Thanks for the reply,
I have just tried on input 1, so sure its not a fault with PLC,
I can see the led flash, gets about 1 in 10 inputs and the programme is pretty simple
Input 1 = difu1
difu1 sets latch Output 1
Just for testing.
It is the first time i have used it with a input from this type of device, normally sensors or switches
I am trying to see if i can get any help from the keyence vision system about output speed?
The system all runs of the same 24v DC supply