PLC Programming

4 - The Individual Components
Get Latest Version
Check Out
Check In
Undo Check Out
Command: 'Project' Data Base Link'Get Latest Version'
The current version of the object which is marked in the Object organizer will be copied from the data
base and will overwrite the local version. In contrast to the Check Out action the object will not be
locked for other users in the data base.
Command: 'Project' 'Data Base Link' 'Check Out'
The object which is marked in the Object organizer will be checked out from the data base and by that
will be locked for other users.
When executing the command the user will get a dialog 'Check out object'. A comment can be added
there which will be stored in the version history of the object in the data base.
After the dialog has been closed with OK the checked-out object will be marked with a green check in
the object organizer of the local project. For other users it will be appear marked with a red cross and
will not be editable by them.
Command: 'Project' 'Data Base Link' 'Check In'
The object which is marked in the Object organizer will be checked in to the data base. Thereby a new
version of the object will be created in the data base. The old versions will be kept anyway.
When executing the command the user will get a dialog 'Check in object'. There a comment can be
added which will be stored in the version history of the object in the data base.
After the dialog has been closed with OK the green check in front of the object name in the Object
organizer will be removed.
Command: 'Projekt' 'Data Base Link' 'Undo Check Out'
Use this command to cancel the Checking out of the object which is currently marked in the Object
organizer. Thereby also the modifications of the object which have been made locally, will be
canceled. No dialog will appear. The unchanged last version of the object will be kept in the data base
and it will be accessible again for other users. The red cross in front of the object name in the Object
organizer will disappear.
Show Differences
Command: 'Projekt' 'Data Base Link' 'Show Differences'
The object which is currently opened by the user in CoDeSys will be displayed in a window which is
divided up in two parts. There the local version, which is currently edited by the local user, will be
opposed to the last (actual) version which is kept in the data base. The differences of the versions will
be marked like described for the project comparison (see 'Project' 'Compare').
Show Version History
Command: 'Project' 'Data Base Link' Show Version History'
For the currently marked object in the Object organizer a dialog 'Version history of will
be opened. There all versions of the object are listed which have been checked in to the data base or
which have been labeled there:
CoDeSys V2.3 4-37