COM port not detected in exe

[sabah_TASL]

In my development vi COM port are visible in the drop down, whereas when exe is created, COM ports are not visible. I have labview 2019 and installed NI VISA 19.5, NI Serial 2019 and NI VISA run time 2019. I have attached the sample project for your reference.

sabah_TASL_0-1681359621830.png 

Fig1. Labview Vi where com port are detected.

sabah_TASL_1-1681359702059.png

Fig 2. EXE where com port is not detected.

sabah_TASL_2-1681359806589.png

Fig 3. NI MAX software list

[sabah_TASL]

Can anyone help regarding this issue.

[RTSLVU]

Try something like this:

SelectComPort.png

[sabah_TASL]

Hi RTSLVU,

Your snippet is LV2023, while I am using LV2019. I have tried to replicate your VI and here are the results.

I tried your VI, in development mode COM ports are detected in array.

sabah_TASL_0-1681444181409.png

Fig1. LabVIEW VI

Whereas, when exe is created and executed the array of string is empty.

sabah_TASL_1-1681444400151.png

Fig 2. In exe mode the array is empty.

[sabah_TASL]

The problem is in first block itself, In VI I get the list of resources.

sabah_TASL_0-1681444911730.png

Fig 1. VI mode.

Whereas in exe mode the find instrument is empty.

sabah_TASL_1-1681445019422.png

Fig 2. Exe

[bharathp10]

Hi,

I tried with the following expression which was mentioned in the help, and it is working in exe as well, I'm using 2021 64 bit.
"ASRL[0-9]*::?*INSTR'

bharathp10_0-1681451387712.png

[Defaphe]

Silly question,

Is the Exe used on the same computer as the development VI?

[sabah_TASL]

Yes, exe and development vi is in same pc.

[pincpanter]

This is nearly unexplainable. What if you uncheck "Allow future versions of the LabVIEW Runtime etc..." in the program build specifications? (Just a shot in the dark).

[sabah_TASL]

I have unchecked " Allow future version..." but still facing same issue in exe.

sabah_TASL_1-1681457383634.png

sabah_TASL_2-1681457538709.png