muhammedalmaz / ma-ocpp-simulator Goto Github PK

Considering the charge point can have any type of ID, I would recommend to change the field to string, without any validations

As per documentation of OCPP1.6, sampledValue of MeterValue data looks like this:

So, the type of value field should change from float to string.

Hey! I can't test StartTransaction and simulate a charging scenario. Connector keeps on "Preparing" status. Perhaps I missed something. Am I doing something wrong or is it bug?

Thank you!

Thanks for making this public! I've noticed that the start transaction with an ID Tag on connector 2 is starting the session on connector 1.

[2,"d9541e0d-92c9-4c92-88a6-bb8e9220b129","StatusNotification",{"connectorId":2,"errorCode":"NoError","status":"Preparing"}]
[3,"d9541e0d-92c9-4c92-88a6-bb8e9220b129",{"status":"Accepted"}]
[2,"0afa62c7-7145-4ba8-9fe2-0808fafa50a0","Authorize",{"idTag":"1001001"}]
[3,"0afa62c7-7145-4ba8-9fe2-0808fafa50a0",{"idTagInfo":{"status":"Accepted"}}]
[2,"27732646-4dd3-4fca-9f73-22bcf537ce77","StartTransaction",{"idTag":"1001001","meterStart":0,"connectorId":2,"timestamp":"2024-05-10T04:46:00.386Z"}]
[3,"27732646-4dd3-4fca-9f73-22bcf537ce77",{"transactionId":14,"idTagInfo":{"status":"Accepted"}}]
[2,"c51ea7a4-f07c-4987-a09e-4ce7687b971a","StatusNotification",{"connectorId":1,"errorCode":"NoError","status":"Charging"}]
[3,"c51ea7a4-f07c-4987-a09e-4ce7687b971a",{"status":"Accepted"}]

When StartTransaction runs, my backend server throws the following error:

ERROR:ocpp:Error while handling request '<Call - unique_id=7a987bfa-9774-4d2b-928e-9a72afd748d2, action=MeterValues, payload={'connectorId': 1, 'transactionId': 1, 'meterValue': [{'timestamp': '2024-04-25T17:41:04.844Z', 'sampledValue': [{'unit': 'Wh', 'value': 1736.9196833333333, 'location': 'Outlet', 'measurand': 'Energy.Active.Import.Register'}, {'unit': 'W', 'value': '180000', 'location': 'Outlet', 'measurand': 'Power.Active.Import'}, {'unit': 'W', 'value': '180000', 'location': 'Outlet', 'measurand': 'Power.Offered'}, {'unit': 'Percent', 'value': '17.7212', 'location': 'EV', 'measurand': 'SoC'}]}]}>'

Failed validating 'type' in schema['properties']['meterValue']['items']['properties']['sampledValue']['items']['properties']['value']:
    {'type': 'string'}

On instance['meterValue'][0]['sampledValue'][0]['value']:
    1736.9196833333333

It does not stop the Transaction, it's just on backend. I converted the 'value' type to string with toString() and it worked just fine

Dear Muhammed,

By the looks of it, you changed the rep name from ma-charge-point-simulator to ma-ocpp-simulator. The instructions have not been updated and the suggested git and docker commands don't work. Took me a while to figure out.

Thanks for your contribution.