J
Greetings everyone,
I have a BK9100 with a KL1404 and a KL2404 modules. I am using modbus to communicate with them.
I use Read Discrete Inputs to get input from the KL1404, and that works every time.
When I try Write Single Coil and Write Multiple Coils, I have only ever gotten the KL2404 to do anything exactly twice. The two times I have gotten it to work, I use Write Multiple Coils passing 8 bits to address zero. I have repeated this hundreds of times, trying every possible combination I can think of, but I cannot (usually) get anything to happen.
Why it worked twice is beyond me. Is this common? Does anyone know the exact modbus output that should work on a KL2404?
Is it possible that the device is damaged? It is brand new.
thank you
Jim
I have a BK9100 with a KL1404 and a KL2404 modules. I am using modbus to communicate with them.
I use Read Discrete Inputs to get input from the KL1404, and that works every time.
When I try Write Single Coil and Write Multiple Coils, I have only ever gotten the KL2404 to do anything exactly twice. The two times I have gotten it to work, I use Write Multiple Coils passing 8 bits to address zero. I have repeated this hundreds of times, trying every possible combination I can think of, but I cannot (usually) get anything to happen.
Why it worked twice is beyond me. Is this common? Does anyone know the exact modbus output that should work on a KL2404?
Is it possible that the device is damaged? It is brand new.
thank you
Jim