1
Chapter
3
Installation and Wiring
This chapter contains the information necessary to:
• select the baud rate
• insert the scanner into the SLC chassis
• wire the RIO link
• power up the scanner
Compliance to European
Union Directives
If this product has the CE mark, it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.
EMC Directive
This product is 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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3-2 Installation and Wiring
Baud Rate Selection
Below are supported baud rates and switch positions:
Baud Rate
57.6K baud
115.2K baud
230.4K baud
230.4K baud
DIP Switch Position
Switch 1
on on off off
Switch 2
on off on off
The figure below shows the location of the DIP switches on the scanner. Also, the DIP switch settings are shown for each baud rate.
IMPORTANT
For proper RIO link system operation, all devices must be configured for the same baud rate.
Baud Rate
DIP Switch
57.6K baud 115.2K baud
230.4K baud 230.4K baud
Scanner Installation
Installation procedures for this module are the same as for any other discrete I/O or specialty module. Refer to the illustration on page 2-4 to identify chassis and module components listed in the procedures below.
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Installation and Wiring 3-3
ATTENTION
Disconnect system power before attempting to install, remove, or wire the scanner.
IMPORTANT
Make sure you have set the DIP switches properly before installing the scanner.
IMPORTANT
Before installation, ensure that your modular SLC power supply has adequate reserve current capacity.
The scanner requires 600 mA @ 5V dc.
Insertion
1. Disconnect power.
2. Align the full-sized circuit board with the chassis card guides.
The first slot (slot 0) of the first rack is reserved for the SLC 500 processor.
3. Slide the module into the chassis until the top and bottom latches catch.
4. Attach the RIO link cable to the connector on the front of the module, behind the door. Ground the cable’s shield wire to a chassis mounting bracket. See the RIO link wiring illustration on page 2-4.
5. Insert the cable tie in the slots.
6. Route the cable down and away from module, securing it with the cable tie.
7. Cover all unused slots with the Card Slot Filler, Catalog Number
1746-N2.
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3-4 Installation and Wiring
Publication 1747-UM013B-EN-P - January 2005
Module Release
Card Guide
Cable Tie
Removal
1. Disconnect power.
2. Remove all cabling.
3. Press the releases at the top and bottom of the module and slide the module out of the chassis slot.
4. Cover all unused slots with the Card Slot Filler, Catalog Number
1746-N2.
RIO Link Wiring
Installation and Wiring 3-5
The scanner is connected to other devices on the RIO link in a daisy chain (serial) configuration. There are no restrictions governing the space between each device, provided the maximum cable distance
(Belden 9463) is not exceeded.
A 1/2 watt terminating resistor (included with the module) must be attached across line 1 and line 2 of the connectors at each end
(scanner and last physical device) of the RIO link. The value of the resistor depends on the baud rate and extended node capability, as shown in the table that follows.
IMPORTANT
To use extended node, all devices on the RIO link must support it. Refer to each device’s user manual.
Using Extended
Node Capability
Not Using Extended
Node Capability
Baud Rate Maximum Cable
Distance (Belden 9463)
Resistor Size
57.6K baud
115.2K baud
3048 meters (10,000 feet) 82 ohm 1/2 Watt
1524 meters (5000 feet)
Brown - Green -
Brown - Gold
230.4K baud 762 meters (2500 feet)
57.6K baud
115.2K baud
3048 meters (10,000 feet) 150 ohm 1/2 Watt
1524 meters (5000 feet)
Brown - Green -
Brown - Gold
230.4K baud 762 meters (2500 feet) 82 ohm 1/2 Watt Gray
- Red - Black - Gold
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3-6 Installation and Wiring
RIO Scanner
Terminating
Resistor Last Physical
Device End
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RIO Link
Connector
LINE 1 _______
SHIELD _____
LINE 2 _______
Chassis
Mounting
Bracket
RIO Link
Connector
Terminating
Resistor
Scanner End
Ring Lug
Line 1 ± Blue
Shield ± Shield
Line 2 ± Clear
Shield Drain Wire
For New Installations
Using Series B
Scanners
Shield Drain Wire
For Series A
Scanner
Retrofits
New Installations
To ensure a proper earth ground of the cable shield, follow these steps:
1. While the RIO link connector is plugged into the scanner and lines 1 and 2 are connected, strip the cable back to expose enough shield drain wire to reach a chassis mounting bracket.
2. Attach the ring terminal lug (supplied) to the end of the shield drain wire.
3. Attach the ring terminal lug to the SLC chassis mounting bracket.
Note that for new installations the middle (shield) terminal is not used when connecting to the scanner.
Start Up
Installation and Wiring 3-7
IMPORTANT
The RIO cable shield must be grounded at the scanner end only.
For Series A Scanner Retrofits
To eliminate the need to strip the cable back, follow these steps:
1. Attach the shield wire and a short piece of #20 AWG wire
(dotted line) to the shield lug of the RIO Link Connector.
2. Attach the other end of the #20 AWG wire to the ring terminal lug.
3. Attach the ring terminal lug to a chassis mounting bracket.
IMPORTANT
The RIO cable shield must be grounded at the scanner end only. Ensure that the unshielded portion of the link communication wire (blue and clear) is as short as possible.
The following steps will assist you in the start up of your RIO system.
1. Apply power to your SLC processor. If you powered down with the SLC processor in Program, Test, or Fault mode, you will have to place your processor in Run mode.
When power is applied to your scanner it requires about three seconds to complete its power up diagnostics. During this time, the FAULT and COMM LEDs cycle on and off. After the diagnostics are complete and the SLC processor is in the Run mode, the scanner’s LEDs are in the following states:
• The FAULT LED is off.
• The COMM LED is green.
IMPORTANT
The above states are true only if the scanner is configured properly and all RIO link devices are communicating.
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3-8 Installation and Wiring
Scanner Operation
2. Make sure you have configured your SLC processor and downloaded an application program. (Refer to chapter 4.)
3. Make sure power is applied to all devices on the RIO link.
Below is a description of the scanner’s operation at power up, run mode, and when changing from run mode to program or test mode.
At Power Up
At power up, the scanner’s communication LED (green LED) is off until the SLC is changed to Run or Test mode.
In Run Mode
During normal scanner operation (SLC in Run mode), the scanner’s
LEDs illuminate as shown below:
SCANNER
COMM
FAULT
FAULT LED is off.
COMM LED is green.
Publication 1747-UM013B-EN-P - January 2005
When Changing From Run Mode
When the SLC processor is changed from Run mode, to Program or
Test mode the following occurs:
• scanner’s COMM LED remains green.
• the scanner continues to read its input devices and send output data to its RIO adapters.
• the scanner instructs adapters to either clear all outputs or hold them in their last state (depending on their configuration). Refer to the user manual included with each RIO device for specific information relating to the Hold Last State setting.
Status LEDs
Installation and Wiring 3-9
IMPORTANT
If you are using Block Transfer (BT) functionality, BTs may not function on adapters in Hold Last State settings. Refer to each device’s user manual for information on BTs and Hold
Last State settings.
The scanner has two LEDs that indicate its operating status, FAULT and COMM. The FAULT LED indicates the scanner’s overall status. The
COMM LED indicates the RIO link communication status.
The FAULT LED is off whenever the scanner is configured and operating properly. The COMM LED state is valid only when the
FAULT LED is off.
The table below provides the scanner and communication status as indicated by the FAULT and COMM LEDs.
FAULT LED COMM LED Status Information
Flashing Red Not Applicable Scanner configuration error
Red
No RIO link communication attempted
Duplicate scanner detected on RIO link
Not Applicable Major fault on scanner
Off
Off
Red
Off
No RIO link communication attempted
Hardware fault detected
Scanner is operating properly
Off
Off
Off
Green
Scanner is offline (no RIO link communication attempted)
Scanner is operating properly
Scanner is online (active communication established with all devices)
Flashing Green Scanner is operation properly
Flashing Red
At least one configured RIO link device is not communicating
Scanner is operating properly
None of the configured RIO link devices are communicating
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3-10 Installation and Wiring
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