then the loops end early when there is a table of cluster for several xyplot

Hi all

I want to order a motor (for the rotation stage), a Keithley 2450 and SR830, changing the level of step by step while measuring the VAC and Vdc continuously with changing Idc. Half size loop partially shown in the picture below is to change the degree by the stepper motor. The structure of sequence and two small inner loops is to measure the Vac-Idc-Vdc.

What I want to do is to show the plot xy in real time during the measurement and show the multiple xyplots for different degrees (a line unique xy for a degree). So I add the disabled part and the problem comes.

When I turn off the game and everything works fine. All Vac and Idc values measured with the vice-president Vdc range (such as-10 V ~ 10V). But when I activate the part, the two loops stops at halfway.

I wire errorout writing on an emloie file the register shift for errorin the out more while loop, which does not work.

I'm confused totoally. Can someone help me?

Thank you.

Zhu

I see a major problem.  It is a classic example of all of the data being processed in the loop of consumption due to the lines of OR.

If you have a loop, adding data to a queue.  You have a second loop by deleting the data.  The producer loop completes and destroys the queue.  This causes the loop of consumer to raise an error due to the line being destroyed and stop.  But what happens to all of the data still in the queue when it is destroyed?  Answer: it's GONE.  It will not be processed.

Since you want that each piece of data, you can send an order any to the loop of consumer to let him know he turned and then allow it to stop.  Only after stop the loop of the consumer the queue must be destroyed.

So should what command you use?  In this situation, I would send an empty array when the loop of producer ceased.  The consumer checks only data read to see if it is an empty array.  If this is the case, she stops the loop and destroys the queue.

Tags: NI Software

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