Start from the approved IO List.
Import SDI points, bind them to one live IED, require OFF → ON → OFF evidence, and export Excel, native PDF or a portable .arsas project.
Symptoms · evidence · diagnostic path
IEC 61850 guidance for real project blockers and repeatable FAT evidence.
Search troubleshooting guides by symptom, service, object or error. For a planned SDI campaign, open the dedicated IO List FAT evidence guide. Filtering is performed locally and search text is not sent to a server or analytics event.
Keep the problem attributable.
Separate association, MMS service, report, sequence, frame, IO-test continuity and IED-behavior evidence before changing configuration.
Start from the failure evidence.
Use the filter below for connection, reporting, GOOSE, file, SCL and control problems without forcing an unrelated configuration change.
Troubleshooting library
Choose the symptom you are investigating.
Each technical guide gives an immediate answer, common causes, a bounded diagnostic path, ARSAS evidence and a clear engineering limitation.
IEC 61850 reporting is silent
Connection works, but BRCB or URCB values never arrive.
Open guideBRCB vs URCB
Choose and diagnose buffered versus unbuffered reporting.
Open guideRCB reserved or occupied
Understand ownership, reservation and safe next checks.
Open guideEmpty DataSet
Explain why a report control block exists but carries no useful members.
Open guidePort 102 connection failed
Separate routing, firewall, endpoint and application-layer causes.
Open guideDownload COMTRADE
Diagnose MMS file-service discovery and disturbance-record retrieval.
Open guideGOOSE stNum and sqNum
Interpret state changes, retransmission and sequence anomalies.
Open guideCID or SCL file rejected
Compare parser failure, configured intent and live IED evidence.
Open guideLive model vs SCL
Know when configured files and the running relay disagree.
Open guideDirect vs SBO control
Distinguish direct operation from Select-Before-Operate.
Open guideCommandTermination and AddCause
Read negative completion evidence after a control request.
Open guide
Verified stable · ARSAS 1.6.41
Ready for an approved Windows workstation?
Installer and portable packages share the same application scope. Verify the published SHA-256 and review the release boundary before field use.
Release notes, limitations and signing status →