This working group focusses on the communication between the charging station (EVerest) and the management system(s) (CPMS)
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Meeting Notes:
08 May 2024
Discussed:
- OCPP 2.0.1 edition 3 is out: same message, improved documentation. All known errata have been merged into the spec itself.
- ChargeX: MREC (Minimum required error codes)
https://inl.gov/chargex/mrec/
Discussed that this is now implemented in 1.6.
Refactoring of error handling in EVerest at the moment, that will effect this.
https://github.com/EVerest/everest-framework/pull/186
OCPP 2.0.1 still needs to be done.
NotifyEvent is implemented, but no functionality yet that triggers this.
- Discussed the problem found with root certificates in folders.
More background info. Certificate is printed, but only the old one.
Might not even have worked before.
- Discussed how to handle 15118 V2G certificate per SECC in case of multiple EVSE. OCPP certificate handling does not seem to support this where 15118-1 gives both options.
02 May 2024
Discussed:
- Composite Schedule calculation: https://lfenergy.zulipchat.com/#narrow/stream/417676-EVerest.3A-Cloud-communication/topic/Problem.20with.20ChargePointMaxProfile.20Usage
- AFS/JOET starts to implement composite schedule calculation for OCPP2.0.1
- Line voltage of 230V is currently hard-coded in the smart charging handler; will be made configurable
- Decision: libocpp shall reject ChargingProfiles in Amps in case it manages at least one DC EVSE.
- TxProfile must not necessarily be stored in non-volatile memory, see: https://github.com/EVerest/libocpp/issues/543
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