Set the minimum SOC through API

Modifications
1

Hi - home-user with 3x Pelio batteries and Multiplus II
I want to control charging at night by setting the minimum SOC and “Grid current limit” (.e.g. not charge batteries when my car is charging).
I can read all setting of the system (using the API) but I see no way (except of course manually) to set these values …

Also tried MQTT explorer
N/c0619ab3d55b/system/0/Control/ActiveSocLimit
But if I publish a new value it get changed back to the original after few seconds

Any help much appreciated

2

That is a read-only value iirc.
Look here:
N/cxxxxxxxxxxxx/settings/0/Settings/CGwacs/BatteryLife/MinimumSocLimit

1 Like
3

I publish this on N/xxxxxxxx/settings/0/Settings/CGwacs/BatteryLife/MinimumSocLimit
{
“max”: 100,
“min”: 0,
“value”: 81
}

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But If I read the API the value remains 80%
},
{
“idSite”: 434674,
“timestamp”: 1725289795,
“Device”: “Gateway”,
“instance”: 0,
“idDataAttribute”: 334,
“description”: “ESS Minimum SOC (unless grid fails)”,
“formatWithUnit”: “%.1F %%”,
“dbusServiceType”: “settings”,
“dbusPath”: “/Settings/CGwacs/BatteryLife/MinimumSocLimit”,
“code”: “H4ms”,
“bitmask”: 0,
“formattedValue”: “80.0 %”,
“rawValue”: 80,
“id”: 35
},
{

Using POSTMAN I do see 81% coming in

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4

It only increments in 5% chunks on the interfaces.

5

Isn’t the write being done by starting with a “W” ??
Meaning: W/cxxxxxxxxxxxx/settings/0/Settings/CGwacs/BatteryLife/MinimumSocLimit
I may be wrong, never used MQTT… If so, sorry…

6

With explorer you just have to paste in the json and push publish to that topic. Worked fine for me that route.

7

Altough an experienced IT-er MTTQ was completely new for me today.

Indeed
W/xxxxxxx/settings/0/Settings/CGwacs/BatteryLife/MinimumSocLimit
Did the trick

Many thanks all
Saved my day :slight_smile:

1 Like
8

Keep in Mind, that there are two Soc Limits. (Plus one Readonly)

From the Naming I assume:

  • MinimumSocLimit: Soc Limit to use if grid disconnects
  • SocLimit: Soc Limit to use, while grid is present.
  • ActiveSocLimit (readonly): Soc Limit taking the above two, plus increments due to OperationMode “BatteryLife” into account.