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MAX doesn't show "Devices and Interfaces" although NI-VISA as driver is installed
mh12
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10-29-2014 09:32 AM
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I try to get a Newport Motion Controller to work over RS232 with VISA accessed by pyVISA for weeks now. But it's not possible to communicate with the device: https://github.com/hgrecco/pyvisa/issues/95
To take a more closer look I should use NI-MAX which is also not working...
I've got no "Devices and Interfaces" to select the RS232 to communicate with the device manually for testing. The most common answer "Install an NI driver" is not applying to my case because NI-VISA is installed yet.
Dennis_Knutson
Knight of NI
10-29-2014 09:41 AM
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What os and are you logged on as an admin? The latest version is 14.0.1.
http://www.ni.com/download/ni-visa-14.0.1/5023/en/
http://www.ni.com/download/ni-visa-14.0.1/5023/en/
DailyDose
Active Participant
10-29-2014 09:43 AM
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So attached is what you're looking for.
Have you installed the full NI-VISA driver?
10-29-2014 10:00 AM
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It's a lab computer with Windows 7. It's only possible to log in as user. So everything has to be run as user.
The lack of the admin rights is the reason why there is installed only version 5.4.
I installed nothing (no admin rights...). Only the VISA runtime is installed. Everything else should be included by the LabVIEW installation yet.
To install everthing existing can not be the solution.
DailyDose
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10-29-2014 11:17 AM
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I'm pretty sure you need the full. I could very easily be misguiding you, but I believe the VISA RTE only allows you to communicate on the Serial where apps/exe require. Not necessarily allow you to do it manually. This could be something worth looking into on your personal machine. Install NI Max and check to see if VISA operation came w/ it. Then install VISA RTE. Then check. If still no ability, install VISA Full. A true LabVIEW Expert is welcome to correct me on this one. But I'm pretty sure, just like any RTE, you can't do anything that could be considered debugging.
10-30-2014 03:47 AM
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Usually I only need the visa32.dll with all its dependencies. That is installed by the RTE.
The direct calls to the C routines of this Dynamic Linked Library is made by pyVISA. That's the same way I do it with GaGe's CompuScope CsAPI sucessfully (http://sourceforge.net/p/hzdr/code/HEAD/tree/THz-Shaker/device/scope/csapi.py).
The additional packages of Full should only be some development tools like "VISA driver wizard" (VISA only) or "MAX" (also included by LabVIEW - installed yet).
Is there anybody out there who knows the contents and interactions of NI's black boxes?
