PLC Programming

Managing Objects in a Project...
On the tab Access rights you find the same dialog as you get when executing the command 'Project'
'Object Access Rights'
It depends on the object and the project settings, whether there are additional tabs available where
you can define object properties:
• If a global variable list is currently selected in the Object Organizer, then a tab 'Global variable
list' will be available where the parameters concerning the actualization of the list and concerning
the data exchange of network variables are defined. The entries can be modified here. This dialog
also will be opened if you create a new global variable list by selecting one of the entries in section
'Global Variables' in the Object Organizer and executing the command 'Add Object'.
• If a visualization object is currently selected in the Object Organizer and if the option 'Web
visualization' resp. 'Target visualization' is activated in the Target Settings, then a tab
'Visualization' will be available, where you can choose, whether the object should be part of the
Web visualization resp. Target visualization.
• If the project is connected to an ENI data base (see 'Project' 'Options' 'Project source control'), then
a tab 'Database -connection' will be available. Here you can display and modify the current
assignment of the object to one of the data base categories resp. to the category 'Local'. See for
further information: 'What is ENI'.
'Project' 'Add Action'
This command is used to generate an action allocated to a selected block in the Object Organizer.
One selects the name of the action in the dialog which appears and also the language in which the
action should be implemented.
The new action is placed under your block in the Object Organiser. A plus sign appears in front of the
block. A simple mouse click on the plus sign causes the action objects to appear and a minus sign
appears in front of the block. Renewed clicking on the minus sign causes the actions to disappear and
the plus sign appears again. This can also be achieved over the context menu commands 'Expand
Node' and 'Collapse Node'.
'Project' 'View Instance'
With this command it is possible to open and display the instance of the function block which is
selected in the Object Organizer. In the same manner, a double click on the function block in the
Object Organizer gives access to a selection dialog in which the instances of the function block as
well as the implementation are listed. Select here the desired instance or the implementation and
confirm using OK. The desired item is then displayed in a window.
Attention: If you want to view instances, you first have to log in ! (The project has been compiled with no errors
and downloaded to the PLC with 'Online' 'Login').
Dialog for opening an instance
4-46 CoDeSys V2.3