Room setpoint changes spontaneous after some time

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Room setpoint changes spontaneous after some time

Postby HarmOtten » Wed Nov 08, 2017 9:41 pm

I have connected my self-build OTGW to a Honeywell Chronotherm Modulation T8851M1000 and I discovered that when I change the temperature temporarily with the Honeywell, this temporary setting is canceled after some time. Can be half an hour or a bit longer.
So in this example the standard temperature is 18°C, and the temporary setting 19.50°C. As you can see in the otmonitor-logging it changes between 17:47:47 and 17:48:47:
Code: Select all
17:47:47.321270  T10101380  Write-Data  Room setpoint: 19.50
17:47:47.483849  B70101380  Unk-DataId  Room setpoint: 19.50
17:47:47.485963  AD0101380  Write-Ack   Room setpoint: 19.50
17:47:48.358824  T1014712F  Write-Data  Day of week and time of day: Wed 17:47
17:47:48.525916  B7014712F  Unk-DataId  Day of week and time of day: Wed 17:47
17:47:48.527284  AD014712F  Write-Ack   Day of week and time of day: Wed 17:47
17:47:49.341248  T80000200  Read-Data   Status: 00000010 00000000
17:47:49.492965  B4000020A  Read-Ack    Status: 00000010 00001010
17:47:50.343804  T80000200  Read-Data   Status: 00000010 00000000
17:47:50.492287  B4000020A  Read-Ack    Status: 00000010 00001010
17:47:51.346871  T80190000  Read-Data   Boiler water temperature: 0.00
17:47:51.491939  B40193880  Read-Ack    Boiler water temperature: 56.50
17:47:52.351582  T10010A00  Write-Data  Control setpoint: 10.00
17:47:52.492870  BD0010A00  Write-Ack   Control setpoint: 10.00
17:47:53.352405  T00110000  Read-Data   Relative modulation level: 0.00
17:47:53.498789  BC0110000  Read-Ack    Relative modulation level: 0.00
17:47:54.354053  T801C0000  Read-Data   Return water temperature: 0.00
17:47:54.498861  BC01C0200  Read-Ack    Return water temperature: 2.00
17:47:55.316530  T80190000  Read-Data   Boiler water temperature: 0.00
17:47:55.471940  B401939FF  Read-Ack    Boiler water temperature: 58.00
17:47:56.327902  T10010A00  Write-Data  Control setpoint: 10.00
17:47:56.472235  BD0010A00  Write-Ack   Control setpoint: 10.00
17:47:57.333873  T801A0000  Read-Data   DHW temperature: 0.00
17:47:57.472214  B701A0000  Unk-DataId  DHW temperature: 0.00
17:47:58.343385  T001B0000  Read-Data   Outside temperature: 0.00
17:47:58.478811  B601B0000  Data-Inv    Outside temperature: 0.00
17:47:59.335429  T000F0000  Read-Data   Boiler capacity and modulation limits: 0 0
17:47:59.477967  BF00F0000  Unk-DataId  Boiler capacity and modulation limits: 0 0
17:48:00.338848  T80000200  Read-Data   Status: 00000010 00000000
17:48:00.492029  B4000020A  Read-Ack    Status: 00000010 00001010
17:48:01.355045  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:01.497377  B40193AFF  Read-Ack    Boiler water temperature: 59.00
17:48:02.341825  T10010A00  Write-Data  Control setpoint: 10.00
17:48:02.492708  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:03.348758  T00110000  Read-Data   Relative modulation level: 0.00
17:48:03.495689  BC0110000  Read-Ack    Relative modulation level: 0.00
17:48:04.346078  T001B0000  Read-Data   Outside temperature: 0.00
17:48:04.492062  B601B0000  Data-Inv    Outside temperature: 0.00
17:48:05.349281  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:05.491437  BC0193A80  Read-Ack    Boiler water temperature: 58.50
17:48:06.354391  T10010A00  Write-Data  Control setpoint: 10.00
17:48:06.500484  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:07.352611  T00120000  Read-Data   CH water pressure: 0.00
17:48:07.497698  BF0120000  Unk-DataId  CH water pressure: 0.00
17:48:08.315022  T80000200  Read-Data   Status: 00000010 00000000
17:48:08.470292  B4000020A  Read-Ack    Status: 00000010 00001010
17:48:09.317516  T80000200  Read-Data   Status: 00000010 00000000
17:48:09.470879  B4000020A  Read-Ack    Status: 00000010 00001010
17:48:10.319401  T80000200  Read-Data   Status: 00000010 00000000
17:48:10.470884  B40000200  Read-Ack    Status: 00000010 00000000
17:48:11.321123  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:11.470242  B40193AFF  Read-Ack    Boiler water temperature: 59.00
17:48:12.324203  T10010A00  Write-Data  Control setpoint: 10.00
17:48:12.470162  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:13.322533  T00110000  Read-Data   Relative modulation level: 0.00
17:48:13.468359  BC0110000  Read-Ack    Relative modulation level: 0.00
17:48:14.324953  T80000200  Read-Data   Status: 00000010 00000000
17:48:14.468991  B40000200  Read-Ack    Status: 00000010 00000000
17:48:15.325872  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:15.468871  BC0193980  Read-Ack    Boiler water temperature: 57.50
17:48:16.335827  T10010A00  Write-Data  Control setpoint: 10.00
17:48:16.488499  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:17.336501  T001B0000  Read-Data   Outside temperature: 0.00
17:48:17.488162  B601B0000  Data-Inv    Outside temperature: 0.00
17:48:18.339331  T80000200  Read-Data   Status: 00000010 00000000
17:48:18.487505  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:19.341472  T80000200  Read-Data   Status: 00000010 00000000
17:48:19.487427  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:20.343147  T80000200  Read-Data   Status: 00000010 00000000
17:48:20.487438  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:21.343822  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:21.486504  B40193880  Read-Ack    Boiler water temperature: 56.50
17:48:22.345747  T10010A00  Write-Data  Control setpoint: 10.00
17:48:22.493324  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:23.346583  T00110000  Read-Data   Relative modulation level: 0.00
17:48:23.493039  BC0110000  Read-Ack    Relative modulation level: 0.00
17:48:24.348933  T80000200  Read-Data   Status: 00000010 00000000
17:48:24.493305  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:25.351134  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:25.506080  BC01937FF  Read-Ack    Boiler water temperature: 56.00
17:48:26.354117  T10010A00  Write-Data  Control setpoint: 10.00
17:48:26.506503  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:27.353278  T80000200  Read-Data   Status: 00000010 00000000
17:48:27.506444  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:28.356232  T80000200  Read-Data   Status: 00000010 00000000
17:48:28.506493  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:29.315532  T80000200  Read-Data   Status: 00000010 00000000
17:48:29.465435  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:30.322663  T80000200  Read-Data   Status: 00000010 00000000
17:48:30.466423  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:31.329398  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:31.472293  BC0193504  Read-Ack    Boiler water temperature: 53.02
17:48:32.334787  T10010A00  Write-Data  Control setpoint: 10.00
17:48:32.486644  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:33.340690  T80380000  Read-Data   DHW setpoint: 0.00
17:48:33.485457  BC038001A  Read-Ack    DHW setpoint: 0.10
17:48:34.348118  T00390000  Read-Data   Max CH water setpoint: 0.00
17:48:34.495033  B40393C43  Read-Ack    Max CH water setpoint: 60.26
17:48:35.354174  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:35.506267  B40193280  Read-Ack    Boiler water temperature: 50.50
17:48:36.328519  T10010A00  Write-Data  Control setpoint: 10.00
17:48:36.472725  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:37.334240  T900E6400  Write-Data  Maximum relative modulation level: 100.00
17:48:37.486062  BF00E6400  Unk-DataId  Maximum relative modulation level: 100.00
17:48:38.342002  T00090000  Read-Data   Remote override room setpoint: 0.00
17:48:38.497072  BF0090000  Unk-DataId  Remote override room setpoint: 0.00
17:48:38.498426  AC0090000  Read-Ack    Remote override room setpoint: 0.00
17:48:39.348385  T80640000  Read-Data   Remote override function: 00000000
17:48:39.503769  B70640000  Unk-DataId  Remote override function: 00000000
17:48:39.506184  A40640000  Read-Ack    Remote override function: 00000000
17:48:40.355341  T80000200  Read-Data   Status: 00000010 00000000
17:48:40.506177  BC0000202  Read-Ack    Status: 00000010 00000010
17:48:41.320515  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:41.466450  BC0193080  Read-Ack    Boiler water temperature: 48.50
17:48:42.327115  T10010A00  Write-Data  Control setpoint: 10.00
17:48:42.472658  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:43.332672  T00110000  Read-Data   Relative modulation level: 0.00
17:48:43.486303  BC0110000  Read-Ack    Relative modulation level: 0.00
17:48:44.340251  T90181367  Write-Data  Room temperature: 19.40
17:48:44.486017  B50181367  Write-Ack   Room temperature: 19.40
17:48:45.346760  T80190000  Read-Data   Boiler water temperature: 0.00
17:48:45.492690  BC0192E80  Read-Ack    Boiler water temperature: 46.50
17:48:46.354529  T10010A00  Write-Data  Control setpoint: 10.00
17:48:46.506269  BD0010A00  Write-Ack   Control setpoint: 10.00
17:48:47.317442  T10101200  Write-Data  Room setpoint: 18.00
17:48:47.477544  B70101200  Unk-DataId  Room setpoint: 18.00
17:48:47.478856  AD0101200  Write-Ack   Room setpoint: 18.00

I can't seem to find what causes this. Any help is much appreciated.
HarmOtten
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