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Re: OTGW hangs with WDT reset!
Posted: Mon Dec 11, 2017 12:40 pm
by sincze
hvxl wrote:The changes between version 4.2.3 and 4.2.5 are very small. I don't see anything in there that seems like it could have introduced a reason for a WDT reset.
I have to admit. The WDT reset is back even with 4.2.3 firmware.
It started last week with 4.2.5 and now with 4.2.3 as well.
Any solutions?
Only thing I can do is replace the OTGW with a spare one to see if this fixes the problem.
- OTGW
- screenshot_otgw.JPG (113.46 KiB) Viewed 17385 times
Re: OTGW hangs with WDT reset!
Posted: Tue Jan 02, 2018 3:34 pm
by sincze
Since october last year I had some problems with the OTGW.
In addition when monitoring the performance of the central-heating system I did see some strange things regarding the boiler temperature suddenly dropping.
The result was sometimes no hot water after 5 minutes, and in addition WDT Resets with no root cause mentioned in the log.
I automated the reset switch but this is ofcourse no solution.
In the end around Christmas we had a broken pump.
A guy came over to fix it and he also noticed the rootcause problem of the cold water after 5 minutes.
He replaced the pump and several new boiler sensors. After that no more WDT Reset,
Strange or what?
Could it be, and I already attached the log files earlier that OTGW Firmware receives 'corrupt' data from the boiler sensor and crashes with a WDT Reset no cause?
Re: OTGW hangs with WDT reset!
Posted: Sun Feb 18, 2018 10:12 pm
by sincze
Let me answer my own question
.. that would be a NO.
Still experiencing random resets..... and hangs...
As I have automated the reset... it will reboot the OTGW after 5 minutes and it continues to work.
This happens around 7 times a day.
Code: Select all
2018-02-18 20:55:20.349 (GW OpenTherm) Temp (Max. Vloerverwarming)
2018-02-18 20:55:20.367 (GW OpenTherm) General/Percentage (Maximum Relative Modulation Level)
2018-02-18 20:55:20.378 (GW OpenTherm) Thermostat (Room Setpoint)
2018-02-18 20:55:20.389 (GW OpenTherm) General/Percentage (Relative modulation level)
2018-02-18 20:55:20.401 (GW OpenTherm) General/Pressure (CH Water Pressure)
2018-02-18 20:55:20.429 (GW OpenTherm) Temp (Room Temperature)
2018-02-18 20:55:20.441 (GW OpenTherm) Temp (Boiler Water Temperature)
2018-02-18 20:55:20.458 (GW OpenTherm) Temp (DHW Temperature)
2018-02-18 20:55:20.465 (GW OpenTherm) Temp (OTGW - Outside Temperature)
2018-02-18 20:55:20.472 (GW OpenTherm) Temp (Return Water Temperature)
2018-02-18 20:55:20.489 (GW OpenTherm) Thermostat (DHW Setpoint)
2018-02-18 20:55:20.495 (GW OpenTherm) Thermostat (Max_CH Water Setpoint)
....
2018-02-18 20:55:37.356 OTGW: OpenTherm Gateway 4.2.5
2018-02-18 20:55:37.356 OTGW: WDT reset!
....
2018-02-18 21:03:58.986 User: Admin initiated a switch command (1375/OTGW Reset/Off)
2018-02-18 21:03:59.792 (GW MySensors LAN) Light/Switch (OTGW Reset)
2018-02-18 21:04:00.457 OTGW: OpenTherm Gateway 4.2.5
2018-02-18 21:04:00.457 OTGW: T00390000
....
2018-02-18 21:04:01.457 OTGW: B40393200
2018-02-18 21:04:01.458 OTGW: T80190000
....
2018-02-18 21:04:20.474 (GW OpenTherm) Lighting 2 (OTGW_DHW_active)
2018-02-18 21:04:20.483 (GW OpenTherm) Temp (Max. Vloerverwarming)
2018-02-18 21:04:20.489 (GW OpenTherm) General/Percentage (Maximum Relative Modulation Level)
2018-02-18 21:04:20.495 (GW OpenTherm) Thermostat (Room Setpoint)
2018-02-18 21:04:20.499 (GW OpenTherm) General/Percentage (Relative modulation level)
2018-02-18 21:04:20.510 (GW OpenTherm) Temp (Room Temperature)
2018-02-18 21:04:20.517 (GW OpenTherm) Temp (Boiler Water Temperature)
2018-02-18 21:04:20.523 (GW OpenTherm) Temp (DHW Temperature)
2018-02-18 21:04:20.534 (GW OpenTherm) Temp (OTGW - Outside Temperature)
2018-02-18 21:04:20.539 (GW OpenTherm) Temp (Return Water Temperature)
2018-02-18 21:04:20.561 (GW OpenTherm) Thermostat (Max_CH Water Setpoint)
Re: OTGW hangs with WDT reset!
Posted: Mon May 07, 2018 8:21 pm
by mrten
I'm having the exact same problem (WDT reset immediately after startup) after a year of no problems, so I'm wondering whether we're looking at a power supply/hardware problem.
Re: OTGW hangs with WDT reset!
Posted: Tue May 08, 2018 7:45 am
by sincze
mrten wrote:I'm having the exact same problem (WDT reset immediately after startup) after a year of no problems, so I'm wondering whether we're looking at a power supply/hardware problem.
Immediately after startup. MMM probably not exact the same thing as mine runs well for an amount of time.
As there was no reason mentioned for the reset I was thinking about HW failure somewhere as well and as it resets the PIC or voltage had my attention.
I changed the PIC with help of Kiwi Electronics and the problem was gone for 1 week, So thrilled.... but
After that I had a random lock up once every 1-3 days.
But now it has been weeks (so it still happens but not that much).
BUT it is getting warmer outside and the Heating unit does not have to do that much. So it still could be something the heater does...
Warmer.... -> weeks no reset.
As I've automated the reset switch i can monitor this exacty with Domoticz and I receive a Telegram message.
I also ordered a R-78E5.0-0.5 DC/DC-converter but did not mount it yet. I guess we will have to wait.
In my domoticz log I do see a 'restart' of the pic of some sort.. But it does not hang.
Code: Select all
2018-05-08 02:43:07.367 OTGW: OpenTherm Gateway 4.2.5
2018-05-08 05:52:39.156 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 00:14:25.401 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 02:43:23.376 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 06:00:00.946 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 07:30:11.508 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 09:34:33.210 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 12:22:35.509 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 14:04:23.588 OTGW: OpenTherm Gateway 4.2.5
2018-05-07 23:49:34.196 OTGW: OpenTherm Gateway 4.2.5
2018-05-06 00:34:58.832 OTGW: OpenTherm Gateway 4.2.5
2018-05-06 04:23:20.976 OTGW: OpenTherm Gateway 4.2.5
2018-05-06 08:30:19.378 OTGW: OpenTherm Gateway 4.2.5
2018-05-06 20:21:52.997 OTGW: OpenTherm Gateway 4.2.5
Re: OTGW hangs with WDT reset!
Posted: Tue May 08, 2018 9:13 am
by rpav
Unfortunately, my OTG has the same problem:
Code: Select all
14:45:57.278123 BE0800000 Data-Inv Message ID 128: 0
14:45:57.948281 T90822B41 Write-Data Message ID 130: 11073
14:45:58.265103 B50822B41 Write-Ack Message ID 130: 11073
14:45:58.938299 T00300000 Read-Data DHW setpoint boundaries: 0 0
14:45:59.253963 BC030410A Read-Ack DHW setpoint boundaries: 65 10
14:45:59.925079 T80000200 Read-Data Status: 00000010 00000000
14:46:00.247648 B40000200 Read-Ack Status: 00000010 00000000
14:46:00.915342 T10010A00 Write-Data Control setpoint: 10.00
14:46:01.148033 800000
14:46:01.159393 0800000
14:46:01.167420 0822B41
14:46:01.174990 0822B41
14:46:01.186770 0300000
14:46:01.194276 030410A
14:46:01.201898 0000200
14:46:01.213904 0000200
14:46:01.223649 0010A00
14:46:01.286453 800OpenTherm Gateway 4.2.5
14:46:01.298781 WDT reset!
15:51:00.346210 2B41
15:51:00.357083 0822B41
15:51:00.365920 0300000
15:51:00.374734 030410A
15:51:00.384915 0000200
15:51:00.411066 000enTherm Gateway 4.2.5
15:51:00.421236 WDT reset!
15:51:00.434804 2B41
15:51:00.438568 0822B41
15:51:00.446937 0300000
15:51:00.458958 030410A
15:51:00.466554 0000200
15:51:00.501226 000enTherm Gateway 4.2.5
15:51:00.505001 WDT reset!
15:51:00.519685 2B41
15:51:00.521538 0822B41
15:51:00.529922 0300000
15:51:00.546319 030410A
15:51:00.550150 0000200
15:51:00.575159 000enTherm Gateway 4.2.5
15:51:00.588378 WDT reset!
15:51:00.600757 2B41
15:51:00.604970 0822B41
17:27:01.584122 Command (via websocket from 192.168.123.233:57238): W
17:27:26.628946 Command (via websocket from 192.168.123.233:57236): GW=R
It appears for the first time after more then one year without any problem...
Re: OTGW hangs with WDT reset!
Posted: Mon May 14, 2018 5:52 pm
by hvxl
Interesting that the serial output starts to break up before the WDT reset. The reset does not clear that up, which I would expect if the problem was due to the OTGW getting into some strange state after a while. This does suggest that the problem is caused by something external to the PIC. Perhaps the power supply or the USB-serial device, as mrten speculated.
Re: OTGW hangs with WDT reset!
Posted: Wed Jun 06, 2018 9:54 am
by rpav
Unfortunately, OTG frozen again. It does not respond Reset command.
Is there any way how to trace the bug now or should I just perform HW reset and go on?
Code: Select all
08:04:54.689785 T10181644 Write-Data Room temperature: 22.27
08:04:54.958446 BD0181644 Write-Ack Room temperature: 22.27
08:04:55.678303 T80800000 Read-Data Message ID 128: 0
08:04:55.948332 BE0800000 Data-Inv Message ID 128: 0
08:04:56.668036 T90825341 Write-Data Message ID 130: 21313
08:04:56.936557 B50825341 Write-Ack Message ID 130: 21313
08:04:57.657660 T907E0101 Write-Data Master product version: 1 1
08:04:58.123783 B507E0101 Write-Ack Master product version: 1 1
08:04:58.643774 T00000000 Read-Data Status: 00000000 00000000
08:04:58.916142 BC0000000 Read-Ack Status: 00000000 00000000
08:04:59.637445 T10010A00 Write-Data Control setpoint: 10.00
08:04:59.904641 BD0010A00 Write-Ack Control setpoint: 10.00
08:05:00.675800 T10080A00 Write-Data Control setpoint 2: 10.00
09:19:01.044030 Command (via websocket from 192.168.123.1:48465): GW=R
Re: OTGW hangs with WDT reset!
Posted: Wed Oct 03, 2018 10:44 pm
by mrten
Has anybody configured sending of mails when a WDT reset occurs? I have (so I get a nice email every time it resets), but I've also set up warning mails for too high and too low a pressure and temperature.
So, besides the WDT reset mails, I see mails like these:
Code: Select all
The room temperature has dropped below 14 degrees. The current room temperature is 3.72 degrees.
The CH water pressure has dropped below 1.5 bar. The current CH water pressure is -127.70 bar.
The CH water pressure has dropped below 1.5 bar. The current CH water pressure is -63.99 bar.
The CH water pressure has risen above 2.5 bar. The current CH water pressure is 31.00 bar.
The room temperature has dropped below 14 degrees. The current room temperature is -107.80 degrees.
I'm pretty sure that it did not get that cold in my living room, the pressures are also pretty out of whack
Is this a possible hint towards the problem?
I also have two programs sending messages simultaneously to the OTGW, perhaps a buffer overflow of some sort? I'll try to combine them to see if the problem goes away.
(one sends PM=28 every 37 seconds, the other pokes the outside temperature from Weather Underground with OT=..)
Maarten.
Re: OTGW hangs with WDT reset!
Posted: Fri Oct 05, 2018 4:32 pm
by sincze
A yes strange things happen indeed.
Well after changing the PIC last year I incidently had WDT resets that needed to be reset by resetting the PIC.
Honestly I did not look at my logs either as I thought hey... no warning no problem.
Recenthly I had the yearly inspection so I disconnected the OTGW (I've used RCA plugs as connectors so that is an easy job) as most of these guys just don't like external equipment being connected.
It might interfere with their work. And they give me some examples that I can imagine.
He cleaned the whole installation and did not see any obvious problems.
After completion of his work I showed him what the OTGW could do and he was amazed by the graphs.
The next day I started to witness WDT resets again. Not once every x weeks but now back at 7 WDT PIC resets a day.
But it is getting colder outside as well. Still no clue why this happens. The automatic PIC reset does bring the device back on line.
Code: Select all
2018-10-05 12:26:40.659 Status: User: Admin initiated a switch command (75/OTGW Reset/On)
2018-10-05 12:26:41.882 Status: User: Admin initiated a switch command (75/OTGW Reset/Off
My Domoticz log shows a working OTGW with data ... then it says WDT reset.
I connect domoticz to the OTGW via Ser2net, that could be a connection renewal issue. (
Port already in use)
As domoticz does not receive valid data it will reset the 'hardware device within domoticz'
After a pic reset by domoticz as described above
Reset/On, most obvious the ser2net connection is killed and can be successfully rebuild -> I receive data again.
I could try experimenting what will happen if I don't have Domoticz reset its hardware device. Maybe I just notice a WDT Reset,,, but the PIC does not need the reset. I'll let you know,
Code: Select all
2018-10-05 12:17:44.565 (GW OpenTherm) Thermostat (DHW Setpoint)
2018-10-05 12:17:44.576 (GW OpenTherm) Thermostat (Max_CH Water Setpoint)
...
2018-10-05 12:18:04.519 Status: OTGW: OpenTherm Gateway 4.2.5
2018-10-05 12:18:04.519 Status: OTGW: WDT reset!
..
2018-10-05 12:19:00.136 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:19:01.137 Error: Restarting: GW OpenTherm
2018-10-05 12:19:01.546 Status: OTGW: TCP/IP Worker stopped...
2018-10-05 12:19:03.551 Status: OTGW: connected to: 192.168.**.**:****
2018-10-05 12:20:30.007 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:20:31.008 Error: Restarting: GW OpenTherm
2018-10-05 12:20:33.578 Status: OTGW: connected to: 192.168.**.**:****
2018-10-05 12:20:33.578 Status: OTGW: Port already in use
2018-10-05 12:20:33.579 Status: OTGW: Connection reset!
2018-10-05 12:20:33.579 Status: TCP: Reconnecting in 30 seconds...
2018-10-05 12:21:30.007 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:22:00.623 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:22:01.640 Error: Restarting: GW OpenTherm
2018-10-05 12:23:30.694 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:23:31.694 Error: Restarting: GW OpenTherm
2018-10-05 12:23:32.677 Status: OTGW: TCP/IP Worker stopped...
2018-10-05 12:23:34.678 Status: OTGW: connected to: 192.168.**.**:****
2018-10-05 12:25:01.130 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:25:02.131 Error: Restarting: GW OpenTherm
2018-10-05 12:26:30.749 Error: GW OpenTherm hardware (11) nothing received for more than 1 Minute!....
2018-10-05 12:26:31.749 Error: Restarting: GW OpenTherm
2018-10-05 12:26:32.734 Status: OTGW: TCP/IP Worker stopped...
2018-10-05 12:26:34.735 Status: OTGW: connected to: 192.168.**.**:****
2018-10-05 12:26:34.735 Status: OTGW: Port already in use
2018-10-05 12:26:34.735 Status: OTGW: Connection reset!
2018-10-05 12:26:34.735 Status: TCP: Reconnecting in 30 seconds...
2018-10-05 12:26:40.659 Status: User: Admin initiated a switch command (75/OTGW Reset/On)
2018-10-05 12:26:41.882 Status: User: Admin initiated a switch command (75/OTGW Reset/Off)
...
2018-10-05 12:27:38.762 (GW OpenTherm) Temp (Max. Vloerverwarming)
2018-10-05 12:27:38.766 (GW OpenTherm) General/Percentage (Maximum Relative Modulation Level)
Re: OTGW hangs with WDT reset!
Posted: Fri Dec 14, 2018 10:57 pm
by mrten
Replying to myself first: no the problem did not go away by integrating the two programs.
Hey @sincze, do you send PM=xx commands to the OTGW? I've been prodding at this again, replaced the PM=28 every so many seconds by UI=29 and AA=28 (no solar storage temperature needed here, but I do want the return temperature), it seems (just one day now) to run OK now. No guarantees yet...
Re: OTGW hangs with WDT reset!
Posted: Sat Dec 15, 2018 3:25 pm
by sincze
mrten wrote:
Hey @sincze, do you send PM=xx commands to the OTGW? I've been prodding at this again, replaced the PM=28 every so many seconds by UI=29 and AA=28 (no solar storage temperature needed here, but I do want the return temperature), it seems (just one day now) to run OK now. No guarantees yet...
I guess not. At least I don't see why Domoticz should send these messages
Re: OTGW hangs with WDT reset!
Posted: Fri Dec 21, 2018 11:39 am
by mrten
Nah, it started WDT-ing on me again, sometimes even a couple of times per day.
So I pulled the OTGW from my house and brought it to work. My coworker then noticed that I had soldered the LEDs very poorly on the header and redid the connections for me, so I'm now hoping that there was a spurious short circuit there.
What piqued our attention as well is that, when hooked up to the +24V at the
FULL BRIDGE RECTIFIER (pardon my ElectroBoom channelling), the oscilloscope showed a 2-2.5V drop when the LEDs flashed, so we added a 470uF and a 220nF capacitor there. I
think I see less bit errors now, but I'm not sure because I don't know how to reset the bit error counters in the 'Status' tab
Will report back...
Re: OTGW hangs with WDT reset!
Posted: Sat Dec 22, 2018 11:58 am
by hvxl
Hang on. You do have current limiting resistors installed in series with the LEDs I hope. The current through the LEDs should only be 5mA or so. They are indicators, not intended to light the room. Without resistors, the current will be the maximum current an I/O pin can sink. That is around 25mA. The device is not designed for that.
To completely rule out any issue caused by the LEDs, you can set them all to something that doesn't normally happen, like "Boiler requires maintenance". If you then still get WDT resets, you know you have to look somewhere else.
Interesting observation though. Please keep us posted.
Re: OTGW hangs with WDT reset!
Posted: Sat Dec 22, 2018 1:01 pm
by mrten
I do, ~470ohm per LED.