This message tells you 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 CAD sheets will be easier to understand.
--Post Processing drawing 10102I0A.CAD Rung block Module 1,01,02 Block 4901 S19 is wired (block 0) but unused by S9 value 000. Rung block Module 1,01,02 Block 4904 S19 is wired (block 0) but unused by S9 value 000.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.