OCPP 1.6J Message Reference
Complete reference for OCPP 1.6J messages with examples, schemas, and common use cases.
Core
BootNotification
CP->CSMS
Sent by the Charge Point to notify the Central System that it has booted and is ready to accept messages.
Heartbeat
CP->CSMS
Sent periodically by the Charge Point to notify the Central System that it is still alive.
Authorize
CP->CSMS
Sent by the Charge Point to authorize an identifier (RFID tag, credit card, etc.) before starting a transaction.
StartTransaction
CP->CSMS
Sent by the Charge Point when a charging transaction starts.
StopTransaction
CP->CSMS
Sent by the Charge Point when a charging transaction ends.
StatusNotification
CP->CSMS
Sent by the Charge Point to notify the Central System of a status change on a connector.
MeterValues
CP->CSMS
Sent periodically during charging to report meter readings and other measurands.
ChangeConfiguration
CSMS->CP
Sent by the Central System to change a configuration parameter on the Charge Point.
GetConfiguration
CSMS->CP
Sent by the Central System to retrieve configuration parameters from the Charge Point.
Reset
CSMS->CP
Sent by the Central System to reset (reboot) the Charge Point.
DataTransfer
Both
Used for vendor-specific data exchange between Charge Point and Central System.