Found new Data-ID's at this page:
https://www.opentherm.eu/request-details/?post_ids=1833
Code: Select all
ID 36: {f8.8} "Electrical current through burner flame" (µA)
ID 37: {f8.8} "Room temperature for 2nd CH circuit"
ID 38: {u8 u8} "Relative Humidity"
For Data-ID's 37 and 38 I assumed their data types, for Data ID 36 I determined it by matching qSense value with the correct data-type.
I also analysed OT Remeha qSense <-> Remeha Tzerra communication.
Code: Select all
ID 131: {u8 u8} "Remeha dF-/dU-codes"
ID 132: {u8 u8} "Remeha Servicemessage"
ID 133: {u8 u8} "Remeha detection connected SCU’s"
"Remeha dF-/dU-codes": Should match the dF-/dU-codes written on boiler nameplate. Read-Data Request (0 0) returns the data. Also accepts Write-Data Requests (dF dU), this returns the boiler to its factory defaults.
"Remeha Servicemessage" Read-Data Request (0 0). Write-Data Request (1 255) clears the boiler service message.
boiler returns (0 1) = next service type is "A"
boiler returns (0 2) = next service type is "B"
boiler returns (0 3) = next service type is "C"
"Remeha detection connected SCU’s": Write-Data Request (255 1) enables detection of connected SCU prints, correct response is (Write-Ack 255 1).
Other Remeha info:
Data-ID 5: correponds with the Remeha E:xx fault codes.
Data-ID 11: correponds with the Remeha Pxx parameter codes.
Data-ID 35: reported value is fan speed in rpm/60 .
Data-ID 115: correponds with the Remeha Status and Sub-status numbers using {u8 u8} data-type.