Rockwell-automation 1761 MicroLogix 1000 Programmable Controllers Uživatelský manuál stáhnout pdf (Strana 150)

100

101

Preface

MicroLogix 1000 Programmable Controllers User Manual

9–2

Instruction

Purpose

Page

Mnemonic Name

Purpose

Page

MOV Move Moves the source value to the destination. 9–15

MVM Masked Move Moves data from a source location to a selected

portion of the destination.

9–16

AND And Performs a bitwise AND operation. 9–18

OR Or Performs a bitwise inclusive OR operation. 9–19

XOR Exclusive Or Performs a bitwise Exclusive OR operation. 9–20

NOT Not Performs a NOT operation. 9–21

NEG Negate Changes the sign of the source and stores it in the

destination.

9–22

FFL and

FFU

FIFO Load and

FIFO Unload

The FFL instruction loads a word into a FIFO stack

on successive false-to-true transitions. The FFU

unloads a word from the stack on successive false-

true transitions. The first word loaded is the first to

be unloaded.

9–25

LFL and

LFU

LIFO Load and

LIFO Unload

The LFL instruction loads a word into a LIFO stack

on successive false-to-true transitions. The LFU

unloads a word from the stack on successive false-

to-true transitions. The last word loaded is the first

to be unloaded.

9–26

About the Data Handling Instructions

Use these instructions to convert information, manipulate data in the controller

, and

perform logic operations.

In this chapter you will find a general overview preceding groups of instructions.

Before you learn about the instructions in each of these groups, we suggest that you

read the overview. This chapter contains the following overviews:

• Move and Logical Instructions Overview

• FIFO and LIFO Instructions Overview

1 2 ... 145 146 147 148 149 150 151 152 153 154 155 ... 421 422

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