This is a new machine install using 1794-OA8 flex I/O. We are powering a small Sonalert piezo electric buzzer and 2 lamps from these outputs But even with the outputs off the buzzer sounds and the lights stay illuminated. I swapped out the module with a new unit to see if teh outputs were bad. i suspect the leakage current thru the triac but not to smart about that. From what I read on AB info sheet I tried putting a 150K ohm resistor in parallel with teh buzzer and that did not help.
Any advice besides maybe using relays?
Any advice besides maybe using relays?
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