Connect and discover
Add the approved endpoint, establish MMS association and inspect the live hierarchy, DataSets, RCBs and control model.
Factory acceptance testing · protection · SAS · gateway integration
IEC 61850 FAT testing with live evidence from the IED.
Use ARSAS to discover the server model, select the signals required by the test procedure, validate reporting and GOOSE behavior, inspect command completion and confirm fault-record access before equipment leaves the factory.
MMSDiscover the live data model and service context
ReportsValidate BRCB, URCB and fallback acquisition
GOOSEInspect identity, sequence, retransmission and payload
EvidenceKeep values, quality, time, reason and outcomes visible
Suggested workflow
Move from endpoint access to witnessed evidence.
Adapt the sequence to the approved FAT procedure and project responsibilities.
Select the FAT signals
Choose status, measurement, quality and timestamp points required by the test sheet instead of mapping the entire IED blindly.
Validate acquisition
Prefer configured reporting, verify exact DataSet membership and keep unsupported or unavailable coverage visible.
Inspect GOOSE and control
Check stream identity and sequence evidence, then execute only approved Direct or SBO operations with visible completion results.
Confirm files and diagnostics
Probe available fault records and retain communication, report, frame and service outcomes with the originating IED.
Focused FAT signal validation
Review selected values with device identity, quality, timestamp, acquisition source and recent-change evidence while the witness procedure is executed.
Protection and substation automation FAT.
- Relay and bay-controller communication checks
- BRCB and URCB behavior
- GOOSE publishing and subscription evidence
- Direct and SBO control validation
- Disturbance-record file access
FAT acceptance remains procedural.
ARSAS does not replace calibrated injection equipment, protection-function testing, approved drawings, settings review, cybersecurity controls, witness sign-off or vendor responsibility.
Verified stable release
Download ARSAS 1.6.17 for Windows.
Use the installer for a normal workstation, choose the portable ZIP for a controlled folder deployment, and verify the published SHA-256 before use.
What’s new, limitations and signing status →