Omron SYSMAC CP CP1E-N@@D@-@ Manual de usuario descargar pdf (Pagina 327)

2-291

2 Instructions

CP1E CPU Unit Instructions Reference Manual(W483)

Subroutines Instructions

2

SBS

Function

SBS(091) calls the subroutine with the

specified subroutine number. The subrou-

tine is the program section between

SBN(092) and RET(093). When the sub-

routine is completed, program execution

continues with the next instruction after

SBS(091).

A subroutine can be called more than

once in a program.

Subroutines can be nested up to 16 lev-

els. Nesting is when another subroutine is

called from within a subroutine program,

such as shown in the following example,

which is nested to 3 levels.

B

SBS

n

A

B

A

SBN

n

RET

END

Main program

Subroutine

program

(SBN(092) to

RET(093))

Program end

Execution condition ON

SBN 10

to

to

to

to

to

SBS 11

RET

SBN 11

SBS 12

RET

RET

SBN 12

D

SBS

n

C

D

A

SBN

n

RET

A

SBS

m

B

SBN

m

RET

END

Main program

Subroutine

program n

Execution condition ON

Execution condition ON

C

B

Subroutine

program m

Program end

Two-level

nesting

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