Allen-Bradley Rockwell Automation 1734-AENT Manual de usuario descargar pdf (Pagina 6)

6 Publication 1756-RM093F-EN-P - January 2010

Table of Contents

Safety Considerations for CIP Safety I/O Modules. . . . . . . . . 31

Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Safety I/O Configuration Signature . . . . . . . . . . . . . . . . . 31

I/O Module Replacement . . . . . . . . . . . . . . . . . . . . . . . . 32

Chapter 4

CIP Safety and the Safety Network

Number

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

The Routable CIP Safety Control System. . . . . . . . . . . . . . . . 35

Unique Node Reference . . . . . . . . . . . . . . . . . . . . . . . . . 36

Safety Network Number . . . . . . . . . . . . . . . . . . . . . . . . . 36

Considerations for Assigning the Safety Network

Number (SNN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Safety Network Number (SNN) for Safety Consumed

Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Safety Network Number (SNN) for Out-of-box Modules. . 38

Safety Network Number (SNN) for Safety Module with a

Different Configuration Owner . . . . . . . . . . . . . . . . . . . . 38

Safety Network Number (SNN) when Copying a Safety

Project. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chapter 5

Characteristics of Safety Tags, the

Safety Task, and Safety Programs

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Differentiate Between Standard and Safety . . . . . . . . . . . . . . 41

SIL 2 Safety Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

SIL 2 Safety Control in the Safety Task . . . . . . . . . . . . . . 42

SIL 2 Safety Control in Standard Tasks

(1756 GuardLogix Controllers Only) . . . . . . . . . . . . . . . . 45

EN50156 Compliance With 1756 ControlLogix

SIL 2 Safety Inputs in Dual-channel Configurations

with 1756 GuardLogix Controllers. . . . . . . . . . . . . . . . . . 45

SIL3 Safety – the Safety Task . . . . . . . . . . . . . . . . . . . . . . . . 47

Safety Task Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . 48

Safety Task Execution Details . . . . . . . . . . . . . . . . . . . . . 48

Safety Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Safety Routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Safety Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Standard Tags in Safety Routines (Tag Mapping) . . . . . . . 51

Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Chapter 6

Safety Application Development

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Safety Concept Assumptions . . . . . . . . . . . . . . . . . . . . . . . . 53

Basics of Application Development and Testing . . . . . . . . . . 53

Commissioning Life Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Specification of the Control Function . . . . . . . . . . . . . . . 55

1 2 3 4 5 6 7 8 9 10 11 ... 113 114

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