Idle 0 packets 0 dropped 00:00
FI-1XX · Field Instrument

See the network.
Preserve the evidence.

SIGNALTRACE inspects Modbus, BACnet, and LonWorks traffic, reconstructs conversations, and builds an evidence-backed topology. It highlights observable anomalies without pretending traffic alone proves a root cause.

ConnectSelect an honest source
CaptureImport or receive frames
DecodeRead protocol meaning
MapTrace devices and links
InvestigateAnnotate evidence
CompareMeasure against baseline
ReportExport conclusions
Capture limitation: a normal browser cannot passively sniff arbitrary Ethernet interfaces. SIGNALTRACE labels every source as synthetic, imported, serial, or live bridge data and never simulates access it does not have.
No.TimestampΔtSourceDestinationProtocolSegmentTypeFunction / ServiceObject / RegisterSummaryRTTStatusSeverity

Conversations

Correlated requests, responses, acknowledgments, retries, and timeouts.

Device Inventory

Observed identities, roles, locations, timing, and evidence confidence.

NameProtocolAddressRoleFirst seenLast seenMessagesErrorsAvg RTTBaselineConfidenceExpected

Data Explorer

Register, object, and network-variable activity reconstructed from observed traffic.

Diagnostics

Observable conditions, evidence links, possible interpretations, and verification steps.

Baseline Comparison

Compare devices, communication relationships, traffic, timing, and errors against a known-good capture.

Investigation Notebook

Observe → Question → Hypothesize → Test → Verify. Observations remain separate from interpretations.

Reports & Evidence

Printable report, structured evidence package, packet exports, and topology diagram.

Settings

Local processing, decoding conventions, retention, privacy, and display behavior.

Display

Local data

Projects are stored locally in this browser. Capture data is never uploaded by SIGNALTRACE.

Export redaction

Capture bridge

The optional bridge is receive-only from the browser’s perspective. No replay, injection, or device-control functions are included.

Timeline & related conversations

No capture loaded