XOR output forced to track NOT input Module 1,01,02 Block 1001 -- one input constant one to FC 101 Module 1,01,02 Block 1003

This block is acting like a NOT block, because one of its inputs is constant one. It may not be clear that the logic has been disabled.

The message is intended to encourage documentation of forced logic, or removal of unused logic.

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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