junkerjorg
Member
Has anyone converted an SLC to CompactLogix for an Alvey 910 palletizer? The translation went ok but there is some funky code around how they store and retrieve pattern data that has me scratching my head. In the old SLC they used word level indirect addressing, which you can't do in a CLX. I created a two dimensional array to deal with that but data isn't populating. But the way the code is written, it doesn't jump into the pattern routine until a change is made and then it writes the current data into a storage array before it retrieves the same data to write back to the working registers. I'm also a little unclear how the INT to DINT conversion in the SQO and MVM affects the data. I'm in panic mode because I am running out of time to get this complete and installed.