Learning path · One charger, one day of messages

OCPP in depth

Follow one charger's messages through one day, and understand what OCPP does, how its versions differ and how faults show up.

9 stops · about 57 min · Advanced, builds on ev charging fundamentals · 0 of 9 done

Start the path
What you will understand

Read the messages of a charger and tell what happened, when and why.

  1. Stops 01 · 02 · 03

    The connection

    What OCPP is for, how a charger connects, and the versions in use.

  2. Stops 04 · 05

    A session in messages

    Authorise, start, meter values, stop, and signed readings.

  3. Stops 06 · 07

    Control and trust

    Remote actions and security profiles.

  4. Stop 08

    Fault finding

    Reading a log to tell charger, car and network apart.

Stop 09 brings it together: One day of messages, fully understood. Then the final assessment and a verifiable certificate.

Optional deep diveFor professionals, after the path: One session as raw OCPP messages, about 12 min. It reads the raw material behind the path and does not count towards the assessment.