THZ Tecalor (LWZ Stiebel Eltron) module support and code improvement.

[immi]

as written above i would use delta-h for your plot4

[willybauss]

Ok, now I understand what you're talking about. I don't know how to easily calculate the booster energy. Maybe you need to multiply booster power (related to actual booster stage) with duration.

May be easier to check the energy meter directly, e.g. using a Youless LS 110, which is supported by the JSONMETER module. For an electronic energy counter you may alternatively use a reading head (e.g. the one from Volkszaheler.org), supported by the OBIS module. If you need assistance for one of them please let me know.

I thought about checking the used energy via the THZ's built-in energy meter a few days ago. But then I compared the values of this counter with the energy meter's values, and the difference was far more than 10% ... not really useable.

[vinylsolution]

Hi,
today I setup fhem on a RPI and just connected successfully my THZ404 to fhem.

Now, I noticed a misbehaviour when reading out "sTimedate".
sTimedate returns the wrong weekday -> MONDAY but should be Saturday. All other sTimedate values are OK.
The THZ display shows the correct weekday.

Is this error a known issue?

My cofiguration:
THZ404 sFirmware version: 05.09
fhem
Latest Revision: 12991

File              Rev   Last Change

fhem.pl           12966 2017-01-05 20:26:04Z rudolfkoenig

00_THZ.pm         12633 2016-11-23 03:22:43Z immiimmi

[willybauss]

ups - same on my side (303 SOL, 4.19). Seems to be a bug.

[willybauss]

@kriforum:

you could try using the statistics module, e.g. something similar to

Code Auswählen Erweitern

define Statistik statistics Mythz
attr Statistik deltaReadings sHeatDHWTotal,sHeatHCTotal,sElectrDHWTotal,sElectrHCTotal,sBoostDHWTotal


Have a look into commandref for details.

[immi]

Now, I noticed a misbehaviour when reading out "sTimedate".
sTimedate returns the wrong weekday -> MONDAY but should be Saturday. All other sTimedate values are OK.
The THZ display shows the correct weekday.
Is this error a known issue?

bug-fix uploaded to svn
just update fhem
immi

[vinylsolution]

Thanks for the quick update but unfortunately it does not work for me, see screenshot.
I just typed "update" in fhem command line, maybe I am doing something wrong......

[vinylsolution]

Hi immi,
your fix works. It was my fault - I did not restart the system after update.
Sorry for being stupid.

[michaelk68]

Hi Immi,

I have a lwz 404 with a second display in the living room. Its assigned to hk2 for dew point monitoring while cooling.
My problem is, that I didn't get relHumidity and insideTempRC temperatures read in fhem, the values are 0 or the room set temp.
When I assign the second display to hk1, all is fine and I can see the values!
Firmware is 5.39.

what can I do?

Michael

[immi]

Hi Immi,
I have a lwz 404 with a second display in the living room. Its assigned to hk2 for dew point monitoring while cooling.
My problem is, that I didn't get relHumidity and insideTempRC temperatures read in fhem, the values are 0 or the room set temp.
When I assign the second display to hk1, all is fine and I can see the values!
Firmware is 5.39.
what can I do?
Michael

this is how I decode the HC1 and HC2

Code Auswählen Erweitern

sHC1
outsideTemp: -0.6 x08: -56.1 returnTemp: 24.4 integralHeat: -26 flowTemp: 25 heatSetTemp: 26.7 heatTemp: 24.5 seasonMode: winter integralSwitch: 101 opMode: normal roomSetTemp: 22 x60: 0 x64: 563.2 insideTempRC: 23.6 x72: 0 x76: 2.2 onHysteresisNo: 0 offHysteresisNo: 1 HCBoosterStage: 0

sHC2
outsideTemp: 6.1 returnTemp: 24.9 vorlaufTemp: -60 heatSetTemp: 25 heatTemp: 24.9 stellgroesse: -100 seasonMode: winter opMode: setback
HC1 and HC2 are respectively saved in register F4 and F5
I do not have 5.39 nor a second display, therefore I cannot help you much to improve the reverse-eng. of register F5.
immi

[willybauss]

Hi immi,

our (Michael and me) hope was that you could give him a hint on how to find the right register, containing the required values but for HC2. I don't have the knowledge to teach him. Maybe there's a link to an older contribution where you described it (?).

Willy

[TheTrumpeter]

Hello immi,

I found two more values, working at least with LWZ404SOL and fw5.39:

Set-power of heating circuit pump, 0A02CB, raw-value has to be divided by 10 to get %
set-power of DHW pump, 0A02CC, raw-value has to be divided by 10 to get %

[immi]

Hello immi,
I found two more values, working at least with LWZ404SOL and fw5.39:
Set-power of heating circuit pump, 0A02CB, raw-value has to be divided by 10 to get %
set-power of DHW pump, 0A02CC, raw-value has to be divided by 10 to get %

Great job
both register are unkown to my firmware.
I can restrict them to your firmware: how do you want to call them?
pXXPowerHCpump?
pXXPowerDHWpump?
immi

[immi]

Hi immi,
our (Michael and me) hope was that you could give him a hint on how to find the right register, containing the required values but for HC2. I don't have the knowledge to teach him. Maybe there's a link to an older contribution where you described it (?).

Hi Willy
I do not expect to find it outside F5 (HC2). There is still hope, because I have not decoded F5 completely
here you can find how to download the registers
https://forum.fhem.de/index.php/topic,33452.msg526493.html#msg526493
here you can find how to debug/interprete the register F4, which is very similar to F5
https://forum.fhem.de/index.php/topic,33211.msg528445.html#msg528445
immi

[TheTrumpeter]

I can restrict them to your firmware: how do you want to call them?
pXXPowerHCpump?
pXXPowerDHWpump?

Well, in German manual they're called "Pumpendrehzahl Warmwasser" and "Pumpendrehzahl Heizen". As they do not have a P-number, I'd say your suggestions are fine.