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FIRE BACnet: An Overview. FIRE Why BACnet? FIRE Integrated Network Systems General Overview m Campus Network Today General Overview m Campus Network.

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Presentation on theme: "FIRE BACnet: An Overview. FIRE Why BACnet? FIRE Integrated Network Systems General Overview m Campus Network Today General Overview m Campus Network."— Presentation transcript:

1 FIRE BACnet: An Overview

2 FIRE Why BACnet?

3 FIRE Integrated Network Systems General Overview m Campus Network Today General Overview m Campus Network Today Campus LAN Campus Police AC Shop Engineering Physical Plant Building Management Supplier Software Bldg. 1 Access Control Gateways Fire Alarm Security Building Management Supplier

4 FIRE Open Network Topology General Overview m Future Campus Network General Overview m Future Campus Network Campus LAN Campus Police AC Shop Engineering Physical Plant Bldg. 1 HVAC Lighting Security Access Fire Alarm

5 FIRE Economical Reasons Different manufacturers; Single system head-end, multi-access; Well defined system responsibilities; Reduced manpower; Training; Use of existing network infrastructure.

6 FIRE Technical Reasons Sensor reuse Heat; Lighting. Smoke Control System Equipment (UUKL) data passing. Coordination of all control systems Alarm resolution; Report generation; Multi-sensor correlation. Flexible system design.

7 FIRE Integrated Network Systems FIRE Panel Securit y Panel FIRE Panel Control Panel FIRE Panel Control Panel Vertical Lift Panel Control Panel Lighting Panel Control Panel HVAC Panel UUKL Panel UUKL Panel Control Panel HVAC Panel FIRE Panel LAN

8 FIRE Desired View - Global Access Single Building Level Campus Level World Level Campus Network World Net

9 FIRE Fire Control Stays Local 4100 FCP 4020 4002 MAPNET 4120 Network 4020 4100 Control Campus Control WAN 4020

10 FIRE Background Typical applications: HVAC controls; Lighting controls; Security (access control); Fire detection systems; Fire suppression systems; Elevators; Other control equipment and systems. Future is virtually limitless.

11 FIRE Bacnet Application Concepts Facilitate the use of digital control technology. Defined data protocols; Application services. Abstract object oriented information: Input & output values (Binary, Analog, Multi-stage); Text string values; Schedule information; Alarm & event information; Files; Control logic. Object -- access to information without knowing details.

12 FIRE Building Automation Control BACnet Applications Layer Presentation Layer Session Layer Transport layer Network Layer data link layer 7 6 5 4 3 2 1 Physical Layer BACnet is a loosely coupled protocol allowing for greater flexibility in the data link layer -- though well defined in the network and application layer for information interoperability BACnet Layers BACnet Application Layer BACnet Network Layer ISO 8802-2 (IEEE 802.2) Type 1 ISO 8802-3 (IEEE 802.3) ARCNET EIA-485EIA-232 MS/TPPTP OSI Basic Reference Model

13 FIRE BACnet Application Protocol Data Representation Objects. Application Services Ways to access the data. Network Services Methods to have access to devices on the network.

14 FIRE Binary Input Object PROPERTY BACnet EXAMPLE Object_Identifier Required (Binary Input, Instance 1) Object_Name Required "MAPNET point M1-35" Object_Type Required BINARY_INPUT Present_Value Required ACTIVE Description OptionalFirst Floor ZAM" Device_Type Optional ABC Pressure Switch" Status_Flags Required {TRUE,FALSE,FALSE,FALSE} Event_State Required OFFNORMAL Reliability Optional NO_FAULT_DETECTED Out_Of_Service Required FALSE Polarity Required NORMAL Inactive_Text Optional Static Pressure OK Active_Text Optional High Pressure Alarm Change_Of_State_Time Optional (23-MAR-1995, 19:01:34.0) Change_Of_State_Count Optional 134 Time_Of_State_Count_Reset Optional (1-JAN-1995, 00:00:00.0) Elapsed_Active_Time Optional 401 Time_Of_Active_Time_Reset Optional (1-JAN-1995, 00:00:00.0) Time_Delay Optional 10 Notification_Class Optional 3 Alarm_Value Optional ACTIVE Event_Enable Optional {TRUE,FALSE,TRUE} Acked_Transitions Optional {FALSE,TRUE,TRUE} Notify_Type Optional ALARM

15 FIRE BACnet Services Alarm & Event 13 Ack AlarmC Conf COV NotificationC Conf Event NotificationC Get Alarm SummaryC Gen Enrollment SumC Subscribe COVC Unconfirm COV NotU Object Access15 Add List ElemC Remove List ElementC Create ObjC Delete ObjC Read PropC Read Prop CondC read Prop MultipleC Write PropC Write Prop MultipleC File Access14 Atomic Read FileC Atomic Write FileC Remote Device MGT16 Device Comm ControlC Confirm Private TransferC unconfirmed Private Transfer U Conf Text MsgC UnConf Text Msg U Time SynchU Who-HasU I-HaveU Who-ISU I-amU Virtual Terminal17 VT OpenC VT CloseC VT DataC

16 FIRE BACnet Functional Groups FUNCTION GROUP DESCRIPTION Clock Capabilities generally associated with having a clock. Hand-held Workstation Hand-held or portable workstation capabilities. Personal Computer Workstation Main operator workstation capabilities. Event Initiation Detect and generate alarms and events. Event Response Ability to respond to alarms and events. COV Event Initiation Ability to initiate change-of-value notifications. COV Event Response Subscribe to and receive change-of-value notifications. Files Capability to read, write, upload and download files. Reinitialize Ability to be reinitialized from remote device. Virtual Operator Capable of providing operator side of virtual terminal session. Virtual Terminal Capable of providing server side of virtual terminal session. Device Communications Device Communication Control Service request execution supported. Time Master Able to initiate Time Synchronization Service request.

17 FIRE BACnet Protocol BACnet Lon Talk Control Status Arcnet Ethernet RS485 232 Phone Network CPP BACnet Net Virtual layer HDLC, etc. Set host 4120 DL EQB, RQB RS485 4120 NM 4120 RS485 Master Slave Token Passing UDP port - XBAC0 SLIP, PPP IP

18 FIRE Data Link Transport Formats ISO 8802-3 (IEEE 802.3) or Ethernet. ANSI/ATA 878.1 or ARCNET. Master Slave/Token Passing or MS/TP. Point-to-Point or PTP. LonTalk - proprietary technology developed by the Echelon Corporation.

19 FIRE Ethernet Pros Internatl standard. Exists in most bldgs. Ease of interface to PCs. No develop. tools. Very fast comm. (10 to 100Mbps). Transport media (unshielded twisted pair (UTP), coax, fiberoptic). Cons High cost. Distance limitations. Non-Deterministic (contention based).

20 FIRE ARCNET Pros ANSI standard. Deterministic. Scaleable speed. No develop. tools. High performance; medium cost. Very fast comm. (150K to 7.5Mbps). Transport media (UTP, coax, fiberoptic). Cons Single source chip. Too costly for low-end unitary controllers. Distance limitations.

21 FIRE MS/TP Pros ANSI standard. Deterministic. Low cost. Implementation in single chip microprocessors. Cons Transport media (EIA- 485). Limited speed (9.6K to 76Kbps).

22 FIRE PTP Pros Only choice for dial-up connections. Special design for point- to-point applications. Accommodates modern modem standards (V.32bis, V.42). Cons Transport media (point-to- point only; EIA 232). Limited speed (9.6K to 56Kbps).

23 FIRE LonTalk Pros Scaleable speed (32K to 1.25Mbps). Transport media (UTP, coax, RF, IR, fiberoptic). Cons Non-deterministic (contention based). Distance limitations. Single source chip (Motorola and Toshiba). Need develop. tools. Limited application size.

24 FIRE BACnet Transport Formats MS/TP LonTalk ARCNET Ethernet Speed Cost higher faster

25 FIRE BACnet compatible HVAC integration tested NIST tested for compatibility Building control integration tested Pre-Tested to ASHRAE Updated Standards and UL Listed BACpac Portal

26 FIRE Simplex BACpac Portal (4190-9008) BACpac Port A 4100 Port B TB2-1 TX TB2-3 RX TB2-2 RX TB2-1 TX TB2-5 GND TB2-5 GND BACpac Port A 4020 Port B TB2-1 TX TB1-8 RX TB2-2 RX TB1-6 TX TB2-5 GND TB1-10 GND Port Settings Computer Port 9600 Baud Even Parity 8 Bits 1 Stop Bit

27 FIRE Simplex BACpac Portal Portal 4100 Portal Node Portal GCC BACnet Workstation Node PTP LAN EIA 232 PTP (EIA 232) PTP (EIA 232) PTP (EIA 232) EIA 232 50 ft Max. 4100U

28 FIRE BACpac Portal on Ethernet LAN Securit y Panel Control Panel Vertical Lift Panel Lighting Panel Control Panel UUKL Panel UUKL Panel Control Panel HVAC Panel LAN Portal PTP to Ethernet BACnet Workstation Ethernet PTP Ethernet (EIA 232) EIA 232 50 ft Max. 4100U

29 FIRE Simplex... Offers BACnet interconnectivity Unlocks the gateway barrier to proprietary building management networks Reduces the cost of information exchange


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