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Start up, For series a scanner retrofits -7, Start up -7 – Rockwell Automation 1747-SN Remote I/O Scanner User Manual

Page 41: For series a scanner retrofits

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Publication 1747-UM013B-EN-P - January 2005

Installation and Wiring 3-7

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.

Start Up

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 RIO cable shield must be grounded at the
scanner end only.

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.

IMPORTANT

The above states are true only if the scanner is
configured properly and all RIO link devices
are communicating.