I have a T100MD888 PLC left over from a job that was cancelled. I have another job here that will require almost 50 relay outputs, just a handful of inputs, and a HMI. So I thought I would add 3 EXP1616R boards.
I just want to make sure that I have figured this out correctly. Am I exceeding some I/O limits if I add that many EXP1616Rs to that PLC along with the HMI? Also will the HMI work (be addressable) plugged into that long daisy chain of I/O?
If I recall when adding I/O to the ...888+ PlC the addressing for the additional I/O is shifted. If I recall the first expansion I/O point is not at #9, but somwhere in the 20's. Is this correct?
I have already started pasting down ladder ideas in your software. I also have added all of the I/O points I think I need in one continuous run, but I realize as I install the extra I/O I might have to shift the points. What I want to know is if I have already referenced that I/O point (name) in a ladder can I still shift that I/O name up or down the I/O point list without causing any trouble?