GE PACSystems RX7i

Chapter 8. Structured Text (ST) Programming
376 PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual GFK-2950C
Examples
The following code fragment assigns a value to the variable ColorVariable.
CASE ColorSelection OF
0: ColorVariable:= Red;
1: ColorVariable:= Yellow;
2,3,4: ColorVariable:= Green;
5..9: ColorVariable:= Blue;
ELSE ColorVariable:= Violet;
END_CASE;
The following code fragment uses a nested CASE…OF…END_CASE construct.
CASE ColorSelection OF
0: ColorVariable:= Red;
1: ColorVariable:= Yellow;
2,3,4: ColorVariable:= Green;
5..9: ColorVariable:= Blue;
ELSE
CASE ColorSelection OF
10: ColorVariable:= Violet;
ELSE ColorVariable:= Black;
END_CASE;
ColorError: 1;
END_CASE;