In my application ,i want to save some debug messages into a file.
Now , i can write message into a logger named PlcLogger,and it can display it in codesys,but i can not find the file in my root.
Do you have any examples?

Best regards

You can use the CAA_FILE library.
See the CoDeSys help for detailed information about this library and an example.

Thanks!
This is not my means.
I wanted to save messages into the loger file .The message also include the PLC system info.Like this:
00000980: Cmp=JBL_UTIL, Class=1, Error=0, Info=0, pszInfo= EVT_DenyStart received: App=Application, bDeny=0
00000980: Cmp=MIO_PLC, Class=1, Error=0, Info=0, pszInfo= EVT_DenyStart received: App=Application, bDeny=0
00000981: Cmp=JBL_UTIL, Class=1, Error=0, Info=0, pszInfo= EVT_DenyStop received: App=Application, Reason=4, bDeny=0
00000981: Cmp=MIO_PLC, Class=1, Error=0, Info=0, pszInfo= EVT_DenyStop received: App=Application, Reason=4, bDeny=0
00000981: Cmp=JBL_UTIL, Class=1, Error=0, Info=0, pszInfo= EVT_PrepareStop received: App=Application, Reason=4
00000981: Cmp=MIO_PLC, Class=1, Error=0, Info=0, pszInfo= EVT_PrepareStop received: App=Application, Reason=4
00000981: Cmp=JBL_UTIL, Class=1, Error=0, Info=0, pszInfo= EVT_StopDone received: App=Application, Reason=4
00000981: Cmp=MIO_PLC, Class=1, Error=0, Info=0, pszInfo= EVT_StopDone received: App=Application, Reason=4

Do you have any ideas?

you can configure the logging of PLC by editing COdesysSP.cfg file，the component can configure like below:
[CmpLog]
Logger.0.Name = "your file name"
Logger.0.Enable= 1
...