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Title:
Sensing and Controlling devices
I am trying to sense and control devices. (ie. printer applicator, conveyor, on/off pushbutton,etc.) Does anyone know of a simple devices that convert contact voltages(on or off) to something VFP could understand by reading the serial port?
For instance: if signal from conveyor is on and pushbutton is off run this piece of code and tell printer applicator to apply.
Any ideas are greatly appreciated.
Thanks,
David Martin
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