EVlink Smart Wallbox [EVB1A22P4ERI] Incomplete OCPP meter values message

[nevesrodrigo]

I connect my EVlink Smart Wallbox, serial number EVB1A22P4ERI on my OCPP plataforma but the meter values message is incomplete, dont send unit identify the meter.

Messa i received for EVlink Smart Wallbox :

[connectorId] => 1
[meterValue] => Array
(
[0] => stdClass Object
(
[sampledValue] => Array
(
[0] => stdClass Object
(
[value] => 61
)

)

[timestamp] => 2024-01-05T15:38:45Z
)

)

[transactionId] => 101685

See below a example of a correct message:

{
   "connectorId": 1,
   "transactionId": 1344615480,
   "meterValue": [
        {
          "timestamp": "2022-05-20T10:39:19.657Z",
          "sampledValue": [
           {
             "value": "12903.0",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Energy.Active.Import.Register",
             "location": "Outlet",
             "unit": "Wh"
            },
            {
             "value": "50000.0",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Power.Active.Import",
             "location": "Outlet",
             "unit": "W"
            },
            {
             "value": "50.0",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Current.Import",
             "location": "Outlet",
             "unit": "A"
            },
            {
             "value": "63.0",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "SoC",
             "location": "EV",
             "unit": "Percent"
            },
            {
             "value": "298.8",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Temperature",
             "location": "Body",
             "unit": "K"
            },
            {
             "value": "270.4",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Voltage",
             "location": "Inlet",
             "unit": "V"
            },
            {
             "value": "60.0",
             "context": "Sample.Periodic",
             "format": "Raw",
             "measurand": "Frequency",
             "location": "Inlet"
          }
        ]
      }
    ]
  }

• Value: This is the actual meter value that was measured. In the case of 20 kW, this file will show “20”. Be careful however, as OCPP requires a String format.
• Context: Here, OCPP differentiates whether the meter value is clock aligned “Sample.Clock”, session-related meter value “sample.Periodic, or any other type.
• Format: As OCPP sends the value as String, this format field specifies the format of that particular value. “Raw” refers to either an integer or decimal value and “SignedData” refers to an encoded data block. “Raw” is more typical.
• Measurand: Refers to the type of measurement. In other words, it tells us what type of value we are receiving. Typically, charge points send energy (“Energy.Active.Import.Interva”), power (“Power.Active.Import”), and current (“Current.Import”). OCPP specifies over 22 measurands. This is why sampledValue can contain several measurands per message.
• Phase: Refers to the electrical phase where the charge point measured the data point. Either the measurand was taken at a specific phase (e.g. “L1”), between phases (e.g. “L1-L2”), or independent for any phase. Especially for energy related measurands (voltage, current, etc.) this becomes important.
• Location: Not every meter value is measured at the same location. Therefore, the OCPP message specifies the exact location, such as “Cable”, “Inlet”, or “Body”.
• Unit: As the Value field doesn’t give us any information about the unit, OCPP has this separate unit field. Each measurand can have different values. Energy can have “kWh” or “Wh”. OCPP specified over 16 unit types including Percentage, Ampere, Celsius, Power, and more.

I install the last firmware version:

https://www.se.com/br/pt/download/document/GEX9564800-R8Run7/

Firmware package to upgrade EVlink Smart Wallbox station

Data: 31 Maio 2023 | Tipo: Firmware

Idiomas: Inglês | Versão: 3400-7

Sistemas operacionais: Firmware

Referência do Documento: GEX9564800-R8Run7

Can you help me?

[nevesrodrigo]

Anyone else having this problem?