Hi Gary
Thanks for your ideas. I had opportunity to day to spend time.
Using O/Ps 3,4,5 & 6. Allocating these to M3 all switch using M3/M5.? so it can all work
I tried the ?turn on using (DoOEMButton(233) , this works, as did 235 etc
However the turnof DoOEMButton(234)?Does not turn off., nor did 236.

Totally confused.
All other I/O was disabled and unplugged to elimate confusion.
Is their more commands to go with the enabling DoOEM etc?
I am writing his code as an Mcode using the VB editor
Any ideas

Regards

Graham

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