I have a strange issue with a ZT2500 Mori that is in a system with another ZT 2500 and a new fanuc robot. The problem is when the machine reads an M0 on the new ZT the machine stops and the robot can output a start signal and the machine starts no problem. The older ZT hits an M0 and it to stops then the robot issues a start command and the machine only move to the next block 9like its in single block) at each start signal . but i can reach through the fence and press the machine cycle start button and off we go. machines are 3-4 years apart and are running different versions of mapps. One is mapps 3 and the new ZT is mapps 4. I think both are fanuc 18I I have tried every data bit, keep relay, and parameter that is connected with m0 in the ladder . I have compared both machine files and listed the differant parameters and changed the ones that might make a differance with no luck. So have any of you guys had a similar issue like this before. Its not the robot its got to be the way the ladder reads the mo with the robot valid . Mori seems baffled by this issue.