Rockwell Automation 1746-BAS BASIC LANGUAGE - Manual (Page 95)

Publication 1746-RM001A-US-P
Control Functions 7-11
ON-GOTO Purpose
Use the ON-GOTO statement to transfer control to the line(s) specified by the
GOTO statement when the value of the expression following the ON statement is
encountered in the BASIC program.
Syntax
ON [expr] GOTO [ln num]
Example
>1 REM EXAMPLE PROGRAM
>10 ON Q GOTO 100,200,300
Control is transferred to line 100 if Q is equal to 0 and then to line 200 if Q is
equal to 1. If Q is equal to 2, control is transferred to line number 300, and so on.
All comments that apply to GOTO apply to the ON statement. If Q is less than
zero, an
ERROR: BAD ARGUMENT
message is generated and the BASIC module
enters Command mode. If Q is greater than the line number list following the
GOTO statement, an
ERROR: BAD SYNTAX message is generated. The
ON-GOTO statement provides conditional branching options within the module
program.