Pressure regulator control with PCI 6024E Daq Card

[Ibryapici]

Hi all,

I want to control a pressure regulator with PCI 6024E Daq Card.

Pressure regulator properties.
1. +24 V DC and power GND
2. Set input (0..10 V) and setGND

and 0..10 Bars work with pressure value.

i want to ask , my pressure value is 0-7 Bars so how can use a vi for change Daq card output voltage value is match. And which toolbox can i use? sample PID? and how..

[Ed W]

Hi Delidolu,

Thank you for posting to the NI forums.  I’m a little unclear about some aspects of your application.  Just to be sure, the PCI-6024E has an analog input range +/-10 V.  So this device will not be able to measure a 24 V signal, and this may actually damage the device.

Otherwise, I don’t believe that you’ll need any specialized toolkits for this application – you should be fine with the DAQmx driver, available for free download from our website.

DAQmx Download

You can convert the voltage signal into pressure units using a custom scale for your task.  This can be done in Measurement & Automation Explorer (MAX) when you create your task, or programmatically.  There is a nice Knowledge Base entry that explains how to do this.

Programmatically Create a Custom Scale in DAQmx

I hope this helps.  Please post back if you have further questions.

Ed W.

Applications Engineer

National Instruments

Message Edited by Ed W on 04-05-2007 05:56 PM