Creating a control simple closed loop

Hello world

I need a little help to create a (very) simple closed loop control.

Note: I use 3 boards of Measurement Computing: a USB-2416 and two USB - TC. Measurement Computing with their own driver (called ULx), it might be a little harder to understand than the drivers NOR, but keep in mind ULx is the equivalent of DAQmx.

I need to be out in a binary value 0 or 1 based on measures of input voltage compared to the constants of 4 channels. That is to say. If the measure of tension< 3.5="" (constant),="" send="" a="" boolean="" value="" (see="" a,="" b,="" c,="" d="" in="" attached="" photo)="" which="" in="" turn="" gets="" sent="" to="" the="" ulx="" write="" vi,="" and="" that="" outputs="" the="" binary="" value="" of="" 0="" or="" 1.="" the="" problem="" i've="" run="" into="" is="" that="" i="" need="" to="" "compare"="" single="" chanels="" from="" different="" boards,="" which="" gives="" me="" single="" boolean="" values="" for="" each="" channel.="" the="" ulx="" write="" vi="" only="" accepts="" boolean="" arrays.="" is="" there="" a="" way="" (and="" there="" probably="" is,="" i="" just="" haven't="" been="" able="" to="" find="" it)="" of="" arranging="" these="" lone="" boolean="" values="" into="" a="" boolean="">

(see attachment for what I have so far)

PS. I'm a COMPLETE beginner, only used LV for a week or two, so please explain everything as if I have no idea what's going on.

Thanks in advance!

Hello

the attached example I did should demonstrate what you need to do.

A few things to think about:

1. it seems that the vis ULx return tables of signals. If so, you can select signals with the "index Board" as done in my example. Which consumes less space and does not change the type of the variant signals.

2. If we compare the signals to your constants you will receive Boolean tables because each element of the measured signal is compared to the constant (see my example). You can then decide how to deal with this info - an another Hooray for signals :-)

Concerning

Florian

Tags: NI Software

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