How to use an internal counter of the cDAQ-9172 for measure PWM and generate the frequency?

Hello

Requirement of my project is to measure 6-channel PWM and generate 5 frequency channels.

Suggestion of engineer OR bought cDAQ-9172 chassis and NI 9423 (8 DI correlated) and NI 9474 (8 correlated DO) for this requirement. I have a few questions

Article:

1 > what should I know to customize my CompactDaq 9172 chassis

http://zone.NI.com/DevZone/CDA/tut/p/ID/9367

I know that this way to synchronize the physical support 32 correlation system pin o for housing 1-4.

=> I'm not really sure how to use these channels synchronization support.

2 > using internal counters on one NOR cDAQ-9172 as a sample for other tasks clock

http://digital.NI.com/public.nsf/allkb/ADFC4DD8C9690232862575B70079FBD4

I know that I can change the ownership of the physical channel so I can get 2 meter outside the frame 6 and 7.

=> I do not think that this solution will be me because I can use only 2 counters with this method.

Could someone tell me please how to fix my project requirement? How to choose the setting for DAQmx screws?

I have experience with measure the PWM and generate the frequency, but with separated against only.

Best regards

Thang Nguyen

Hey Thang.

AHA... for this, you can use the channel property node.

See you soon

Lab

Tags: NI Hardware

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