Sys Process Execute Command

2023-11-17T11:28:42.694000Z

Hello,

I have a question:
Once the command is being executed, is there a way to kill it again?
As the called application is running in the background, the user can't close it but it shall be closed/terminated, commanded by codesys.

I have tried with "SysProcessTerminate" but I guess this is not correct as the RTE crashes when this function is called.

Starting the application:

IF GVL.xStrtQR THEN
    GVL.xStrtQR := FALSE;
    SysProcess.SysProcessExecuteCommand2(pszCommand:=sCmd, pszStdOut:=stdout, udiStdOutLen:= SIZEOF(stdout),pResult := ADR(GVL.pResQRTsk));
END_IF

Trying to stop it again:

IF GVL.xTrmQR THEN
    GVL.xTrmQR := FALSE;

    pResTerm := SysProcess.SysProcessTerminate(hProcess:=SysProcess.SysProcessGetCurrentHandle(pResult:=ADR(GVL.pResQRTsk)));
END_IF

Codesyscontrol Win x64, 3.5.19.10.

Many thanks for any advice pointing to the correct direction.. :-)

Regards,
Fabian

Sys Process Execute Command

2021-04-09T08:53:10.369000Z

Hi! Having hard times with SysProcessExecuteCommand.
Running on Raspberry, runtime 4.0.1.0

CODESYSControl_User.cfg

[SysProcess]
Command=AllowAll
Command.0=shutdown
;Command.1=sudo

Executing any command returns zero. If add double quotes it returns 25 as a result and doing noting.

Sys Process Execute Command

2020-04-02T14:41:44.110000Z

Thank you very much, your advice works fine!

Sys Process Execute Command

2020-04-02T13:52:12.186000Z

Hi,
we had a similar problem to execute VLC player, for us the solution was:
sudo -u pi DISPLAY=:0 vlc /home/pi/Videos/CODESYS.mp4

Sys Process Execute Command

2020-04-02T12:47:28.540000Z

Hi,
my PLC is Elsist SlimLine Raspberry Pi 3b+ with Codesys runtime V3.5.15.40

As first step I need to create a barcode with zint and this test code work fine:

As second step I need to show the generated barcode on the HDMI display and I try with this code:

But doesn't work and then I try with other image viewer like Mirage, pqiv, ImageMagick but no success.
So I put this code (DISPLAY=:0 gpicview /home/pi/out.png) into a small shell script and I launch it from Codesys but it doesn't work.
Then I try to launch the shell script via ssh from Codesys but no success.

Sys Process Execute Command

2020-04-02T05:21:42.499000Z

which plc and which version?

Sys Process Execute Command

2020-04-01T13:15:34.701000Z

Same problem here...

Sys Process Execute Command

2020-02-27T14:16:51.923000Z

Do we have a solution for that until now?

Sys Process Execute Command

2020-02-27T14:16:51.532000Z

Hi i have exactly the same problem with Linux Runtime and RPI Runtime.
Only the "no graphic" command work.

I tried to run with "su -l user -c 'app' command but it doesn't work too.

Does Someone know a solution for that ?

Thank you

Sys Process Execute Command

2020-02-27T14:16:51.147000Z

Hi Edwin.
I use the last one so : 3.5.12.20

I tried to move the setting

[SysProcess]
Command=AllowAll

from /etc/CODESYSControl.cfg to /etc/CODESYSControl_User.cfg.
but same result.

it seems that the runtime process does not have the rights to execute graphical applicaton

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