Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 865

Subroutines
Applicable Program Areas
Operands
Operand Specifications
Description
826
Block program areas
OK
N: Global subroutine number
Specifies the global subroutine number between 0 and 1023 decimal.
Note For CJ1M-CPU11 and CJ1M-CPU21 CPU Units, the subroutine number must
be between the range 0 to 255 decimal.
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
Note For CJ1M-CPU11 and CJ1M-CPU21 CPU Units, the range is 0 to 255 deci-
mal.
GSBS(750) calls the global subroutine with the specified global subroutine
number. The global subroutine is the program section between GSBN(751)
and GRET(752). When the global subroutine is completed, program execution
continues with the next instruction after GSBS(750).
This instruction can be written into multiple tasks with the same global subrou-
tine number to call that program from the different tasks. The program can be
modularized by making global subroutines into standard subroutines that are
common to many tasks.
The global subroutine region (between GSBN(751) and GRET(752)) must be
defined in interrupt task 0. If it is defined in another task, an error will occur
and the Error Flag will be turned ON when the GSBS(750) instruction is exe-
cuted.
The GSBS(750) instruction can be written in both cyclic tasks (including extra
cyclic tasks) and interrupt tasks.
Step program areas Subroutines
OK OK
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0 to 1023 (decimal) (See note.)
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Section 3-19
Interrupt tasks
OK
N