EMS-ESP can't control my Bosch Condens 3000W

[davbarhu]

Dear All,

connected it to my Bosch Condens 3000W and my home network and evething seems to be okay. I can read the parameters, forward them via mqtt and so on.

Even so I can not control my boiler from the Gateway. I've tried it via the GUI of the GW and from Console too, but without any success. I do not have any other controller or thermostat on the BUS, only the boiler and your gateway.
I've dived into the forums and wiki, but I feels that I got stuck.

ems-esp-bosch-condens-3000:# show
EMS-ESP version 3.5.0b6

Boiler: Condens 2500/Logamax/Logomatic/Cerapur Top/Greenstar/Generic HT3 (DeviceID:0x08, ProductID:95, Version:23.12) (57)
heating active: off
tapwater active: off
selected flow temperature: °C
burner selected max power: %
heating pump modulation: %
current flow temperature: °C
gas: off
gas stage 2: off
heating pump: on
fan: off
ignition: off
oil preheating: off
heating activated: on
heating temperature: °C
boiler pump max power: %
boiler pump min power: %
pump delay:
burner min period:
burner min power: %
burner max power: %
hysteresis on temperature: °C
hysteresis off temperature: °C
burner current power: %
burner starts:
total burner operating time: 519 days 4 hours 7 minutes
burner stage 2 operating time: 0 days 0 hours 0 minutes
total heat operating time: 492 days 2 hours 7 minutes
total UBA operating time: 1820 days 22 hours 10 minutes
service code number:
maintenance message: H00
maintenance scheduled: off
time to next maintenance: hours
dhw set temperature: °C
dhw selected temperature: °C
dhw type: buffer
dhw comfort: hot
dhw flow temperature offset: °C
dhw circulation pump available: off
dhw charging type: 3-way valve
dhw hysteresis on temperature: °C
dhw hysteresis off temperature: °C
dhw disinfection temperature: °C
dhw circulation pump mode: 2x3min
dhw circulation active: off
dhw current intern temperature: °C
dhw current extern temperature: °C
dhw current tap water flow: l/min
dhw activated: on
dhw one time charging: off
dhw disinfecting: off
dhw charging: off
dhw recharging: off
dhw temperature ok: on
dhw active: off
dhw 3-way valve active: off
dhw starts:
dhw active time: 27 days 2 hours 0 minutes

Controller: HT3 (DeviceID:0x09, ProductID:95, Version:23.12) (0)

I can't see the number values in CLI as above, but I can see it via web GUI.

ems-esp-bosch-condens-3000:# show ems
EMS Bus is connected.

EMS Bus info:
Tx mode: 2
Bus protocol: HT3
#recognized EMS devices: 2
#telegrams received: 711
#read requests sent: 52
#write requests sent: 3
#incomplete telegrams: 0
#read fails (after 3 retries): 0
#write fails (after 3 retries): 0
Rx line quality: 100%
Tx line quality: 100%

Rx Queue is empty

Tx Queue is empty

ems-esp-bosch-condens-3000:# show devices
These EMS devices are currently active:

Boiler: Condens 2500/Logamax/Logomatic/Cerapur Top/Greenstar/Generic HT3 (DeviceID:0x08, ProductID:95, Version:23.12)
Received telegram type IDs: 0x10 0x11 0x15 0x1C 0x18 0x19 0x34
Fetched telegram type IDs: 0x14 0x16 0x33
Pending telegram type IDs: 0xBF 0xC2 0x1A 0x35 0x26 0x2A
Ignored telegram type IDs:

Controller: HT3 (DeviceID:0x09, ProductID:95, Version:23.12)

ems-esp-bosch-condens-3000:#
ems-esp-bosch-condens-3000:# show commands
Available commands (*=do not need authorization):
system:
commands lists all commands *
fetch refresh all EMS values
info show system status *
publish publish all to MQTT *
restart restart EMS-ESP
send send a telegram
watch watch incoming telegrams *

boiler:
boilhystoff hysteresis off temperature
boilhyston hysteresis on temperature
burnmaxpower burner max power
burnminperiod burner min period
burnminpower burner min power
commands lists all commands *
emergencyops emergency operation
emergencytemp emergency temperature
entities lists all entities *
heatingactivated heating activated
heatingtemp heating temperature
info lists all values *
maintenance maintenance scheduled
maintenancedate next maintenance date
maintenancetime time to next maintenance
pumpdelay pump delay
pumpmodmax boiler pump max power
pumpmodmin boiler pump min power
reset Reset
selburnpow burner selected max power
selflowtemp selected flow temperature
wwactivated dhw activated
wwchargeoptimization dhw charge optimization
wwcirc dhw circulation active
wwcircmode dhw circulation pump mode
wwcircpump dhw circulation pump available
wwcomfort dhw comfort
wwcomfort1 dhw comfort mode
wwdisinfecting dhw disinfecting
wwdisinfectiontemp dhw disinfection temperature
wwflowtempoffset dhw flow temperature offset
wwhystoff dhw hysteresis off temperature
wwhyston dhw hysteresis on temperature
wwmaxpower dhw max power
wwmaxtemp dhw maximum temperature
wwonetime dhw one time charging
wwseltemp dhw selected temperature
wwseltemplow dhw selected lower temperature
wwseltempsingle dhw single charge temperature
wwtapactivated dhw turn on/off

ems-esp-bosch-condens-3000:#

ems-esp-bosch-condens-3000:# log trace
Log level: trace
000+00:32:05.461 T 46: [emsesp] Boiler(0x08) -B-> All(0x00), UBAMonitorFast(0x18), data: 23 01 54 64 00 01 12 20 C0 80 00 80 00 80 00 FF FF FF 00 00 00 00 00 00 00
000+00:32:05.670 T 47: [emsesp] Boiler(0x08) -B-> All(0x00), UBAMonitorWW(0x34), data: 0F 02 8E 02 8E A0 00 00 03 00 00 98 58 00 0F 24 00
000+00:32:05.811 D 48: [mqtt] Publishing topic ems-esp/heartbeat (#436, retain=0, retry=1, size=290, pid=1)
000+00:32:10.132 D 49: [mqtt] Publishing topic ems-esp/boiler_data_ww (#437, retain=0, retry=1, size=461, pid=1)
000+00:32:10.236 D 50: [mqtt] Publishing topic ems-esp/boiler_data (#438, retain=0, retry=1, size=602, pid=1)
000+00:32:15.485 T 51: [emsesp] Boiler(0x08) -B-> All(0x00), UBADevices(0x07), data: 0B 00 00 00 00 00 00 00 00 00 00 00 00 00 00
000+00:32:15.710 T 52: [emsesp] Boiler(0x08) -B-> All(0x00), UBAMonitorFast(0x18), data: 23 01 52 64 00 01 12 20 C0 80 00 80 00 80 00 FF FF FF 00 00 00 00 00 00 00
000+00:32:15.920 T 53: [emsesp] Boiler(0x08) -B-> All(0x00), UBAMonitorWW(0x34), data: 0F 02 8E 02 8E A0 00 00 03 00 00 98 58 00 0F 24 00
000+00:32:16.150 T 54: [emsesp] Boiler(0x08) -B-> All(0x00), UBAMonitorSlow(0x19), data: 80 00 80 00 80 00 FF FF 00 59 04 03 D8 0B 68 57 00 00 00 0A CF FF 03 F4 B4 80 00
ems-esp-bosch-condens-3000:# call boiler heatingtemp 45
000+00:32:19.218 D 55: [command] Calling command 'boiler/heatingtemp' (heating temperature) with value 45
000+00:32:19.271 D 56: [telegram] Sending write Tx [#124], telegram: 8B 08 16 01 2D
000+00:32:19.271 T 57: [emsesp] Me(0x0B) -W-> Boiler(0x08), UBAParameters(0x16), data: 2D (offset 1)
000+00:32:19.271 D 58: [emsesp] No telegram type handler found for ID 0x16 (src 0x0B)
000+00:32:19.302 D 59: [emsesp] Last Tx write successful
000+00:32:19.302 D 60: [telegram] Sending post validate read, type ID 0x16 to dest 0x08
000+00:32:19.383 T 61: [emsesp] Boiler(0x08) -B-> All(0x00), UBAParameters(0x16), data: FF 23 64 00 00 FB 03 01 03 64 0A 02
000+00:32:19.614 D 62: [telegram] Sending read Tx [#125], telegram: 8B 88 16 00 1B
000+00:32:19.614 T 63: [emsesp] Me(0x0B) -R-> Boiler(0x08), UBAParameters(0x16), length: 0x1B
000+00:32:19.664 D 64: [emsesp] Last Tx read successful
000+00:32:19.664 T 65: [emsesp] Boiler(0x08) -W-> Me(0x0B), UBAParameters(0x16), data: FF 23 64 00 00 FB 03 01 03 64 0A 02

The heating temp changing was just an example. I can not change any parameters.

Thank you in advance,
Best regards,
David

[MichaelDvP]

The missing numbers is a bug in b6, the serialized json numbers have to be read as<std::string> I'll add a commit to my PR.

The tx write look ok, the data is sent and the boiler acknowledged, but value is not set. Depending on boiler type and controller some values can not be changed or set back after a short while. But there is no know list of these types, you have to test which values can be changed.

[davbarhu]

Thank you MichaelDvP.
Regarding to the tx write, I can accept it, but I do not have any parameter what can be changed via the EMS-ESP. That's the strangest thing in my case. If I could turn on/off the heating somehow, I'd be happy.

[MichaelDvP]

Yes, it's difficult. I have this controller:

and changing a temperature only works if the rotarys are set AUT. Switching on/off is not possible, also set by the knops.
I've read that on other controllers it is possible to send temperaturs lower than the controller setting, but not higher. Some completly electronic setable controllers allow to change all values.
A new idea from a recent discussion and test: device-ID 0x12 is normally a alarm module that allows setting the flowtemp by a analog input. Try to set ems-esp to id 0x12 and then try changing selflowtemp and selburnpow. Maybe this works.

[davbarhu]

MichaelDvP you are a genius. I have the same issue what you have mentioned. I can lower the values, but I can not set higher values than the controller settings. We solved it! Thanks a lot!

[LordTompa]

Hi, I think I have exactly the same problem. Could someone explain to me how to set the device ID to device ID 0x12?
I'm new with the EMS-ESP and I'm at a loss.
Thanks for your help

[proddy]

we removed the Alarm Module 0x12, can't remember why though.

[MichaelDvP]

we removed the Alarm Module 0x12, can't remember why though.

Because the thermostat is flooding the bus with version requests to alarm module. This stops if we reply wth a valid version, but we don't know what is reconfigured because of this information.

The working solution for this issue was to set the flowtemp high on the control and only send lower values, this works from any device, no need to emulate a alarm module. The alarm module solution is a guess, not validated that it works. Not tested to side effects.