+- Comfort Automation/ Security System Forums (https://www.comfortforums.com)
+-- Forum: Third Party (interfacing to Comfort) (https://www.comfortforums.com/forum-5.html)
+--- Forum: KNX (EIB) (https://www.comfortforums.com/forum-12.html)
+---- Forum: KNX Support (https://www.comfortforums.com/forum-112.html)
+---- Thread: UCM/KNX with C-Bus to KNX Translator (/thread-5220.html)
- mgedrych - 09-16-2020
My C-Bus to KNX Translator is no longer talking to KNX. It had been working, but now it has stopped.
D10 blinks red every now and then. D9 is steady red. D8 is off.
There is 29V at the KNX connector.
What might this mean?
Thanks
- slychiu - 09-18-2020
What is the state of RDY, BUSY1, BUSY2, ERRl ledsAlso please check the status bar on the bottom left on the NX screen. It should give you the current status on the UCM/KNX?
- mgedrych - 09-18-2020
D4 \"RDY\" (Green) is on
D8 \"IN1\" (Red) is off most of the time; it blinks on every now and then.D9 \"OUT1\" (Red) if on most of the time; it blinks off every now and then.D10 \"ERR1\" (Red) if off most of the time; it blinks on every now and then.
I don\'t know which LEDs you\'re referring to as BUSY1 and BUSY2. Those words do not appear on the PCBs and they\'re not mentioned in the \"CBus to KNX Translator\" manual.
D10 is ERR.
Photo of PCBs is attached.
I don\'t know what \"NX screen\" means. In the I/O monitor of the CBus Translator I can see that data is being sent to KNX but nothing is coming back:
- slychiu - 09-18-2020
Please check the KNX bus wires are screwed frmamly and has god contact. It apears that the data is sent to KNX but the module cannot detect any repy from the bus, hence the BUSY2 led is on
If the connection is good, the cbus to knx module or the KNX submdoule may be faulty