Instructions

Variables
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Used in project
The variable has a reference to a block in the program
Comment
The text displayed in a tooltip in the workspace, when the mouse
is over the variable
5.2 Data type
The variables of the following types can be used in a program:
 Boolean (BOOL)
 Integer (INT)
 Real (REAL)
Note: Different devices can have restrictions related to support of certain types of varia-
bles.
1. BOOL
A variable of this type has only two possible values: 1 (True) or 0 (False).
The connecting lines between the BOOL variables in the circuit program are displayed in
gray.
Fig. 5.2 BOOL connections
2. INT
A variable of this type is unsigned integer in the range 0…4,294,967,295 (4 Byte).
The connecting lines between the INT variables in the circuit program are displayed in
red.
Fig. 5.3 INT connections
3. REAL
A variable of this type has a value in the range -3.402823e+38…3.402823e+38. It is rep-
resented by a floating-point number of single-precision (4 Byte).
The connecting lines between the REAL variables in the circuit program are displayed in
violet.
Fig. 5.4 REAL connections
5.3 Standard variables
These are common variables used for data exchange between blocks of the circuit pro-
gram, inputs, outputs and display forms.
Standard variables are listed in the variable table under the tab Standard.