Simply Modbus

Simply Modbus

Modbus is a serial communication protocol for programmable logic controllers
 
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Modbus is a serial communication protocol developed by Modicon published by ModiconĀ® in 1979 for use with its programmable logic controllers (PLCs). In simple terms, it is a method used for transmitting information over serial lines between electronic devices.
The device requesting the information is called the Modbus Master and the devices supplying information are Modbus Slaves.
In a standard Modbus network, there is one Master and up to 247 Slaves, each with a unique Slave Address from 1 to 247. The Master can also write information to the Slaves.

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