LabVIEW
Get virtual/global channel names from a DAQmx Task
I think you got it with the channels list coming from the DAQmx Task node.
Use the Variant to Data function with an empty array of strings as the type to get the channel list as an array of strings.
Message Edited by caz on 01-03-2008 09:05 PM
Hi Nickerbocker,
I understand that you would like to pull out the names of the global virtual channels that are in your task. I created a task that had both a global virtual channel and a local virtual channel and then used the following code to pull out an array of channel names. As you can see I used the task property node to pull out the channels that were in the task (which would be the alias name) and then autoindexed them in a for loop. These channel names were fed into the active channel property of the Channel node and then the names were pulled out. I also made an array of booleans to check if the channels were global or local. As I said before, since one of my channels was global, the boolean array shows one true and one false. Hopefully this was helpful!
Message Edited by Vanessa L on 01-04-2008 02:08 PM
Message Edited by Vanessa L on 01-04-2008 02:09 PM
I understand that you would like to pull out the names of the global virtual channels that are in your task. I created a task that had both a global virtual channel and a local virtual channel and then used the following code to pull out an array of channel names. As you can see I used the task property node to pull out the channels that were in the task (which would be the alias name) and then autoindexed them in a for loop. These channel names were fed into the active channel property of the Channel node and then the names were pulled out. I also made an array of booleans to check if the channels were global or local. As I said before, since one of my channels was global, the boolean array shows one true and one false. Hopefully this was helpful!
Message Edited by Vanessa L on 01-04-2008 02:08 PM
Message Edited by Vanessa L on 01-04-2008 02:09 PM
