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

[andy1986]

Sorry for my late answer. I tried it now with an old fritz box and ser2net.
Now i get this messages:

2019.07.14 17:31:14 1: 192.168.178.242:2003 disconnected, waiting to reappear (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 reappeared (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 disconnected, waiting to reappear (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 reappeared (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 disconnected, waiting to reappear (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 reappeared (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 disconnected, waiting to reappear (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 reappeared (Mythz)
2019.07.14 17:31:15 1: 192.168.178.242:2003 disconnected, waiting to reappear (Mythz)

Any Ideas?

[immi]

I have 3 questions

1) does your fritz regognize the usbserial?
you can test it like this

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root@fritz:/var/mod/root# dmesg |grep tty
[   29.264000] usb 2-2: FTDI USB Serial Device converter now attached to ttyUSB0


2) is it working with fhem and sometime you get errors?
3) how often do you get the errors?

i configured my ser2net like this

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2003:raw:500:/dev/ttyUSB0:115200 NONE 1STOPBIT 8DATABITS


[andy1986]

Hi Immi,

thanks for your answer:

1.) root@fritz:/var/mod/root# dmesg |grep tty
console [ttyS0] enabled, bootconsole disabled
ttyS0 at MMIO 0x8610e00 (irq = 15) is a PORT_16550A
kdsld: ttychannel: ldisc 8 registered

-> I need to install USB Driver on the freetz or? How could i do that?

2.) No, not working
3.) The errors came up every second...

[immi]

well ... it seams you understood the problem in you fretz yourself

-> I need to install USB Driver on the freetz or? How could i do that?

you need to know which chipset you have in the usbserial and compile it in freetz
in my case ftdi
I also compiled other chipsets just in case

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root@fritz:/var/mod/root# ls /lib/modules/2.6.28.10/kernel/drivers/usb/serial/*
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/ch341.ko
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/cp2101.ko
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/ftdi_sio.ko
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/option.ko
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/pl2303.ko
/lib/modules/2.6.28.10/kernel/drivers/usb/serial/usbserial.ko

once you have loaded the driver you should see it like this

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root@fritz:/var/mod/root# lsmod |grep ftdi
ftdi_sio               32816  1
usbserial              27952  3 ftdi_sio
usbcore               120352  5 ohci_hcd,ehci_hcd,ftdi_sio,usbserial


immi

[andy1986]

Crazy, i complied now every driver:

root@fritz:/var/mod/root# ls /lib/modules/2.6.32.41/kernel/drivers/usb/serial/*
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/cp210x.ko
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/ftdi_sio.ko
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/ipaq.ko
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/option.ko
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/pl2303.ko
/lib/modules/2.6.32.41/kernel/drivers/usb/serial/usbserial.ko

but it doesnt work.
Any more USB drivers there?

EDIT: Just to clarify, i connect the usb port from the FB to the usb port from the Tecalor 403.

[andy1986]

Solved it. I needed to do that:

modprobe cp210x

Now its stable green.
For what is it?

[immi]

your module does not load automatically
there is another command to force loading

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insmod /lib/modules/2.6.32.41/kernel/drivers/usb/serial/cp210x.ko

it is equivalent to modprobe; use what youprefer

Now its stable green.

happy that it is working now

For what is it?

do not understand your question

[joker4791]

your module does not load automatically
there is another command to force loading

Code Auswählen Erweitern


insmod /lib/modules/2.6.32.41/kernel/drivers/usb/serial/cp210x.ko

it is equivalent to modprobe; use what youpreferhappy that it is working now

do not understand your question

This is the serial chip on your THZ...

[sunrise]

Hi,

This is my first trip into fhem, so please bear with me. I run fhem on Raspbian Buster (RPI2) with USB2-RS232 adapter (Prolific) and ser2net, connected with a Tecalor THZ 303 SOL heatpump from year 2008. The firmware is v2.16. Fhem doesn not offer this version, so I selected 2.14, which seems to be closest. However, I wonder if I would profit from an exactly matching firmware version in the THZ module. What would be needed to add 2.16 support to THZ? Maybe I can help. Right now, I get the readings that seem to be correct; however, I am not sure if I miss something because of the FW differences. Thanks for your hints!

[immi]

hi sunrise
happy you got it working;
I have a newer tecalor, therefore I never digged deep in the 2.x firmwares.
I implemented something for 214 and 206... because I received feedbacks from people with this heatpumps.
Read the whole topic and you will find out who has older tecalor.
By reading you will understand the reverseengineering process.
If you tell me which register differ in your firmware (e.g. how to change line 67 to 169), I will make a version for you.

see the contribution from andre.k
https://forum.fhem.de/index.php/topic,33211.msg695420.html#msg695420
immi

[sunrise]

Hi immi,

Thanks for your advice and the corresponding code block from andre.k. I will look into this. Some years ago, I spent some time with Robert's heatpump monitor and got at least a basic understanding of what is sent to the heatpump and what is expected back (and it worked, too). So hopefully, I can dig my way through this and offer some adjustments for the 2.16 FW. It may take a while, though.

[sunrise]

Aus dem geschlossenen Thread "THZ / LWZ Tecalor Stiebel Eltron Heizung":
(sorry, die Zeiten der unten zitierten Beiträge stimmen nicht, weil man aus einem geschlossenen Thread nicht so einfach woanders zitieren kann)

... habe der Anlage gesagt sie ist ne THZ 404
... Man kann auch aus der THZ eine LWZ machen...

ich hab im Punkt Inbetriebnahme Modell drin. Das kann man verändern.

@belu

Kannst Du das bitte einmal genauer erläutern?
Ich habe eine THZ 303 SOL (Software 2.16) aus dem Jahre 2008, ohne iPod-Steuerung, d.h. nur dieses alte einfache LED-Display mit einigen Knöpfen.
Danke!

Can you please explain this in more detail?
I have a THZ 303 SOL (software 2.16) from 2008, without the iPod wheel, i.e. just that old plain LED display with several buttons.
Thanks!

[Jackie]

Hallo,

kann mir jemand erklären, warum die "heatSetTemp" aus dem Reading SHC1 immer um ca. 10 Grad nach oben geht, sobald die Außentemperatur einen gewissen Wert überschreitet? In meinem Screenshot sieht man das recht schön, heatSetTemp ist die graue Kurve, die Außentemperatur rot. Das passiert immer dann, wenn die Außentemperatur sich der eingestellten "Solltemperatur" der Heizung nähert, ich verstehe nur nicht, warum, und ob das ein Fehler der Heizung oder im FHEM Modul ist, bzw. warum es überhaupt zu dem Effekt kommt.

Könnt ihr mir weiterhelfen? Danke!

[TheTrumpeter]

Vielleicht springst Du da zwischen Sommer- und Winterberrieb herum?

[Jackie]

Danke, es scheint tatsächlich so zu sein dass sich das Reading seasonmode auf Sommer setzt, aber ich verstehe es trotzdem nicht, ich habe ja für Sommer / Winter keine verschiedenen Heizkurven gesetzt, sondern ich kann in der LWZ ja nur eine Heizkurve vorgeben. Oder übersehe ich etwas?