Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario descargar pdf (Pagina 181)

Quick Reference Section

Appendix A

A12

Table A.I

Jump/Subroutine

Instructions

Key Symbol Instruction Name

1770-T3

Display

Explanation and Rung Conditions

SBR

T. END

Subroutine Area SUBROUTINE

AREA

Establishes the boundary between main program and

subroutine area. Subroutine area is not scanned unless

directed to do so by a JSR instruction.

-(LBL)- Label XX

-(LBL)-

This condition instruction is the target destination for JMP and

JSR instructions.

-(JMP)- Jump XX

-(JMP)-

XX - two digit octal identificatio nmber, 00-07.

-( JSR )- Jump To Subroutine XX

-( JSR )-

When rung is true, processor jumps to referenced label in

subroutine area.

Same as LBL with which it is used.

-(RET)- Return -(RET)- No identification number. Can be used unconditionally.

Returns the processor to the instruction immediately following

the JSR in the main program that initiated the jump to

subroutine.

1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 214 215

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Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario Pagina 181