ControlLogix SIL2 System Configuration Using SIL2 Add-On ...

1 Application Technique(Catalog Numbers 1756 and 1492) ControlLogix sil2 System ConfigurationUsing sil2 Add-On InstructionsImportant User InformationSolid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication available from your local rockwell automation sales office or online at ) describes some important differences between solid state equipment and hard-wired electromechanical devices.

2 Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is no event will rockwell automation , Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, rockwell automation , Inc.

3 Cannot assume responsibility or liability for actual use based on the examples and patent liability is assumed by rockwell automation , Inc. with respect to use of information, circuits, equipment, or software described in this of the contents of this manual, in whole or in part, without written permission of rockwell automation , Inc., is this manual, when necessary, we use notes to make you aware of safety , ControlLogix , Logix5000, RSLogix 5000, RSNetWorx for ControlNet, rockwell automation , and TechConnect are trademarks of rockwell automation , not belonging to rockwell automation are property of their respective information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage.

4 Or economic information that is critical for successful application and understanding of the information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequenceSHOCK HAZARDL abels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be HAZARDL abels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous 1756-AT012A-EN-P - November 20083 Table of ContentsPrefaceAbout This Publication.

5 9 Who Should Use This Publication .. 9 Conventions .. 9 About SIL .. 9 Additional Resources.. 10 Chapter 1 Fault-tolerant System ConfigurationAbout This Chapter .. 11 Fault Tolerance and the ControlLogix System .. 11 ControlLogix System sil2 Configurations .. 11 About Fault-tolerant Systems .. 12 Fault-tolerant Compared to Other sil2 Configurations .. 12 Fault-tolerant System Configuration .. 14 Remote I/O Configuration .. 14 The Complete ControlLogix Fault-tolerant System .. 18 Additional Resources.. 19 Chapter 2 Fault-tolerant System HardwareAbout This Chapter.

6 21 Approved I/O Modules and Termination Boards .. 21 About the Specialized Termination Boards .. 221756-IB32 DC Input Termination Board Features .. 22 Normal Operation of 1756-IB32 DC Input Termination Board .. 231756-IB32 DC Input Termination Board and Transition Tests .. 241756-IF16 Analog Input Termination Board .. 26 Normal Operation of the 1756-IF16 Analog Input Termination Board .. 27 One-sensor or Two-sensor Wiring Option.. 291756-IF16 Module Pair Reference Tests .. 301756-OB16D Diagnostic Output Termination Board Features 33 Normal Operation of the 1756-OB16D Diagnostic Output Termination Board.

7 34 Diagnostic Tests and the 1756-OB16D Output Termination Board .. 35 Termination Board Relay Control .. 361756-IB32 Input Termination Board Relay Control.. 361756-IF16 Analog Input-Termination Board Switch Control .. 371756-OB16D Output Termination Board Relay Control .. 38 Input Module Diagnostic Test Control .. 40 Hardware and Programming .. 40 Additional Resources.. 414 Publication 1756-AT012A-EN-P - November 2008 Table of ContentsChapter 3 Fault-tolerant Program ElementsAbout This Chapter .. 43 Overview of the Program Elements.

8 43 Main Routine .. 43 sil2 Add-On Instructions .. 44 Diagnostic Features of Add-On Instruction Programming . 45 States of the System .. 46 Normal State .. 46 Test State.. 461oo1 State .. 47 Faulted State .. 48IB32_SIL2_Pair Instruction .. 49 Normal Operation - 1756-IB32 Module Pair.. 49 Test - 1756-IB32 Module Pair .. 501oo1 - 1756-IB32 Module Pair .. 50IF16_SIL2_Pair Instruction .. 51 Normal Operation - 1756-IF16 Module Pair .. 51 Test - 1756-IF16 Module Pair .. 521oo1 - 1756-IF16 Module Pair.. 52IF16_RefCal Instruction.

9 53OB16D_SIL2 Instruction .. 54 Normal Operation - 1756-OB16D .. 541oo1 - 1756-OB16D .. 55 The Fault-tolerant Program .. 55 Additional Resources.. 56 Publication 1756-AT012A-EN-P - November 20085 Table of ContentsChapter 4 Configuring the Fault-tolerant SystemAbout This Chapter .. 57 Before You Begin .. 57 Obtain Fault-tolerant sil2 Add-On Instructions .. 57 Configure Your Redundant Controller Chassis .. 58 Configuring Remote I/O Chassis .. 58 Add the Remote I/O Chassis to the I/O Configuration Tree .. 58 About Module-defined Tags.

10 64 Adding Required Controller Tags .. 65 About Controller Tags for the 1756-OB16D Module Pair . 65 About Controller Tags for the 1756-IF16 Module Pair.. 65 Add Controller Tags .. 66 Import Add-On Instructions.. 67 Using Add-On Instructions .. 681756-OB16D Module Pair Instruction Configuration .. 68 Add the OB16D sil2 Instruction and Edit Parameters .. 69 Edit OB16D sil2 Add-On Instruction Tags .. 731756-IB32 Module Pair Instruction Configuration .. 76 Add the IB32 sil2 Instruction and Edit Parameters .. 76 Edit IB32 sil2 Add-On Instruction Tags.