Building Automation System Integration with Open Protocols Front Matter

Page 1


Section 1.

Building Automation

Chapter One

Building Automation Interoperability _________________________ 2

Chapter Two

Control Concepts ________________________________________________ 26

Chapter Three

Data Communication ____________________________________________ 50

Section 2.

Building Automation Communication • Automated Building Systems

Control Strategies • Control Logic • Supervisory Control • Building System Management

Data Communication • Open System Interconnection (OSI) Model • Network Architecture • Media Types • Common Building Automation MAC Layers

LonWorks Systems

Chapter Four

LonWorks System Overview ___________________________________ 84

Chapter Five

LonWorks Network Architecture and Infrastructure________ 100

Chapter Six

LonWorks Nodes ________________________________________________118

Chapter Seven

LonWorks Network Programming_____________________________ 138

Chapter Eight

LonWorks Network Testing ___________________________________ 162

Chapter Nine

LonWorks Network Maintenance _____________________________ 178

Section 3. Chapter Ten

LonWorks Development • LonWorks Technology

LonWorks Network Architectures • LonWorks Network Infrastructure • Infrastructure Planning

LonMark Certification • LonWorks Node Hardware Components • LonWorks Node Software Components • LonWorks Node Types

LonWorks Network Programming • Network Variable Bindings • Device Commissioning

Testing and Verifying the Network • Optimizing Network Performance

Network Maintenance Tasks • Network Documentation

BACnet Systems BACnet System Overview _____________________________________ 190 BACnet Systems • Information Architecture • System Architecture • Testing and Certification


Chapter Eleven

BACnet Transports and Internetworking ____________________ 216

Chapter Twelve

BACnet Basic Objects and Core Services ___________________ 246

Chapter Thirteen

BACnet Alarming, Scheduling, and Trending ________________270

Chapter Fourteen

BACnet Special Applications _________________________________ 290

Chapter Fifteen

BACnet Installation, Configuration, and Troubleshooting __________________________________________ 304

Typical BACnet Physical Architecture • BACnet LAN Types • MS/TP Nodes and Token Passing • BACnet Network Layer • BACnet Over IP Infrastructures

BACnet Objects • Basic Objects • Special Function Objects • Object Access Services • Remote Device Management Services

Change-of-Value Notification • Alarming • Scheduling • Trending

Special Application Objects and Services

Network Tools • Installation • Configuration • Troubleshooting

Section 4.

Building System Integration

Chapter Sixteen

System Integration ____________________________________________328

Chapter Seventeen

Cross-Protocol Integration __________________________________ 346

Chapter Eighteen

Future Trends in Building Automation _______________________362

Building Automation System Example • Control Scenario: Opening the Building on a Regularly Scheduled Workday • Control Scenario: Demand Limiting

Cross-Protocol Integration • Cross-Protocol Implementations

Industry Trends • Networking Trends • Open Protocol Trends • Control Strategy Trends • Automating Existing Buildings

Appendix ________________________________________________________379 Glossary ________________________________________________________ 391 Index ____________________________________________________________399

CD-ROM Contents Using the CD-ROM • Quick Quizzes® • Illustrated Glossary • Flash Cards • Media Clips • ATPeResources.com


Chapter introductions provide an overview of chapter content

Chapter objectives list learning goals for the chapter

Conceptual illustrations show relationships between systems and devices

Photographs depict common industry hardware

Tables list significant technical specifications


Network diagrams illustrate the flow of control information

Charts show how automation actions affect control information Summaries highlight key concepts of the chapter

Key terms are listed at the end of the chapter

Review questions test for chapter comprehension


Advanced building automation technologies include a decision-making ability within the individual control devices, which are linked by a common data communication network. These devices are known as smart or intelligent devices. All networks require a communication protocol that governs the electronic signals passed between devices to ensure that they are all speaking the same understandable language. If the structure of the protocol language is available to all manufacturers so that they can produce and market compatible control devices, then it is known as an open protocol. Building Automation: System Integration with Open Protocols, the second book in a two-book series on building automation. The first book, Building Automation: Control Devices and Applications, addresses the basic functions of building systems and how devices are used to monitor and control these systems. This second book introduces the concepts of intelligent devices, automated control, and network communication utilizing open protocols. The two primary protocols for wired networks, LonWorks and BACnet, are described in detail, including information about their communication methods, information architecture, configuration, operation, and troubleshooting. Building Automation: System Integration with Open Protocols provides a foundation of control concepts and network data communication in the first three chapters. After the LonWorks and BACnet sections, the final three chapters offer capstone coverage of previous chapter concepts and their relationships. The System Integration chapter includes a series of applications that illustrate the design, installation, and configuration of each protocol in various scenarios. Applications highlight the implementation differences between the protocols in different situations. The Cross-Protocol Integration chapter discusses strategies for incorporating multiple protocols together into a building automation system. The final chapter discusses the future of building automation, such as greater capabilities in system control and new technologies in network communication and protocol languages. The Publisher


Mr. David Fisher is President of PolarSoft Inc., a Pittsburgh-based software company that specializes in BACnet software development and consulting. He was a charter voting member of ASHRAE’s SPC 135P and has been very active in the development and authoring of the BACnet® standard since its inception. Mr. Fisher has over 35 years of experience in real-time software, human-interface design, and distributed direct digital control systems, and holds several patents for laboratory control systems and fiber-optic communications. Mr. Fisher attended Carnegie Mellon University, where he studied computer science and artificial intelligence. Mr. Greg Powell is the Chief Technology Officer and CEO of Enerlon, a building services contractor in Los Angeles. Enerlon provides mechanical/electrical and network integration services for commercial, institutional, and industrial clients. Mr. Powell also delivers LonWorks training for building automation technicians and end users. Prior to Enerlon, Mr. Powell worked as senior network integration trainer for Echelon Corporation. He has trained over a thousand network integrators in the use of Echelon network tools and LonWorks control technology. Mr. Powell has a California teaching credential, is a certified LonMark professional, and holds contractor license classifications in HVAC, refrigeration, electrical, and general categories. Mr. Jeremy J. Roberts is the Technical Director of LonMark International, a not-for-profit trade organization devoted to supporting the LonWorks networking platform. He has been working with LonWorks technology since 1993 and has headed the LonMark technical staff since 1998. He also provides LonWorks education through seminars, training, speaking engagements, and industry publications. Quarterly he authors the technical column in the LonMark magazine. Mr. Roberts holds an MBA degree in global management from the University of Phoenix and a BS degree in computer technology from Central Michigan University. Mr. Chuck Sloup is a licensed mechanical engineer. During his career, he has worked as an application engineer for a controls contractor and a design engineer for a large engineering consulting firm specializing in hospitals, data centers, wet labs, cleanrooms, and pharmaceutical manufacturing facilities. He also owns a startup company focusing on advanced applications in controls optimization. He was president of the Nebraska Chapter of ASHRAE and was a participant in a committee that edited ASHRAE 90.1, a standard regarding energy use in buildings. Mr. Sloup holds a BS degree from the University of Nebraska. NJATC staff contributors: Jim Simpson Assistant Director of Curriculum Development Technical Editor Marty Riesberg Director of Curriculum Development Technical Editor


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