Rockwell-automation Logix5000 Controllers Sequential Function Charts P Bedienungsanleitung PDF herunterladen (Seite 5)

Table of contents

Studio 5000 environment...........................................................................................9

Additional resources.................................................................................................. 10

Chapter 1

Introduction................................................................................................................ 11

What is a sequential function chart?..................................................................... 12

Define the tasks .......................................................................................................... 14

Choose how to execute the SFC ............................................................................ 15

Define the steps of the process................................................................................ 16

Step guidelines..................................................................................................... 16

SFC_STEP structure......................................................................................... 17

Organize the steps...................................................................................................... 20

Sequence ............................................................................................................... 22

Selection branch ................................................................................................. 22

Simultaneous branch ......................................................................................... 23

Wire to a previous step ..................................................................................... 24

Add actions for each step ......................................................................................... 25

How do you want to use the action? ............................................................. 25

Use a non-Boolean action ................................................................................ 25

Use a Boolean action ......................................................................................... 26

SFC_ACTION structure ................................................................................ 27

Describe each action in pseudocode...................................................................... 28

Choose a qualifier for an action ............................................................................. 29

Define the transition conditions............................................................................ 30

Transition tag ...................................................................................................... 31

How do you want to program the transition? ............................................ 31

Use a BOOL expression ................................................................................... 32

Call a subroutine in a transition ..................................................................... 32

Transition after a specified time ............................................................................ 33

Turn off a device at the end of a step .................................................................... 35

Choose a last scan option ................................................................................. 36

Use the Don’t Scan option .............................................................................. 38

Use the programmatic reset option ............................................................... 38

Use the automatic reset option....................................................................... 40

Keep something on from step-to-step .................................................................. 42

How do you want to control the device? ..................................................... 42

Use a simultaneous branch .............................................................................. 42

Store and reset an action................................................................................... 43

Use one large step ............................................................................................... 44

Preface

Design a sequential function

chart

Rock well Automati on Publication 1756-PM006F-EN-P - Oct ober 2014 5

1 2 3 4 5 6 7 8 9 10 ... 87 88

Kommentare zu diesen Handbüchern

Keine Kommentare

Rockwell-automation Logix5000 Controllers Sequential Function Charts P Bedienungsanleitung Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Ausrüstung Rockwell-automation Logix5000 Controllers Sequential Function Charts P