how to temperature control using pid controller

[reddy007]

sir how should i maintain a constant temperature in a chamber with pid controller 

[Kristoff2]

Hey reddy007,

There is some great info on PID here, and tons of general information around the web.  Let us know if you have specific questions and we'll be happy to help.

Thanks!

-Sam K

LabVIEW Hacker

Join / Follow the LabVIEW Hacker Group on google+

[reddy007]

i m trying to implement virtual instrument unfortunately facing errors please tell me the remedy for the errors

[Kristoff2]

Hey Reddy007,

You'll have to provide us with a lot more information before we can help you.  Think about it from our a readers perspective.  Just saying "I get errors" doesn't really help us much.

Please provide an explanation of your application and  what hardware are you using.  

What specific problems are you having and what results do you expect?  

Are you getting LabVIEW errors?  If so where in your code are the errors generated?  What is the error number and description?  Have you search for the error number (most are well documented in the NI Knowledge base system and a quick Google search will turn up a lot of results).

We can defiantly help you solve your problem, but the more information you can provide and the more specific you can make your questions the better.

Thanks!

-Sam K

LabVIEW Hacker

Join / Follow the LabVIEW Hacker Group on google+

[reddy007]

hi sir,

here my aim is that i would like to control room temperature by using pid controller.

my project description is as follows;

1.through the bulb which is in closed wooden box there we find temperature and it is measured by using j type thermocouple.there after signal is acquired by using DAQ6009.and process variable is maitain with the help of small dc fan.

this is project idea...i already develop one VI which i am attaching below....i have some errors please tell me how to solve them....

thanking you!

[reddy007]

hi sir,

here my aim is that i would like to control room temperature by using pid controller.

my project description is as follows;

1.through the bulb which is in closed wooden box there we find temperature and it is measured by using j type thermocouple.there after signal is acquired by using DAQ6009.and process variable is maitain with the help of small dc fan.

this is project idea...i already develop one VI which i am attaching below....i have some errors please tell me how to solve them....

thanking you!

[Kristoff2]

What specific problems are you having and what results do you expect?  

Are you getting LabVIEW errors?  If so where in your code are the errors generated?  What is the error number and description?  Have you search for the error number (most are well documented in the NI Knowledge base system and a quick Google search will turn up a lot of results).

We can defiantly help you solve your problem, but the more information you can provide and the more specific you can make your questions the better.

-Sam K

LabVIEW Hacker

Join / Follow the LabVIEW Hacker Group on google+

[reddy007]

sir here i am attaching screen shot of VI and in case structure.In second mode i need second order system simulation function,besides unable to get same condition such as they select from previous mode i add those screen shot also.so please provide information.

[Kristoff2]

Hey reddy007,

In the screen shot you posted the error list indicates that you're While loop conditional terminal is not wired. If you double click that line it will highlight the block diagram item with the problem.  You need to connect something to the stop terminal in the bottom right of the loop so that the loop does not run forever.

Double click the other errors and they will show you where they are coming from as well.  Let us know if you have more questions.

Thanks,

-Sam K

LabVIEW Hacker

Join / Follow the LabVIEW Hacker Group on google+