VI_ERROR_RSRC_NFOUND error after Signal Studio Installation

[EmreCetin86]

Hello

We have 14 test tables in a measurement LAB and every table has a PC running LABVIEW and also GPIB ENET/1000 for GPIB devices. I install Agilent VSA software and also Agilent IO Libraries. Agilent VISA is installed as secondary VISA. There was no problem before installing Agilent Signal Studio Softwares. During the installation, installation manager says that it has to stop NI Configuration Manager, NI Device Loader, NI PXI Resource Manager and NI Variable Engine Services to continue the installation. I made it OK and after installation I restart the computer to get the NI Systems working again and check them in Control Panel > Administrative Tools > Services. They are working too. But after the installation when I opened NI MAX I got "No VISA resources found" error at Devices and Interfaces section. NI VISA can not detect COM1 port now. PCs that I do not install Signal Studio can detect COM1 via NI MAX. At the attachments there is screenshot showing the error.

So the problem becomes after Signal Studio Installation. I try to restart NI services, install new 5.4 version NI-MAX (we are using 5.3 version now) but these did not solve the problem. NI VISA 5.1 is present now in PCs. How can I fix this problem?

Thanks.

Emre Cetin

Istanbul Technical University

[Wan-L]

Hello,

From the screenshot, it seems like the Signal Studio installer modified files those NI services were using. Maybe, after the modification, those NI services no longer run properly, even if they are running. 
It is also possible that your device just wasn't detected.

1. Confirm that Windows Device Manager can detect your devices.

2. Do a repair of the NI VISA driver from Windows Programs and Features.

Please let me know how it goes.

[EmreCetin86]

Hello Wan

Thanks for your reply. Repairing NI VISA has solved the problem. It seems that Signal Studio installation has spoiled NI VISA as you stated and Agilent VISA becomes primary after that. As a result VISA confict occurs. I uninstall Agilent IO Libraries, repair NI-VISA and then install Agilent VISA as secondary. With that way both NI-MAX and Agilent IO Libraries can detect COM1, GPIB, LAN instruments and there is no error now.

Many thank for your help.

Emre Cetin

Istanbul Technical University