how to execute lag time only for once

[Mr_Tejaskumar]

Dear Friends,

I want to on and off my heaters only when some X condition is fulfill. Once the conditions is TRUE only that time lag time should be executed and then it shoud run normally. when condition X get FALSE, and then again TRUE ...again lag time will be execute...I am attaching a simple plot.. which can helps you for better understading of my problem.

Looking forward to your valuable reply

Regard´s

Patel

[taper]

For that kind of timing the Elapsed Time function works well.  Set it for 5 min, keep the Reset line True until condition X, then wait for it to time out.  The benefit of this function is that it keeps counting through loop iterations, so you can put it in a fast loop.  Read the Time Elapsed? output to trigger your heater.  You'll need a little additional logic to keep the Reset line input to what you want, but that shouldn't be too hard.

[Christian Mergl]

How do you control the heater, what is the interface?

What hardware are you using?

Christian

[Mr_Tejaskumar]

I am using cRIO 9074, to control 3 heaters and variable pumps

[Christian Mergl]

Scanmode or FPGA?

What did you test so far?

Do you have an VI?

The more information you give as the better we can help.

Christian

[Mr_Tejaskumar]

Thanks ..

I gpt it 🙂