BootNotification

The first message after connecting. Identifies the charging station and reports why it booted.

Version: OCPP 2.0.1
Direction: Charge Point → CSMS
Functional block: Provisioning

BootNotification also exists in OCPP 1.6, with a different payload. See the OCPP 1.6 version.

As in 1.6, nothing else may be sent until the CSMS answers Accepted. What changed is the shape: the hardware identity moves into a nested chargingStation object with an optional modem, and a new reason field says why the station booted.

reason is the useful addition. A station that reboots on PowerUp is normal; one that keeps reporting FirmwareUpdate or RemoteReset is telling you something.

Request

Field	Type	Required	Description
`chargingStation`	ChargingStationType	Required	`model` and `vendorName` are required; `serialNumber`, `firmwareVersion` and `modem` are optional.
`reason`	BootReasonEnumType	Required	Why the station is sending BootNotification.

json

[2, "19223201", "BootNotification", {
  "reason": "PowerUp",
  "chargingStation": {
    "model": "AC22-Duo",
    "vendorName": "AcmeCharging",
    "serialNumber": "SN-0001234",
    "firmwareVersion": "3.1.0",
    "modem": { "iccid": "8944500000000000000", "imsi": "234150000000000" }
  }
}]

Response

Field	Type	Required	Description
`currentTime`	dateTime	Required	The CSMS's current time.
`interval`	integer	Required	Heartbeat interval when Accepted; retry delay when Pending or Rejected.
`status`	RegistrationStatusEnumType	Required	Whether the station is accepted.
`statusInfo`	StatusInfoType	Optional	Machine-readable `reasonCode` plus optional `additionalInfo`.

json

[3, "19223201", {
  "currentTime": "2026-09-09T10:15:30Z",
  "interval": 300,
  "status": "Accepted"
}]

Values

BootReasonEnumType

Value	Meaning
`PowerUp`	Normal power-on.
`FirmwareUpdate`	Rebooted after a firmware update.
`RemoteReset`	Rebooted by a Reset request.
`LocalReset`	Reset triggered at the station.
`ScheduledReset`	A reset that had been scheduled.
`Triggered`	Sent because of TriggerMessage, not an actual boot.
`ApplicationReset`	The station's application restarted.
`Watchdog`	A watchdog timer forced the restart.
`Unknown`	The station cannot determine the reason.

RegistrationStatusEnumType

Value	Meaning
`Accepted`	Registered; the station may send other messages.
`Pending`	Known but not ready. The CSMS may configure it before accepting.
`Rejected`	Not accepted. Wait `interval` seconds before retrying.

Implementation notes

`reason: "Triggered"` is not a boot. It means the CSMS asked for this message with TriggerMessage. Counting it as a restart makes healthy stations look unstable.

statusInfo is new in 2.0.1 and appears on most responses. It carries a reasonCode you can branch on, rather than free text — use it instead of parsing messages.

The 1.6 chargePointVendor/chargePointModel fields are now chargingStation.vendorName/chargingStation.model.