Yesterday, 09:56 PM
Good morning, I also did some tests with the multimeter looking at your diagram and the board seems not to work, that is, the KC868 has v2. Using your tool to check and change the assignments of the inputs to the outputs, I don't know if it also shows the activation of the outputs, but every time I close and open the input, the RS485 adapter emits a signal and under the bar it shows me the last signal that arrived, so the inputs, so to speak, "work". Now I tried with the multimeter considering that I'm using only one 12 volt power supply for everything, so the grounds are equivalent! Here is the voltage between the +12 volts and the output, which according to your diagram should be negative, always remains at 6 volts without ever varying (I'm talking about an open circuit). I tried installing a classic relay that is powered by 12 volts and has a pilot input that can be set to receive either positive or negative inputs. Obviously, I set the input to negative and when I try to close the input, the result does n