Spec input index out of range [ERROR 018]

Spec input index out of range for Module 1,11,30 Block 2522 (FC 2): 0

This message means that we cannot process the function code correctly at this time.

This is a rare message. When we have encountered it, the CLD/CAD files have been corrupted. We would be appreciate getting copies of any CLD/CAD files that show this problem.

Note, however, that the usual reason for this message appearing is that there are duplicate sources for a block. Our processing gets confused because the specs we find are attached to the wrong block. Thus, you should first check to make sure that there is only one "Source" entry in the block index.

If more than one exist, the problem is that you have not included only the functioning CLD/CAD files for the module. You should fix the build to eliminate the duplicate sources and probably get rid of these message at the same time.


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.