Labps3005dn USB connection


Just got my Labps3005dn_programmable dc lab power supply.
Trying to Control it from my PC.
Installed the software, connected to PC with USB. Started and launched the software (Velleman V1.0.5.622).
The Com Config window opens, but there is no USB-port to select, only COM1…COM6.
Old software ?


I just found the Answer myself.
By testing the COM-ports one by one I found out that the USB-port works when I select port COM6!
I dont anderstand why I would have to bother about Com-ports to get the USB Connection working. But now I an up and running.
I would aprechiate if a Velleman person could explain this for me.