Enhancement request: Smart Grid

[mhuiskes]

In a recent update of the integration an input has been added Smart Grid which is an on/off toggle. When Smart Grid is enabled, it has four operating modes.

References: (Bundesverband Wärmepumpe, BWP) https://www.waermepumpe.de/fileadmin/user_upload/bwp_service/SG_ready/SG_Ready_Schnittstelle_1.1.pdf

In Luxtronik these are mapped to EVU1 and EVU2
https://mw.ait-group.net/files/docs/NL/A0340/83055600.pdf

| EVU 1 | EVU 2 | Bedrijfstoestand |
| AAN (1) | UIT (O) 1 | (= EVU-blokkering)
| UIT (O) | UIT (O) | 2 (= Verlaagde werking)
| UIT (O) | AAN (1)| 3 (= Normaal bedrijf)
| AAN (1) | AAN (1) 4 (= Verhoogde werking)

The enhancement request is to provide a status entity (sensor) which mode indicates the smart grid operating status, when smart grid is enabled.

[AJediIAm]

Thanks for the info. I'm still struggling to get smart grid and power limiting to work, probably because these entities are missing. I know they exist as hardware relays, but I have not yet found a software parameter to create a sensor or entity for this.

[rhammen]

@mhuiskes I don't know the luxtronik parameter or calculation that contain the EVU1 and EVU2 status. So you need to help us: can you tell us - or figure out - the luxtronik calculation or parameter name/number for EVU1 and EVU2?
Once these are known, we can implement your request.

[AJediIAm]

I found some references here: https://community.home-assistant.io/t/luxtronik-operate-switch-heating-values-luxtronik-legacy/178547

• id: ID_WEB_EVUin
• id: ID_WEB_ZIPout
• id: ID_WEB_ZUPout
• id: ID_WEB_FP2out

[mhuiskes]

Hi @rhammen,

EVU1 and EVU2 are inputs. On Alpha Innotec these are mapped to pins IN3 and IN4 of board A1. In the default use case (mainly in Germany) these get driven by the energy company, but with a relais these can be driven locally.

The combination of these two bits results into 4 values (1,2,3,4) which map to 4 logical states: EVU-block, Reduced, Normal, Boosted.
In the Web interface of Luxtronik this value is displayed as part of the list of inputs (when 'smart grid' is enabled)

Ingangen
ASD Aan
EVU Uit
HD Uit
MOT Aan
PEX Aan
Vrijgave koeling Aan
Analoog-In 21 0.01 V
Analoog-In 22 0.01 V
HD 7.74 bar
ND 8.21 bar
Debiet --- l/h
Smart Grid 2

I don't know the name of that parameter. The HTML of the page refers to:
<td class="output_field_long">Smart Grid</td>
<td id="0x43cd8564" class="output_field" colspan="2">2</td>

From https://github.com/Bouni/python-luxtronik/blob/main/luxtronik/parameters.py

I've found these candidates:

        1030: Unknown(["ID_Einst_SmartGrid", "Unknown_Parameter_1030"]),

        1064: Unknown(["ID_Einst_SmartHomeID", "Unknown_Parameter_1064"]),
        1065: Unknown(["ID_Einst_SmartHK", "Unknown_Parameter_1065"]),
        1066: Unknown(["ID_Einst_SmartMK1", "Unknown_Parameter_1066"]),
        1067: Unknown(["ID_Einst_SmartMK2", "Unknown_Parameter_1067"]),
        1068: Unknown(["ID_Einst_SmartMK3", "Unknown_Parameter_1068"]),
        1069: Unknown(["ID_Einst_SmartWW", "Unknown_Parameter_1069"]),
        1070: Unknown(["ID_Einst_SmartDefrost", "Unknown_Parameter_1070"]),

        1078: Unknown(["ID_Einst_SmartPlusHz", "Unknown_Parameter_1078"]),
        1079: Unknown(["ID_Einst_SmartMinusHz", "Unknown_Parameter_1079"]),
        1080: Unknown(["ID_Einst_SmartPlusMK1", "Unknown_Parameter_1080"]),
        1081: Unknown(["ID_Einst_SmartMinusMK1", "Unknown_Parameter_1081"]),
        1082: Unknown(["ID_Einst_SmartPlusMK2", "Unknown_Parameter_1082"]),
        1083: Unknown(["ID_Einst_SmartMinusMK2", "Unknown_Parameter_1083"]),
        1084: Unknown(["ID_Einst_SmartPlusMK3", "Unknown_Parameter_1084"]),
        1085: Unknown(["ID_Einst_SmartMinusMK3", "Unknown_Parameter_1085"]),

What parameter is the current On/Off for smartGrid? I'm guessing ID_Einst_SmartGrid?

[mhuiskes]

Another candidate: "1031 ID_Einst_P155_HDS ": "2",
Simply because it has value "2" and I'm currently running reduced mode. I'll monitor and see what happens later tonight
source: Diagnostics file from integration

[AJediIAm]

Another candidate: "1031 ID_Einst_P155_HDS ": "2", Simply because it has value "2" and I'm currently running reduced mode. I'll monitor and see what happens later tonight source: Diagnostics file from integration

Do you use the relays for EVU 1 and 2? I have a Shelly with has a isolated relay. If that works, I can install it to test the functionality.

[mhuiskes]

I have EVU1 and EVU2 connected to a shelly relais indeed. Warning: if you work directly on the A1 board: this works with 230V AC on the inputs. I got my installer to place the cable on the board

[mhuiskes]

No go on 1031 ID_Einst_P155_HDS

But this looks nice: https://github.com/roelven/luxtronik-logger

[AJediIAm]

No go on 1031 ID_Einst_P155_HDS

But this looks nice: https://github.com/roelven/luxtronik-logger

Link doesn't work for me

[Firetribe]

https://github.com/roelven/luxtronik-logger

Looks to be the same link, but works for me

[AJediIAm]

I have EVU1 and EVU2 connected to a shelly relais indeed. Warning: if you work directly on the A1 board: this works with 230V AC on the inputs. I got my installer to place the cable on the board

Do you have a wiring diagram I can add to the documentation? I expect this is a very interesting feature for many users and I'm working on better user documentation.

[siedi]

I have EVU1 and EVU2 connected to a shelly relais indeed. Warning: if you work directly on the A1 board: this works with 230V AC on the inputs. I got my installer to place the cable on the board

Do you have a wiring diagram I can add to the documentation? I expect this is a very interesting feature for many users and I'm working on better user documentation.

This is officially documented in the Alpha innotec installation manual. Beyond that, I would not recommend documenting it here. As @mhuiskes has already mentioned, this deals with 230 VAC. If someone wants to do it themselves, they will find the documentation for it. As I said, I would not document it here for liability reasons. In addition, there are different boards. And if the EVU lock has already been installed by the electricity companies, this must also be considered separately.