Trane BACnet Objects2

7/28/2019 Trane BACnet Objects2

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1996-2009 PolarSoft Inc., All Rights Reserved

COV Subscription

SubscribeCOV Service

SubscriberProcessID

Lifetime

123

300

ObjectID

ConfirmedNotifications TRUE

AV27

SubscribeCOVProperty Service

SubscriberProcessID

Lifetime

123

300

ObjectID

ConfirmedNotifications TRUE

AV27

PropertyID

COV Increment

85

1.0


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COV Notification

ConfirmedCOVNotification Service

SubscriberProcessID

Time Remaining

123

143

ObjectID AV27

List of Values

3415DeviceIDPropertyID

Array Index

Property Value


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Modeling With Objects


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Data Model

Name e.g. OutsideLightPresent Value on or off?

Status OK, Fault, Overridden

Last Changed 2008-09-06 20:13Hours On 1652.5


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Everything is a Point

Name

Present Value

Hours On

ON

1652.5

Status

Last Changed

OK

2008-09-06 20:13

OutsideLight


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Use Standard Objects to Model Points

Name

Present Value

Hours On

BO or BV

AV

Status

Last Changed

MSI or MSV


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Mix Standard Objects and Proprietary

Objects

Name

Present Value

Hours On

BO or BV

AV

Status

Last Changed

MSI or MSV

Proprietary String object

Proprietary Date object


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Everything is an Object

OutsideLight

Present Value

Hours On

ON

1652.5

Status

Last Changed

OK

2008-09-06 20:13


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Standard Object

BO object

Present_Value

Elapsed_Active_Time

Active

1652.5

Status_Flags

Change_Of_State_Time

Normal

2008-09-06 20:13

Object_Name OutsideLight


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Proprietary Object

Proprietary XX object

My Value

Hours On

1

1652.5

My Status

Last Change

0

2008-09-06 20:13

Object_Name OutsideLight


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I/O Modeling: Events

Event

Enrollment

object

ReadProperty

or

ReadPropertyMultiple

(unsubscribed)

COVNotification

EventNotification

Present_Value


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I/O Modeling: Feedback

BO object

Present_Value

Time_Delay

Active

5

Event_State

Feedback_Value

Offnormal

Inactive

Object_Name AHU3Fan


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HOA, Override, Out of Service

Inputs

sensor

input

Status_Flags

Present_Value

Out_Of_Service

Event_State

Reliability

IN_ALARM

FAULT

OVERRIDDEN

OUT_OF_SERVICE

NOT NORMAL?

BACnet Alarm/FaultLogic

Reliability

Logic

NOT NO_FAULT_DETECTED?

F=auto

T=manual

manual

setting

OverrideDecision

Interface_Value

wri tes to

Present_ValueF

T

F

Twri tes to

Reliabi l i ty

sensor

input

Status_Flags

Present_Value

Out_Of_Service

Event_State

Reliability

IN_ALARM

FAULT

OVERRIDDEN

OUT_OF_SERVICE

NOT NORMAL?NOT NORMAL?

BACnet Alarm/FaultLogic

Reliability

Logic

NOT NO_FAULT_DETECTED?NOT NO_FAULT_DETECTED?

F=auto

T=manual

manual

setting

OverrideDecision

Interface_Value

wri tes to

Present_ValueF

T

F

Twri tes to

Reliabi l i ty


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HOA, Override, Out of Service

Outputs

F

T

T=manual

control

output

Status_Flags

Out_Of_Service

Event_State

Reliability

IN_ALARM

FAULT

OVERRIDDEN

OUT_OF_SERVICE

NOT NORMAL?

BACnet Alarm/Fault

LogicReliability

Logic

NOT NO_FAULT_DETECTED?

F=auto

manual

setting

OverrideDecision

Interface_Value

Present_Value

F

T

Last

In-Service

Value

wri tes to

Reliabil i ty

F

T

T=manual

control

output

Status_Flags

Out_Of_Service

Event_State

Reliability

IN_ALARM

FAULT

OVERRIDDEN

OUT_OF_SERVICE

NOT NORMAL?NOT NORMAL?

BACnet Alarm/Fault

LogicReliability

Logic

NOT NO_FAULT_DETECTED?NOT NO_FAULT_DETECTED?

F=auto

manual

setting

OverrideDecision

Interface_Value

Present_Value

F

T

Last

In-Service

Value

wri tes to

Reliabil i ty


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Change of State Time, Count

BI/BO/BV object

Present_Value

Time_Of_State_Count_Reset

Active/Inactive

Change_Of_State_Count 23457

Elapsed_Active_Time 1257.3

Change_Of_State_Time 2008-09-06 20:13

2008-09-06 21:22

Time_Of_Active_Time_Reset 2008-09-06 21:22


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Structuring and

Aggregating Objects


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Structured View Object

Subordinate_List

Node_Type

Subordinate_Annotations Mode Schedule, Heating Setpoint, Cooling Setpoint

Structured View Object

equipment

Node_Subtype AHU

DeviceID

ObjectID


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Group Objects

Present_Value

List_Of_Group_Members ObjectIDPropertyID

Array Index

Property Value

ObjectIDPropertyID

Array Index

Property Value

Present_Value

Group_Members

Group_Member_Names Status, Mode, Level

ObjectID

PropertyID

Array Index

Property Value

ObjectID

PropertyID

Array Index

Property Value

DeviceID

Global Group


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Questions


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Character Sets

String Values, any lengthCharacter Set Code

ANSI 3.64

DBCS (plus code page)

JIS (Japan)

ISO 10646 UCS-4 (Everything)

ISO 10646 UCS-2 (Unicode)

ISO 8859 (ANSI + Latin/Europe)UTF-8


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Character Set Contexts

Object_NamesString properties, e.g. Description,

Active_Text, etc.

String parameters, e.g. PasswordsComparison, e.g.

ReadPropertyConditional


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Questions


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Proprietary

Extensions


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Extensible Enumerations

Enumeration Name Reserved Range Maximum Value

error-class 0-63 65535error-code 0-255 65535BACnetAbortReason 0-63 255BACnetDeviceStatus 0-63 65535

BACnetDoorAlarmState 0-255 65535BACnetEngineeringUnits 0-255 65535BACnetEventState 0-63 65535

BACnetEventType 0-63 65535BACnetLifeSafetyMode 0-255 65535BACnetLifeSafetyState 0-255 65535BACnetLifeSafetyOperation 0-63 65535BACnetMaintenance 0-255 65535BACnetObjectType 0-127 1023BACnetProgramError 0-63 65535BACnetPropertyIdentifier 0-511 4194303

BACnetPropertyStates 0-63 254

BACnetReliability 0-63 65535BACnetRejectReason 0-63 255BACnetSilencedState 0-63 65535

BACnetVTClass 0-63 65535


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Proprietary Object Types

and Properties

Some BACnet clients wont support

Avoid using constructed datatypes

Publish detailed descriptions of allproprietary object types and their

properties


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EventNotifications

Complex, Extended Event TypesUsing event types with objects not

listed in 13-2

Faults


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Proprietary Services

PrivateTransferunconfirmed

confirmed


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Configuration

Read/Write properties is preferred vs.PrivateTransfer or

AtomicRead/WriteFile

Tools vs. Files (e.g. XML) vs. PrivateMechanisms (web pages etc.)

Documents

Trane BACnet Objects2