How can I get bipolar current at the output of a PID controller?

[Sam]

I need to get bipolar current (+/-20mA) at the output of PID controller.Is that possible using "PID toolkit"?

[Patrick R.]

Sam,

The PID.vi within the PID toolkit contains an input that is called "Output Range". If you create a constant or control for this input, you should be able to set the two numerics as:

Output Low = -0.02
Output High = 0.02

That should take care of the PID control in LabVIEW. The only other thing to keep in mind is that your hardware supports bipolar current output. As long as this is the case, the output of the PID.vi should give you a value in between these limits and can be used to directly address the current output channel.

I hope that this answers your question. Good luck.

Patrick R.

[Sam]

Thanks Patrick!