Instruction Manual

240 Language Reference • Reference

Publication 1398-PM601A-EN-P — October 2000

WORDS

Example

01 = ON

02 = OFF

O3 = F1

04 = ON, T = 0.1 ;turn on output 4 for 100 mS

05 = OFF, T = 3.2 ;turn off output 5 for 3.2 S

ON variable

JUMP

Case Statement Program Structure

Purpose Jump to one of a list of labels based on the value of variable. The variable acts as a

pointer into the list of labels. Labels are zero-based, so if variable = 0, the program

jumps to the first label. If variable = 3, it jumps to the fourth label and so on. If the

value of variable is greater or equal to the number of labels in the list, execution falls

through to the next instruction after the ON variable JUMP instruction.

Syntax ON Va ri able JUMP label1, label2, label3, ..., labeln

variable The variable may be a nonvolatile variable Gn, a volatile variable

Vn, or a system variable.

labeln labeln is any valid label in the program. n = 1, 2, ...

Remarks This instruction is similar to the case instruction in many other programming lan-

guages.