300+ SCADA Protocol Articles & Guides
Deep dives on Modbus, DNP3, IEC 60870-5-101/104, IEC 61850, OPC UA, Profinet, MQTT, IEC 62443, and substation automation — written for practicing engineers.
Wireshark Modbus RTU: Decode Serial RS-485 Traffic
Wireshark Modbus RTU over RS-485: COM port setup with a serial adapter, DLT 147 configuration, display filters, and how to read framing and CRC errors.
Coding Modbus TCP/IP for Arduino: A Complete Technical Guide
Complete guide to coding Modbus TCP/IP on Arduino. Learn protocol structure, implement client/server, practical examples, troubleshooting. Perfect for industrial automation projects.
PROFIBUS Cable: Types, Specs & Wiring Guide
Everything engineers need to know about PROFIBUS cable — types A/B/C/D, impedance, wire gauge, jacket colors, baud rate vs. cable length, DB9 and M12 connector pin assignments, termination, shielding, grounding, and troubleshooting. Based on IEC 61158-2 and IEC 61784-1.
PROFIBUS vs Modbus: Complete Technical Comparison for Engineers
A thorough technical comparison of PROFIBUS vs Modbus — covering protocol architecture, message framing, function codes, CRC methods, speed, diagnostics, network topology, and when to choose each. Based on the original Modicon Modbus specification and IEC 61784-1.
What Is PROFIBUS? Complete Beginner's Guide
What is PROFIBUS? This beginner's guide explains what PROFIBUS is, how it works, the difference between PROFIBUS DP and PA, where it's used, and why it still matters — in plain language with no assumed knowledge.
PROFIBUS DP Protocol: Complete Technical Guide
A complete technical guide to the PROFIBUS DP protocol — covering RS-485 physical layer, token bus access, DP-V0/V1/V2, baud rates, cable lengths, GSD files, application profiles, and IEC 61784-1. Written for automation engineers.
Modbus over RS485 Communication Frequency and Baud Rate
Modbus over RS485 communication frequency explained: real baud rate limits, bit timing, cable length, and how to size your poll cycle correctly in the field.
RS232 vs RS485: Key Differences, Comparison, and Pinout Explained
Compare RS232 vs RS485 communication standards — learn key differences in wiring, pinouts, speed, distance, and applications for serial devices.
RS-485 Wiring Guide: Best Practices, Installation Steps, and Common Mistakes to Avoid
Learn RS-485 wiring best practices with our complete installation guide. Discover tips, diagrams, and common mistakes to ensure reliable network performance.
RS-485 vs Ethernet: Choosing the Right Network for Modbus
Compare RS-485 vs Ethernet for Modbus communication. Learn key differences, pros, and best use cases to choose the right Modbus network for your system.