Continuous current and temperature monitoring with CompactRIO

[Batistuta002]

Hi all, I am a beginner for LabView and my recent task is to develop a program with LabView 2009 to take continuous measurements of current and temperatures of the anode blocks inside an aluminium smelter.

The controller I am using is CompactRIO NI cRIO-9024.

There are 10 anode blocks that i need to measure and the desired sampling frequency is 100Hz on each block.

After each measurment, the 20 signals (10 for current, 10 for temperature for each block) would be combined into one signal and it would be written to a txt file in a certain format (possibly using a built-in sub VI called write2measure)

Any idea on where I should start?? Again I am totally new to Labview and have close to 0 prior knowledge in programming..... Any help is greatly appreciated thanks!

[JordanG]

Good morning!

What modules do you have in your cRIO? Are you familiar with our Example Finder? This is a great place to start if you haven't had much experience programming in LabVIEW. You can access it by selecting Help >> Find Examples in LabVIEW. Select Hardware Input and Output >> CompactRIO. Here are different folders containing multiple examples to help you get started. I would check out the Basic IO folder and if you're working with specific modules, the Module Specific folder will be useful. You'll also want to make sure you've downloaded the RIO driver. The latest driver compatible with LabVIEW 2009 is RIO 3.3.0. You can access if here:

http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:du,ssnav:sup/q/rio/

Best of luck!

Jordan G.

[Batistuta002]

Thanks for the help! I have looked into the examples u suggested and they seem a lot more complicated than I thought!! However I have read some of the manuals and basic tutorials on Labview and have built some basic knowledge.

My current problem is how can i specify the sampling rate if I am using a timed loop? I attached the current VI i am working on and it would be greatly appreciated if someone can look through it and let me know any major mistakes regarding the frequency of the timed loop. Thanks!!!

[dkfire]

Dublicate post / question.

Keep it in one thead.

http://forums.ni.com/t5/LabVIEW/Failed-to-create-files-with-write-to-measure-vi/td-p/1665320