Rungstone listing history

Rungstone helps industrial controls engineers work with PLC, HMI/SCADA and historian exports.

• Understand PLC code: a plain-English summary, the machine sequence by rung, and a signal table where every meaning is labelled confirmed, from comment, from I/O map, inferred or unknown.
• Translate between Rockwell Logix, SLC 500, Siemens S7-1500 SCL, IEC 61131-3 Structured Text, OpenPLC / Beremiz and IEC 61499 (Eclipse 4diac), with a mapping table and a ranked review queue the engineer approves before export.
• Verify translations in a scan-cycle simulator (results are labelled simulated, not hardware-tested).
• Lock-in report for CODESYS and TwinCAT projects: what ties the code to its platform, rated per target with rough hours.
• Check (static analysis for likely bugs), diff two exports of the same project in plain English, and generate unit tests (CfUnit, TcUnit or plain IEC) from the code's current behaviour.
• Map readers, writers and conflicts across PLC and HMI/SCADA, retarget HMI tags, and clean up alarms.
• Find why a line or pump stopped from historian and alarm exports, and cite the PLC rung that caused it.

Read-only by design: it never connects to or writes to a controller, excludes safety-rated logic with a visible notice, and never opens source-protected code. Not for use on a production system without review and testing by a qualified engineer. Provided as is, without warranty.