Multi function synch AI-AO
Hello all,
I would like to synch the Analog input and two separate Analog outputs (Ao0,Ao1) of a NI-6040.
I first used the multi function synch AI-AO vi from the examples and added a second AO as picture 1 indicates, without synchronizing and it worked fine.
But I also want to synch the second AO (Ao1) with the acquisition. I tried this as pic 2 states but it always indicates "error: 50103 the specified resource is reserved"
Does anyone know how to do this??
Thanks,
Adao Monteiro
Solved!
Go to Solution.
Attachments:
1.jpg 72 KB
2.jpg 87 KB
Hello Adao,
Actually, you will find an explanation in the following document : Simultaneous Analog Output Tasks on the Same Device.
The solution to use only one task is the only solution.
This is due to the fact the all Analog outputs use a single clock, so-called AO Sample Clock. It is not possible to create different clocks for the outputs of a single card.
Regards,
Olivier L. | Certified LabVIEW Developer
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Bonjour,
Ce post est en rapport étroit avec ce dernier :
NI Discussion Forums : La communauté française : Discussion de produits NI : Le terminal source à co...
Où on m'avait suggéré un exemple montrant une sychronisation de deux tâches d'acquisisitions (1 analogique + 1 numérique) Multi-Function-Synch AI-Read Dig Chan.vi J'ai donc reproduit cet exemple en transformant les tâches d'acquisitions en tâches d'écritures... Et là, surprise, cela ne marche qu'à moitié : seule la voie analoqique sort un signal.
Je vous joins une copie d'écran de mon diagramme, en espérant que vous pourrez me dire ce qui peut bien m'échapper.
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Effectivement, merci de me l'avoir signalé, mais il ne s'agit que d'une faute de recopie... En ayant correctement défini deux tâches de sortie (numérique et analogique), seule la sortie analogique fonctionne. Je précise que je dispose d'une carte ni USB-6259. Dans mes recherches je suis tombé sur ce post qui explicite un point des caractéristique de cette carte :
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Qu'en pensez-vous ? Est-ce pour cela que j'ai tant de mal à faire avec le numérique ce que je fais très facilement avec l'analogique ? Est-ce pour cela aussi que je ne peux pas candencer une horloge d'échantillonnage avec OnBoardClock pour source ?
M. Passiak cite ensuite les 621x et 623x : Est-ce que j'aurais rencontré les mêmes ennuis avec l'une de ces cartes ?
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Dear friends:
I found an example to use the Multi-Function Synch. AI-AO to use with my PCI-6036E. This vi explain how can I use the interrupt and DMA.
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Actually, you will find an explanation in the following document : Simultaneous Analog Output Tasks on the Same Device.
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Message Edited by mcf57 on 11-30-2009 09:12 AM
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