Force Coil Modbus TCP function


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I have problem with Force coil modbus tcp function (5). When I put ordinary button and connect it to Force Coil tcp function channel, it always send xFF in data part. This is same for all type button & Switches, EXCEPT for spin button which send x00 and xFF when push upper and lower part.

On attached print screen, first push send xFF and LED is "on" on button, but second push actualy switch off button and LED, but channel show same data is sent to device (and device respond to it)..... Problem.

My question is, how to setup, embedded buttons&switches to sent x00 or xFF, and how to do same with simbol factory "buttons" .



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