Rockwell Automation Allen-Bradley 1734-IB8S, User Manual

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Rockwell Automation Publication 1734-UM013J-EN-P - July 2014 141
Replacing POINT Guard I/O Modules Chapter 8
3. Click Reset.
Replacing a Module in a
GuardLogix System on an
EtherNet/IP Network If you are relying on a portion of the CIP Safety system to maintain SIL 3
behavior during module replacement and functional testing, you must not use
the Configure Always feature. Go to
Replacement with ‘Configure Only When
No Safety Signature Exists’ Enabled on page 141 .
If you are not relying on the entire routable CIP Safety control system to
maintain SIL 3/PLe during the replacement and functional testing of a module,
you can use the Configure Always feature. Go to
Replacement with ‘Configure
Always’ Enabled on page 145 .
Module replacement is configured on the Safety tab of the GuardLogix
controller.
Replacement with ‘Configure Only When No Safety Signature Exists’
Enabled
When a module is replaced, the configuration will be downloaded from the
safety controller if the DeviceID of the new module matches the original. The
DeviceID is a combination of the node/IP address and the safety network
number (SNN) and is updated whenever the SNN is set.
If the project is configured as ‘Configure Only When No Safety Signature Exists’,
follow the appropriate instructions in
Table 11 to replace a POINT Guard I/O
module based on your scenario. Once you have completed the steps in the
scenario correctly, the DeviceID will match the original, enabling the safety