Does anyone have any experience with the Sinec L2 PG/OP Busterminal RS485 (6GK1 500-0DA00)
I have a pair on my plant (which is a new plant) that connect an S7-400 CPU MPI port to a Siemens Touch Panel elsewhere in the field.
As I understand it, this is quite an technology device, so I am tryin gto understand why it would be used in a new, state of the art process? Maybe just as a cheap repeater?
In any case, I want to be able to connect my laptop to the 9-pin D-sub connector on this bustermianl so that I can interrogate the PLC but the MPI adapter does not get any power from the device. I believe there is no 24v supply from the panel to the relevant pins, so any ideas how how I can ccomplish this?