The software is ASimon and the cable is a ASM-KC1 with DB9 (pc) to RJ45 (safety monitor).
Thanks Myles, the master is an IMF with two Schmersal monitors and multiple Schmersal safety switches. I have the m/c overlocked at the moment because as soon as try to introduce a new switch#2 to replace one which was defective (prog'd with hand held ASi prog) the monitor shows red led and can't run m/c.
Wanted to have a look with ASimon to see if it will tell me whats happening. I only normally use the hand held prog.
cheers
Mark