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PWM with scan engine and NI-9477

Hi

I have a cRio-9024 and a 9114 Chasssis (FPGA).
In a older (LV8.2) cRio application we did PWM regulation programmed on FPGA with a NI-9477 DO module.
I tried now to do this with scan engine but I couldn't find the way to get a PWM output to the 9477.
Is that just possible with certain Modules?

Best

Hannes Wydler

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Message 1 of 5
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Hi,

 

there's an example in LabVIEW about 'PWM - Scan mode'.

To load an example, click on Help>Find  Examples... Then a window opens and you can click on Search

 

Best regards,

Maximilian Klimmer

 

 

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Message 2 of 5
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Thanks Maximilian

I found this example before. It's done with a NI-9474 Module.
If you right click the Module in the project you can choose in the Properties "Module Configuration" and "Specialty Digital Configuration". There you can configure PWM.
But if I do so with my NI-9477 Module there is only " Module Configuration" and no "Specialty Digital Configuration".

Therefore my guess, for some reason it is not possible with the Module NI-9477.

Best regards
Hannes Wydler

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Message 3 of 5
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Hi Hannes,

 

sorry I haven't seen that.

I researched about which C series modules support specialty digital functions in Scan Mode and I found the following link:

 

What C Series Modules Support Specialty Digital Functions in Scan Mode

http://digital.ni.com/public.nsf/allkb/2664A3D35D9F79A4862576B300277E35

 

It's quite up to date, so I think you're right that it's not possible to use the NI 9477.

 

Best regards,

Maximilian Klimmer

 

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Message 4 of 5
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Hi Maximilian

 

Thank you for help.
Strange that the DO-Module 9477 is not even in the list.
Seems you are right - the 9477 is not configurable with specialty digital functions like PWM.
To bad, it's the only one with 32 channels.

Best regards

Hannes Wydler

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