Modbus is a serial communication protocol developed by Modicon ® Released by Modicon in 1979 for its programmable logic controller (PLC). Simply put, it is a method for transmitting information between electronic devices through serial lines. The device that requests information is called a Modbus Master, and the device that provides information is a Modbus Slave. In a standard Modbus network, there is one master and up to 247 slaves, each with a slave address ranging from 1 to 247. The master station can also write information to the slave stations.
The official Modbus specification can be found inmodbus.org/specs.phpFound on top.
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