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.
Modbus Troubleshooting in SCADA — 15 Real Field Problems Engineers Face
Practical Modbus troubleshooting guide for SCADA engineers. Learn 15 real field problems, exception errors, RS-485 issues, and proven solutions to fix communication fast.
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.
Best Free Modbus Software: 10 Tools for RTU and TCP Testing
Best free Modbus software for engineers: 10 tools for RTU, TCP, and ASCII testing. Master utilities, slave simulators, sniffers, and monitors compared.
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.