Omron SYSMAC CJ - REFERENCE MANUAL 08-2008

816
Subroutines Section 3-19
Example 3: Nested Subroutines
When CIO 000000 is ON in the following example, subroutine 1 is executed.
If CIO 000001 is ON, subroutine 2 is executed from within subroutine 1 and
program execution returns to the next instruction after SBS(091) 2 when sub-
routine 2 is completed. Execution of subroutine 1 continues and program exe-
cution returns to the next instruction after SBS(091) 1 when subroutine 1 is
completed.
1
3
5
2
4
A→S1→B→S2→C
A→S1→B→C
A→B→S2→C
A→B→C
CIO 000000 ON
CIO 000001 ON
Subroutines
Pro
g
ram end
Main program
Order of execution