Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 547)

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DMS 4.1 EN 03/2011 TD29 545
Enable system call: Background: In contrast to »PLC Designer«V2.3 now the ADR-
Operator can be used with function names, program names, function block names and
method names, thus replacing the INSTANCE_OF operator. See in this context
'Function pointers'. BUT there is no possibility to call a function pointer within»PLC
Designer«! In order to enable a system call (runtime system) you must activate the
current option for the function object.
Link Always: The object is marked for the compiler so that it is always included into the
compile information. As a result, objects will always be compiled and downloaded to
the PLC. This option goes relevant, when the object is located below an application or
is referenced using libraries inserted below an application. The selectable variables for
the symbol configuration use the compile information as basis too.
Compiler defines: Here you can enter "defines" (see {define} instruction) and
conditions for the compilation of this object. The expression expr used in those
pragmas can be entered here, several entries can be entered in a comma-separated
list.
For example it might be useful to make dependent the compilation of an application
on the value of a certain variable. (See an example In the following figure: "hallo" is
defined and if variable test has value "2" the application will be compiled.)
Abb. 294 Properties dialog, Category Build