LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

Duplicating a CTR Global Virtual Channel in MAX does not update the CO.Pulse.Term setting

Solved!
Go to solution

Hi, 

Here is the issue description:

 

MAX version: 4.6.2f1

daqmx:  9.0.2

Hardware: cDAQ-9178 , NI-9474 Digital output.

For this module one has:

  • crt 0 out  <--> PFI3 
  • ctr 1 out  <--> PFI7
  • crt 2 out  <--> PFI1
  • ctr 3 out  <--> PFI5

 

1. In MAX create a Global Virtual Channel as a CTR output on ctr0.

2. use the Duplicate in the menu to create a second counter output. Change its name, and change it ctr output to ctr 1 OUT.

3. In MAX, the Pulse Output Setup pane should reflect the change by showing the ouput terminal pointing to the proper PFIi

 

4. Export the settings to an INI file, and look at the CO.Pulse.Term settings for both CTR channels: they will both appear with the SAME PFIi !

 

5. Using LabVIEW Write a vi that generate pulses on these 2 channels , you will get Error -89137 saying a PFIi resource is already used. If you look at the Task property CO.Pulse.Terminal, it returns the same for both tas, which is the same error seen in the ini file.

 

Can someone at NI check this? Thx.

 

Laurent

 

 

 

 

 

PS: I posted this message in the LabVIEW board as I did not find one for MAX

0 Kudos
Message 1 of 6
(2,711 Views)

Hi Laurent,

 

I verified this behavior with DAQmx 9.1 and a simulated device.  I will file this as a Corrective Action Request (CAR). Creating the channels manually works correctly and produces the correct .ini file.  Sorry for any inconvenience this may cause.

 

 

Regards,


h_baker
National Instruments
Applications Engineer
0 Kudos
Message 2 of 6
(2,675 Views)
Can you post the car#?
0 Kudos
Message 3 of 6
(2,662 Views)

Hello,

 

We are currently working on processing the CAR. An update will be posted, thanks

 

Best regards,

 

Ali M

Applicatons Engineer

National Instruments

0 Kudos
Message 4 of 6
(2,640 Views)
Solution
Accepted by topic author LDBM

Hello,

 

Corrective Action Request (CAR) ID: 228780

 

Best regards,

 

Ali M

Applications Engineering

National Instruments

0 Kudos
Message 5 of 6
(2,616 Views)

Thx!

Laurent

0 Kudos
Message 6 of 6
(2,604 Views)