Measuring from multiple devices simultaneously

[astroLaura]

Hi there,

I'm looking to read current from (maximum of) 8 picoammeters at once in LabVIEW. At the beginning of my code, it asks the user to select which devices are in use. This menu (from "Configure Prompt for User Input") outputs a boolean based on which checkboxes are selected.

My problem is that I don't know what to do with this boolean information going forward. Additionally, I want to be able to write data to a file for ONLY the devices that are in use - so for instance if channels 2 and 3 are in use, I don't want channel 1 to show up as a blank column on the file - I don't want it to appear at all. The only solution I've thought of is trying a ridiculously complex way of doing this using case structures, but if there's something simpler I can use, I'd appreciate any help I can get. I've included a screencap of what my code looks like at present, although there's not much there yet. Please let me know what you think. Thanks!

[RTSLVU]

Seeing as you chose to use a stacked sequence, I would say you need to start over and use a proper program architecture. 

Beyond that there is nothing else to say besides please post actual code (your VI) not a picture of it.

It would also help to know what these pico ammeters are, make, model, and interface. 

[aputman]

I think some tutorial videos are in your near future.  Links to some free ones can be found in just about every topic on the Labview board.

[astroLaura]

Hi there, sorry I didn't specify. I guess what I'm looking for is guidance on where to start. I've tried looking for tutorials and examples, but I'm not familiar with the search terms I should be using and haven't come up with much because of that. My background is mostly in physics so unfortunately I'm not too familiar with how code should be structured or what architecture even is.

If you could give me some pointers on which keywords to use or methods I should be looking into, I'd really appreciate it. Right now I feel as though I'm stumbling around in the dark and I don't even know what light is.

The equipment I'm using is the 9103 Autoranging Picoammeter from rbd instruments.

[aputman]

Try this link for learning Labview.