It was a bad guess. I do not know the PLC device. In early PCs, some peripherals needed to be hard-coded to a comm port with DIP switches and code. Probably not this (or any) USB device.
It was a bad guess. I do not know the PLC device. In early PCs, some peripherals needed to be hard-coded to a comm port with DIP switches and code. Probably not this (or any) USB device.