1. Building Technologies Standard Protocols Update January 2011 Building Automation Integration & Standard Protocols

2. Building Technologies Standard Protocols Update January 2011 Topics Systems integration why and how? Protocol inner workings BAS migration Modbus pros and cons LonTalk pros and cons BACnet pros and cons Questions Fascinating!!

3. Building Technologies Standard Protocols Update January 2011 Fire/Life Safety Security & Access Other BAS Operator Workstations Power & Energy Elevators Air Compressors Hotel Systems Lighting HVAC VFD Fuel Tanks Critical Environments Industrial System Integration

4. Building Technologies Standard Protocols Update January 2011 Protocols within building subsystems… BACnet LonTalk Modbus OPC Proprietary Modbus LonTalk BACnet EIB Proprietary Modbus Profibus OPC Proprietary BACnet LonTalk Modbus Proprietary BACnet Proprietary BACnet Modbus LonTalk Proprietary Graphics, Internet Schedules Reports & Alarms Text & E-mail HVACHVAC FIREFIRE ACCESSACCESS LIGHTINGLIGHTING POWERPOWER SCADASCADA BASBAS

5. Building Technologies Standard Protocols Update January 2011 BACnet/IP System Architecture BACnet MS/TP, LonTalk, ModbusProprietary Protocols, Modbus HVACHVAC LIGHTINGLIGHTING BASBAS FIREFIRE ACCESSACCESS POWERPOWER BASBAS

6. Building Technologies Standard Protocols Update January 2011 BASBAS BACnet/IP Ethernet Legacy BAS Migration Proprietary Protocol to BACnet/IP Functions to Expect Translatio n BASBAS  Monitor and Command  Alarm  Trend  Schedule Proprietary Protocol A Proprietary Protocol B

7. Building Technologies Standard Protocols Update January 2011 BASBAS BACnet/IP Ethernet Legacy BAS Migration Proprietary Protocol to BACnet/IP Migration Changes Tools Translatio n BASBAS  Programming  Database  Commissioning Tools  Schedules Proprietary Protocol A Proprietary Protocol B

8. Building Technologies Standard Protocols Update January 2011 BASBAS BACnet/IP Ethernet Legacy BAS Migration Proprietary Protocol to BACnet/IP Benefits Translatio n BASBAS  Single Programming Language  Single Database  Consistent Commissioning Tools  Consistent Schedules Proprietary Protocol A Proprietary Protocol B

9. Building Technologies Standard Protocols Update January 2011 Top Benefits of Sharing and Aggregating Information ●Lower energy costs ●Lower maintenance costs ●Improved staff utilization ●Lower repair and replacement costs/extend equipment life ●Increase occupant comfort/tenant productivity ●Improve system performance ●Generate business decision support information ●Enterprise wide data consolidation

10. Building Technologies Standard Protocols Update January 2011 Protocol Inner Workings A protocol is a set of rules defining the format of data transmission between two or more devices. The protocol defines: Data format and composition Addressing Error checking Data compression Send/receive message notification For communications to work effectively between two or more devices, the rules covering the required functionality must be interpreted and implemented exactly the same way The OSI Model explains the basics

11. Building Technologies Standard Protocols Update January 2011 Developed by Modicon (Schneider Electric) Considered a defacto-standard Register based protocol Digital data Analog data Master/Slave or Client/Server based architecture Several types of Modbus: Modbus RTU Modbus ASCII Modbus Plus Modbus TCP Integration Using Modbus Modbus - Overview Modbus Driver EBLN MLN RS-485 Modbus TCP Modbus RTU

12. Building Technologies Standard Protocols Update January 2011 Simple data protocol means simple development Extensive implementation in many building systems: Process controls Power meters Power and Lighting control Chillers Boilers BAS Leverage existing driver development and integration expertise Integration Using Modbus Modbus - Pros Modbus Driver EBLN MLN RS-485 Modbus TCP Modbus RTU

13. Building Technologies Standard Protocols Update January 2011 Integration Using Modbus Modbus - Challenges Simple protocol means functionality limited No high level application standardization No time stamping Information limited to simple register data implemented by vendor Vendors may not implement the standard consistently Mapping is project specific Modbus Driver EBLN MLN RS-485 Modbus TCP Modbus RTU

14. Building Technologies Standard Protocols Update January 2011 Integration Using LonTalk LonTalk – Overview LonWorks Technology is from Echelon Corp. LonWorks is a suite of products LonMaker Integration Tool LNS network operating system iLon IP router and Internet Server LonTalk protocol Neuron Chip LonTalk Devices LonTalk Devices Network Manager

15. Building Technologies Standard Protocols Update January 2011 Integration Using LonTalk LonTalk – Pros LonTalk is the standard protocol ANSI/EIA/CEA 709.1 A 1999 LonTalk is an effective device level protocol standard Product selection impressive HVAC and BAS devices Lighting control LonMark controllers adhering to LonMark profiles are cost effective and standard Neuron chip provides unique address out of factory LonTalk Devices LonTalk Devices Network Manager

16. Building Technologies Standard Protocols Update January 2011 Integration Using LonTalk LonTalk – Challenges LonTalk standard does not define important applications Scheduling, Trending, Alarming, Programming, etc. LonMark profiles provide few mandatory network variables, leading to many variances in vendor implementations LonMark programmable controllers do not conform to LonMark profiles LonTalk Devices LonTalk Devices Network Manager

17. Building Technologies Standard Protocols Update January 2011 Integration Using LonTalk LonTalk – Challenges Device vendors create non- standard implementations proprietary network variables proprietary start-up and commissioning tools Little acceptance in certain systems Fire, Security, Power, PLCs LonTalk Devices LonTalk Devices Network Manager

18. Building Technologies Standard Protocols Update January 2011 Integration Using LonTalk LonTalk – Challenges LonTalk Standard does not define system level components Network Operating Systems Network Management Software products Web server products Database is site/job and vendor specific Hardware, licensing fees, and royalties are high LonTalk Devices LonTalk Devices Network Manager

19. Building Technologies Standard Protocols Update January 2011 ASHRAE 135-2004 and 2008 Standard Communications media (MS/TP, ARCnet, Ethernet, IP, PTP, LonTalk) PICS (Protocol Implementation and Conformance Statement) and BIBBS (BACnet Interoperability Building Blocks) from vendors BTL (BACnet Testing Lab) certification process BACnet - Overview Integration using BACnet Ethernet RS485 Other BACnet Controller BACnet/IP BACnet MS/TP

20. Building Technologies Standard Protocols Update January 2011 Available from most BAS and HVAC equipment vendors Cost effective integration solution Standard provides insulation from vendor system migrations and upgrades Standard allows for flexibility in implementation Protocol implementation disclosure documents (PICS and BIBBs) Testing procedure and certification (BTL) BACnet - Pros Integration using BACnet Ethernet RS485 Other BACnet Controller BACnet/IP BACnet MS/TP

21. Building Technologies Standard Protocols Update January 2011 Network security Encryption mechanism in review Standard in review for user authentication and access rights Programming language Every system will have a unique programming language Unique programming tools are required for each vendor BACnet - Challenges Integration using BACnet Ethernet RS485 Other BACnet Controller BACnet/IP BACnet MS/TP

22. Building Technologies Standard Protocols Update January 2011 Configuration tools are proprietary No device application profiles System and device control algorithms are unique to vendors Database structure not standardized Methods of implementing functionality vary from vendor to vendor Private transfer services Proprietary objects BACnet - Challenges Integration using BACnet Ethernet RS485 Other BACnet Controller BACnet/IP BACnet MS/TP

23. Building Technologies Standard Protocols Update January 2011 Steps to Successful Integration Document functional requirements Assess and assign integration responsibilities Assess the capabilities against expectations and requirements LonTalk Variables Modbus Register List BIBBS (BACnet Interoperability Building Blocks) BACnet Object List Communication between departments Facilities IT Purchasing Communicate and coordinate vendor responsibilities for integration implementation and commissioning

24. Building Technologies Standard Protocols Update January 2011 Questions