Hi, Thanks for replying! Probably need more information to give you an answer. Is there any commonality between the operation of the jigs? Each one of course has some operations that are the same, such as a cylinder moving in to to seal a part for air testing. Do all doors have the same I/O? Do all jigs use the same I/O? All the doors have the same I/O and hardware configurations, input modules in jigs do vary, all at least have two, some have three and some have four. You may be able to make a program section to handle the common functions, then individual sections for the specific jigs. Obviously I am making some assumptions at this point. This is what currently is in the program now, however it would've been nicer if only the logic for the detected jig would be scanned instead of all logic being scanned. (this I plan on changing to use subroutines) Worst case, you could upgrade the processors to CJ1H-H units with enough memory to handle the logic. This would add cost, but would make maintenance much less of a headache. How much more memory capacity does the CJ1H-H units have compared to the CJ1G-H units? Good Luck, and please let us know if you have other questions or thoughts! Thanks again! Deke2006
