Retrieve boilerstatus by OTGW, boiler controlled by on-off
Posted: Fri Dec 17, 2021 3:15 pm
My boiler can be operated by:
1- opentherm thermostat
2- on/off thermostat
These have separate, different connectors on the boiler. I have to figure out whether or not I can operate the on/off thermostat and simultaneously query the opentherm interface.
Initially, I controlled the boiler by opentherm, but the boiler algorithm forced water temperature to too low levels (modern boilers try to minimize water temp). The OTGW has been an indispensable instrument to really measure what's going on.
So, now I have an on/off setup. Can I retrieve the boiler parameters by OTGW ? As I read from documentation I should leave open the thermostat connector of OTGW (I have no interest of controlling the boiler by OTGW).
As there is no thermostat connected, I presume, the OTGW will send the message listed under Gateway Operation.
Is this a message from OTGW to boiler and subsequently a message from bolier to OTGW ?
Will OTGW send this messages periodically ?
If so, what is the time interval ?
Or, alternatively, can I send the serial command PS=1 periodically ?
Any help appreciated
1- opentherm thermostat
2- on/off thermostat
These have separate, different connectors on the boiler. I have to figure out whether or not I can operate the on/off thermostat and simultaneously query the opentherm interface.
Initially, I controlled the boiler by opentherm, but the boiler algorithm forced water temperature to too low levels (modern boilers try to minimize water temp). The OTGW has been an indispensable instrument to really measure what's going on.
So, now I have an on/off setup. Can I retrieve the boiler parameters by OTGW ? As I read from documentation I should leave open the thermostat connector of OTGW (I have no interest of controlling the boiler by OTGW).
As there is no thermostat connected, I presume, the OTGW will send the message listed under Gateway Operation.
Is this a message from OTGW to boiler and subsequently a message from bolier to OTGW ?
Will OTGW send this messages periodically ?
If so, what is the time interval ?
Or, alternatively, can I send the serial command PS=1 periodically ?
Any help appreciated