05-26-2008 06:34 AM
05-27-2008 03:14 PM
05-30-2008 05:42 AM
Thank you very much for your reply. Yes, I use the PID Control Toolkit and I have already manage to perform PID control using the counters. My real question is if there is a chance to use digital lines to perform PID control. If yes, I wonder if there is an example to advise.
Thanks in advance
06-02-2008 10:04 PM
Hi thorfano,
I understand it will be difficult to use the digital lines of the 6212 to perform PID control since they are static, as RT4CY pointed. What exactly (what type of sensor) are you measuring in your current application? What is the input signal to your PID circuit? Are you using any kind of encoder? Is this the same you want to measure with the digital lines?
06-03-2008 03:50 AM
Thank you Ana for your reply. I want to perform temperature control. I measure a voltage signal using an AI voltage DAQmx, and I use this voltage to calculate the temperature (through an equation) which is the input signal to my PID circuit.
Best Regards
06-05-2008 09:48 AM
Hi thorfano,
I’m a little confused about your application; from your last post I understand you are measuring the Analog Input voltage to control the temperature. However, before you said you were using the counters. My main question is, do you want to use the Digital lines to be the output of your PID circuit or you want to connect the inputs to them. If it is the first one, I understand you can manipulate the results of the PID circuit to be digital value and output that in a Digital Output line. If it is the second case, and you want to connect the inputs to the digital lines it won’t be possible to measure an analog voltage using the Digital inputs lines. Thorfano, I hope this is helpful, if not please post back.
06-05-2008 10:03 AM
06-06-2008 07:48 AM
Thank you Ana and RT4CY for your help. The example that RT4CY sent seems to be exactly what I need. If I have further problem in applying it to my system I will contact again.
Best Regards