SchemaBMS Event BusOperationsSystem

System BMS — Value

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Subscribe to BMS System values (heartbeat timestamps, status, etc.).

Direction: Subscribe (receive)

Channel

BMS/v1/PUB/Value/System/{pointType}/{tagPath}

BMS-published System values.

MQTT wildcard examples

  • All System values: BMS/v1/PUB/Value/System/#

Parameters

ParameterDescription
pointTypeBMS-published System point type. Values: HeartbeatTimestampBms, HeartbeatEchoBms, Status, Available, GenericPoint
tagPathVendor-defined hierarchical tag path.

Message: Point Value

Content Type: application/json

Live value message. Payload envelope is identical for all point types. The semantic meaning of value is determined by the corresponding metadata message.

Payload

NameTypeRequiredDescription
valuenumber or nullYesLive reading for the point (float). May be null when the BMS has no valid reading available.
timestampintegerYesUnix timestamp in epoch milliseconds (source event time).
qualityintegerYes1 = good quality. Any other integer indicates value is not trustworthy
1{
2  "value": 22.96215,
3  "timestamp": 1743620423000,
4  "quality": 1
5}