01.02.2021, 17:30
Right now we have only A and B terminal connected, the cable shield is grounded but some of the modbus devices don't have the GND connector so we choose not to connect the common wire and we installed the termination resistors (120 ohm 1/4W) on both sides. We already tried to disconnect every devices and nothing change.
We don't know what device could cause the problem, maybe even all of them.
Another question: the 0V connector on the W4K is the same things of a common connector? For example, can be used as a 0V reference for the devices that need it? It has to be grounded?
We don't know what device could cause the problem, maybe even all of them.
Another question: the 0V connector on the W4K is the same things of a common connector? For example, can be used as a 0V reference for the devices that need it? It has to be grounded?