Rockwell-automation 1794 FLEX I/O System with ControlLogix for SIL2 Manuale Utente

FLEX I/O System with ControlLogix for SIL 2Catalog Number Bulletin 1794Reference Manual

Publication 1794-RM001G-EN-P - December 20111-6 SIL PolicyI/O Modules - Analog1794-IE8 8 Input Analog Module B NA 1794-IN100 1794-UM0021794-IF4

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-7Terminal Base Units1794-TB3 3-Wire Terminal Base Unit A NA 1794-IN092 NA1794-TB3S 3-W

Publication 1794-RM001G-EN-P - December 20111-8 SIL PolicyHardware Designs and Firmware FunctionsDiagnostic hardware designs and firmware funct

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-91794-OB8EP Protected Output Module2,389,669(2)4.18E-07 7.54E-061794-OE4 Analog Output

Publication 1794-RM001G-EN-P - December 20111-10 SIL PolicyTable 1.3 FLEX I/O Product Probability of Undetected Dangerous Failure per Hour (PFH

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-11Table 1.4 shows an example of a PFD calculation for a safety loop involving two DC i

Publication 1794-RM001G-EN-P - December 20111-12 SIL Policy BB1794-OB161794-IB161794-TB3 (1)1794-TB3 (2)1794-ACNR15 (1)1794-ACNR15 (2)1794-IB16

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-13SIL Compliance Distribution and WeightThe programmable controller may conservatively

Publication 1794-RM001G-EN-P - December 20111-14 SIL PolicyNotes:

1 Publication 1794-RM001G-EN-P - December 2011Chapter 2ControlLogix CommunicationsThis chapter discusses the communication modules used in a ControlLo

Important User InformationSolid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines

Publication 1794-RM001G-EN-P - December 20112-2 ControlLogix CommunicationsEtherNet/IP Cabling802.3 compliant shielded or unshielded twisted pa

Publication 1794-RM001G-EN-P - December 2011ControlLogix Communications 2-3SlotStatusBits - This is a 32 bit value. The lower 8 bits of this va

Publication 1794-RM001G-EN-P - December 20112-4 ControlLogix Communications

1 Publication 1794-RM001G-EN-P - December 2011Chapter 3FLEX I/O ModulesThis chapter discusses the FLEX I/O modules that are SIL2 certified.Overview of

Publication 1794-RM001G-EN-P - December 20113-2 FLEX I/O ModulesUsing Digital Input ModulesGeneral Considerations when using Any FLEX I/O Digit

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-3Wiring FLEX I/O Digital Input ModulesThe wiring diagrams in Figure 3.1 show two

Publication 1794-RM001G-EN-P - December 20113-4 FLEX I/O ModulesThe control, diagnostics and alarming functions must be performed in sequence.

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-5• Monitor the ControlNet status bits for the associated module and ensure that

Publication 1794-RM001G-EN-P - December 20113-6 FLEX I/O ModulesUsers can also wire a standard digital output module in series with an isolated

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-7Using Analog Input ModulesGeneral Considerations when using Any FLEX I/O Analog

1 Publication 1794-RM001G-EN-P - December 2011PrefaceIntroductionThis application manual is intended to describe the FLEX I/O with ControlLogix Contro

Publication 1794-RM001G-EN-P - December 20113-8 FLEX I/O ModulesThe input’s OK bit preconditions a Timer run that is preset to accommodate an a

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-9Wiring FLEX I/O Analog Input ModulesThe wiring diagrams in show two methods o

Publication 1794-RM001G-EN-P - December 20113-10 FLEX I/O ModulesWiring the Single-Ended Input Module in Current ModeIn addition to following t

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-11Wiring the Thermocouple Input ModuleIn addition to following the General Consi

Publication 1794-RM001G-EN-P - December 20113-12 FLEX I/O ModulesWiring the RTD Input ModuleIn addition to following the General Considerations

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-13Using Analog Output ModulesGeneral Considerations when using Any FLEX I/O Anal

Publication 1794-RM001G-EN-P - December 20113-14 FLEX I/O Modules• Wire Output Back to Input and Examination of Output Data Feedback signal: Us

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-15• When wiring two analog output modules in the same application, make sure:– B

Publication 1794-RM001G-EN-P - December 20113-16 FLEX I/O ModulesWiring FLEX I/O Analog Output ModulesIn general, good design practice dictates

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-17Wiring the Analog Output Module in Current ModeIn addition to following the Ge

Publication 1794-RM001G-EN-P - December 2011Preface 2MTBF Mean Time Between Failures Average time between failure occurrences.MTTR Mean Time to

Publication 1794-RM001G-EN-P - December 20113-18 FLEX I/O ModulesChecklist for SIL Inputs The following checklist is required for planning, pro

Publication 1794-RM001G-EN-P - December 2011FLEX I/O Modules 3-19Checklist for SIL OutputsThe following checklist is required for planning, pro

Publication 1794-RM001G-EN-P - December 20113-20 FLEX I/O ModulesNotes:

1 Publication 1794-RM001G-EN-P - December 2011Chapter 4General Requirements forApplication SoftwareRefer to publication 1756-RM001, Using ControlLogix

Publication 1794-RM001G-EN-P - December 20114-2 General Requirements for Application SoftwareNotes:

1 Publication 1794-RM001G-EN-P - December 2011Chapter 5Technical SIL2 Requirements for the Application ProgramRefer to publication 1756-RM001 for Tech

Publication 1794-RM001G-EN-P - December 20115-2 Technical SIL2 Requirements for the Application ProgramNotes:

1 Publication 1794-RM001G-EN-P - December 2011Appendix AFailure EstimatesThe following tables list the failure estimates for the FLEX I/O products inc

Publication 1794-RM001G-EN-P - December 2011A-2 Failure Estimates1794-AENTRXT 10/100Mb Ethernet Redundant Communication Adapter 1,268,070 7.89E

Publication 1794-RM001G-EN-P - December 2011Failure Estimates A-31794-IT8 Thermocouple Input Module 1,564,324 6.39E-07 2.41E-051794-OB16 16 Sou

1 Publication 1794-RM001G-EN-P - December 2011Chapter 1SIL PolicyThis chapter introduces you to the SIL policy and how the ControlLogix/FLEX I/O syste

Publication 1794-RM001G-EN-P - December 2011A-4 Failure EstimatesTable A.3 MTBF Field Data and Per Module PFD Estimates - T1 = 5 yearsCatalog N

Publication 1794-RM001G-EN-P - December 2011Failure Estimates A-51794-IB10XOB6XT 10 Input/6 Output Combo Module 22,202,487 4.50E-08 4.00E-06179

Publication 1794-RM001G-EN-P - December 2011A-6 Failure Estimates1794-OE4 Analog Output Module 23,807,086 4.20E-08 2.96E-101794-OF4I Isolated A

Publication 1794-RM001G-EN-P - December 2011Failure Estimates A-7Table A.5 MTBF Field Data and Per Module PFH Estimates - T1 = 2 yearsCatalog N

Publication 1794-RM001G-EN-P - December 2011A-8 Failure Estimates1794-IB10XOB6XT 10 Input/6 Output Combo Module 22,202,487 4.50E-08 3.19E-10179

Publication 1794-RM001G-EN-P - December 2011Failure Estimates A-91794-OB16P Protected Output Module 2,135,280 4.68E-07 4.21E-091794-OB8EP Prote

Publication 1794-RM001G-EN-P - December 2011A-10 Failure EstimatesNotes:

Publication 1794-RM001G-EN-P - December 2011IndexAAnalog input modules 3-7–3-8Analog output modules 3-13–3-15Application programTechnical SIL2 require

Publication 1794-RM001G-EN-P - December 20112 IndexWiring I/O modulesAnalog input modules 3-9–3-15Analog output modules 3-16–3-17Digital input

Publication 1794-RM001G-EN-P - December 20111-2 SIL PolicySIL2 CertificationFigure 1.1 shows a typical SIL loop, including:• the overall safety

Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400Publication 1794-RM001G-EN-P - Dec

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-3Proof TestsIEC 61508 requires the user to perform various proof tests of the equipmen

Publication 1794-RM001G-EN-P - December 20111-4 SIL Policy• Calibration of analog input and output modules to verify that accurate data is obta

Publication 1794-RM001G-EN-P - December 2011SIL Policy 1-5SIL2-Certified FLEX I/O System ComponentsTable 1.1 lists the components available for