Modbus Overview

The Modbus protocol is used mostly in the industrial process market to communicate between PLCs (Programmable Logic Controllers). Although there is no official standard, there is extensive documentation on Modbus and most companies who choose to interface using this protocol follow the same format.

Modbus is not a protocol that is particularly well suited for building management because of its limited master/slave structure, but as it is fairly simple to construct an interface, many companies do offer Modbus as an open protocol solution.


Because it is a common open protocol, modbus is a standard offering for OEMCtrl translators and programmable controllers.


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