The best solution is to use RUT230 routers as gateways between SCADA and the PLCs, making effective use of the Modbus TCP protocol for control and an L2TP VPN tunnel for remote access. | The best solution is to use RUT230 routers as gateways between SCADA and the PLCs, making effective use of the Modbus TCP protocol for control and an L2TP VPN tunnel for remote access. |