CNV to CN2

[alan]

Hi all
have made the cable as per PDF so CNV van talk with CN2
Nothing is happening , can not find any info on this topic can antone help

[Evan Ludeman / T8]

Double check that you have an XC license (CNv splash screen will tell you this).
Since you made your own cable, double check that you are connecting serial port to serial port and that pin connections are correct...
Either power up CNv and CN2 simultaneously, or power up CNv first.

If this doesn't work, then call Williams Soaring.

[SteveB_Z5]

What is to be gained by connecting the CNV to CN2?  I don't know if mine are connected (both installed when I bought the glider). 
Wondering,
Steve

[carbonprop]

When CNII is connected to CNv if you change MC on CNII it automatically changes on CNv. If you change ballast on CNII it changes on CNv.  If you change things on CNv CNII does not change.

[Evan Ludeman / T8]

The main thing you gain with CN2/CNv comm is wind information from CNv transferred to CN2.

You also get transfer of updates to ballast/bugs/MC settings as previously noted. 

The reason MC settings on CNv don't affect CN2 is because many pilots like to have different MC settings on the two instruments.  Typically the MC is set a knot higher on the CN2 to build in final glide margin, MC is set on CNv with regard to how fast you plan to fly. 

[Chris Hostettler]

One important thing not mentioned:
The display of the reachable distance (purple and red "circle") change due to the wind information CNv sends to CN2.
Cheers