modbus versions

Modbus protocol


Modbus is a communication protocol which is used with programmable logic controllers. This communication protocol was published by a firm named Modicon in 1979. It has now become the most de facto standard protocol in the industry. Modbus is now very commonly used as a means to connect the industrial electronic devices. This protocol is very easily available as it is very extensively used. There are certain important reasons for the use of Modbus rather than use of other communication protocol. These are as follows:

1.This protocol is published openly and is royalty free.
2.It is an easiest way to setup an industrial network.
3.This protocol moves raw bits without any restrictions.

modbus protocol

modbus webserver

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