Hello,

i was working with codesys 3.5.14.20 version to test some projects. I am using demo license of Win PLC. My project was working fine untill recentlly when suddenly Win PLC stopped working. I tried to restart it manually from system tray icon, but without any success.

As soon as i click start PLC it starts and then goes to stop mode again.

Could anyone help me with this? Feel free to drop comments for any further clarifications.

Hi,
activate the log:
c:\ProgramData\CODESYS\CODESYSControlWinV3x64\xxxxxxxx\CODESYSControl.cfg

[CmpLog]
Logger.0.Name=PlcLog
Logger.0.Filter=0xFFFFFFFF
Logger.0.Enable=1
Logger.0.MaxEntries=100000
Logger.0.MaxFileSize=500000
Logger.0.MaxFiles=3
Logger.0.Backend.0.ClassId=0x0000010B ;sends logger messages to SysOut
Logger.0.Backend.1.ClassId=0x00000104 ;writes logger messages in a file
Logger.0.Backend.2.ClassId=0x00000135 ;sends logger messages as UDP syslog
Logger.0.Type=0x314 ;Set the timestamp to RTC
Logger.1.Name=CommLog
Logger.1.Enable=1

then check this log, I expect that you see that your application crash on startup
if this is the case remove the bootapplication in:
c:\ProgramData\CODESYS\CODESYSControlWinV3x64\18061919\PlcLogic\Application.app
then it should start probably again.

Thank you very much. The problem is solved.