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+-- Forum: Third Party (interfacing to Comfort) (https://www.comfortforums.com/forum-5.html)
+--- Forum: C-Bus to KNX Translator (https://www.comfortforums.com/forum-103.html)
+--- Thread: Trouble connecting (/thread-5996.html)
Trouble connecting - Home - 09-21-2026
I have just powered up a CBUS to KNX translator
I have both CBUS and KNX connected
I am unable to connect using the USB cable.
In settings there is no pull down menu to indicate a USB found and in the serial no line its just 'blued out' I cannot type anything.
If I go transfer system information then I get a small window appear
"error opening USB port: FT_INVALD_HANDLE
If I remove the cable then it says: FT_DEVICE NOT FOUND
I have just gone into device manager and can see an active USB Comport4 (only one present and it disappears when cable removed).
- Says device is working properly
- Set at 9600 bits per second
- Parity : none
- Stop bits: 1
- Flow control: none
Under events this must have happened in the background ! : "Driver Management has concluded the process to add Service FTSER2K for Device Instance ID FTDIBUS\VID_0403+PID_6001+AH00SBLYA\0000 with the following status: 0."
I have just tried changing the SB cable
I have also tried changing the USB daughter board
No change to the end result
RE: Trouble connecting - Home - 09-21-2026
OK
It was to do with screen resolution !
The pull down menu to the side did not appear !
Have now connected BUT get the following exceptions :
Unhandled exception:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at Comfort.FormCbusKnx.InterpretCbusReceivedMessage(String message)
at Comfort.FormCbusKnx.InterpretMessage(String message)
at Comfort.FormCbusKnx.AddMonitorData(UcmData ucmData)
at Comfort.Form1.ProgressChanged(Object sender, ProgressChangedEventArgs e)
at System.ComponentModel.BackgroundWorker.OnProgressChanged(ProgressChangedEventArgs e)
at System.ComponentModel.BackgroundWorker.ProgressReporter(Object arg)
Should I be worried !
RE: Trouble connecting - slychiu - 09-21-2026
we have not seen that
try changing the conection to serial port and select the com port
RE: Trouble connecting - Home - 09-21-2026
In the software would it be possible to add another column for a descriptor please ?
When you have a long list of numbers difficult to cross refence with three items of software on the go at once !
thanks