Generating PWM with NI USB-6009 for a heating element

[jozzi99]

Hi guyz!
I am currently writing my diploma thesis, which is about skin type sensors... I have an Omega HFS-4 heat flow sensor and a heating element mounted together. The main concept is, that I have to make a program in LabView, with which I can control the heating element by PWM (digital output, not counter output) and I have to view the heat flow and the temperature from the thermocouple. 
The heating element is connected to a NI USB-6009 card, the HFS is connected to a NI 9211 card. 

My main problem is that I don't have a clue, how I can generate PWM through the USB-6009 card. I don't even know, how that program would have to look like... 
Please, someone, who has already made this kinda program, help me!

Thanks beforehand.

With regards,

José.

[Electromecha]

Generally PWM's are implemented with hardware counters but there are examples of creating them with DIO...

https://decibel.ni.com/content/docs/DOC-12911

Another option since you're looking for a PWM output would be to replicate the functionality of a counter output with an analog output using a timing method of hardware timed single point.  This will have significant performance limitations over using traditional counter hardware but may be sufficient for your application and still provide decent determinism.

[BalazsNagy]

Hi jozzi99!

In my opinion you will find all the info needed in the previous post.

Do you have any additional questions?

BR,