Hello,
I hope this is not a stupid beginner problem
I've bought the OTGW Kit from Nodo Shop, it poweres on and also the Ethernet Module works fine.
The B-LED flashs periodically and the Monitoring Software can connect to the Gateway.
After connecting the Boiler i can see some communication in the Log but no useful information, i think this should be ok without the thermostat?
And now the problem starts, after connecting the thermostat to the OTGW the B-Led stops flashing. The Thermostat also doesnt power on and we cant see any communication in the log.
We have an Atag E22S boiler and an ATAG BrainZ RSC Thermostat.
Also i have 4.89V between the USB Shield and F1 (5V without anything connected)
Thank you very much!
no connection with thermostat
Moderator: hvxl
Re: no connection with thermostat
Something you may have in common with the boiler: Providing no useful information
Without showing the log, it is impossible to tell whether the boiler actually provided no (useful) information, or you have a different concept of what is useful information. Without a thermostat, there should already be data coming from the boiler regarding water temperature, heating status, etc.
When a thermostat is connected, you should get a message saying "Thermostat connected". I suppose you did, otherwise the B-LED wouldn't stop flashing. At that point the thermostat should start sending messages, at least once every second. If you see nothing in the log, you may have to adjust the reference voltage. On may thermostats, the display doesn't come on until it has received a first response.
If you recently bought the OTGW kit from the Nodo shop, you should have a revision 2.5 or later. Those run on 3.3V, which makes the supply voltage much less critical.
Without showing the log, it is impossible to tell whether the boiler actually provided no (useful) information, or you have a different concept of what is useful information. Without a thermostat, there should already be data coming from the boiler regarding water temperature, heating status, etc.
When a thermostat is connected, you should get a message saying "Thermostat connected". I suppose you did, otherwise the B-LED wouldn't stop flashing. At that point the thermostat should start sending messages, at least once every second. If you see nothing in the log, you may have to adjust the reference voltage. On may thermostats, the display doesn't come on until it has received a first response.
If you recently bought the OTGW kit from the Nodo shop, you should have a revision 2.5 or later. Those run on 3.3V, which makes the supply voltage much less critical.
Schelte
Re: no connection with thermostat
Ok i'm very sorry, maybe I'll do better now than the boiler
I'm one step further now.
The thermostat turns on and off continuous (and shows nothing on the screen) and after playing with the voltage the log shows error 1 and 3 alternately. (see attachments)
btw. there is unhappily no information like water temperature, heating status, etc from the boiler.
thank you very much!
greeting
Koarl3
I'm one step further now.
The thermostat turns on and off continuous (and shows nothing on the screen) and after playing with the voltage the log shows error 1 and 3 alternately. (see attachments)
btw. there is unhappily no information like water temperature, heating status, etc from the boiler.
thank you very much!
greeting
Koarl3
- Attachments
-
- IMG_1528.jpg (36.23 KiB) Viewed 1579 times
-
- 2023-09-04 19_35_27-Opentherm Monitor.png (52.6 KiB) Viewed 1580 times
-
- 2023-09-04 19_35_06-Opentherm Monitor.png (49.04 KiB) Viewed 1580 times
Last edited by Koarl3 on Mon Sep 04, 2023 9:21 pm, edited 1 time in total.
Re: no connection with thermostat
For now the screen shots will do. But for future reference: When I ask for a log, I mean a proper log file that you create by going to Options -> Logging. Configure the Logfile section and enable it. Preferably leave the "Include details of bit fields" option off. It only makes the log larger, but doesn't provide any additional information. If it's a small log, you can copy&paste the text as a code block into a message you post here. In case of a larger log, compress the file (gzip, zip) and attach it to the message.
You didn't provide context with your screen shots. Is the second one supposed to be taken without a thermostat connected? In that case it is strange that the OTGW frequently reports "Thermostat connected". Also strange are the "Error 01" reports. By default error 01 is disabled. Did you enable it for a reason? If not, go to Options -> Settings and activate the "Ignore multiple mid-bit transitions" option. Hopefully that will help to receive the responses from the boiler.
If problems persist after changing the setting mentioned above, my next suggestion is to load the diagnostic firmware. Connect the boiler and thermostat, and run test #5. Once a good reference voltage setting has been determined, you can run tests #2 and #3.
If you fail to find a good reference voltage setting, disconnect the thermostat and run tests #5 and #3 again. The results of those tests will help to determine the next steps for solving the issue.
You didn't provide context with your screen shots. Is the second one supposed to be taken without a thermostat connected? In that case it is strange that the OTGW frequently reports "Thermostat connected". Also strange are the "Error 01" reports. By default error 01 is disabled. Did you enable it for a reason? If not, go to Options -> Settings and activate the "Ignore multiple mid-bit transitions" option. Hopefully that will help to receive the responses from the boiler.
If problems persist after changing the setting mentioned above, my next suggestion is to load the diagnostic firmware. Connect the boiler and thermostat, and run test #5. Once a good reference voltage setting has been determined, you can run tests #2 and #3.
If you fail to find a good reference voltage setting, disconnect the thermostat and run tests #5 and #3 again. The results of those tests will help to determine the next steps for solving the issue.
Schelte
Re: no connection with thermostat
OK, without the thermostat everything works fine after an cold start of the boiler.
The monitoring software gets data like outside temperature etc...
Playing with the reference voltage does not make a big difference.
At the moment of connecting the thermostat the communication is gone. Also after an cold start of the boiler and with every level of reference voltage.
Here the Log of that moment of connecting and disconnecting again after some time:
With the diagnostic firmware and the thermostat connected i can absolutely get no result of test #2 and #3, with every voltage level from 0-9.
The result of Test #3 witout the thermostat connected i'll post later.
Edit: i forgot to mention that in monitoring mode the thermostat does power on, but keeps in boot screen.
thank you very much
Koarl3
The monitoring software gets data like outside temperature etc...
Playing with the reference voltage does not make a big difference.
At the moment of connecting the thermostat the communication is gone. Also after an cold start of the boiler and with every level of reference voltage.
Here the Log of that moment of connecting and disconnecting again after some time:
Code: Select all
11:46:33.061224 BD0010000 Write-Ack Control setpoint (MsgID=1): 0.00
11:46:33.673384 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:46:33.763567 BC0000000 Read-Ack Status (MsgID=0): 00000000 00000000
11:46:34.619544 R00110000 Read-Data Relative modulation level (MsgID=17): 0.00
11:46:34.663683 BC0110000 Read-Ack Relative modulation level (MsgID=17): 0.00
11:46:35.490899 R001B0000 Read-Data Outside temperature (MsgID=27): 0.00
11:46:35.859751 B401B1600 Read-Ack Outside temperature (MsgID=27): 22.00
11:46:36.490372 R801C0000 Read-Data Return water temperature (MsgID=28): 0.00
11:46:36.763752 B401C1B00 Read-Ack Return water temperature (MsgID=28): 27.00
11:46:37.495903 R900E6400 Write-Data Maximum relative modulation level (MsgID=14): 100.00
11:46:37.659626 B500E6400 Write-Ack Maximum relative modulation level (MsgID=14): 100.00
11:46:38.504419 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:46:38.859434 BC0000000 Read-Ack Status (MsgID=0): 00000000 00000000
11:46:39.492607 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:46:39.763524 BC0000000 Read-Ack Status (MsgID=0): 00000000 00000000
11:46:40.502070 R80190000 Read-Data Boiler water temperature (MsgID=25): 0.00
11:46:40.661409 B40191B00 Read-Ack Boiler water temperature (MsgID=25): 27.00
11:46:41.491598 R10010000 Write-Data Control setpoint (MsgID=1): 0.00
11:46:41.860200 BD0010000 Write-Ack Control setpoint (MsgID=1): 0.00
11:46:42.496763 R80380000 Read-Data DHW setpoint (MsgID=56): 0.00
11:46:42.759177 B70380000 Unk-DataId DHW setpoint (MsgID=56): 0.00
11:46:43.490577 R00390000 Read-Data Max CH water setpoint (MsgID=57): 0.00
11:46:43.658618 BF0390000 Unk-DataId Max CH water setpoint (MsgID=57): 0.00
11:46:44.373751 Thermostat connected
11:46:48.402362 Thermostat disconnected
11:46:48.412600 R80000100 Read-Data Status (MsgID=0): 00000001 00000000
11:46:48.451879 Thermostat connected
11:46:48.756977 B40000100 Read-Ack Status (MsgID=0): 00000001 00000000
11:47:23.466990 Error 03
11:47:23.510316 Thermostat disconnected
11:47:23.516729 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:47:23.549159 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:47:23.857399 BC000000C Read-Ack Status (MsgID=0): 00000000 00001100
11:47:24.532791 R00120000 Read-Data CH water pressure (MsgID=18): 0.00
11:47:24.753861 B40120199 Read-Ack CH water pressure (MsgID=18): 1.60
11:47:25.530212 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:47:25.648390 B40000008 Read-Ack Status (MsgID=0): 00000000 00001000
11:47:26.531426 R80190000 Read-Data Boiler water temperature (MsgID=25): 0.00
11:47:26.851900 BC0191C00 Read-Ack Boiler water temperature (MsgID=25): 28.00
11:47:27.530757 R10010000 Write-Data Control setpoint (MsgID=1): 0.00
11:47:27.749668 BD0010000 Write-Ack Control setpoint (MsgID=1): 0.00
11:47:28.545810 R00000000 Read-Data Status (MsgID=0): 00000000 00000000
11:47:28.647759 B40000008 Read-Ack Status (MsgID=0): 00000000 00001000
11:47:29.544004 R00110000 Read-Data Relative modulation level (MsgID=17): 0.00
11:47:29.851528 B40113B00 Read-Ack Relative modulation level (MsgID=17): 59.00
11:47:30.550088 R001B0000 Read-Data Outside temperature (MsgID=27): 0.00
11:47:30.746815 B401B1600 Read-Ack Outside temperature (MsgID=27): 22.00
11:47:31.545563 R801C0000 Read-Data Return water temperature (MsgID=28): 0.00
11:47:31.647242 B401C1B00 Read-Ack Return water temperature (MsgID=28): 27.00
The result of Test #3 witout the thermostat connected i'll post later.
Edit: i forgot to mention that in monitoring mode the thermostat does power on, but keeps in boot screen.
thank you very much
Koarl3
- Attachments
-
- otlog-20230909.zip
- (27.67 KiB) Downloaded 64 times
Last edited by Koarl3 on Sat Sep 09, 2023 12:23 pm, edited 2 times in total.
Re: no connection with thermostat
ok here is the result of Test #3 without the thermostat connected and default voltage level (3)
Result of #5
Result of #5 with thermostat connected
Thank you very much!
Code: Select all
Enter test number: 3
512,1013,1022,1025,514,503,513,501,513,502,513,502,513,502,515,502,514,502,513,501,1020,502,514,1009,513,501,1020,1012,512,502,513,502,1020,502,513,1009,1021,501,513,1011,513,502,513,501,513,502,513,501,513,502,513,502,512,502,1020.
40191B00 Read-Ack Boiler water temperature: 27.00
513,1012,1020,1009,513,502,513,501,513,502,512,502,513,502,515,502,513,502,512,502,1020,502,513,1009,512,502,1020,1012,512,502,513,502,1020,501,514,1009,1020,501,513,1011,513,502,513,501,513,502,513,502,512,502,513,502,512,502,1020.
40191B00 Read-Ack Boiler water temperature: 27.00
513,504,514,503,513,1009,513,502,513,502,512,502,513,502,513,502,515,502,513,502,512,502,1021,501,513,1009,513,502,1020,1011,513,502,512,502,1021,501,513,1009,1021,1009,515,502,512,502,513,502,512,502,513,502,513,502,513,502,513,502,1019.
C0191A00 Read-Ack Boiler water temperature: 26.00
512,505,513,502,513,1017,513,502,513,502,512,502,513,502,513,501,516,502,514,502,513,502,1020,502,513,1009,513,502,1020,1011,513,502,513,501,1021,501,513,1009,1020,1011,515,502,513,502,512,502,513,502,513,502,513,502,513,502,512,502,1020.
C0191A00 Read-Ack Boiler water temperature: 26.00
512,505,515,502,513,1009,514,502,513,502,513,502,513,502,513,503,515,502,514,502,513,502,1020,502,513,1009,513,502,1022,1012,513,502,513,502,1021,501,513,1010,1020,1009,515,503,512,502,513,502,513,502,513,502,513,502,513,502,513,502,1020.
C0191A00 Read-Ack Boiler water temperature: 26.00
Code: Select all
Enter test number: 5
Power supply: 3.313
Reference: 1.452
Thermostat: 2.918
Boiler: 0.000, 2.555
Reference voltage setting (0..9) [3]: 3
Code: Select all
Enter test number: 5
Power supply: 3.313
Reference: 1.200
Thermostat: 0.592
Boiler: 0.000
Reference voltage setting (0..9) [5]: 5
Last edited by Koarl3 on Tue Sep 12, 2023 7:44 pm, edited 1 time in total.
Re: no connection with thermostat
The boiler interface already started working. So test #3 isn't very interesting anymore.
Test #5 (without thermostat) shows 2.9V on pin AN0, which roughly translates to 23V on the thermostat interface. That's correct. With the thermostat connected, the voltage drops to 0.6V, or 4.8V externally. That's a proper low level Opentherm signal. The issue is that the signal shouldn't stay low all the time. The thermostat is supposed to start sending messages. There's no evidence it does that.
Does your thermostat work when connected directly to the boiler? Someone has uploaded a log file for an Atag BrainZ RSC V3.0 to the equipment matrix. So, in principle, the thermostat can work with the OTGW. Please confirm that it definitely is a BrainZ thermostat, not a BrainQ.
Test #5 (without thermostat) shows 2.9V on pin AN0, which roughly translates to 23V on the thermostat interface. That's correct. With the thermostat connected, the voltage drops to 0.6V, or 4.8V externally. That's a proper low level Opentherm signal. The issue is that the signal shouldn't stay low all the time. The thermostat is supposed to start sending messages. There's no evidence it does that.
Does your thermostat work when connected directly to the boiler? Someone has uploaded a log file for an Atag BrainZ RSC V3.0 to the equipment matrix. So, in principle, the thermostat can work with the OTGW. Please confirm that it definitely is a BrainZ thermostat, not a BrainQ.
Schelte
Re: no connection with thermostat
yes of course, this thermostat is working without any problems when it is directly connected.
After some research in the internet with the product number (see attachment) you are probably right. Its a BrainQ.
Is this a show stopper?
Thank you very much!
After some research in the internet with the product number (see attachment) you are probably right. Its a BrainQ.
Is this a show stopper?
Thank you very much!
- Attachments
-
- 3024-4032-max.jpg (168.08 KiB) Viewed 1186 times
Re: no connection with thermostat
If I understand the manual correctly, the BrainZ uses the OpenTherm protocol, while the BrainQ uses a proprietary (modbus) protocol Atag calls T2B. The OTGW only works with OpenTherm. So, unfortunately, a BrainQ thermostat cannot be used with the OTGW. Unless Atag has a converter.
Schelte