My project with domoticz and CAREL API

[cortex]

Hello Domoticz Team,

I'm automatician in building heating. I'm french, so excuse me for my bad english.
I developpe regulation on CAREL regulator.
I discovered Domoticz a month ago.

This is my architecture in my home:


For the moment, the controller Carel controls the boiler and water heaters.
I use two sensors because I have two zones in my home. The weekly time and set are in the CAREL controller.
Today, with "mbtget" modbus TCP/IP driver, domoticz send the Oregon sensor value in my Controller CAREL. I use LUA script.
My final idea is Domoticz manage my CAREL, or Domoticz control the boiler and water heaters.

For the moment I would like to retrieve the values in Domoticz of the two temperature sensors on my CAREL controllers through the Modbus TCP / IP. How can I do in domoticz ?
Have you an idea.

Regards, Thomas.

[Conn-artist]

Hi Thomas,

For the moment I would like to retrieve the values in Domoticz of the two temperature sensors on my CAREL controllers through the Modbus TCP / IP. How can I do in domoticz ?
Have you an idea.

I guess that depends on what the Modbus has to offer: what kind of TCP/IP interface does it use?

There's a whole lot of interesting stuff on the Wiki (http://www.domoticz.com/wiki/Main_Page) - perhaps it gives you inspiration

[cortex]

Hye !

My idea is:
with LUA script, a variable is initialise whith "mbtget" value (read mode).
After that, I have a variable in LUA script, how can I have this variable in domoticz dashboard ?

[Conn-artist]

Like so?

http://www.domoticz.com/wiki/User_variables

[papoo]

Domoticz support SNMP perhaps your carel controler support SNMP too

[Egregius]

If it's about reading temperature I would store the values in a dummy thermometer, will be nicer on the dashboard (and graphs...).

Today, with "mbtget" modbus TCP/IP driver, domoticz send the Oregon sensor value in my Controller CAREL.

So that means you can sent stuff to the controller? Does it also provide a json/xml api to read stuff?

With json.htm?type=command&param=udevice&idx=123&nvalue=0&svalue=21.5 you can sent temperatures to domoticz.

[Regis]

Bonjour

J'utilise moi aussi au automate CAREL PCO5 pour contrôler mon système de chauffage, DOMOTICZ et une Raspberry Pi pour la domotique.
Je cherche un moyen de faire communiquer le PCO et DOMOTICZ en modbus TCP ou autre pour pouvoir échanger des données voire donner des informations météo a ma régulation.

bref je suis à la recherche d'une solution.

[cortex]

Bonjour Regis,

je peux t'aider, j'utilise mbtget pour l'échange de donnés Modbus TCP-IP entre le CAREL et Domoticz.
https://github.com/sourceperl/mbtget

J'utilise cette fonction dans une tache CRON et dans des scripts LUA de domoticz....

Domoticz communique également en Modbus TCP/IP avec un S7-1200