PLC Programming

6 - The Resources
Dialog Default PDO mapping
The Properties of the PDO can be defined in a dialog which is also used for the PDO configuration of
other CAN modules.
By using button Delete the PDO currently marked in the right window will be removed from the
configuration.
6.5.9 PLC Configuration in Online Mode
In online mode the PLC configuration displays the stati of the inputs and outputs of the PLC. If a
boolean input or output has the value TRUE, the little box at the beginning of the entry line in the
configuration tree will get blue, non-boolean values will be added at the end of the entry line (e.g.
"=12").
The boolean inputs can be toggled by mouseclicks. At other inputs a mouseclick on the beginning of
the line opens a dialog, where the value can be modified. The modified value will be set in the PLC as
soon as the dialog is closed with OK.
6.6 Target Settings
The "Target Settings" is an object of the 'Resources'. Here you define, which target shall be used for
the project and how it will be configured. If a new project is started with 'Project' 'New', a dialog will
open where the target, that means a predefined configuration for a target, has to be set.
The list of available targets depends on which Target Support Packages (TSP) are installed on the
computer. These describe platform specific basic configurations and also define, to which extent the
configuration can be modified by the user in the CoDeSys Target settings dialogs.
Please regard: If no TSP is available, only the setting 'None' will be offered in the target system selection box.
This will switch to simulation mode automatically and no configuration settings will be possible.
CoDeSys V2.3 6-33