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signal recovery 7270 lock in

What about the llb files that are attached above?
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Message 11 of 21
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for the llb I have it but I need the deriver 

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Message 12 of 21
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Sorry, I don't know what you mean. I haven't downloaded the llb. Does it use a Call Library Function Node and a dll. If it does, you would need to contact the vendor.
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Message 13 of 21
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I mean that I have a (SIGNAL RECOVERY Model 7270 DSP Lock-in Amplifier ) made by AMETEK and I need to concted with computer (USB) for this I need labview derivers. I have the liberiry but I need deriver

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Message 14 of 21
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That still makes no sense to me. An llb IS a LabVIEW driver. If you need a Windows driver for the USB connection, that needs to come from the vendor. If your USB connection is a virtual com port, then you need to install NI-VISA.
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Message 15 of 21
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I don't knew but if you have the link to downold NI-visa send it to me. I tank that this can resulve the problem.

thank you

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Message 16 of 21
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http://www.ni.com/downloads/ni-drivers/

You should know if you have NI-VISA installed. It will be listed in MAX (Measurement and Automation Explorer). You would get a specific error if it's not installed and you have not provided any information regarding an error message. Can't resolve a problem that is so poorly explained.
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Message 17 of 21
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There is a problem with the "Initialize" driver program on Windows 10.  It seems to be originating from the "VISA Open" node, as that is where the errors begin propagating.  Has anyone found a solution to this?

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Message 18 of 21
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@pd46 wrote:

How do I get rid of VISA Error -1073807339?

 

Hi

 

This is still in continuation to the problems I am facing with the Lock In Amplifier. The codes and drivers are absolutely perfect even though they were initially designed for LV 8.2 Version.

 

Right now, I want a direct solution to this :

How do I get rid of VISA Error -1073807339?

 

When I run the SR7270 VISA Write/Read.vi , it gives this error at the VISA Read.

 

I am using USB for communication.

 

 


Hi, I recently encountered this problem. The error is a result of the VI trying to read more bits than are available at the serial port. In this case, it is trying to read the Status but is receiving Null from the 7270 Lock-in Amplifier.

 

In order to fix this, switch the Output Terminator setting on the amplifier unit from "NULL" to "STATUS".

Message 19 of 21
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Reading this thread through and it is an extremely helpful detail. I have been struggling to get COM up for a few days now to my 7270 lock-in. Changing the output did the trick.

 

THANKS!

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Message 20 of 21
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