Control setpoint change after OTG reset ???

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Control setpoint change after OTG reset ???

Postby rpav » Sat Jan 30, 2016 7:31 pm

I saw strange behaviour, that I can't explain. Can anybody help me?

Room setpoint was set to 22.0 C.
Control setpoint (calculated by QAA73) was 41.92 C.

After OTG reset and without any other modification, the control setpoint was 46.30 C

Here is the log:

Code: Select all
17:49:13.610686  T80001300  Read-Data   Status: 00010011 00000000
17:49:13.879016  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:14.650487  T90101600  Write-Data  Room setpoint: 22.00
17:49:14.932857  B50101600  Write-Ack   Room setpoint: 22.00
17:49:15.601870  T10171600  Write-Data  Room Setpoint CH2: 22.00
17:49:15.921637  BD0171600  Write-Ack   Room Setpoint CH2: 22.00
17:49:16.641923  T101814A4  Write-Data  Room temperature: 20.64
17:49:16.909458  BD01814A4  Write-Ack   Room temperature: 20.64
17:49:17.628326  T80800000  Read-Data   Message ID 128: 0
17:49:17.898363  BE0800000  Data-Inv    Message ID 128: 0
17:49:18.617321  T10821953  Write-Data  Message ID 130: 6483
17:49:18.885905  BD0821953  Write-Ack   Message ID 130: 6483
17:49:19.605968  T807F0000  Read-Data   Slave product version: 0 0
17:49:19.875735  B407F6401  Read-Ack    Slave product version: 100 1
17:49:20.595818  T80001300  Read-Data   Status: 00010011 00000000
17:49:20.864489  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:21.584270  T100129EC  Write-Data  Control setpoint: 41.92
17:49:21.852986  BD00129EC  Write-Ack   Control setpoint: 41.92
17:49:22.573047  T10081FF8  Write-Data  Control setpoint 2: 31.97
17:49:22.840622  BD0081FF8  Write-Ack   Control setpoint 2: 31.97
17:49:23.610986  T90383700  Write-Data  DHW setpoint: 55.00
17:49:23.963271  B50383700  Write-Ack   DHW setpoint: 55.00
17:49:24.582425  T80200000  Read-Data   DHW2 temperature: 0.00
17:49:24.951301  BE0200000  Data-Inv    DHW2 temperature: 0.00
17:49:25.570940  T801A0000  Read-Data   DHW temperature: 0.00
17:49:25.939808  B401A3154  Read-Ack    DHW temperature: 49.33
17:49:26.558570  T80001300  Read-Data   Status: 00010011 00000000
17:49:26.928359  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:27.547228  T001B0000  Read-Data   Outside temperature: 0.00
17:49:27.915819  B401B03F4  Read-Ack    Outside temperature: 3.95
17:49:28.586815  T80190000  Read-Data   Boiler water temperature: 0.00
17:49:28.905586  BC0192CAC  Read-Ack    Boiler water temperature: 44.67
17:49:29.575537  T801C0000  Read-Data   Return water temperature: 0.00
17:49:29.894035  B401C2068  Read-Ack    Return water temperature: 32.41
17:49:30.564010  T801F0000  Read-Data   Flow temperature CH2: 0.00
17:49:30.882876  B401F1ED8  Read-Ack    Flow temperature CH2: 30.84
17:49:31.552979  T00110000  Read-Data   Relative modulation level: 0.00
17:49:31.870921  BC0110000  Read-Ack    Relative modulation level: 0.00
17:49:32.540942  T80001300  Read-Data   Status: 00010011 00000000
17:49:32.859272  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:33.533721  T80130000  Read-Data   DHW flow rate: 0.00
17:49:33.846949  B70130000  Unk-DataId  DHW flow rate: 0.00
17:49:34.519199  T001D0000  Read-Data   Solar storage temperature: 0.00
17:49:34.835934  BF01D0000  Unk-DataId  Solar storage temperature: 0.00
17:49:35.558502  T001E0000  Read-Data   Solar collector temperature: 0.00
17:49:35.824829  B601E0000  Data-Inv    Solar collector temperature: 0.00
17:49:36.545990  T00210000  Read-Data   Exhaust temperature: 0.00
17:49:36.814720  B40210025  Read-Ack    Exhaust temperature: 0.14
17:49:37.534814  T9081020E  Write-Data  Message ID 129: 526
17:49:37.801285  B5081020E  Write-Ack   Message ID 129: 526
17:49:38.522199  T80001300  Read-Data   Status: 00010011 00000000
17:49:38.790785  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:39.510834  T90101600  Write-Data  Room setpoint: 22.00
17:49:39.779162  B50101600  Write-Ack   Room setpoint: 22.00
17:49:40.499792  T10171600  Write-Data  Room Setpoint CH2: 22.00
17:49:40.883691  BD0171600  Write-Ack   Room Setpoint CH2: 22.00
17:49:41.488548  T101814A4  Write-Data  Room temperature: 20.64
17:49:41.756154  BD01814A4  Write-Ack   Room temperature: 20.64
17:49:42.527375  T80800000  Read-Data   Message ID 128: 0
17:49:42.808548  BE0800000  Data-Inv    Message ID 128: 0
17:49:43.479269  T10821953  Write-Data  Message ID 130: 6483
17:49:43.797062  BD0821953  Write-Ack   Message ID 130: 6483
17:49:44.518439  T80001300  Read-Data   Status: 00010011 00000000
17:49:44.786667  BC000132A  Read-Ack    Status: 00010011 00101010
17:49:45.505763  T100129EC  Write-Data  Control setpoint: 41.92
17:49:45.775229  BD00129EC  Write-Ack   Control setpoint: 41.92
17:49:46.495117  T10081FF8  Write-Data  Control setpoint 2: 31.97
17:49:46.762895  BD0081FF8  Write-Ack   Control setpoint 2: 31.97
17:49:47.483799  T90383700  Write-Data  DHW setpoint: 55.00
17:49:47.752366  B50383700  Write-Ack   DHW setpoint: 55.00
17:49:48.472057  T80200000  Read-Data   DHW2 temperature: 0.00
17:49:48.740679  BE0200000  Data-Inv    DHW2 temperature: 0.00
17:49:49.462051  T801A0000  Read-Data   DHW temperature: 0.00
17:49:49.729507  B401A3154  Read-Ack    DHW temperature: 49.33
17:49:50.449232  T80001300  Read-Data   Status: 00010011 00000000
17:49:50.716835  BC000132A  Read-Ack    Status: 00010011 00101010

<---reset--->

17:49:57.802246  ü^DOpenTherm Gateway 4.2.5
17:49:58.048873  T00000000  Read-Data   Status: 00000000 00000000
17:49:58.363788  B4000002A  Read-Ack    Status: 00000000 00101010
17:49:58.983706  T00000000  Read-Data   Status: 00000000 00000000
17:49:59.352108  B40000008  Read-Ack    Status: 00000000 00001000
17:50:00.023435  T90020004  Write-Data  Master configuration: 00000000 4
17:50:00.341931  B50020004  Write-Ack   Master configuration: 00000000 4
17:50:01.010902  T00030000  Read-Data   Slave configuration: 00000000 0
17:50:01.328514  BC0032904  Read-Ack    Slave configuration: 00101001 4
17:50:02.002384  T907E0101  Write-Data  Master product version: 1 1
17:50:02.515160  B507E0101  Write-Ack   Master product version: 1 1
17:50:02.996106  T807F0000  Read-Data   Slave product version: 0 0
17:50:03.307315  B407F6401  Read-Ack    Slave product version: 100 1
17:50:03.983881  T90012E4C  Write-Data  Control setpoint: 46.30
17:50:04.304888  B50012E4C  Write-Ack   Control setpoint: 46.30
17:50:04.975910  T00001100  Read-Data   Status: 00010001 00000000
17:50:05.294914  BC0001100  Read-Ack    Status: 00010001 00000000
17:50:05.964669  T00060000  Read-Data   Remote parameter flags: 00000000 00000000
17:50:06.275973  BC0060707  Read-Ack    Remote parameter flags: 00000111 00000111
17:50:06.993686  T90082088  Write-Data  Control setpoint 2: 32.53
17:50:07.265160  B50082088  Write-Ack   Control setpoint 2: 32.53
17:50:07.984658  T900E6400  Write-Data  Maximum relative modulation level: 100.00
17:50:08.249322  B500E6400  Write-Ack   Maximum relative modulation level: 100.00

Thank you for any suggestion....
Regards,
--
roman
rpav
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Posts: 25
Joined: November 2015

Re: Control setpoint change after OTG reset ???

Postby hvxl » Sun Jan 31, 2016 8:43 pm

The control setpoint is determined by the thermostat based on a number of factors. If any of those factors change, the thermostat may adjust the control setpoint. So it is quite usual for the control setpoint to be fairly dynamic. As a result, the chance that the control setpoint is different before and after a gateway reset is reasonably high. That doesn't mean the change is caused, or even influenced, by the reset.
Schelte
hvxl
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Posts: 1180
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Re: Control setpoint change after OTG reset ???

Postby rpav » Mon Feb 01, 2016 8:23 am

I inspect the whole log and found, that OTG was reset few hours before the strange CS calculation without any known reason (power supply was ok), here is the log:

Code: Select all
15:08:48.587987  T80190000  Read-Data   Boiler water temperature: 0.00
15:08:48.857447  BC01922BC  Read-Ack    Boiler water temperature: 34.73
15:08:49.577671  T801C0000  Read-Data   Return water temperature: 0.00
15:08:49.846133  BC01C2028  Read-Ack    Return water temperature: 32.16
15:08:50.566548  T801F0000  Read-Data   Flow temperature CH2: 0.00
15:08:50.833891  B401F1B0C  Read-Ack    Flow temperature CH2: 27.05
15:08:51.555887  T00110000  Read-Data   Relative modulation level: 0.00
15:08:51.822819  BC0110000  Read-Ack    Relative modulation level: 0.00
15:08:53.517227  ^DOpenTherm Gateway 4.2.5
15:08:53.547759  T80130000  Read-Data   DHW flow rate: 0.00
15:08:53.932661  B70130000  Unk-DataId  DHW flow rate: 0.00
15:08:54.552735  T001D0000  Read-Data   Solar storage temperature: 0.00
15:08:54.921244  BF01D0000  Unk-DataId  Solar storage temperature: 0.00
15:08:55.541818  T001E0000  Read-Data   Solar collector temperature: 0.00
15:08:55.910645  B601E0000  Data-Inv    Solar collector temperature: 0.00


I guess that there is command to obtain the reason of the last reset in 4.2.5, unfortunately, I can't find, which command it is.
Your answer is really appreciated, thank you,
roman
rpav
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Posts: 25
Joined: November 2015

Re: Control setpoint change after OTG reset ???

Postby hvxl » Mon Feb 01, 2016 5:17 pm

Schelte
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