79
4-2-7
Creating an Array
Create array variable
All_Data[n]
.
1.
Double-click
Program0 - Section0
and then click the
Variables
Bar at the top of the Edit
Pane to display the variable table.
2.
Click the
Internals
Tab to create internal variables.
Use an array specification for a data type.
Enter “All_Data” into the
Name
Column and then enter “Array” into the
Data type
Column.
The data type name candidate
ARRAY[?..?] OF ?
appears.
3.
Enter “0” for the left question mark and “9” for the right question mark in the [?..?] section.
Next, enter “INT” for the question mark in the OF ? section. Array variables
All_Data[0]
to
All_Data[9]
with the INT data type are registered.
Like with Data Memory Area of a traditional PLC (e.g., CJ2), values of variables can be
retained when power is turned OFF. Selecting the
Retain
Check Box.
All_Data[0]
All_Data[1]
All_Data[2]
All_Data[3]
All_Data[n]
