Writing parameters to an exe file using labview

[domcorrado]

hello, i have an .exe file which i run by writing paraemeters in cmd, now i want to build a vi that allows me to write the parameters (which are strings, numeric and an enum) into the exe file and reads the output. How can i do that?

[GerdW]

Hi corrado,

---

@domcorrado wrote:

hello, i have an .exe file which i run by writing paraemeters in cmd, now i want to build a vi that allows me to write the parameters (which are strings, numeric and an enum) into the exe file and reads the output.

---

Use the SysExec function…

[RTSLVU]

---

@domcorrado wrote:

hello, i have an .exe file which i run by writing paraemeters in cmd, now i want to build a vi that allows me to write the parameters (which are strings, numeric and an enum) into the exe file and reads the output. How can i do that?

---

Well you basically build your command line string and use the System Exec vi to launch it

Here's picture of a program that builds a command line for Iperf, also pipes Iperf output to the program mtee if desired

Then I save the command line to Temp.bat and use the System Exec to run the batch file.

[domcorrado]

Hello, im using the system exec block to write a cmd line to an .exe but it wont work.

Im specifying the path of the exe file in the command line )using cmd /c C:\ etc.) input and writing my line in the standard output input, but every time i try to run the program it gives me a standard error saying

[11904] Failed to execute script 'prova' due to unhandled exception!
Traceback (most recent call last):
File "prova.py", line 239, in <module>
AttributeError: 'NoneType' object has no attribute 'count'

anyone can help me understand whats wrong?

[GerdW]

Hi corrado,

---

@domcorrado wrote:

Hello, im using the system exec block to write a cmd line to an .exe but it wont work.

Im specifying the path of the exe file in the command line )using cmd /c C:\ etc.) input and writing my line in the standard output input, but every time i try to run the program it gives me a standard error saying

[11904] Failed to execute script 'prova' due to unhandled exception!
Traceback (most recent call last):
File "prova.py", line 239, in <module>
AttributeError: 'NoneType' object has no attribute 'count'

anyone can help me understand whats wrong?

---

"*.py" typically is not an executable…

Mind to share a minimal example code to demonstrate what you are doing?

[MaSta]

The Python script is most likely not the one to execute. The executable is supposed to run the script.

@domcorrado: The executable is putting out that error. It has nothing to do with LV, as it seems. Regarding your inital question: executing the software is easy, but reading console output isn't. You could redirect outputs in the console to a file and read that into LV.  https://www.windowscentral.com/how-save-command-output-file-using-command-prompt-or-powershell