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Modbus RTU / TCP

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Modbus RTU / TCP (PDF, 0.30MB)Published: 29 Mar, 2021
Created by:
Don C. Weber
Don C. Weber

This guide covers the basics of using Modbus Remote Terminal Unit (RTU) and Modbus Transmission Control Protocol (TCP). It provides an outline of the packet formatting for both protocols. A table of the read and write function calls is provided.

Author

Don C. Weber
Don C. Weber

Don C. Weber

Principal Instructor

A visionary OT security leader, SANS Principal Instructor, and USMC veteran, Don co-authored ICS613 and teaches ICS410. He translates years of frontline experience into safer, practical methods to empower defenders protecting critical infrastructure.

Read more about Don C. Weber

Resources

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