Make RTU/ASCII slave devices accessible to TCP masters, while
maintaining original serial master and RTU/ASCII architecture
For real-time control applications, the original HMI is often an embedded serial device that connects directly to serial slave services. The serial redirector function on the MB3270 allows one serial port to be connected to another serial port instead of to the Ethernet port. With this feature, the original serial master can continue controlling devices on the serial network while monitoring is performed from the TCP network. In a Modbus RTU/ASCII network where the original serial master must retain control of the serial devices, the MB3270 and MB3470 provide ideal solutions for adding Modbus TCP monitoring or control.
•Integrate complex Modbus networks
The serial redirector function also allows different Modbus serial networks to communicate with each other. The MB3270 is thus able to support every master-slave combination between TCP, RTU, and ASCII, providing easy consolidation of all your Modbus networks.