Instrument driver showing as "?" in palette.

[Beginer_enthusiast]

I'm trying to control a TDK lambda power supply using LabVIEW. I have downloaded the instrument drivers provided by the manufacturer (not through LabVIEW, I copied the driver's folder into the instr.lib folder). My instrument shows up in the list of connected devices too. However, the vis in the palette for this particular instrument is showing up as "?". No vi is opening.

I'm able to go to find instrument driver --> TDK-Lambda (installed drivers) --> open examples --> open one of the listed examples works without any issues. When I open one of the VI.s, they automatically open from downloads folder rather than instr.lib folder. I'm also able to communicate with and control the equipment using the examples (that is, my Sub-VIs, like initialize or start, etc. are working).

I don't know how to resolve this. Any help is appreciated!

An Enthusiastic Beginner.

[santo_13 · Accepted solution]

'?' in the palette means LV could not find the VI at the location specified in the palette file.

[Beginer_enthusiast]

Santosh,

Thank you for answering my question. The problem that I'm encountering is definitely due to the issue you've mentioned.

The solution with the problem was name of the folder where I've copied my drivers to. The folder had to be called something different (LabVIEW shows it as a warning, I missed it somehow).

Thanks,

Srikar