Basic Characteristics RAPID

Basic Characteristics RAPID Data
Figure 4 Example: The following data can be called from routine e:
Module1: Data c, d.
Module2: Data a, f, g, e1.
The following data can be called from routine h:
Module1: Data d.
Module2: Data a, f, g, h1, c.
Routine data may not have the same name as other data or a label in the same routine.
5.2 Variable declaration
Module1 Module2
Local Data a
Local Data b
Data c
Data d
Data e
A variable is introduced by a variable declaration.
Example: VAR num x;
Variables of any type can be given an array (of degree 1, 2 or 3) format by adding
dimensional information to the declaration. A dimension is an integer value greater
than 0.
Example: VAR pos pallet{14, 18};
Variables with value types may be initialised (given an initial value). The expression
used to initialise a program variable must be constant. Note that the value of an uninitialized
variable may be used, but it is undefined, i.e. set to zero.
Example: VAR string author_name := "John Smith";
VAR pos start := [100, 100, 50];
VAR num maxno{10} := [1, 2, 3, 9, 8, 7, 6, 5, 4, 3];
The initialisation value is set when:
Local Data a
Local Data f
Data g
Local Routine e
Data e1
Routine h
Data h1
Data c
- the program is opened,
- the program is executed from the beginning of the program.
RAPID Reference Manual 5-21