I can't add global virtual chanels into task in MAX or DAQ assistant.

[Roddy]

After creating a global virtual channel I try to add it into a task (MAX or DAQassist)but it just add a blank space in channel settings nad gives an error. I am using cDAQ 91721 and module NI 9213, any ideas of how to solve the problem?

but it adds nothing, just and empty space with ana error

[CWolf]

Hello Roddy,

What version of the DAQmx drivers are you using?  If you haven't already, I would recommend upgrading to the latest version (currently 9.0.2). 

Also, does this happen only with this specific global channel, or with any Global channel?  Are you able to do other things with the Global Channel?  Also, does it throw any errors if you create a task with the same physical channels (rather than using the Global Channel)? 

-Christina

[balki]

What happens when you try and add a physical channel in the Assistant configuration page?

[Roddy]

Well, I tried to upgrade to the lasted version 9.02, I finally can add the global channels to the task, but now the new problem is that I can not use the global channel with MAXassistant.

For example, I have a TC01 global channel and I add the task create and numerical indicator, I try to run it  and it says:" PLEASE CONTACT LABVIEW SUPPORT"...

The most annoying thing is that when I run labview in XP i don't have any problem--maybe is because I am using VISTA.

[Roddy]

One more thing, now I get this:

I am just trying to read a channel, nothing else. 

[CWolf]

Can you run any of the LabVIEW example programs, or do you get similar errors with those as well? 

[balki]

I'm wondering if you're confusing the concept of a global virtual channel with a physical channel. Your global virtual channel is a DAQmx software concept that allows you to group and configure related physical channels to use in your program. However, you have to specify what physical channels on your device you want to use. If you are not specifying any physical channels, than that would explain why your task is invalid.

Can you use test panels or examples that shipped with your ADE?