Block should only be wired by same function code: Module 2,41,31 Block 22100 FC 13 S25 wired from Module 2,41,31 Block 22101 FC 123
There appears to be a block connected to an input that fails to follow the documented rules for the connections.
This message shows a potential error in the system configuration, although most such errors prove to be harmless. It should be reviewed and hidden, unless it shows an issue that should be addressed.
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