Opentherm problem OTGW: random number

For OpenTherm-gateway related questions in Domoticz
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martjah
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Opentherm problem OTGW: random number

Post by martjah » Wednesday 16 March 2016 9:21

Hello,

since a week i have a problem with my OpenTherm gateway but i cannot find any information about it. It worked great for over a year now and i haven't changed anything (except that the Heater has been shutdown last week).

Now i get the following messages:
2016-03-16 08:19:06.529 OTGW: T00090000
2016-03-16 08:19:06.529 OTGW: R007B0000
2016-03-16 08:19:06.530 OTGW: BC07B0143
2016-03-16 08:19:06.530 OTGW: AC0090000
2016-03-16 08:19:07.530 OTGW: T80190000
2016-03-16 08:19:07.531 OTGW: BC0193400
2016-03-16 08:19:08.532 OTGW: T10015A00
2016-03-16 08:19:08.532 OTGW: BD0015A00
2016-03-16 08:19:09.532 OTGW: T00000300
2016-03-16 08:19:09.533 OTGW: BC000030A
2016-03-16 08:19:10.533 OTGW: T90101480
2016-03-16 08:19:10.534 OTGW: R00740000
2016-03-16 08:19:10.534 OTGW: B4074B506
2016-03-16 08:19:10.534 OTGW: A50101480
2016-03-16 08:19:11.535 OTGW: T80190000
2016-03-16 08:19:11.535 OTGW: BC0193400
2016-03-16 08:19:12.536 OTGW: T10015A00
2016-03-16 08:19:12.536 OTGW: BD0015A00
2016-03-16 08:19:13.537 OTGW: T00000300
2016-03-16 08:19:13.538 OTGW: BC000030A

Can anyone tell me what that means?

It works via Opentherm.exe:
Image

martjah
Posts: 15
Joined: Wednesday 11 June 2014 11:54
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Re: Opentherm problem OTGW: random number

Post by martjah » Thursday 17 March 2016 23:54

So i have a update, not a solution.

The "random" numbers are not random. It are the Opentherm messages that are the same as in the logging with OTmonitor.exe.
Image


But i do not know why Domoticz cannot handle them. I did also update Domoticz to the latest stable version but that did not solve the problem.

Luigi87
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Re: Opentherm problem OTGW: random number

Post by Luigi87 » Friday 18 March 2016 0:11

I had the same problem some time ago. From that moment i have set my OTGW aside. So i am also currious whats happening.

martjah
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Re: Opentherm problem OTGW: random number

Post by martjah » Friday 18 March 2016 13:24

I've solved my problem :)

The OTGW was in an "unknown" state. If you open OTmonitor.exe and push F7, you can see the current mode and switch mode.
I tried switching to Gateway but the OTGW did not respond to that (neither the custom GW=1) command.
So i tried updating the firmware and i had to manually reset the unit, i unplugged the OTGW and plugged it back in and it jumped to "Gateway" mode.
The update afterwards but that's not an issue for me because i did not need to update it.

Luigi87
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Re: Opentherm problem OTGW: random number

Post by Luigi87 » Friday 18 March 2016 14:32

martjah wrote:I've solved my problem :)

The OTGW was in an "unknown" state. If you open OTmonitor.exe and push F7, you can see the current mode and switch mode.
I tried switching to Gateway but the OTGW did not respond to that (neither the custom GW=1) command.
So i tried updating the firmware and i had to manually reset the unit, i unplugged the OTGW and plugged it back in and it jumped to "Gateway" mode.
The update afterwards but that's not an issue for me because i did not need to update it.
Right i will also try this soon. I hope my OTGW will work again. Have a lot of trouble with it :?

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najtram
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Re: Opentherm problem OTGW: random number

Post by najtram » Wednesday 16 August 2017 11:31

I had the exact same issue.

First I tried to solve it this way:
- removed OTGW from hardware tab. (not sure if this was needed, bad thing is, the log is also deleted!!!)
- readded OTGW on hardware tab
- no result.
- deactivated OTGW in hardware tab.

Then:
- removed USB and power from OTGW.
- counted to 10 or 20, can't remember.
- reconnected OTGW
- reactivated OTGW in hardware tab.

Working!
Domoticz on Raspberry Pi 3 with USB RFLink Gateway at 433 Mhz for several KAKU switches. Bluetooth Soma Smart Shades. USB Opentherm Gateway connected to Remeha iSense with Remeha Tzerra boiler. ITHO ecofan RFT (ESP8266+CC1101). Almost running homebridge.

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