Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 163
Replacing POINT Guard I/O Modules Chapter 8
If the configuration is correct based on the original DNT file, the SNN
and configuration signature now match that of the original. If you are
already connected to the controller, a connection is made. The controller
does not need to be taken out of Run mode to download to the
replacement module.
If you download this configuration to a temporary setup, place the module
on the network and it automatically connects to the controller.
If the configuration downloaded to the module was not from the original
DNT file, the configuration signature does not match the original. Even if
you recreate the same parameters in a new DNT file, the time and date
portions of the signature are different so the connection to the controller is
not made. If this situation occurs, click the Safety Connection tab for the
controller that prompted you that the configuration signature is different
and provides you with the option to match the new configuration
signature. However, you must first revalidate the safety system because it is
not using the original DNT file.
7. Click Yes.
This selection takes the controller out of Run mode and prompts you to
download the changes.
8. Click Yes to download the new connection configuration to the
SmartGuard controller.
After the download is complete, place the controller back in Run mode
and the connection to the replacement module is established.
9. Follow your company-prescribed procedures to functionally test the
replaced I/O module and system and to authorize the system for use.
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