Schneider EVLink Smart Wallbox

[jolas-rui]

Hello Everyone

I am using Version v0.10.9.

Although I have correct connection between the charger and HA, I have plenty of values that are coming as "unknown" or "0".

I have checkecked the measurands that are supported by OCPP from the Schneider's connectivity manual, that can be found on this link:

https://download.schneider-electric.com/files?p_Doc_Ref=GEX1969200&p_enDocType=Other+technical+guide&p_File_Name=GEX1969200-09_EVlink+Pro+AC_OCPP+Protocol+Connectivity+Guide.pdf

I get this debug log, saying that the very same parameters that are mentioned to be supported on Schneider's manual are being rejected:

2025-12-16 15:16:51.999 DEBUG (MainThread) [custom_components.ocpp] '3N194540553D1' measurands set manually to Current.Import,Current.Offered,Energy.Active.Import.Register,Energy.Reactive.Import.Register,Frequency,Power.Active.Import,Power.Offered,Voltage
2025-12-16 15:16:51.999 DEBUG (MainThread) [custom_components.ocpp] '3N194540553D1' manual measurands set not accepted (status=Rejected); using charger's value

Am I missing something?

Thanks in advance

Rui

[jolas-rui]

I made firmware update on the charger to 3.4.0.10 and it got better in terms of getting some values for diagnostics. But still not working correctly, as I got a very similar message to what I had before:

2025-12-17 19:39:33.181 INFO (MainThread) [ocpp] 3N194540553D1: send [2,"14ce7221-ca21-4c22-b715-9dcd0868ff5a","ChangeConfiguration",{"key":"MeterValuesSampledData","value":"Current.Import,Current.Offered,Energy.Active.Import.Register,Energy.Reactive.Import.Register,Frequency,Power.Active.Import,Power.Offered,Voltage"}]
2025-12-17 19:39:33.207 INFO (MainThread) [ocpp] 3N194540553D1: receive message [3,"14ce7221-ca21-4c22-b715-9dcd0868ff5a",{"status":"Rejected"}]
2025-12-17 19:39:33.211 DEBUG (MainThread) [custom_components.ocpp] '3N194540553D1' measurands set manually to Current.Import,Current.Offered,Energy.Active.Import.Register,Energy.Reactive.Import.Register,Frequency,Power.Active.Import,Power.Offered,Voltage
2025-12-17 19:39:33.211 DEBUG (MainThread) [custom_components.ocpp] '3N194540553D1' manual measurands set not accepted (status=Rejected); using charger's value
2025-12-17 19:39:33.214 INFO (MainThread) [ocpp] 3N194540553D1: send [2,"f679f021-b711-41a5-8d13-34ca7b9a0dd9","GetConfiguration",{"key":["MeterValuesSampledData"]}]

Any idea on what I could be doing wrong somewhere?

Thanks !

[drc38]

Try removing 1 measurand at a time until the charger accepts the configuration. At a guess Voltage could be the issue as Phase is not bracketed.

[jolas-rui]

Thanks for the feedback. I gave it a try and removed voltage and then all the others. Didn't get better. While I was testing one by one, I noticed that when I went for manual selection of OCPP measurands, the only one that is actually already pre selected was "Energy. Active.Import.Register". Also, on the log, you can see this entry:

36m2025-12-18 19:47:04.952 DEBUG (MainThread) [custom_components.ocpp] '3N194540553D1' allowed measurands: 'Energy.Active.Import.Register'

The value that I have for it is actualy the energy that was booked on the previous session, as you can see from the charger's log:

Is there something that I should do on the charger side in order to enable these values or is it on the HA side?
Thanks!
Rui

[drc38]

You'd need to ask the manufacturer why it is not accepting the measurand configuration or find another user who has one and can help out.

[jolas-rui]

Hello,
After looking up further documentation provided by Schneider and then coming back to the integration's documentation, I managed to go a step further. By doing this command in "Actions" at HA, I managed to get it going:

action: ocpp.configure
data:
  devid: charger
  ocpp_key: MeterValuesSampledData
  value: "Current.Import,Current.Offered,Energy.Active.Import.Register,Power.Active.Import,Voltage"

For some reason Frequency, Power.Offered and Energy.Reactive.Import.Register were not accepted by the charger, but I don't know if I will need those items for my next steps.
Now it looks like this:

Thanks for the support