Fieldbus Installations in a DeltaV Distributed Control System

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About this manual
This manual provides an overview of the fieldbus technology and presents a simplified approach to installing and using a fieldbus system with the DeltaV software. For complete information on the fieldbus protocol, refer to the Fieldbus Foundation. This manual documents fieldbus applications and installations that use Third Party Products. The reader should understand that this indicates only that the product has been tested for interoperability with the DeltaV system. EMERSON PROCESS MANAGEMENT PROVIDES NO WARRANTY OF DESIGN, MATERIAL, WORKMANSHIP, PERFORMANCE, FITNESS, MERCHANTABILITY OR OTHERWISE IN CONNECTION WITH SUCH PRODUCTS. Warranties for Third Party Products may be obtained only from the applicable manufacturer.
目錄
Welcome ....................................................................................................................... v
Chapter 1 Overview ....................................................................................................................... 1
Overview to fieldbus technology ............................................................................................................. 1
The Link Master and the Link Active Scheduler ........................................................................................2
DeltaV H1 cards .......................................................................................................................................3
Hardware components in a fieldbus system ............................................................................................ 3
H1 card operation in the DeltaV system .................................................................................................. 3
Fieldbus power supplies .......................................................................................................................... 4
Terminators ............................................................................................................................................ 5
Wiring components ................................................................................................................................ 5
Topologies .............................................................................................................................................. 5
Recommended fieldbus cable ................................................................................................................. 7
Fieldbus type A cable specifications .........................................................................................................7
Recommended fieldbus cable lengths .....................................................................................................7
Geographic distribution of fieldbus devices .............................................................................................8
Designing a fieldbus control strategy ...................................................................................................... 8
Types of field devices ...............................................................................................................................8
Chapter 2 Installing a fieldbus system ............................................................................................ 9
Important information about installation ................................................................................................ 9
Grounding and shielding cable ................................................................................................................ 9
Assumptions about the fieldbus applications described in this book ........................................................9
Tools required for the installation ..........................................................................................................10
Basic steps for installing a fieldbus segment .......................................................................................... 10
Chapter 3 High availability fieldbus applications .......................................................................... 15
High availability applications - overview ................................................................................................ 15
Redundant H1 with Integrated Power card provides redundant fieldbus power .....................................15
Example high availability application with the H1 with Integrated Power card ....................................... 16
DC power considerations for high availability applications that use the H1 with Integrated Power
card .......................................................................................................................................................17
Maximum distances per load on the H1 with Integrated Power card ......................................................17
Using Megablocks to provide short circuit protection ............................................................................18
Designing an application that uses Megablocks for short circuit protection ...........................................18
Install and connect Megablocks .............................................................................................................19
Chapter 4 Intrinsically safe fieldbus applications .......................................................................... 21
Intrinsically safe applications - overview ................................................................................................ 21
Example Intrinsically Safe application with the Field Barrier ................................................................... 21
DC power considerations for Intrinsically Safe applications ....................................................................22
Maximum distances per load with Field Barriers .................................................................................... 23
Field Barrier for Intrinsically Safe applications in hazardous areas ...........................................................24
Install and connect a Pepperl+Fuchs Field Barrier ...................................................................................25
Chapter 5 Non-Incendive fieldbus applications .............................................................................27
Non-Incendive fieldbus applications - overview ..................................................................................... 27
Non-Incendive application example ...................................................................................................... 27
DC Power considerations for Non-Incendive applications ...................................................................... 28
Contents
iDistance per load on the Fieldbus Power Hub with segment protection ................................................ 29
Power for Non-Incendive applications ................................................................................................... 30
Using Segment Protectors to provide short circuit protection ............................................................... 31
Install the Fieldbus Power Hub components .......................................................................................... 32
Connect the Fieldbus Power Hub ...........................................................................................................33
Install and connect the Fieldbus Segment Protector ..............................................................................34
Appendices and reference
Appendix A Fieldbus segment checkout procedure ......................................................................... 37
Using the segment checkout procedure to verify the installation .......................................................... 37
Before performing the segment checkout procedure ............................................................................37
Tools required to check out a segment ..................................................................................................38
Segment checkout procedure ............................................................................................................... 39
Sample waveforms ................................................................................................................................41
Fieldbus segment checkout form .......................................................................................................... 43
Appendix B MTL power supplies for Intrinsically safe applications ...................................................45
MTL power supplies for Intrinsically Safe fieldbus applications ...............................................................45
Example IS application with the MTL9122 ............................................................................................. 46
DC power considerations for IS applications using the MTL power supplies ........................................... 47
Maximum distances per load on the MTL9121 IS power supply ............................................................. 47
Maximum distances per load on the MTL9122 IS power supply ............................................................. 48
Installing the MTL Intrinsically Safe power supplies ................................................................................49
Connect the MTL IS power supplies to the safe area ...............................................................................50
Connect the MTL IS power supplies to the hazardous area .....................................................................51
Host and power switches on the MTL IS power supplies .........................................................................51
Appendix C MTL power supplies for Non Incendive applications ......................................................53
MTL power supplies for Non-Incendive fieldbus applications ................................................................. 53
Example application with one MTL9112 NI power supply ...................................................................... 54
Example application with two MTL9111 NI power supplies ....................................................................55
DC power considerations for Non-Incendive power applications ........................................................... 56
Maximum distances per load on the MTL9111 NI power supply .............................................................57
Maximum distances per load on the MTL9112 NI power supply .............................................................57
Installing the MTL Non-Incendive power supplies .................................................................................. 58
Connect the MTL NI power supplies to the safe area .............................................................................. 59
Connect the MTL NI power supplies to the hazardous area .................................................................... 61
Host and power switches on the MTL NI power supplies ........................................................................ 62
Appendix D Troubleshooting .......................................................................................................... 63
Troubleshooting overview .....................................................................................................................63
Using the LEDs to troubleshoot ............................................................................................................. 63
Troubleshooting with the DeltaV Explorer .............................................................................................66
Troubleshooting with DeltaV Diagnostics ............................................................................................. 66
Troubleshooting device or segment errors ............................................................................................ 69
Troubleshooting communication between the H1 card and the DeltaV system .....................................70
Troubleshooting other communication errors .......................................................................................70
Troubleshooting device commissioning problems ................................................................................ 71
Troubleshooting missing values in resource or transducer blocks ..........................................................71
Troubleshooting simulation in Control Studio ....................................................................................... 72
iiAppendix E Recommended third party products .............................................................................73
Recommended sources for fieldbus components ..................................................................................73
Appendix F Fieldbus references ...................................................................................................... 75
References ............................................................................................................................................ 75
Index ................................................................................................................................................. 77

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