Hello,
I have got two PLCs and I need to establish the communication between them via a Modbus. Due to security reasons PLC A must be accessible only via Modbus RTU and simultaneously it must be a Modbus RTU master. The distance between both PLCs is around 50 meters and unfortunately there is no cable. So my idea is to use RUT956 which would be connected to PLC A via RS485. On the other side I am going to use RUT200 which would be connected to slave PLC B via ethernet cable, using Modbus TCP. The RUT200 would be then connected to RUT956 via wifi (RUT956 as AP and RUT200 as client). Would this kind of topology be possible? However, if not, would be then possible to replace rut200 by another rut956 so that the communication would be via Modbus RTU on both sides?
Thanks for any hints