I use a FP 2000, one FP-SG-140 and 4 FP-AI-110. Is it possible to read all channels of all modules simultaneously like it was a unique module of 40 channels?
Unfortunately there isn't a way to do that. Generally people will either use 4 seperate FP Reads or use one in a for loop that uses auto-indexing to go through 4 I/O point elements in an array.