Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuel d'utilisateur télécharger pdf (Page 6)

Table of Contents

Alias tags ....................................................................................................................... 47

Display alias information ................................................................................. 49

Assign an alias...................................................................................................... 49

Indirect addresses ....................................................................................................... 50

Expressions........................................................................................................... 51

Array subscript out of range ............................................................................ 52

Tag documentation ................................................................................................... 53

Project documentation ..................................................................................... 53

Chapter 3

Introduction................................................................................................................ 55

Precautions .................................................................................................................. 55

Enable forces ........................................................................................................ 55

Disable or remove a force ................................................................................. 56

Check force status...................................................................................................... 56

Force status indicator ........................................................................................ 57

GSV instruction.................................................................................................. 57

When to use I/O force ............................................................................................. 58

Force an input value........................................................................................... 59

Force an output value ........................................................................................ 59

Add an I/O force........................................................................................................ 59

Remove or disable forces .......................................................................................... 60

Remove an individual force ............................................................................. 60

Disable all I/O forces......................................................................................... 61

Remove all I/O forces ....................................................................................... 61

Chapter 4

Introduction................................................................................................................ 63

External access............................................................................................................. 63

Configure external access ......................................................................................... 64

External access options...................................................................................... 64

Configure external access in the New Tag dialog box .............................. 65

Set up external access in the Tag Properties dialog box............................ 67

View and select external access status on the Tag Editor ......................... 69

Find a base tag with Go To .............................................................................. 69

External access availability ....................................................................................... 70

User-defined type considerations .......................................................................... 71

Add-on instructions external access considerations ......................................... 73

Tag mapping considerations ................................................................................... 76

Imported tag behavior .............................................................................................. 76

Force I/O

Data access control

6 Rockwell Automation Publication 1756-PM004E-EN-P - October 2014

1 2 3 4 5 6 7 8 9 10 11 ... 85 86

Pas de commentaire

Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuel d'utilisateur Page 6