Marstek Battery plugin Topic is solved

[eddieb]

Sorry, what do you mean ?

[eddieb]

found it !

had /Marstek as topic, it seems to be working now

[RNEE]

you have to leave out the slashes !

happy to hear you got it working to!

you can easily add your own readings from registers.

[eddieb]

Hi @RNEE
it is indeed working. But, not all, for example :
MPWR is not returning any value thru mqttmapper...

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{"params":{"dir":"up","id":"02103225071800005978","r_data":[{"name":"batterySOC","value":"31","err":"0"},{"name":"ACpower","value":"289","err":"0"},{"name":"MTCE","value":"10185","err":"0"},{"name":"MTDE","value":"8243","err":"0"},{"name":"MIT","value":"385","err":"0"}]}}

Screenshot 2025-08-02 at 05.30.11.png (28.05 KiB) Viewed 224 times

the MQTT message shows a value of 239, which is not displayed.

[RNEE]

I have that too.

But the power is displayed correctly in energy dashboard (and calculated with) and on my dashboard (when starred) and on the setup>devices tab.



I dont know why the values can’t be seen in the forementioned device itself, there is also no logging.
I tried different device numbers but this one worked best.

(And yes i still use the default dasboard….)

[eddieb]

Ok,
the reason for not showing up is that an attribute is not filled for this device.
each device type has a certain amount of attributes that can be filled.
I still can not find a list of devices with there attributes and how to fill them ...
in the dzevents examples there is

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        -- kWh, Electricity (instant and counter)
        --      actualWatt: Number. Actual usage in Watt.
        --      counterToday: Number.
        --      updateElectricity(power, energy): Function. Supports command options.
        --      usage: Number.
        --      WhToday: Number. Total Wh usage of the day. Note the unit is Wh and not kWh!
        --      WhTotal: Number. Total Wh usage.
        --      WhActual: Number. Actual reading in Watt. Please use actualWatt

and

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        -- P1 Smart meter
        --    counterDeliveredToday: Number.
        --    counterToday: Number.
        --    usage1, usage2: Number.
        --    return1, return2: Number.
        --    updateP1(usage1, usage2, return1, return2, cons, prod): Function. Updates the device. Supports command options.
        --    usage: Number.
        --    usageDelivered: Number.

but I don't know if that is the way to go, perhaps one of the more experianced people around here ...
we need to map those values from mqttmapper ...

[waltervl]

Do not use dzvents as a reference here but the Domoticz API calls.
Your MPWR device is an General kwh (or electricity instant+counter) device.
It needs 2 inputs: https://wiki.domoticz.com/Domoticz_API/ ... d_counter)

POWER = current power (W)
ENERGY = Integer, total cumulative energy in Watt-hours (Wh)
(Energy Read type (use edit button to change): Default: From Device. If the device is not able to send the ENERGY counter values you choose "Energy read : Computed". This will ignore ENERGY counter values and Domoticz will calculate the Energy (kWh) internally based on the (previous/current) POWER (Watt) values. By design this is less accurate then using the ENERGY counter when using them "from Device".)

Domoticz will calculate the today values based on the delta's in the total cumulative energy of today.

For Counters the standard counter dividers apply (menu setup - settings - tab counters)

Note: This device will show in Domoticz as type "General, kWh"

[eddieb]

tnx @walthervl

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http://IP/json.htm?type=command&param=getdevices&rid=225

that is the battery device, gives (not complete)

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{
			"AddjMulti" : 1.0,
			"AddjMulti2" : 1.0,
			"AddjValue" : 0.0,
			"AddjValue2" : 0.0,
			"BatteryLevel" : 255,
			"Counter" : "102.150",
			"CounterDeliv" : "83.230",
			"CounterDelivToday" : "2.430 kWh",
			"CounterToday" : "0.300 kWh",
			"CustomImage" : 0,
			"Data" : "102150.0;0;83230.0;0;0;0",
			"Description" : "",
			"Favorite" : 0,
			"HardwareDisabled" : false,
			"HardwareID" : 14,
			"HardwareName" : "Marstek",
			"HardwareType" : "MQTT mapper with network interface",
			"HardwareTypeVal" : 94,
			"HaveTimeout" : false,
			"ID" : "Battery",
			"LastUpdate" : "2025-08-02 10:23:34",
			"Name" : "Marstek - Battery",
			"Notifications" : "false",
			"PlanID" : "18",
			"PlanIDs" : 
			[
				18
			],
			"Protected" : false,
			"ShowNotifications" : true,
			"SignalLevel" : "-",
			"SubType" : "Energy",
			"SwitchTypeVal" : 0,
			"Timers" : "false",
			"Type" : "P1 Smart Meter",
			"TypeImg" : "counter",
			"Unit" : 6,
			"Usage" : "0 Watt",
			"UsageDeliv" : "0 Watt",
			"Used" : 1,
			"XOffset" : "0",
			"YOffset" : "0",
			"idx" : "225",
			"price" : "-0.5190"
		}
	

in the Data attribute, not all is filled ...

same for the MPWR ...

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{
			"AddjMulti" : 1.0,
			"AddjMulti2" : 1.0,
			"AddjValue" : 0.0,
			"AddjValue2" : 0.0,
			"BatteryLevel" : 255,
			"CustomImage" : 0,
			"Data" : "-91, -91.0",
			"Description" : "",
			"EnergyMeterMode" : "",
			"Favorite" : 0,
			"HardwareDisabled" : false,
			"HardwareID" : 14,
			"HardwareName" : "Marstek",
			"HardwareType" : "MQTT mapper with network interface",
			"HardwareTypeVal" : 94,
			"HaveTimeout" : false,
			"ID" : "MPWR",
			"LastUpdate" : "2025-08-02 10:24:52",
			"Name" : "Marstek - MPWR",
			"Notifications" : "false",
			"PlanID" : "18",
			"PlanIDs" : 
			[
				18
			],
			"Protected" : false,
			"ShowNotifications" : true,
			"SignalLevel" : "-",
			"SubType" : "kWh",
			"SwitchTypeVal" : 0,
			"Timers" : "false",
			"Type" : "General",
			"TypeImg" : "current",
			"Unit" : 1,
			"Used" : 1,
			"XOffset" : "0",
			"YOffset" : "0",
			"idx" : "220"
		}

Both fields in the Data attribute contain a value, not sure why it is not displaying them

[RNEE]

@eddib : ive gone through al that, but the final result was not usable for the task.
i can accept that something doen't work in one way , but works great for my needs.


@waltervl , there is only one value. any other counter that is useable? (also in the power dashboard)

[waltervl]

What value is available from Marstek, the power (in Watt) or the total counter of energy (in Wh)?

if the power is missing then use a normal counter device.
If the energy is missing you could send energy as hardcoded 0 and put the device on computer so it will calculate the energy from the given powers over time.

[RNEE]

The actual power in watt is avaiable , in my opinion wh does not work here. These are different values and are read in the P1 device.

For me the current results are fine they show me exactly what i want , per second.

We should not forget this is basicly a work around.

But i like it that much, and trust its outcome, that my next project will be my Goodwe convertor. I already orderd a dr134.
There is a very nice programm by Janjaap for reading the Goodwe Api but data in the Goodwe cloud are old, and sometime not avaiable.

Data for grid and battery are on a near real time basis, for my solarpanels are minuts behind.
That makes the energy dashboard useless.

[waltervl]

To get a proper display of the Watt you can still use this type of Domoticz device but you have to send 2 values to the device to get proper display. The energy value can always be 0.
Or use the electricity usage device that only uses the Watt value, but that has no history logging....

[RNEE]

Yes that did it :
Changed MPWR to : "mapping": {"item": "params/r_data/2/value;~0", "multiplier": -1, "digits": 1}

Now the actual power value is displayed in the device mentioned before : T: 0.000 kWh, A: -467 Watt.

Since the power is positive and negative Total will be the balance (loss went to heat)

I prefer the data from the P1 Battery device witch splits positive and negative and show really nice graphs.

Edit :
have it running now for some time, but results (total and graph, settings>device tab) are confusing, i personally will not use the new representation.

[Haaibaai]

Do I really need the Ethernet version of PUser for this to work, can it also work with the WIFI version? My batteries are in my garage and I don't really want to connect Ethernet to the garage as it would involve drilling a hole in the ground.

[eddieb]

I also have a wifi version of the adapter, I will power it on and compare

[eddieb]

I just tried the PUSR-DR164 and at least the menu's are totally different.
I doubt if that one is going to work, perhaps some other device ????

there is some mqtt but no "point" menu where the modbus registers can be configured
no edge menu either ...

Screenshot 2025-08-03 at 15.21.18.png (227.98 KiB) Viewed 88 times

[RNEE]

I have the dr164 too and it hasn’t edgecomputing.

Only the latest dr134 has it.

I asked Puser and they confirmed that. I told them there could be a hugh demand for an edgecomputing wifi device.
Maybe in the future.

You can use a ethernet powerline adapter. TP-link has several sets.
I tested one set already for mij solarpanels and that worked well.

[eddieb]

I also use a powerline adapter to get to my garage where my Marstek is ...
the wifi part of that powerline adapter makes the Marstel connection to my wifi way more stable too !!!
So it is just waiting for PUSR to release firmware for the DR164 that supports the same as the DR134

[RNEE]

I am drilling holes everywhere in my , before ethernet, house to get cat5e everywhere.

But for the Marstek in the garage it was quite easy as my meterkast is directly connected to the garage. Just 2 holes, one for ethernet and one for connecting to a free 16amp group, where needed.

i am looking into a solution for the dr164. But i have to many projects and to little time.

Edit : i’am not using the Marstek app anymore…

[eddieb]

it would be nice if USR woulld combine the DR134 software with wifi and release an update for the DR164 that includes the functions needed ...