Ok, I was already afraid of that
If someone is interested in a soldered OTGW with USB or Serial interface, I have a spare one
Stef
Search found 14 matches
- Sat May 23, 2015 10:16 am
- Forum: Opentherm Gateway Forum
- Topic: OTGW: Error 03
- Replies: 10
- Views: 11838
- Fri May 22, 2015 11:29 pm
- Forum: Opentherm Gateway Forum
- Topic: OTGW: Error 03
- Replies: 10
- Views: 11838
Re: OTGW: Error 03
For the opentherm support, I also couldn't find out if my boiler is supported or not. The only thing I found is that I can connect a 'Kamerthermostaat Logamatic iRT30'. I couldn't find out if this is an opentherm thermostat or not :-( The voltage is 11,3 V DC. The short lead current is around 13mA. ...
- Thu May 21, 2015 11:12 pm
- Forum: Opentherm Gateway Forum
- Topic: OTGW: Error 03
- Replies: 10
- Views: 11838
Re: OTGW: Error 03
I already tried that yesterday but that didn't helped.
For reference, the boiler is a Buderus logamax GB112.
Stef
For reference, the boiler is a Buderus logamax GB112.
Stef
- Wed May 20, 2015 10:35 pm
- Forum: Opentherm Gateway Forum
- Topic: OTGW: Error 03
- Replies: 10
- Views: 11838
OTGW: Error 03
Hi, I finally got my OTGW working :) I only have an ON/OFF thermostat. When I connect my boiler to the OTGW, I see these messages every second: 22:00:05.305594 Error 03 22:00:05.412562 Error 03 22:00:05.502083 Error 03 22:00:05.622564 Error 03 22:00:05.739956 Error 03 22:00:05.839758 Error 03 22:00:...
- Thu Feb 05, 2015 10:05 am
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
Hi, I have good News! I changed the MAX232 with an other one I bought, and huray, I got 2-way communication :) Thx, for all the support! Next step is using the gateway to monitor and control my boiler, but I'm leaving next week for a trip of 4 weeks in South-Africa so it can take a while before I re...
- Wed Feb 04, 2015 7:22 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
It's just easier to measure the voltage on IC1 then on IC2 when you remove the IC1 from the socket
I also tried to connect pin 8 and 11 from IC1 to create bridge as you suggested, but the characters are not echoed back.
Stef
I also tried to connect pin 8 and 11 from IC1 to create bridge as you suggested, but the characters are not echoed back.
Stef
- Wed Feb 04, 2015 12:35 am
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
I measure 0 Ohm between the 2 pins mentioned.
I'm pretty sure my self made connections are fine.
With IC2 removed and the RS232 plugged in, I measure 5V on pin 12 of IC1.
I also measure 3V on pin 11 of IC1 and I don't know if that's normal... With IC1, this is 5V.
Stef
I'm pretty sure my self made connections are fine.
With IC2 removed and the RS232 plugged in, I measure 5V on pin 12 of IC1.
I also measure 3V on pin 11 of IC1 and I don't know if that's normal... With IC1, this is 5V.
Stef
- Mon Feb 02, 2015 10:12 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
Hi, I was able to get output from the gateway in otmonitor. When I apply power, the diagnostic pops up and I can see the diagnostic menu. However I can not enter something in the menu. So it looks like the gateway is transmitting data but not receiving. I checked the voltage coming in from the PC to...
- Mon Feb 02, 2015 8:52 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
Hi,
I was able to to get otmonitor to connect to the gateway by using a spare connector and some wiring.
So I'm 100% sure I got the wrong RS232 cable!
I also saw that my drawings are not 100% correct. I will redraw them and post them here.
Stef
I was able to to get otmonitor to connect to the gateway by using a spare connector and some wiring.
So I'm 100% sure I got the wrong RS232 cable!
I also saw that my drawings are not 100% correct. I will redraw them and post them here.
Stef
- Mon Feb 02, 2015 7:54 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
I get no response with the wire.
I thought I posted an update this weekend, but the post is gone.....
This is the cable I have:
But I think that I need a cable like this:
Stef
I thought I posted an update this weekend, but the post is gone.....
This is the cable I have:
But I think that I need a cable like this:
Stef
- Sun Feb 01, 2015 5:59 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
Re: No serial connection
I ordered my OG from https://www.kiwi-electronics.nl/ Is it possible that they gave me the wrong RS232 cable? When I look at the pins, on the OG there is from right to left: 1: unused 2: receive 3: transmit 4: unused 5: ground When you look at the rs323 specs and use this numbering scheme, the pin l...
- Sun Feb 01, 2015 1:12 pm
- Forum: Opentherm Gateway Forum
- Topic: Error in assembly sheet
- Replies: 1
- Views: 3276
Error in assembly sheet
On page http://otgw.tclcode.com/schematic.html, there is an error in the assembly sheet.
The 0V and +5V of IC2 are reversed.
Stef
The 0V and +5V of IC2 are reversed.
Stef
- Sat Jan 31, 2015 7:51 pm
- Forum: Opentherm Gateway Forum
- Topic: No serial connection
- Replies: 12
- Views: 10481
No serial connection
Hi, I ordered and soldered a Opentherm Gateway with a serial interface. I followed the instructions on http://otgw.tclcode.com/debugging.html and as far as I can check, all voltages are ok. The gateway has the default diagnostic firmware loaded. But Opentherm Monitor is unable to communicate with th...
- Tue Jan 27, 2015 11:59 pm
- Forum: Hvac, Heating Opentherm Forum
- Topic: ON/OFF thermostaat, OT gateway and/or opentherm thermostat
- Replies: 0
- Views: 4225
ON/OFF thermostaat, OT gateway and/or opentherm thermostat
Hi, I currently have an ON/OFF thermostat that controls a Logamax Buderus GB112. This is working fine for the last 10 years. I also have an opentherm gateway. I don't have an opentherm thermostat. I also have a Wago PLC. I want to use the Wago PLC together with a server running Linux to control the ...