Schneider Charge - Wrong Power active import for few second

[Pi57]

Hi,

I'm using a Schneider Charge charger with OCPP 1.6 protocol on Home Assistant.
Sometimes, I got some wrong value for few seconds, more than 42000kW which is not possible.
How to know if this wrong value is coming from the charger or from OCPP integration ?

Thanks

[lostOzone]

Try to enable debug logging at the extension level.

Which measure hand is reporting this? Active Power Import?
What's the sample interval?

[Pi57]

Ok the log is now working, I will check after the next charge session tonight and hope that the bad value appear.
Let's see

[lostOzone]

Ok the log is now working, I will check after the next charge session tonight and hope that the bad value appear. Let's see

Any progress?

[Pi57]

Hi lostOzone,
Yes I was able to make a log, I can see the bad value. I have contacted Schneider in parallel, they ask for a log from ocpp and a diagnostic from the charger.
After analysis on there side, they tell me there is a bug and they will work on it.
So now I'm waiting for a new firmware.
Thanks lostOzone for your guidance and your support ;)

[lostOzone]

There is a new firmware version 2.4.0 but nothing mentionned about OCPP:

Schneider Charge firmware version 2.4.0
Date: 07-08-2026
• Document scope
This release note presents the new features and modifications added to Schneider Charge charging station.
Download the update file from the Schneider website
Contents
Enhancement:
o Improved T2S locking mechanism robustness, reducing the occurrence of T2S-related faults.
Known limitations:
o In some rare occasion, the timestamp of the "Transaction.end" message is being reported later than the
timestamp of the "StopTransaction" message

[Pi57]

Yes I also check regularly if a new firmware is available. No news from Schneider. I will re-ask in September to get some news.