4.69 out of 5
2144 reviews on Udemy

Mastering Modbus RS485 Network Communication

Learn how to design, implement and manage the most popular automation networking system in the world.
Emile Ackbarali
6,474 students enrolled
The Origins of the Modbus Protocol and RS485
Understand Memory Address vs. Memory Value
Memory Addressing Conventions
Typical Device Memory Map
Protocol Network Messaging
RS485 Standard and Device Interconnection
Protocol Data Frame Structure
Query - Response Cycle
Function Codes and Master Commands
Modbus Simulation using FREE Simulation Software
Troubleshooting and Exception Codes
Floating Point Data Structure
Modbus Communication with Programmable Logic Controller
Full Course Support Documentation

The Modbus protocol is the oldest and still by far the most popular automation protocol in the field of process automation and SCADA. Knowing how to create Modbus based networks that run on the RS485 serial communication standard is essential for any electrical technician and engineer working in these fields. Being able to integrate devices from different manufacturers is a skill that is in demand and will ultimately make you more valuable and marketable in the industry.

This course gives you the theory behind the Modbus Protocol as well as RS485. It then goes on to show you how they work together to create a Modbus RS485 network. Two freeware applications are then used to create a Modbus network right on your PC so you can see the communication in action. 

After completing this course, you will be able to integrate devices from the same manufacturers and different manufacturers, that are Modbus compliant, to form a complete seamless network.

You can view and review the lecture materials indefinitely, like an on-demand channel.
Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don't have an internet connection, some instructors also let their students download course lectures. That's up to the instructor though, so make sure you get on their good side!
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4 hours on-demand video
Full lifetime access
Access on mobile and TV
Certificate of Completion
Mastering Modbus RS485 Network Communication
$44.98 $37


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