ARIEC60870 is a free IEC 60870 protocol tester and evidence analyzer for IEC 101, IEC 103, and IEC 104 engineering work.

Does it explain raw IEC 60870 frames?

Yes. The Trace workspace keeps raw TX/RX hex visible and shows selected-frame interpretation so engineers can understand what the frame means.

100% free · Apache-2.0 open source · IEC-101 / IEC-103 / IEC-104

Test IEC 101/103/104 and turn raw frames into engineering evidence.

ARIEC60870 is a free Windows protocol tester and evidence analyzer for IEC 60870-5-101, IEC 60870-5-103, and IEC 60870-5-104. It keeps raw TX/RX frames visible, explains selected frame meaning, surfaces Smart Findings, records event/value evidence, and exports clean PDF reports for FAT, SAT, commissioning, troubleshooting, academic research, vendor evaluation, and commercial engineering work.

Download Windows ZIP Learn IEC 60870

100% freeApache-2.0 open sourceRaw TX/RX interpreterSmart FindingsNative PDF report

Why it is different

Not just a protocol capture. It turns communication into engineering evidence.

A link can be alive while data is silent. A command can be syntactically valid but never confirmed. A device can answer while using a different Common Address. ARIEC60870 keeps raw frames, decoded meaning, values, events, findings, and reports connected.

Protocol testerCheck IEC-101 serial, IEC-103 relay, and IEC-104 TCP/IP communication in an authorized engineering session.

Raw frame interpreterKeep TX/RX evidence visible and explain selected frame meaning without forcing every user to decode bytes manually.

Smart FindingsTurn CA mismatch, GI gaps, command timeout, missing ACTCON/ACTTERM, or unstable IEC-104 sessions into problem, proof, and next step.

Evidence reportGenerate native PDF evidence for FAT, SAT, commissioning, troubleshooting, homologation support, vendor comparison, and handover.

Screenshots

Inspect the workspace after the animated demo.

Animation is best for the first impression. Screenshots stay important because engineers need to inspect trace, values, events, findings, mapping, and report preview before downloading.

Evidence workspace

One workspace for values, events, trace, findings, and reports.

Line monitor

Raw TX/RX evidence remains visible while selected frames are explained.

Smart Findings

Problem, proof, likely cause, and next action stay connected to evidence.

Report workspace

Preview the evidence before PDF export.

Field Wiki

Learn the protocol while using the analyzer.

The Field Wiki explains ACD, DFC, Class 1/Class 2 polling, General Interrogation, command flow, Common Address, IEC-103 relay events, IEC-104 session control, and report evidence in practical field language.

Open Field Wiki Smart Findings

Download

Download the Windows ZIP and run ARIEC60870.exe.

Use it when you need explainable IEC 60870 protocol evidence, not only a protocol capture.

Download latest release Download guide