can you join two hameg dmm's to one labview vi?

[Dennis_Knutson]

Let's see what you've done.

[1231]

this is really getting on my tits at this stage! here is my latest attempt.......damn these wireless motes.

i tried the write measurement block and your excel one, and neither exported/saved any data. but it seems to work ok.

im looking forward to seeing this mean data.......

[Dennis_Knutson]

Okay, now I see what you've done. You've got a constant wire to the while loop termination terminal so the only way you can stop your while loop is by clicking the little "Stop" button on the toolbar, correct? That aborts the whole VI and is not the correct method. Replace the constant with a front panel Boolean control and all will be fine. The "Stop" button should never be used as the normal means to stop a VI.

[1231]

i tried putting a boolean switch in the front panel, but no use! of course....

how do you do this exactly.?

all the best

[Dennis_Knutson]

Delete the constant and the wire going to the conditional terminal (the little square box in the lower right corner of the while loop). Right click on the conditional terminal and select Create Control. That's it. You can go to the front panel and move it around if you want but that won't affect the functionality. The front panel control you just created will also have the correct mechanical action.

I just did this with constants replacing the VISA Reads and I got data out of the while loop.

[johnsold]

Just convert the false boolean to a control. Here is your VI with a Stop button and a few other clean ups. You might also want to change the default value on one of the VISA resource name controls so both do not attempt to access the samem port.

Lynn

[1231]

ok, got it going now. but when i gather dather outside the loop., the time interval changed. it goes up in seconds...... is this 'real time' sampling?

before it was going up like 2.3seconds, 4.2 seconds.........etc.......

i need to know if this is actual sampling times.....