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Industrial Protocols Cheat Sheet

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Industrial Protocols Cheat Sheet (PDF, 0.25MB)Published: 06 Apr, 2021
Created by:
Don C. WeberJustin Searle
Don C. Weber & Justin Searle

This tri-fold cheat sheet provides details about common Industrial protocols that are being found in different areas of control networks. These protocols have been organized in the following sections: Fieldbus and Fieldbus Management, Site SCADA, and Regional SCADA. Details vary by protocol but include names, ethernet types, port numbers, and available encryption capabilities. For additional details about each protocol, refer to the associated protocol specifications, vendor specifications and other online documentation.

Authors

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.

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Justin Searle

Justin Searle

Senior Instructor

Justin Searle has redefined industrial cybersecurity by leading the development of NIST IR 7628, a cornerstone in smart grid security, and creating open-source tools like ControlThings that have become essential for ICS/IIoT assessments.

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Resources

Inclusive Cybersecurity Training for the ICS/OT Workforce

Poster & Cheat SheetsIndustrial Control Systems Security
  • 15 Jun 2026

Deploying and Maturing the ICS/OT Cybersecurity Workforce

Poster & Cheat SheetsIndustrial Control Systems Security
  • 15 Jun 2026

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