Hi Forum,

I was wondering if there are PLC IDEs which have a function which allows 2 PLC programs (in either ladder code or compiled) to be compared to each other?

We are making some minor changes to a PLC ladder logic and want to do a compare as a regression test, i.e. to check that we haven't inadvertently altered other parts of the PLC code which are intended to remain the same.

TIA
Multivits

 

Not sure what the acronym IDE™sis.....but in the case of Rockwell there is a compare utility that compares every tag, tag structure and all logic and generates a report showing every difference from processor revision to date of add in instruction and everything in between.

Dave Ferguson
Senior Control Systems Enginee