Lenze DDS v2.3 - Manual (Page 138)

Drive PLC Developer Studio
Editors
7-16
l
DDS EN 2.3
7.2.14 Short mode
The declaration editor provides the possibility to use the short form mode.
•
The short form mode is activated by completing a line with <Ctrl>+<Enter>.
The following short forms are supported:
•
All identifiers except the last one in a line become variable identifiers in the declaration.
•
The declaration type is determined by the last identifier in the line, where:
B or BOOL is BOOL
I or INT is INT
R or REAL is REAL
S or STRING is STRING
•
If these rules did not help to define a type, the type will be BOOL and the last identifier is not
used as a type (
).
•
Each constant becomes an initialization or a string length depending on the declaration type
(
‚, ƒ).
•
An address (as in %MD12) is extended by the AT attribute ( „).
•
A text behind a semicolon (;) becomes a comment (
ƒ).
•
All other characters in the line are ignored (such as the exclamation mark in in , for
example).
Examples:
Short form Declaration
 A
A: BOOL ;
‚ A B I 2
A, B: INT := 2;
ƒ ST S 2; String
ST: STRING (2); (* String *)
„ X %MD12 R 5; Number
X AT %MD12: REAL := 5.0; (* Number *)
B!
B: BOOL ;
7.2.15 Auto declaration
If the option Auto declaration in the dialog box Option, category Editor is activated, the following
dialog box will appear in all editors on entry of a not-yet-declared variable.
•
Use combination box Class to select the variable class.
•
Enter the variable name in text field Name (the input field is pre-assigned with the variable
name entered in the editor).
•
Enter the variable type in text field Type (the input field is pre-assigned with type BOOL).
•
Use the button ... to call the Help Manager for a selection of all available types.
•
Use text field Initial value to assign a value to the variable, otherwise the standard initial
value will be used.
•
Use check boxes CONSTANT (constant) and RETAIN (battery support) to define whether the
quantity is a constant or a retentive Retain variable.
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