The OCPP Reset Command: Soft Reset vs Hard Reset
The OCPP Reset command restarts a charger remotely. A soft reset restarts the software, a hard reset restarts the hardware; which one to choose depends on the fault.
Read more →
Technical guides about OCPP, CPO operations, smart charging and e-mobility.
The OCPP Reset command restarts a charger remotely. A soft reset restarts the software, a hard reset restarts the hardware; which one to choose depends on the fault.
Read more →RemoteStopTransaction is the OCPP command that lets the management software end an ongoing charging session remotely.
Read more →RemoteStartTransaction is the OCPP command the management software uses to ask a charger to start charging remotely. It powers app and QR code charging.
Read more →MeterValues is the OCPP message a charger uses to send readings such as energy, power, current, voltage and battery state of charge to the management software.
Read more →StartTransaction and StopTransaction record the start and end of a charging session in OCPP 1.6J and form the foundation of billing.
Read more →Authorize is the OCPP message a charger uses to ask the management software whether a user is allowed to start charging.
Read more →StatusNotification is the OCPP message a charger uses to report the status of each connector. Live maps and fault alerts are built on these messages.
Read more →Heartbeat is the OCPP message a charger sends at regular intervals to say "I'm still here". The right interval affects connection monitoring and data usage.
Read more →BootNotification is the first OCPP message a charger sends after power-up to introduce itself. The reply decides whether the charger can start operating.
Read more →A CALLERROR reports that an OCPP message could not be processed technically. Reading the code correctly quickly shows whether the problem is in the charger or the software.
Read more →In OCPP-J, every message is a small JSON array: CALL for a request, CALLRESULT for a successful reply and CALLERROR for an error.
Read more →OCPP-J carries messages as JSON over WebSocket, while OCPP-S uses XML over SOAP/HTTP. For new installations, OCPP-J is the de facto standard.
Read more →