Allen-Bradley 1756-L61S

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GuardLogix Controller Systems

Catalog Numbers 1756-L61S, 1756-L62S, 1756-L63S, 1768-L43S,1768-L45S, RSLogix 5000 Version 20 and earlier

Safety Reference Manual

Original Instructions

Main Page

Default Chapter3
- Table of Contents3
Preface7
- Summary of Changes7
- Understanding Terminology7
- Additional Resources8
- SIL 3 Certification11
Chapter 112
- Functional Verification Tests12
- Guardlogix Architecture for SIL 3 Applications13
- Guardlogix System Components14
- Guardlogix Certifications16
- Guardlogix PFD and PFH Specifications16
- Safety Integrity Level (SIL) Compliance Distribution and Weight17
- System Reaction Time18
  - Safety Task Reaction Time18
  - Safety Task Period and Safety Task Watchdog19
- Contact Information if Device Failure Occurs19
- 1756 Guardlogix Controller Hardware21
Chapter 222
- Primary Controller22
- Safety Partner22
- Chassis22
- Power Supplies22
- 1768 Compact Guardlogix Controller Hardware23
- CIP Safety Protocol23
- Safety I/O23
- Communication Bridges24
- Programming Overview26
- Overview27
Chapter 3 Typical Safety Functions of CIP Safety I/O Modules27
- Diagnostics28
- Status Data28
- Status Indicators28
- On- or Off-Delay Function28
- Reaction Time28
- Safety Considerations for CIP Safety I/O Modules29
- Routable CIP Safety Control System33
Chapter 434
- Unique Node Reference34
- Safety Network Number34
- Considerations for Assigning the Safety Network Number (SNN)35
- Differentiate between Standard and Safety37
Chapter 5 SIL 2 Safety Applications38
- SIL 2 Safety Control in the Safety Task38
- Safety Task, and Safety Programs SIL 2 Safety Applications38
- SIL 2 Safety Control in Standard Tasks41
- Only)41
- SIL 3 Safety-The Safety Task41
  - Safety Task Limitations41
  - Safety Task Execution Details43
- Use of Human-To-Machine Interfaces44
  - Precautions44
  - Accessing Safety-Related Systems45
- Safety Programs46
- Safety Routines46
- Safety Tags47
  - Standard Tags in Safety Routines (Tag Mapping)48
- Additional Resources49
- Safety Concept Assumptions51
Chapter 652
- Basics of Application Development and Testing52
- Commissioning Life Cycle53
- Downloading the Safety Application Program59
- Uploading the Safety Application Program59
- Online Editing59
- Storing and Loading a Project from Nonvolatile Memory60
- Force Data60
- Inhibit a Module60
- Editing Your Safety Application61
Chapter 7 Monitoring System Status65
- CONNECTION_STATUS Data65
- Input and Output Diagnostics66
- I/O Module Connection Status66
- De-Energize to Trip System67
- Get System Value (GSV) and Set System Value (SSV) Instructions67
- Guardlogix System Faults68
Monitor Status and Handle Faults65
Appendix A71
- Safety Application Instructions71
- Metal Form Safety Application Instructions72
- Safety Instructions73
- Additional Resources74
Safety Instructions71
Appendix B Creating and Using a Safety Add-On Instruction75
- Create Add-On Instruction Test Project77
- Create a Safety Add-On Instruction77
- Generate Instruction Signature77
- Download and Generate Safety Instruction Signature78
- SIL 3 Add-On Instruction Qualification Test78
- Confirm the Project78
- Safety Validate Add-On Instructions78
- Create Signature History Entry79
- Export and Import the Safety Add-On Instruction79
- Verify Safety Add-On Instruction Signatures79
- Test the Application Program79
- Project Verification Test80
- Safety Validate Project80
- Additional Resources80
Safety Add-On Instructions75
Appendix C81
- System Reaction Time81
- Logix System Reaction Time81
  - Simple Input-Logic-Output Chain82
  - Logic Chain Using Produced/Consumed Safety Tags83
- Factors Affecting Logix Reaction-Time Components84
- Additional Resources88
- Checklist for Guardlogix Controller System89
Appendix D91
- Checklist for Safety Inputs91
- Checklist for Safety Outputs92
- Checklist for Developing a Safety Application Program93
- PFD Values95
Appendix E PFH Values96
- De-Energize to Trip System97
Appendix F Use Connection Status Data to Initiate a Fault Programmatically97
- And Later, Safety Application98
- And Later, Safety Application99
- And Later, Safety Application100
- And Later, Safety Application101
- And Later, Safety Application102
- SIL 2 Dual-Channel Inputs103
Appendix G103
- Controllers)103
- 1756 SIL 2 Inputs and Outputs with103
- SIL 2 Outputs Using SIL 3 Guard I/O Output Modules105
- SIL 2 Outputs Using 1756 or 1794 SIL 2 Output Modules105
- Safety Functions Within the 1756 Guardlogix Safety Task106
Glossary107
- Rockwell Automation Publication 1756-RM093J-EN-P - April107

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Allen-Bradley 1756-L61S Specifications

General

Brand	Allen-Bradley
Model	1756-L61S
Category	Controller
Language	English

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