Manual

2-295
2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)
Subroutines Instructions
2
SBN/RET
SBN/RET
Applicable Program Areas
 SBN
 RET
Operands
 SBN
N: Subroutine number
Specifies the subroutine number between 0 and 127 decimal.
 Operand Specifications
Combined-use instructions
SBS (subroutine call) instruction
Instruction Mnemonic Variations
Function
code
Function
SUBROUTINE ENTRY SBN --- 092
Indicates the beginning of the subroutine program with
the specified subroutine number.
SUBROUTINE RETURN RET --- 093 Indicates the end of a subroutine program.
Symbol
SBN RET
Area Step program areas Subroutines Interrupt tasks
Usage Not allowed Not allowed OK
Area Step program areas Subroutines Interrupt tasks
Usage Not allowed OK OK
Operand Description
Data type
Size
SBN
N Subroutine number --- 1
Area
Word addresses Indirect DM addresses
Constants CF Pulse bits TR bits
CIO WR HR AR T C DM @DM *DM
SBN N --- --- --- --- --- --- --- --- --- OK --- --- ---
N: Subroutine number
SBN(092)
N
RET(093)