Monthly Archives: November 2013

Modbus, Traditional Networks still Dominant over Industrial Ethernet


Modbus, Traditional Networks still Dominant over Industrial Ethernet

We’re always keeping an eye on innovation, and a big trend in the PLC world is the move toward industrial ethernet communications rather than traditional networks. However, Bill Lydon (Editor for recently posted an article asserting that it’s going to be 15-20 years before industrial ethernet becomes the dominant market technology. In the meantime, customers are relying on networks like Modbus, Fieldbus, DeviceNet and others.

Modbus, designed by Modicon in 1979, is a request/reply protocol and offers services specified by function codes. Our Modicon Quantum Communications Modules utilize Modbus protocol to communicate with the drives and input/output modules on the same network, and has become so popular since its inception that many other industrial electronics also support the protocol.

Click Here to read the rest of the article, including an interview with an IHS Media Electronics Researcher: 

MRO Electric and Supply has new and refurbished FANUC CNC, FANUC Robotics, Control Techniques,  Siemens, Modicon, Yaskawa, MagneTek, Saftronics, and Omron products available. We also offer repair pricing. For more information, please call 800-691-8511 or email