I have the following scenario, RPI with openplc V3 connected to an arduino UNO with the firmware openplc V3.This made the configuration in the RPI in devices to identify the arduino UNO in the openplc. My doubt is the following as I do the digital reading% QX100. 3, in the arduino UNO in ScadaBR, taking into account that I can read the analog input% QW100 (A0) in SCADA BR.

There are the openplcEditor images and the openplcRuntime configuration.

OpenPLC.png  OpenplcEditor.png 
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%QX100.3 = Modbus coil address 803. 
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