Add Proxon Heating System to HA via Modbus

Stroett · January 21, 2025, 3:25pm

I just uploaded the “Proxon” part of the dashboard to Github. (Dashboard_new.yaml)
Some automations are no more necessary.
and you need the integrations

bubble card
vertical stack-in card
button-card
card-mod
Theme bubble (not mandatory)

The topic about “Modbus schreiben”: I didn’t ask the support if there is a way to do that by myself. I was writing a message via the contact form and they called me back next morning and told me, that they have changed it remotely to “2”. So just give it a try.

das_chick · January 28, 2025, 1:51pm

just checked your repo, but found only the old dashboard

Stroett · January 28, 2025, 2:22pm

Hmmmm… don’t know what went wrong again.
now it should be available

das_chick · January 28, 2025, 3:16pm

now its there. thx so much!

Stroett · January 28, 2025, 4:13pm

no problem. just ask in case of questions.
I tried to have the information as compact as possible, since I wanted to use the same stack on my “home-page” as bubble-popup.
e.g. the temperatures. When I touch the temperature button, the temperature popup appears.

home-page

temperature popup

on the mobile phone it looks even better.
BR
Steffen

Stroett · February 4, 2025, 7:36pm

ne update available on GitHub (GitHub - Stroett/HA_config_Proxon)
…for those who are interested in…

sebastian3 · February 5, 2025, 6:43pm

You see this is what I asked some months ago. For me it is also read only but I don’t really bother right now. I just switch the PTCs individually.

Rick99 · February 6, 2025, 8:21pm

@Stroett - Hi, would you have any idea why my modbus connection using Waveshare Industrial USB to RS485 Converter is not working? I tried so many things I found but none are working.

Stroett · February 7, 2025, 9:17pm

Hi Rick,
sorry, I am also not the expert. I just used the parameter which was posted in this thread and it was working from the beginning.

KingPo · February 10, 2025, 1:15pm

Hey Rick99,
sorry for late response.
I just used the USB Adapter for troubleshooting purpose (in general Im using the Ethernet version).
So far I remembered only connecting the wires to these 3 pins, was fine.
Than it worked for me in the modus testing tool as also direct in home assistant.

flipkill1985 · February 18, 2025, 10:28am

Hello,

In your Github Project i think you missed your Binary Sensors for all Rooms:

binary_sensor.proxon_heizelement_status_*

if i dont set this via template or in one of the automations the Dashboard crash, i ficed this for my rooms with this.

- platform: template
  sensors:
    proxon_heizelement_status_wohnzimmer:
      friendly_name: "Proxon Heizelement Status Wohnzimmer"
      value_template: "{{ is_state('switch.proxon_heizelement_wohnzimmer', 'on') }}"
    proxon_heizelement_status_vanessa:
      friendly_name: "Proxon Heizelement Status Vanessa"
      value_template: "{{ is_state('switch.proxon_heizelement_vanessa', 'on') }}"
    proxon_heizelement_status_jan:
      friendly_name: "Proxon Heizelement Status Jan"
      value_template: "{{ is_state('switch.proxon_heizelement_jan', 'on') }}"
    proxon_heizelement_status_emma:
      friendly_name: "Proxon Heizelement Status Emma"
      value_template: "{{ is_state('switch.proxon_heizelement_emma', 'on') }}"
    proxon_heizelement_status_leoni:
      friendly_name: "Proxon Heizelement Status Leoni"
      value_template: "{{ is_state('switch.proxon_heizelement_leoni', 'on') }}"
    proxon_heizelement_status_flur:
      friendly_name: "Proxon Heizelement Status Flur"
      value_template: "{{ is_state('switch.proxon_heizelement_flur', 'on') }}"
    proxon_heizelement_status_schlafzimmer:
      friendly_name: "Proxon Heizelement Status Schlafzimmer"
      value_template: "{{ is_state('switch.proxon_heizelement_schlafzimmer', 'on') }}"

best regards Jan

Stroett · February 19, 2025, 4:36pm

Hi Jan,
you are right. Missed that in the configuration.yaml.
Should be now added on GitHub.

But you are not completely right.
The status is not, if the heating is allowed to turn on, but if its currently heating. That’s why the following templates should be correct.

- binary_sensor:
    - name: Proxon Heizelement Status Wohnzimmer
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(1) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Wohnzimmer

    - name: Proxon Heizelement Status Flur
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(2) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Flur

    - name: Proxon Heizelement Status Buero
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(4) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Buero

    - name: Proxon Heizelement Status Schlafzimmer
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(8) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Schlafzimmer

    - name: Proxon Heizelement Status Eline
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(16) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Eline

    - name: Proxon Heizelement Status Lean
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(32) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_Lean
      
    - name: Proxon Heizelement Status Hobbyraum
      state: "{% if states('sensor.proxon_heizelement_status') | int | bitwise_and(64) %}on{% else %}off{% endif %}"
      unique_id: proxon_heizelement_status_hobbyraum

for that you need in addition the following sensor via modes

#PTC's
    - name: "Proxon Heizelement Status"
      unique_id: proxon_heizelement_status
      address: 574
      scan_interval: 15
      data_type: int16
      input_type: input
      slave: 41

For questions, just ask
BR
Steffen

PeterSehrLustig · February 28, 2025, 10:11pm

Hi and thanks for sharing,
the address 574 is in my Case (Proxon FWT from Year 2021) 4x0574 Freitag #2 Zeit Minuten An ZL069:Zeitprogramm Luftmenge, so its part of the time-program…

Can you share some more informaition about the modbus address? Is it this one? Heizmodul 1 Relaistest T12:Test Binär “Bit9:R10
Bit8:R9
Bit7:R8
Bit6:R7
Bit5:R6
Bit4:R5
Bit3:R4
Bit2:R3
Bit1:R2
Bit0:R1”

Thanks alot

heikowtb · March 13, 2025, 6:22pm

Hi there,

great job all of you did here to connect the FWT to HomeAssistant. After reading very much, I thoght I give it a try. I have a FWT 2-R which seems not to be connected to the T300.

And I have another board on top of the unit:

X6 is already occupied by two cables (shouldn’t that be three?). X7 is free (but only has 2 pins).

Can I connect my waveshare-adapter also to X6?
Is the USB of any use?

I also sent an inquiry to Zimmermann, I keep you updated.

Best regards,
Heiko

heikowtb · March 14, 2025, 5:50pm

I also have this:

Perhaps the 2nd Bus?

charly166 · May 19, 2025, 10:58am

Hallo @PeterSehrLustig,
hallo @Stroett,

indeed I was wondering about this as well. For me it’s not clear, how to differentiate about the different tabs in the Excel-Sheet.
On Tab “Holding Register” there is at the address 4x0574 the value of “Freitag #2 …:” (like Peter said). But on the tab “Input Register” there is at the address 3x0574 the value of “Heizmodul 1 Relais Status”.

(at least I have no idea what’s the difference between these two excel tabs - sorry).

Has anyone a hint? Thanks in advance.

Best regards, Charly

charly166 · May 19, 2025, 11:23am

Hallo all,

I have an additional question regarding the switch proxon_heizelemente_global. What does this switch do? Does this switch activate all heating elements?
Nothing happens in the Proxon-App
Or do I have the problem with R/W (modbus write modus)?
Thanks in advance.

Best regards, Charly

Stroett · May 19, 2025, 3:46pm

Hi Charly,

this switch allows the heating elements to heat or not, depending on their own status.
Means … if the switch “proxon_heizelemente_global” is off, no all heating elements are off.
If the global switch is on, the elements are on or off depending to their own status.
Does it help?

and about the other question:
as I mentioned in the response message to Peter…
These are different register types. It’s explained on Wiki. I am also no expert in modbus

Stroett · May 19, 2025, 3:54pm

Oh … I am sorry. I totally missed your response
It is this one

Relais status

Stroett · May 19, 2025, 4:03pm

AHHHH now after reading the message from charty …
He is right. Yup were looking in the wrong register. You hav to differentiate between holding and input register.
Don’t ask about more details But this is also important the the config file. There you tell the input type … see below