To connect a Power Supply over RS-232 in LabView

Have a nice day,
dear friends, I have done some basic programs before in LabView, my project is now to connect Agilent E3631A DC Power Supply serially and sending/recieving data(my aim to change input voltage from the computer without touching the hardware device).
I actually already connected the Power Supply to my computer ,I also downloaded driver of it from Agilents web site.
So the only thing is now to establish the connection in LabView.
hmmm. can you please tell me what to do now ? I have no idea if I should choose VISA or DAQ or sth else.. how can I let the LabView to send a new voltage to the hardware.
With best wishes
Message Edited by Support on 11-09-2007 08:29 AM

After installing LabView 7.0 and VISA Now I have concrete questions. Do I need some more program to install ? ( drivers I already found from ni.com )
You should have everything you need to do serial communications installed. The drivers you downloaded should help you get started with your applicaition, so I'd install them as well.
first of all I installed LabVIEW Evaluation version 7.0 , and I can`t open sources which are written with ver. 7.1 , how can i handle this problem ? ( because somebody sent me some codes which are written in 7.1 and I definetely want to see them )
You can save VIs to the previous version only. So will need to have somebody save the code to 7.0 for you.
second; should I use VISA or IVI ? whats the difference between them ?
At this point, I wouldn't worry about IVI. The drivers you downloaded are probably "IVI Drivers" but use VISA to communicate with your instrument. If you want to know a bit more about IVI in general, just do a search on ni.com for "IVI".
third; lets concider that I use VISA . From the IO Config menu, I choose COM 2 and VISA interface name is than ASRL2(automatic). And than from VISA Assistant, I choose the place of the driver of my Power Supply. Up to now everything seems to be ok. what is the next step after here ? Do i forget some configurations?
The first step is to initialize the port and instrumnet. If you look on your functions palette from the block diagram, there's a sub palette named "Instrument I/O" and a sub palette of that one named "Instrument Drivers". In this drivers palette, you should see a palette for the drivers you installed for the power supply. There should also be a sub palette in there named "Applicaiton Examples" that can help you get started. There should be one or two examples that will allow you to control the power supply, and you should be able to open the block diagram and see how it's put together.
Ed
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

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To connect a Power Supply over RS-232 in LabView

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