Subroutine Return: Ret(093); Global Subroutine Call: Gsbs(750) - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Subroutines

3-19-4 SUBROUTINE RETURN: RET(093)

Purpose
Ladder Symbol
Variations
Applicable Program Areas
Description
Precautions
Example

3-19-5 GLOBAL SUBROUTINE CALL: GSBS(750)

Purpose
Ladder Symbol
Variations
Indicates the end of a subroutine program. Used in combination with
SBN(092) to define a subroutine region.
RET(093)
Variations Executed Each Cycle for ON Condition
Immediate Refreshing Specification
Block program areas
Not allowed Not allowed
RET(093) indicates the end of a subroutine and SBN(092) indicates the
beginning of a subroutine. See 3-19-3 SUBROUTINE ENTRY: SBN(092) for
more details on the operation of subroutines.
When program execution reaches RET(093), it is automatically returned to
the next instruction after the SBS(091) or MCRO(099) instruction that called
the subroutine. When the subroutine has been called by MCRO(099), the out-
put data in A604 through A607 is written to D through D+3 before program
execution is returned.
Place the subroutine program area (SBN(092) to RET(093)) in the same task
as the SBS(091) or MCRO(099) instruction of the same number. Subroutines
in other tasks cannot be called.
When the subroutine is not being executed, the instructions are treated as
NOP(000).
See 3-19-3 SUBROUTINE ENTRY: SBN(092) for examples of the operation
of RET(093).
Calls the global subroutine with the specified subroutine number and exe-
cutes that program. The same global subroutine can be called from two or
more tasks.
This instruction is supported by CS1-H, CJ1-H, CJ1M, and CS1D CPU Units
only.
GSBS(750) is used in combination with GSBN(751) and GRET(752), the
GLOBAL SUBROUTINE ENTRY and GLOBAL SUBROUTINE RETURN
instructions.
GSBS(750)
N: Global subroutine number
N
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Step program areas Subroutines
OK
Section 3-19
RET(093)
Not supported
Interrupt tasks
OK
GSBS(750)
@GSBS(750)
Not supported
825