Modbus Function code 02 – Read Contact(s)

Modbus Function Command Formats

In this article, you will learn the Modbus Function Codes like Read and write of coil, contact, holding register, and analog input register.

Modbus scan

How Modbus Communication works

Introduction to Modbus Modbus is the “granddaddy” of industrial communication protocols. It was originally designed in the mid-1970s by Modicon