I got a job out of school and my boss came up with a project to get my feet wet with PLCs. We have a 175 ton hydraulic press that has a GE Fanuc 90/30 that is in very bad shape, The task for me is to replace it with a SLC 5/04 and then add a method to control ram depth to the PLC also. So far I just went line by line with the program from the GE and wrote it in Allen Bradley, but there is a couple of lines that GE uses a TMR timer in a Latch Sequence that I am not sure how it works and how to do the same thing in the SLC. It looks like a OTU and an OTL but I do not understand this TMR timer unless it works like a oneshot does in a way.
Thanks Joel
Thanks Joel