fpga

[surithchand]

Hi all,

Im Doing close loop projects with manual pid tuning for ramping((forward and reverse ramp rate:mm/sec) and controlling(setpoint mm).

I tried to find out the Auto gain adjustment for PID but still didnt got any idea.

can u pls give me any idea about this.

--oss

[muks]

Have you installed the PID and fuzzy logic tool kit. There is a direct function PID advanced autotuning.vi

[surithchand]

Yes i installed all those. i know those functions are all available but is it possible for all close loop controlling systems?

[GerdW]

Hi surithchand,

as your rather short message title suggests you want to implement that PID control on a FPGA target. LabVIEW allows only a subset of all availabe functions on the FPGA!

You will find a PID control function on your FPGA functions palette. But AFAIK there is no autotuning included…

Lesson learned:

Try to give more descriptive (but still not too long) message titles!

Provide all information needed to answer your question!

[muks]

Hi GerdW,

There is this function

[GerdW]

Hi muks,

I wrote "on the FPGA function palette"!

When you read the "Note" on your linked function you will notice it even doesn't run on a RT target, let alone the FPGA target!

There's a reason you need to read the context help carefully… 😄

[muks]

quoting from the help

"Implements a PID controller using a PID algorithm with advanced optional features, and applies autotuning to the controller. You can use this VI in RT and FPGA applications.

http://zone.ni.com/reference/en-XX/help/370401H-01/lvpid/pid_advanced_autotuning/

[muks]

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@muks wrote:

Have you installed the PID and fuzzy logic tool kit. There is a direct function PID advanced autotuning.vi

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I had quoted the function name correctly. Just messed up not relaising the link has changed .