Problem with File Access library

CODESYS
1

My project stopped working after I ported it from eCockpit to Codesys. It’s using File Access library to open files from Linux system. For some reason that stopped working, I always get FILE_OPERATION_DENIED error when trying to open a file. Any solution for that? (I’m using PFC200 with FW28)

2

Hello this is not because of the port but because the newest FW setting are by default locked to where you can read/write with codesys file libraries.
Where is the file you want to edit / read ?

3

/etc/plcgw.d/plcgw.conf

4

Edit this file:
/etc/codesys3.d/RtsCore.cfg
and in the zone:

[SysFile]
FilePath=/home/codesys
FilePath.1=/usr/share/codesys3, 3S.dat
PlcLogicPrefix=1
PlaceholderFilePath.1=/tmp, $tmp$
PlaceholderFilePath.2=/media, $media$

Add :
FilePath.n=/etc/plcgw.d/plcgw.conf
Where n is the next number for the Filepath.
After a reboot you should be able to access this file in codesys