Allen-Bradley Compact GuardLogix 5370 User Manual page 121

If the project is configured for 'Configure Always' , follow the appropriate steps
to replace a safety I/O device.
1. Remove the old I/O device and install the new device.
a. If the device is in out-of-box condition, go to step 6.
No action is needed for the Compact GuardLogix controller to take
ownership of the device.
b. If an SNN mismatch error occurs, go to the next step to reset the
device to out-of-box condition.
2. Right-click your safety I/O device and choose Properties.
3. Click the Safety tab.
4. Click Reset Ownership.
5. Click OK.
6. Follow your company-prescribed procedures to functionally test the
replaced I/O device and system and to authorize the system for use.
Rockwell Automation Publication 1769-UM022C-EN-P - June 2018
Add, Configure, Monitor, and Replace CIP Safety I/O Devices Chapter 7
121