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 Poll Android App: Read, Write, and Test Modbus Devices From Your Phone
Turn your Android phone into a Modbus master. Connect over Wi-Fi, read registers, write coils, and debug PLCs on-site - no laptop needed.
SCADA Protocol Analyzer: Decode Industrial Protocols on Your Phone
Decode DNP3, Modbus TCP/RTU, IEC-104, and IEC-101 hex frames on your Android phone. Paste, decode, and analyze SCADA protocol traffic anywhere - no laptop needed.
DNP3 Decoder Tool Online | Decode DNP3 Frames Instantly (IEEE 1815)
Use our online DNP3 decoder to analyze frames instantly. Supports multi-frame reassembly, CRC checks, Secure Authentication decoding, and detailed field breakdown.
IEC 103 Protocol Decoder: Free, Fast, In-Browser
Instantly decode IEC 60870-5-103 frames online. Analyze protection events, timestamps, ASDU types, and relay data with a reliable IEC-103 hex decoder.
Instant IEC-104 Decoder - Paste Any IEC-104 Hex Frame, Get Clear Results
Decode IEC-104 frames instantly in your browser. Paste hex data to view APCI, ASDU, timestamps, values, and quality bits with a fast, offline IEC-104 decoder.
Free Modbus Decoder & Encoder Online - Instantly Decode RTU & TCP Data
Free browser-based Modbus decoder and encoder. Analyze RTU and TCP frames, display register values correctly, and debug PLC communication fast.
Instant IEC 101 Decoder - Paste Any IEC 101 Hex Frame, Get Clear Results
Free online IEC 101 Decoder. Paste your hex frame and get instant, clear link-layer and ASDU details. No installs, no uploads, everything runs in your browser.