SMARTron BACnet presenation

7/29/2019 SMARTron BACnet presenation

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What is BACnet?

BACnet stands for Building Automation Control network. A data communication protocoldeveloped by ASHRAE, BACnet is known as "ANSI/ASHRAE standard 135-2001" and nowalso as the international standard "ISO 16484-5." Its purpose is to standardize communicationsbetween building automation devices from different manufacturers, allowing data to be sharedand equipment to work together easily.

BACnet specifies six network types to accommodate different project and system requirements.These networks use widely accepted: Ethernet (IEEE 802.3/ISO 8802-3), ARCNET (ANSI/ATA 878.1), Master slave/token passing (MS/TP, a twisted-pair RS-485 network created by BACnet) Point-to-point (PTP, also created by BACnet) LonTalk. BACnet/IP

The sixth option, BACnet/IP, was added later on to allow BACnet messages to be transported across theInternet and other IP-based wide area networks.

BACnets - future of Building Automation

What networks does BACnet specify?


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Why was BACnet developed?Before BACnet was developed, every manufacturers control equipment line was based on its

own proprietary protocol. Any time equipment from different manufacturers needed to shareinformation, custom software and hardware had to be developed and maintain at considerabletime and cost.

BACnet benefits

BACnet affords facility owners and managers maximum flexibility and cost-effectiveness byallowing control products made by different manufacturers to be integrated into a single,uniform system. It is designed to allow HVAC/R, lighting, fire, access and security devices tointeroperate. Owners can select the best technologies and services available, with theinvestment protection of being able to competitively expand current systems, without beinglocked in or having to replace them in the event that an original supplier loses favor. BACnet

also facilitates single workstation control in campus/multi-building environments composed of avariety of different manufacturers control systems.



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BACnet ...

Is independent from specific hardware or operating systemsThis helps to protect customer investment as technology keeps changing

Is an ISO standardDoes not require any license cost (royalty free)Supports multiple network options (including IP)Includes standards also for complex transactions and communication requirementsHas got a strong track record of projects doneReceives support from multiple vendors, thus allowing competitionDoes not only support HVAC control applications, but also security and life safety applications

PICS allows to compare the communication behavior of applications and products in a standard wayNo fixed architectureBACnet devices can be arranged in flat, bus-like topologiesBACnet devices can be arranged hierarchically

More and more vendors are committed to itTwo pieces of evidence for this are the growing number of available products and the growing list ofcompanies seeking BACnet Vendor IDs

Why BACnet?

BACnet allows intelligent systems from various industries and manufacturers to exchangeinformation, such as temperatures, setpoints, schedules, trend logs and alarms, and coordinateequipment operation to achieve optimum building performance. It saves facility owners/managersthe costs of purchasing, engineering and maintaining custom interfaces for supervising packagedHVAC equipment (e.g. chillers), as well as integrating diverse building systems such as HVAC,lighting, fire, elevators, electrical services, etc.



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What is PICS?PICS stands for Protocol Implementation Conformance Statement. It is a detailed description for agiven BACnet device stating its inherent BACnet capabilities. The level of BACnet functionality aretypically scaled to suit the type of building automation device, ranging from simple intelligent peripheraldevices to sophisticated operator workstations. Thus PIC statements are important for specifiers andusers to ensure that the various devices will satisfy the desired interoperability requirements whendesigning and implementing integrated BACnet systems.

What is nativeBACnet?Native BACnet typically refers to a device that inherently represents data in BACnet format andcommunicates utilizing BACnet messaging. Native BACnet devices can be connected to a BACnetsystem without requiring a gateway device or software driver to translate to and from any proprietaryprotocols. Typical examples of native BACnet devices would be a native BACnet VAV applicationcontroller at the field level, and a native BACnet general system controller for central mechanicalsystems (e.g. air handing units) at the automation level.



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What is the BACnet Testing Laboratory (BTL)?

The BACnet Testing Laboratories was formed by BACnet Internationalto perform BACnet compliance & interoperability testing of buildingautomation products utilizing BACnet. A product-listing programidentifies the products tested by BTL that have passed the necessaryrequirements.


www.bacnetassociation.org
http://www.bacnetassociation.org/http://www.bacnetassociation.org/


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BACnet Transport Options


As the diagram shows, there is a fairly clear division of increasing cost for increasing performancebetween the various BACnet transport options. There are certainly areas of overlap, where in

some circumstances it may be possible to use several different transports to accomplish the samejob, and where the cost/performance ratio may not always be the same. There are, for example,some circumstances where ARCNET can be less costly to implement for the same performancethan LonTalk .


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Functional networking of different disciplines (systems) incommercial buildings

Heating Chiller Air conditioning Room management Domestic hot water

Electrical install.Waste waterTransportationSpecial install.Fire damper

BACS Automation and OperationSecurity Alarm Organization

Fire Intrusion

Sabotage Access control Technical install. Fire Intrusion Sabotage

Fire sprinkler Escape route

Lift CCTV Access control Fire damper Access control Technical install.

Smoke control

Intercom Telephone Emergency lighting

Center of TechnicalBuilding Management



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BACnet OperatorWorkstation

MS/TP a twisted-pair RS-485

BACnet/IP to MS/TP

Router

BACnet/IP to other

GatewayInternet


BACnet/IP to MS/TP

Router

Controllers

Network 1 (Floor 24)

Controllers

Network 2 (Floor 2)

Network 3 (Floor 43)

ALFA COM

Basic structure of BACnet network



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Router

BACnet Controllers Network

Small network

ALFA COM


BACnet OperatorWorkstation


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Before.



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After!!!



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ABB

Belimo Controls CAREL

Cimetrics Honeywell Invensys Kieback&Peter

Johnson Controls Saia-Burgess Sauter Schneider Electric Siemens Building Technologies TAC (Andover Controls)

Trane York

BACnet Leaders:



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Where can I get more information about writing specifications for BACnet systems?

A document published by the National Institute of Standards and Technology (NIST) - Internal Report6392, GSA Guide to Specifying Interoperable Building Automation and Control Systems Using

ANSI/ASHRAE Standard 135-1995, BACnet - may be particularly helpful. This report is available tothe public at www.bacnet.org (located in the bibliography section).

BACnet LinksBACnet International www.bacnetinternational.orgASHRAE BACnet committee www.bacnet.orgEuropean BACnet Interest Group www.big-eu.orgPublications (incl. the BACnet standard) www.ashrae.org

http://www.bacnet.org/http://www.bacnetinternational.org/http://www.bacnet.org/http://www.big-eu.org/http://www.ashrae.org/http://www.ashrae.org/http://www.big-eu.org/http://www.big-eu.org/http://www.big-eu.org/http://www.bacnet.org/http://www.bacnetinternational.org/http://www.bacnet.org/


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ALFA COM

"Alfa-Com-1BN" system is designed to Building Management in order to enable the user a full controlat the various electric loads operation inside or outside the building. The system will provideinformation about proper functioning of these loads. Will provide central control on electric energyconsumers and enable maximal energy saving by optimal use of A/C systems, lighting etc.

Alfa-Com-1BN Controller can operate stand-alone or can be networked to perform complex HVACcontrol,monitoring, and energy management functions. As native BACnet controller, the Alfa-Com-1BN can communicate with other BACnet devices on the MS/TP network, in strict accordance withANSI/ASHRAE standard 135-2004, and designed as BACnet Advanced Application Controller (B-AAC).


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Basic I/O Definitions

Inputs:3analog inputs for temp sensors type NTC Thermistor10K@25C(B=3970).1analog input for voltage signal (0-10) VDC from another device.

1analog input for current signal (4-20) mA from another device.4digital inputs (ON-OFF) from dry contact switches - motion detector, door, window.

Outputs:1output "COOL-ON/OFF" relay to Cool valve [email protected] output "COOL-PROPORTIONAL"- (0-10) VDC.1analog output "COOL/HEAT-PROPORTIONAL"- (0-10) VDC3output "HEAT-ON/OFF" relays to Heat valve or to Heat elements (monitoring only) [email protected] "ADD-ON/OFF" monitoring relay to operate additional load [email protected] "3-Fan Speed" relays for fan motor operation at 3 speeds [email protected] "ILLUMINATION CONTROL" relay to lighting operation (monitoring only) 7A@230VAC.

Comments:Optional to select 1 of 2 "COOL outlet" work modes (see paragraphs 3.2.1 and 3.2.2).This mode selection will be done by "jumper" on electronic circuit of the power unit.At control of Heat elements an option to select method of Heat elements operation:Accumulating method stage 1 + stage 2 + stage 3, or binary method stage 1 or stage 2 or

stage 1 + stage 2 together (as long as Heat elements are of different capacity).

Interfaces:Communication interface I2C for display unit.Communication interface I2C for technical testing equipment.2channels of RS485/232 communication interface for BACnet MS/TP or Modbus networks.10/100Ethernet port for BACnetIP or TCP Modbus networks.


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Alfa-Com-1BN

BACnet Controller

Power Unit

Fan Motor

HIGH

LOW

MED

Cool

Valve

SUPPLY

230VAC

ALFA-COM-1BN-GENERAL CONCEPTALFASMART ENERGY MANAGEMENT

3StageHeat

Elements

Prop

HeatValve

Illumination

ADD

Additional

Output

0-10VIN

4-20mAIN

EXT.DEVICE

1

EXT.DEVICE

2

Dry

Contact

Sw1

Dry

Contact

Sw2

Dry

Contact

Sw3

Dry

Contact

Sw4

ANALOG INPUTS DIGITAL INPUTS

NTS

TEMP.

SENSOR

NTS

TEMP.

SENSOR

NTS

TEMP.

SENSOR

1 32

INTERNAL POWERSUPPLY

230VAC/12VDC

RJ11

OFF OFF OFF OFF

ON ON ON ON

OUTPUTS

COM 1Terminal

21.03.2008 Rev. 05

I2CProtocol

COM 2

Terminal

0-10VOUT

P

Extended COMTerminal

1 2 3

Prop

CoolValve

0-10VOUT

P

IRRemoteControl

(option)

Alfa-Smart F/C-A/CRoom ThermostatWith Temp. Sensor

COOL MODE

COMMUNICATION Alfa-SmartDiagnostic

Tester

RS232/485

BACnet MS/TP Server orModbus Master/Slave

CommunicationTerminal

I2CProtocol

RS232/485

BACnet MS/TP Server orModbus Master/Slave

CommunicationTerminal

InternetTCP Modbus or

BACnet IP

HMITerminal

Remote Server

RJ11


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BACnet Protocol Implementation Conformance Statement

BACnet Standardized Device Profile:

BACnet Application Specific Controller (B-ASC)

Writable PropertiesOptional Property

Supported

Dynamically

Deletable

Dynamically

Creatable

Supported

ObjectsObject type

+Analog Input

+Analog Value

+Binary Input

+

Binary Output

+Binary Value

+Device

Multi-state Value

BACnet ServiceDesignationApplication Service

Read PropertyB DS-RP-BData Sharing

Read Property MultipleB DS-RPM-BData Sharing

Write PropertyB DS-WP-BData Sharing

Device Communication ControlB DM-DCC-BDevice Management

Receive Who-Is, send I-AmB DM-DDB-BDevice Management

Receive Who-Has, send I-HaveB DM-DOB-BDevice Management


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Analog ValueAnalog InputBinary

Value

Binary OutputBinary InputDevice

++++++Object Identifier

++++++Object Name

++++++Object Type

+Description

+System Status

+Vendor Name

+Vendor Identifier

+Model Name

+Firmware Revision

+Protocol Version

+Location

+Services Supported

+Object Types Supported

+Max Master

+++++Present Value

++Units

+++++Out-of-Service

+++++Status Flags

+++++Event State

Object Property Support


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DescriptionPresent Value

Access TypeObject Name

Indicates system status ON/OFFR/WSYSTEM_STATUS_BV1

Indicates regular display (TH1 or SP)R/WSP_AMB_DISPLAY_BV2

Indicate sleep mode activityR/WSLEEP_BV3

Indicate filter timer statusRFILTER_BV4

Indicates TH1 Location 0-Room thermostat 1-Return airR/WTH1_LOCATION _BV5

Indicates operation on power upR/WSTOP_START_ACT_BV6

Indicates demand temperature display option C/FR/WTEMPER_DISPLAY_BV7

Lock command execution from room displayR/WDISPLAY_LOCK_BV8

Indicates communication with thermostat (display)RDISPLAY_COMM_BV9

Demand temperature SPR/WSET_POINT_AV1

Dead zone for cool modeR/WDEAD_ZONE_COOL_AV2

Dead zone for heat modeR/WDEAD_ZONE_HEAT_AV3

TH1 CompensationR/WOFFSET_AIR_SNS_AV4

Set point low limitR/WSP_LIMIT_LOW_AV5

Set point high limitR/WSP_LIMIT_HIGH_AV6

TH1 Temperature value (C/F)RNTC_TH1_AV7



Display on board sensor Temperature value (C/F)RNTC_TH4_AV10

Mode (Cool,Heat,Fan,Dry,Auto)R/WSYSTEM_MODE_ AV11

Indoor unit fan speed (Low,High,Turbo,Auto)R/WFAN_SPEED_ AV12System faultRSYSTEM_FAULTS_ AV13

Proportional actuator state (Percent opening)RPROP_HEAT_ AV14

Proportional actuator state (Percent opening)RPROP_COOL_AV15

Dipswitch digital valueRDIP1_STATUS_ AV16

Operation Indoor fan on cool satisfied stateR/WCOLD_Draft_COOL_BV10

Operation Indoor fan on heat satisfied stateR/WCOLD_Dfart_Heat_BV11

1-Binary 0-analog (default analog)R/WHEAT_ELEMENTS_OPER_BV12


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BACnets - future of Building AutomationDescriptionPresent Value

Access TypeObject Name

0-2 pipes,1-4 pipes (2 pipe Cool/Heat valve same output Cool outputproportional)

4 pipes (Heat valve output from Heat proportional output, Cool valve output fromCool proportional output)

R/WSYSTEM_FAN_COIL_CONFIG_PROP_BV13

Shut off all heat elements then temperature coil sensor reached to 65 C65 COVER_HEATING_OFF_AV17

Recovery heat mode then temperature coil sensor drops from 65 to 5555 COVER_HEATING_RECOVERY_AV18

Delay for changing demanded operation to satisfied by BMS request.R/WBMS_STOP_DELAY_AV19

Delay for changing demanded operation to satisfied by Safety element request.R/WSAFETY_OVERHEATING_PROTECT_DELAY_AV20

0-Normaly Open 1-Normaly CloseR/WSAFETY_OVERHEATING_ELEMENT_TYPE_BV14

0-Normaly Open 1-Normaly CloseR/WBMS_ELEMENT_TYPE_BV15

Delay of indoor fan operation after heat element switched offR/WAUTO_FAN_DELAY

0-Valve (hot water) 1-Heat elementR/WHEAT_ELEMENT_TYPE_BV16


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Documents

SMARTron BACnet presenation