Limitations (Home)

Direct OCPP currently has the following limitations

Network Connection

The charger needs a network connection at startup to synchronize the system time. This is essential for verifying the server's certificate during the TLS handshake.

A fully offline OCPP scenario is currently not supported.

Datetime Format

Only UTC timezone support, 'Z' indicator required. Fractional seconds is optional in messages to charger, 1-9 digits in fractional seconds supported.

An example of the accepted time format by the charger:

"currentTime":"2026-01-01T01:23:45.678Z"



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