d398a6ced2
- CitrineOS core extracted (CSMS OCPP 2.0.1) - OpenOCPP extracted (firmware OCPP 1.6J/2.0.1) - ShapeShifter library installed (pip install -e) - ShapeShifter specification extracted - EVerest extracted TODO updated with progress
44 lines
1.7 KiB
ReStructuredText
44 lines
1.7 KiB
ReStructuredText
.. _htg_eichrecht:
|
|
|
|
#########
|
|
Eichrecht
|
|
#########
|
|
|
|
It is recommended to use a power meter that has field-proven support for
|
|
Eichrecht implementation. The power meter should support tracking of the
|
|
transactions and signing of the OCMF packets.
|
|
|
|
EVerest transports the signed meter values from the power meter to the
|
|
OCPP CSMS and triggers the start and stop of a transaction. It does not
|
|
create, store or modify the signed meter values.
|
|
|
|
Requirements for power meter hardware and EVerest driver:
|
|
|
|
- EVerest provides information according to OCMF standard in the
|
|
*start_transaction* and *stop_transaction* commands as described
|
|
here: https://github.com/SAFE-eV/OCMF-Open-Charge-Metering-Format
|
|
|
|
- After power failure of the complete system, an ongoing transaction
|
|
before power failure shall be closed properly (including the signed
|
|
meter value) in the CSMS. For this to work, the *stop_transaction*
|
|
needs to be implemented correctly. On startup, the EvseManager will
|
|
call *stop_transaction(last_uuid)* to try to close the ongoing
|
|
transaction. The power meter driver shall return the signed meter
|
|
value for the transaction and close it. After that, it will call
|
|
*stop_transaction("")* with an empty argument. Then, the power meter
|
|
driver shall clear all pending transactions in the power meter, if
|
|
any.
|
|
|
|
- If the communication between EVerest driver and the power meter is
|
|
lost and re-established during a charging session, the charging
|
|
session shall still receive the signed meter value normally at the
|
|
end of the session.
|
|
|
|
- EvseManager should be configured to stop the charging session on
|
|
power meter failures (ensure that fail_on_powermeter_errors is set to
|
|
``true``).
|
|
|
|
----
|
|
|
|
**Authors**: Cornelius Claussen, Manuel Ziegler
|