Feedback loop NI DAQ mx

[Johnnykoo]

Hi, I'm here to get some help on my program.... since our lab did not have control toolkit,

I had to build my simple PID program.. question is (I'm not sure if it's program question or not)

1. Will my pid work fine ? I just took the basic concept of PID and built it.. just like the picture above...

2. after let pid take care of the error, should I directly send it to the DAQ output ? or should I add something on to it ?

this might be a control question.. but I was really confused.. whetere I have to just send the pure error to my output(in this case, amplifier)

or I have to do something with either setpoint or the previous sesor reading(uncorrected)

we're trying to get the control toolkit sooner or later, but in the mean time, I have no choice but stick to this program..

please help me mr. NI

Thank you

[SMeserve]

Hi johnny,

Your PID logic seems to be sound and you should be able to take the output of the PID loop and wire it to the DAQ output.  I'm not sure what you would do to it before you send it to the DAQ output anyways.  Thanks.