Series of commands by visa

Hi all.
I am trying to control a Corvus microscope stage controller and have had luck in sending individual commands to do what ever I want the controller to do. I want the controller however, to move the stage in a scanning motion and to perform this I have to send multiple commands in the proper order. I have set up my VI a couple of different ways and have got the same results. The run starts out fine but then the controller must not be able to keep up with the commands from the computer as the stage acts erratically and stops. The most commands that function properly in a row are 4. With the x movement command repeated 10 times in a "for loop" and then a y move followed by a x move in the -x direction repeated 10 times then another y movement. This needs to continue so I can cover as much area as possible. This is just an initial scan vi as I what to get it to function first before a complicate the movement later.
At first I thought I should buffer the data or add wait periods. I don't really understand buffers but I added the wait periods in the same frame and in different frames as the Visa write.vi and these execute as expected but do not solve the problem. I will attach the vi so you can see my set up. If more information is needed say the word. I am newer to Labview 7 but I think my set up will work as soon as this bug is worked out.
Solved!
Go to Solution.
Attachments:
compressed scan control2.vi ‏255 KB

never mind I figured it out or at least I figured out how to get it to work within my limits. If you are interested in the vi it is below.
Attachments:
compressed scan control2.vi ‏273 KB

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Go to Solution.

Thanks, Broken. I am getting a time out error. Clearing the buffers doesn't seem to be making a difference. This is baffling to me. I must be missing something fundamental.
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Jared,
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Bonjour,
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basic DC loop 6221 Keithley.vi ‏145 KB

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Message Edited by sarahk on 04-09-2006 12:36 PM
Message Edited by sarahk on 04-09-2006 12:36 PM
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Bonjour,
Je suis étudiant en énergétique 4e année et je réalise dans le cadre d'un stage une méthode de mesure de débit à travers une porte à l'aide de capteurs à fil chaud et de deux autres types de capteurs.
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J'ai essayé d'être le plus claire possible, néanmoins n'hésitez pas à demander des explications
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Attachments:
VitesseTemperatureRTDDirection2- essais10bon_optimize_avecsigne050510.vi ‏155 KB
erreurprogramme.jpg ‏164 KB

Pourquoi vous employez le "Read" dans la premiere commande de VISA, et "Init-Fetc" dans le prochain VISA? Essai utilisant le "Read" tout pars tout. Si ceci ne fixe pas le probleme, changez du "XON-XOFF" au aucun handshaking. Temps au temps, les "binary bits" (je ne savez pas les mots en Francais) resemble XOFF. J'espere que ceci vous aide.
- tbob
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Series of commands by visa

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