Reading the signal from the alarm system and then glowing the LED and counting the glowing of LED for 10,000 cycles with the help of the counter

[Mohammed Muneer Khan]

I am designing a Labview program for the leakage detector systems. The sensor detects the decreasing level of inflammable liquid and gives the signal to the alarm. When the sensor is inside the inflammable liquid, no signal to the alarm and as the level of inflammble liquid decreases due to leakage, the sensor senses it and gives the signal to the alarm. so test this apparatus, i want to design the labview program. we have the testing apparatus, which moves the sensor inside and outside the liquid for testing and alarm is getting operating with this. I should count the 10,000 periods(each period is 3sec alarm ringing and for 3sec its stopping, 1period= 6sec) with the help of the counter.

Help me in this regard, i am new to the labview.

Muneer

[tbob]

Are you using a counter to get the LED's input?  Which counter?  If you read the data sheet that comes with the counter, there should be an explanation on how to set it up.  Also if you search the Labview examples for "counter" you will see some examples that show you how to program the counter and get the count.  To search the examples, start Labview.  Click the down arrow next to the Open button.  Then click Examples on the sub menu.  The NI Example Finder window will pop up.  Click on the Search tab.  Type counter in the search box and click Search.  You will see counter and counter/timer in the box below.  Double click on one and it will show you a list of example vi's on the right.  Double clicking on any vi will open it up.  Look at the block diagram, modify it for your use.  If you have further questions, post a message, attach your vi, and tell us what version of Labview you are using.

[Mohammed Muneer Khan]

Hi,

Thanks for the reply.

Yes i should use a LED as input for the counter. I am not able to decide which counter should i use for my application. Labview has a list of counters like Easy,Intermediate and advanced. which one should i use among them? I m working on Labview 6i , i will search the examples as u have suggested me and when i have further doubts, i will again post a message in the discussion forums.

Best Regards,

Muneer

[tbob]

Since you are a beginner, use Easy.  Should be good enough for what you want to do.