Human readable ASF, RBP-flags, TSP, FHB-values, OEM fault/service codes and the like.

[STemplar]

The Remeha boilers (and other brands too) can send fault and parameter codes to the thermostat. It is done by using the Transparent Slave Parameters. Only Thermostats of the same brand know which fault or parameter codes corresponds with a certain OEM fault code / (TSP) value.

A nice feature woult be being able to make a JSON-file with a crosstab which pairs the OpenTherm values and the corresponding description from the manuals.

Class 1: Control and Status Information register 5 {flag8 u8} "Application-specific flags" (correponds with the Remeha E:xx fault codes.) register 72 {flag8 u8} "Fault flags/code V/H" register 73 {u16} "OEM diagnostic code V/H" register 102 {flag8 u8} "Solar storage fault flags" register 115 {u16} "OEM diagnostic code"

Class 2: Configuration Information register 3 {flag8 u8} "Slave configuration" register 74 {flag8 u8} "Configuration/memberid V/H" register 103 {flag8 u8} "Solar storage config/memberid"

Class 6: Transparent Slave Parameters register 11 {u8 u8} "TSP setting" (correponds with the Remeha Pxx parameter codes.) register 89 {u8 u8} "TSP setting V/H" register 106 {u8 u8} "TSP setting solar storage"

Class 7: Fault History Data register 13 {u8 u8} "Fault buffer entry" register 91 {u8 u8} "Fault buffer entry V/H" register 108 {u8 u8} "Fault buffer entry solar storage"

[rvdbreemen]

@STemplar I use a lookup table that does that. I actually used the spec 2.2 for the description of the ID. Is that what you mean? Because I am planning to include all the ID's you provided in the other ticket.

[STemplar]

@STemplar I use a lookup table that does that. I actually used the spec 2.2 for the description of the ID. Is that what you mean? Because I am planning to include all the ID's you provided in the other ticket.

No, I mean these codes/descriptions which are vendor specific: Parameters Dutch English

Storingscodes Dutch Errorcodes English

Blokkeringscodes Dutch

Blocking code English

Status / Substatus Dutch English

You can find them in the Remeha installation manuals ands appear to be generic for Remeha boilers. Remeha Thermostats link those descriptions to the corresponding Data-ID replies. By doing that they can display this information on their screen. I would be nice if your firmware could do the same.

Other Remeha info: Data-ID 11: correponds with the Remeha Pxx parameter codes using {u8 u8} data-type. (High Byte= Parameternr. / Low Byte= Value)

Checking this Equipment matrix I suspect Itho Daalderop, Intergas and Atag to have their own implementations.

[rvdbreemen]

Aha, so I have not looked at the implementation of the The Slave Parameters. I was focused on the basic message first. But it's definitly something I can consider implementing, as I own a Remeha Calenta myself ;-) I will reopen the issue, and put it back on the backlog.

[STemplar]

Aha, so I have not looked at the implementation of the The Slave Parameters. I was focused on the basic message first. But it's definitly something I can consider implementing, as I own a Remeha Calenta myself ;-) I will reopen the issue, and put it back on the backlog.

Then you probably have an iSense thermostat too. Check every parameter and option while checking the send and returned Data-ID's. Then you can compile a crosstab.

[STemplar]

Hi Robert, here my second attempt, added some Calenta Parameters.:

boiler Remeha Tzerra M 28c Plus.lut.txt

[STemplar]

Master MemberID Code (Data-ID 2 LB): Remeha <11> Master product type and version of two Remeha thermostats (Data-ID 126 u8 u8): qSense v1.2 <35 12> iSense v27 <32 27> Slave product type and version of two Remeha boilers (Data-ID 127 u8 u8): Tzerra M 28c Plus <13 16> Calenta 40c <10 19>

[rvdbreemen]

So we need a way to collect information ;-)

[STemplar]

Indeed, perhaps the easy way out is display the bitfields and ask for people to post the accompanying thermostat model info in the Discord channel? Or do you think of a fancier way?