Rung block spec is wired but unused [ERROR 124]

Rung block spec is wired but unused [ERROR 124]

Rung block Module 1,01,02 Block 1001 S3 is wired (block 1234) but unused by S8 value 032

These are always worth checking, as they mean that the input looks like it is used, but it is not. This may be what is intended, in which case the line should probably be deleted. Otherwise, it could show you a potential problem. In the case of block 0, a logical 0 constant is wired into the rung block but it is not needed because the controlling specification is 0. If you tidy this up, the CLD/CAD sheets will be easier to understand.

Error 124.png

When a block has both this error 125 and "Error 125: Rung block spec is unwired but used", it usually means the source was connected to the wrong input, or the specification values need to be changed:

--Post Processing drawing 10902D2
Rung block Module 20,09,02 Block 5057 S7 is unwired but used by S2 value 010
Rung block Module 20,09,02 Block 5057 S8 is wired (block 1055) but unused by S3 value 000


This message is likely to show an error in the system configuration. It should be reviewed. The issue raised may be in unused logic or graphics, or have other realities that make it a non-issue.

Please contact us for help resolving your error messages.