More than one input to connector at 1240,2310: Module 1,01,02 Block 1001 (FC 1) and IREF (REFERENCE)
This message means that signals from more than one source are being brought into a connector at the coordinates indicated. This message is often cosmetic.
Opening up the sheet in Composer or WinCAD will allow you to remove the extraneous lines and connectors until a single path remains.
When this message mentions two different sources, it is clear that only one works. You can find out which one and resolve accordingly.
--Scanning drawing 9570357A.CAD More than one input to connector at 1600,2600: Block 1788 (FC 129) and Block 1788 (FC 129).
You can see that the extraneous line from block 1788 to S1 of block 1793 causes this message.
It appears that the signal from the two function codes shown are coming into a connector at the coordinates indicated. More than one input to connector at 6860,5960: Block 1606 (FC 30) and Block 1607 (FC 66).
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.