 31 or above results in a module error.
IMPORTANT
Addressing I/O Modules
SLC and PLC processors address the I/O modules residing in the chassis by logical rack and logical group. Slot addressing refers to how each chassis slot is assigned a specific amount of the 1747-ASB module image. The amount depends on which type of slot addressing you choose; 2-slot, 1-slot, and 1/2-slot addressing is available, as shown below.
IMPORTANT
Due to SLC and PLC addressing differences, when the 1747-ASB module is used with an SLC processor, the image bit numbers are
0 to 7, 8 to 15 decimal. When the 1747-ASB module is used with a PLC processor, the image bit numbers are 0 to 7, 10 to 17 octal.
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6 Remote I/O Adapter Module
2-Slot
Addressing
Two slots are addressed as one logical group.
Input Image Output Image
Slot Slot
Slot Slot
1-Slot
Addressing
Input Image
One slot is addressed as one logical group.
Output Image
1/2-Slot
Addressing
Slot
Input Image
Slot
One slot is addressed as two logical groups.
Output Image
Slot Slot
For more information on addressing, refer to the Remote I/O Adapter Module User
Manual, publication number 1747-6.13.
Configuring the Module
The 1747-ASB module parameters are configured by three DIP switches, shown below.
DIP Switches
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Remote I/O Adapter Module 7
Configuration Parameters
The DIP switches allow you to configure the following items:
•
Starting Logical Rack Number (Logical Rack) - is the 1747-ASB module’s starting logical rack number in the scanner’s image.
•
Starting Logical Group Number (Logical Group) - is the 1747-ASB module’s starting logical group number within the scanner’s image.
•
Baud Rate (Baud Rate) - is the 1747-ASB module’s RIO link communication rate. The baud rate must be the same for all adapters on the RIO link.
•
Primary/Complementary SLC Chassis (PRI/COMP) - determines whether the 1747-ASB module appears to the scanner as a primary or complementary chassis.
•
Adapter Image Size (IMAGE SIZE) - indicates the I/O image size to be reserved for the adapter. It can be any size between 2 and 32 groups in
2 logical group increments.
•
Hold Last State (HLS) - determines whether the discrete output modules are held in their last state when:
– RIO link communication with the 1747-ASB module is lost.
– The scanner inhibits the 1747-ASB module.
– The scanner sends Reset, Adapter Decide commands to the 1747-ASB module.
•
Processor Restart Lockout (PRL) - determines whether the 1747-ASB module automatically resumes RIO link communications if communication is lost and then restored.
•
Link Response Time (RESP) - selects restricted or unrestricted RIO link response time.
•
Last Chassis/PLC-3 Backup (LAST CHA) - When the 1747-ASB module is used with a PLC-2 or PLC-5, this switch indicates to the scanner that the
1747-ASB module is the last adapter mapped into the 1747-ASB module’s highest logical rack. When using a PLC-3 processor, the switch determines whether the 1747-ASB module supports the PLC-3 backup function.
•
Addressing Mode (ADDR MODE) - determines the 1747-ASB module’s remote chassis and remote expansion chassis addressing mode. 2-slot,
1-slot, and 1/2-slot are available.
•
Specialty I/O Mode (SP MODE) - determines whether the 1747-ASB module discretely maps or block transfer maps specialty I/O modules in its remote chassis and remote expansion chassis.
•
I/O Module Keying (KEY) - determines if the 1747-ASB module saves its current I/O module and DIP switch configuration to its non-volatile memory, or if the 1747-ASB module compares the current I/O module and DIP switch configuration to the one saved in its non-volatile memory.
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8 Remote I/O Adapter Module
Dip Switch Settings
SW1
Logical Rack Number Bit 5
(Most Significant Bit)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0
(Least Significant Bit)
Local Rack Number
ON = 0 OFF = 1
7
ON
ON
OFF
OFF
Local Group Number
8
ON
Group
0 (default)
OFF
ON
OFF
2
4
6
IMPORTANT
The ASB module can be configured as any logical rack number from 0 to 77 octal. Rack numbers are determined by setting switches SW1-1 through SW1-6, with ON equivalent to logical 0 and OFF equivalent to logical 1. Then, interpret this 6-bit binary value as octal with SW1-6 as the least significant bit (LSB). For example:
SW1-1
ON
(0)
SW1-2
OFF
(1)
SW1-3
ON
(0)
SW1-4
ON
(0)
SW1-5
ON
(0)
SW1-6
OFF
(1)
21 (octal)
17 (decimal)
Rack
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Remote I/O Adapter Module 9
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
5
ON
ON
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0
SW2-1
ON
ON
OFF
OFF
Baud Rate
SW2-2
ON
OFF
ON
OFF
Baud Rate
57.6K (default)
115.2K
230.4K
INVALID
Primary/Complementary Chassis
ON Primary
OFF Complementary
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
6
ON
ON
1747-ASB Module Image Size
7
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
8
ON
OFF
22
24
26
28
14
16
18
20
30
32
Groups
2
4
10
12
6
8
IMPORTANT
If you are not using complementary I/O, you must set SW2-3 to the OFF, or complementary, position.
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10 Remote I/O Adapter Module
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
Link Response
OFF Unrestricted
Addressing Mode
ON ON
ON OFF
Invalid
1-slot Addressing (default)
OFF
OFF
ON
OFF
1/2-slot Addressing
2-slot Addressing
Hold Last State
OFF Do not Hold Last State (default)
Processor Restart Lockout
(after lost communications)
OFF Processor Lockout
Last Chassis
ON
OFF
Not Last Chassis (default)
Last Chassis
Specialty I/O Mode
OFF Block Transfer
I/O Module Keying
OFF Check Mode
Installing the Module
ATTENTION
!
Disconnect power before attempting to install or remove the module.
1. Make sure system power is off.
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Remote I/O Adapter Module 11
2. Install the module in slot 0 of the remote chassis by aligning the circuit board with the chassis card guide.
The 1747-ASB module must be installed only in slot 0 (the left slot) of the remote chassis. Do not install the 1747-ASB module in the remote expansion chassis.
3. Slide the module into the chassis until the top and bottom tabs lock into place. To remove the module, press and hold the release located on each self-locking tab and slide the module out.
4. Cover all unused slots with the Card Slot Filler, Catalog Number 1746-N2.
Card Guide
Module Release
Connecting RIO Link Devices
Link Wiring
The modules are connected in a daisy chain configuration on any RIO link. A daisy chain network is formed by connecting network devices together in a serial manner using Belden 9463 cable. Belden 9463 cable is the only approved cable for
Allen-Bradley RIO links.
The total number of adapters allowed on the RIO link is:
•
32 if the scanner and all adapters on the RIO link have extended node capability
•
16 if the scanner or any adapter does not have extended node capability
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12 Remote I/O Adapter Module
There are no restrictions governing the spacing between the devices, as long as the
maximum cable distance is not exceeded. Refer to the table on page 18 for baud
rate and maximum cable distances.
IMPORTANT
No two devices can be connected to the same point on the link.
An example of correct and incorrect link wiring is shown below.
Correct Link Wiring
1747-ASB Module
To Scanner
1747-ASB Module
1747-ASB Module
Incorrect Link Wiring
To Scanner
1747-ASB Module
1747-ASB Module
1747-ASB Module
1747-ASB Module
This is an incorrect connection!
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Remote I/O Adapter Module 13
Link Termination
A 6-pin keyed connector provides a quick connection to the RIO link and processor restart lockout switch. A user-supplied terminating resistor must be attached across lines one and two of the connector at each end of the RIO link. The size of the resistor depends on the baud rate and whether the scanner and all adapters have extended node capability, as shown in the table below. The cable shield must be connected to chassis ground only at one end of the RIO link.
Using Extended Node
Capability
Baud Rate
All Baud Rates
Resistor size
82
Ω
1/2 Watt
Not Using Extended
Node Capability
57.6K baud
115.2K baud
230.4K baud
150
Ω
1/2 Watt
150
Ω
1/2 Watt
82
Ω
1/2 Watt
IMPORTANT
If the signal integrity on the RIO link is compromised by environmental noise, improper termination, and/or improper cable installation, the 1747-ASB module scan rate drops. This is indicated by a pronounced flickering of the status display.
To Scanner’s
Connector
Chassis Ground
Terminating Resistor
Line 1 (Blue Wire)
SHLD (Shield wire)
LINE 2 (Clear wire)
NC (No Connect)
IN
RET
Blue
Shield
Clear
Terminating Resistor
IMPORTANT
Do not connect anything to the NC (No Connect) terminal.
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14 Remote I/O Adapter Module
Wiring a Processor Restart Lockout Switch
When processor restart lockout is enabled (SW3-2) and communications are restored, the 1747-ASB module does not respond to any type of communication, or communication commands until terminals IN and RET are momentarily shorted together. This occurs while the RIO scanner is attempting to communicate with the
1747-ASB module.
ATTENTION
Cycling power on any 1747-ASB module chassis removes the processor restart lockout condition by re-initializing the
1747-ASB module.
!
Use a momentary switch (Class 1, Division 2) to short terminals IN and RET together. The processor restart lockout is removed as soon as the switch toggles back to the open circuit position.
Do not connect anything to the NC (No Connect) terminal.
IMPORTANT
Momentary Switch
LINE 1 (Blue wire)
SHLD (Shield wire)
LINE 2 (Clear wire)
NC (No Connect)
IN
RET
14 - 24 gauge wire
(maximum 5 feet)
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Remote I/O Adapter Module 15
Installing I/O Module Addressing Labels
Attach the Remote PLC or Remote SLC label to the outside bottom of each I/O module in your 1747-ASB chassis, as shown below. Fill out each label completely.
INPUT INPUT
0 - 7 10 - 17
Rack Group(s)
I:
BT
O:
Discrete
Remote PLC System
Remote PLC® Label
0 - 7
SN Slot
SN Word(s)
8 - 15
BT Discrete
Remote SLC System
Remote SLC Label
0 - 7 10 - 17
Rack Group(s)
I:
O:
BT
Discrete
Remote PLC System
0 - 7
SN Slot
SN Word(s)
BT
8 - 15
Discrete
Remote SLC System
Using a SLC as a Master
If you are using a SLC processor as a master, each I/O module is addressed by the physical slot number of the 1747-SN scanner and the word that the I/O module uses in the scanner image. Data is transferred on the network by logical rack and logical group number. Refer to Remote I/O Scanner User Manual, publication number 1747-6.6, for more information on the 1747-SN.
Using a PLC as a Master
If you are using a PLC processor as a master, each I/O module is addressed by logical rack and logical group, regardless of what physical slot it is in. If using a
PLC processor as a master, attach octal labels.
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16 Remote I/O Adapter Module
Installing Octal Labels
The octal filter and door label kits must be used when working with a PLC processor as a master. Adhere the octal labels over the existing decimal labels, as shown below. Contact your local Allen-Bradley distributor if you need to order additional label kits.
Octal Filter Label
INPUT
Decimal Filter Label
OCTAL
Octal Door Label
1746-XXXX
Decimal Door Label
1746-XXXX (OCTAL)
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Remote I/O Adapter Module 17
Performing System Start-up
ATTENTION
Never insert, remove, or wire modules with power applied to the chassis or devices wired to the module.
!
Follow the steps below:
1. Cycle power one last time in save mode (SW3-8 ON).
2. Remove power from the system.
3. Remove the 1747-ASB module and set SW3-8 to the OFF position (check mode).
4. Replace the 1747-ASB module in slot 0.
5. Apply power to your system.
Checking Operation
During normal operation (PLC or SLC in Run mode), the 1747-ASB module appears as shown below.
ADAPTER
Green COMM
LED is on.
Status display indicates a run condition.
Red FAULT
LED is off.
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18 Remote I/O Adapter Module
Specifications
Adapter Operating Specifications
Backplane Current Consumption
Operating Temperature
Storage Temperature
Humidity
Noise Immunity
Vibration
Shock (operating)
Agency Certification
(when product or packaging is marked)
375 mA at 5V dc
32°F to 140°F
(0°C to 60°C)
-40°F to +185°F
(-40°C to +85°C)
5% to 95% non-condensing
NEMA standard ICS 2-230
Displacement: 0.015 inch, peak-to-peak at 5-57 Hz
Acceleration: 2.5Gs at 57-2000 Hz
30Gs
•
UL Listed
•
CSA certified
•
Class I, Division 2 Groups A, B, C, D
•
CE compliant for all applicable directives
•
Marine Certified
•
C-tick marked for all applicable acts
Baud Rate Determination of Maximum Cable Length and Terminating
Resistor Size
Baud Rate Resistor Size
Using Extended
Node Capability
Not Using
Extended Node
Capability
57.6K baud
115.2K baud
230.4K baud
57.6K baud
115.2K baud
230.4K baud
Maximum Cable Distance
(Belden 9463)
3048 meters (10,000 feet)
1524 meters (5,000 feet)
762 meters (2,500 feet)
3048 meters (10,000 feet)
1524 meters (5,000 feet)
762 meters (2,500 feet)
82
Ω
1/2 Watt
150
Ω
1/2 Watt
82
Ω
1/2 Watt
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Remote I/O Adapter Module 19
For More Information
For Refer to this Document
A more detailed description on how to install and use your Remote I/O Adapter Module.
Remote I/O Adapter Module
User Manual
A more detailed description on how to install and use your Remote I/O Scanner Module (1747-SN).
Remote I/O Scanner Module
User Manual
A more detailed description on how to install and use your SLC 500™ Modular Hardware Style Control
System.
SLC 500™ Modular Hardware
Style User Manual
Pub. No.
1747-6.13
1747-6.6
1747-UM011
A more detailed description on how to install and use your SLC 500™ Fixed Hardware Style Control
System.
SLC 500™ Fixed Hardware
Style Installation and Operation
Manual
1747-6.21
If you would like a manual, you can:
• download a free electronic version from the internet:
www.theautomationbookstore.com
• purchase a printed manual by:
– contacting your local distributor or Rockwell Automation representative
– visiting www.theautomationbookstore.com and placing your order
– calling 1.800.963.9548 (USA/Canada) or 001.330.725.1574 (Outside
USA/Canada)
Publication 1747-IN014C-EN-P - January 2003
Rockwell Automation Support
Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running.
United States
Outside United
States
1.440.646.3223
Monday – Friday, 8am – 5pm EST
Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning, it may need to be returned.
United States
Outside United
States
Contact your distributor. You must provide a Customer Support case number
(see phone number above to obtain one) to your distributor in order to complete the return process.
Please contact your local Rockwell Automation representative for return procedure.
Rockwell Automation, Allen-Bradley, SLC 500, PLC, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Publication 1747-IN014C-EN-P - January 2003
Supersedes Publication 1747-IN014B-EN-P - May 2001
PN 40071-134-01(3)
Copyright © 2007 Rockwell Automation, Inc. All rights reserved. Printed in Singapore.
