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Modbus RTU / TCP

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Modbus RTU / TCP (PDF, 0.30MB)Published: 29 Mar, 2021
Created by:
SANS Institute
SANS Institute

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

SANS Institute
SANS Institute

SANS Institute

Launched in 1989 as a cooperative for information security thought leadership, it is SANS’ ongoing mission to empower cybersecurity professionals with the practical skills and knowledge they need to make our world a safer place.

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