Honeywell TB7600 Thermostat User Manual

BACnet Integration Manual for

TB7600 Series Thermostats

REFERENCE MANUAL

PRODUCT OVERVIEW

The TB7600 PI thermostat family is specifically designed for

single stage and multi-stage control of heating/cooling equipment

such as rooftop and self-contained units. The TB7600 Series are

communicating thermostats with models available in BACnet

MS/TP and ZigBee wireless mesh protocols and can be easily

integrated into a WEBs-AX building automation system based on

the NiagaraAX platform.The product features an intuitive, menu-

driven, back-lit LCD display, which walks users through the

programming steps, making the process extremely simple.

Accurate temperature control is achieved due to the product’s PI

time proportional control algorithm, which virtually eliminates

temperature offset associated with traditional, differential-based

thermostats.

TB7600 Series

Thermostat with

Occupancy Sensor

TB7600 Series

Thermostat

The TB7600 thermostats are also compatible with the Honeywell

PIR occupancy sensor covers. Thermostats equipped with a PIR

cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to Unoccupied

as required by local activity being present or not. This advanced occupancy functionality provides advantageous energy savings

during occupied hours without sacrificing occupant comfort. All thermostats can be ordered with or without a factory installed PIR

cover.

More Information

The additional following documentation is available on http://customer.honeywell.com:

•

TB7600 Series Installation Instructions (form number 62-2016).

TB7600 Series with Humidity Control Installation Instructions (form number 62-2017).

The PIR Application Guide for TB7600 Series (form number 63-4525).

Contents

Product Overview ............................................................. 1

Compatibility ..................................................................... 2

Tips and Things You Need to Know .................................. 2

Wiring guidelines .............................................................. 3

Network Configuration ...................................................... 4

Network Adapter ............................................................... 6

Integration ......................................................................... 7

Troubleshooting ................................................................11

Appendix ...........................................................................12

TB7600 Series Protocol Implementation

Conformance Statement (PICS) ..................................12

BACnet Objects Supported ...............................................13

Put Bar Code Here

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

COMPATIBILITY

Honeywell TB7600 Series thermostat compatiblity information is provided in Table 1.

Table 1. TB7600 Thermostat Compatibility Information

WEBs-AX Controller

WEB-2xx

Thermostats Per Controller*

126

WEBStation-AX

3.0 or later

3.5

WEB-6xx

WEB-7xx

126

128 total devices supported. One node used by controller and one for a repeater. A repeater is required if more than 64 devices

are on a bus.

TIPS AND THINGS YOU NEED TO KNOW

•

Each TB7600 Series thermostat is delivered from the factory with the default MAC address set at 254 (referred to as the Com

Addr in the parameters at the thermostat). At this value, BACnet communication is NOT active and the device will not

participate in the token pass either. The local LED status for the communication adapter at this point is one short flash only. To

enable BACnet communication, set the local MAC address configuration property of the thermostat to any valid value from 0

to 127.

•

After the initial configuration of your device and if your BAS allows you to remove objects, we suggest that you remove all the

configuration objects to prevent unnecessary polling of unused objects and to help speed up the network.

All configuration objects are available and accessible locally from the device itself using the local configuration routine. Please

refer to the TB7600 Series (form number 62-2016) or TB7600 Series with Humidity Control (form number 62-2017) installation

instructions for details.

•

In its default mode of operation, the device will automatically match its baud rate to the baud rate of the network. Automatic

baud rate detection will occur when the MS/TP communication port is initialized (on power up). If the network speed is

changed, the device will keep listening at the previously detected speed for 10 minutes before resuming auto-bauding. Re-

powering the devices will force right away auto-bauding.

If the device should go off-line, the following binded thermostat parameters will be released:

•

Room Temperature

Outdoor Temperature

Occupancy

•

The BACnet Data Link layer has two key parameters: the device object name and the device object ID. The device object

name must be unique from any other BACnet device object name on the BACnet network (i.e. not just the MS/TP sub-

network). The device object ID must be unique from any other BACnet device object ID on the entire BACnet network (i.e. not

just the MS/TP sub-network).

•

On models with scheduling, time synchronization can be made through a network even if the thermostat does not support the

full date. Therefore, the device cannot claim conformance to the DeviceManagement – TimeSynchronization - B (DM-TS-B)

service. The device object does not have the Local_Time or Local_Date properties.

Programmable models (with scheduling) are intending for stand-alone applications where the thermostat may be added to the

network at a later time. Once a programmable thermostat is added to a network all schedule must be done through the

Workbench. Local control of network settings is not supported. To hide the scheduling option from the local thermostat use

one of the BIs and set to Rem NSB if a BI is not being used.

•

Device Name and Device ID properties are writable in Honeywell device object. Both properties can be renamed from any

BACnet network management tool as long as the tool itself gives access to write to these properties.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

WIRING GUIDELINES

Overview

Honeywell uses EIA-485 as the physical layer between their devices and supervisory controllers

For clarity we will use the term “Device” to represent any product with an active EIA-485 network connection, including Honeywell

and non-Honeywell thermostats.

Table 2. Summary of Specifications for a Honeywell EIA-485 Network

Parameter

Details

Twisted pair 22AWG-24 AWG, shielded recommended

100-130 ohms

Media

Characteristic Impedance

Distributed capacitance

Maximum length per segment

Polarity

Less than 100 pF per meter (30 pF per foot)

1200 meters (4000 feet)

Polarity sensitive

Multi-drop

Daisy-chain (no T connections)

Terminations

TB7600, TB7300, and/or TB7200 Series thermostats are

installed at both ends of the MS/TP network: 120 Ohms resistor

should be installed at each end. To reduce issues with other

BACnet devices we recommended keeping like devices on the

same bus. TB7600, TB7300 and TB7200 Series thermostats can

be installed on the same bus.

A TB7600, TB7300, or TB7200 device is installed at one end of

the MS/TP network and another device is installed at the other

end:

Install an End-Of-Line resistor value that matches the other

device's instructions regarding the End-Of-Line resistors

Other devices are installed at both ends of the MS/TP net-

work:

Follow the other device’s instructions regarding the End-Of-Line

resistors.

Maximum number of nodes per segment

64 (Honeywell devices only)

Maximum number of nodes per network

Baud rate

128

9600, 19200, 38400, 76800 (Auto detect)

Cable Type

Honeywell recommends the use of balanced 22-24 AWG twisted pair with a characteristic impedance of 100-130 ohms,

capacitance of 30 pF/ft or lower. A braided shield is also recommended.

Impedance

A value based on the inherent conductance, resistance, capacitance and inductance that represent the impedance of an infinitely

long cable. The nominal impedance of the cable should be between 100Ωand 120Ω. However using120Ω will result in a lighter

load on the network.

Capacitance (pF/ft)

The amount of equivalent capacitive load of the cable, typically listed in a per foot basis. One of the factors limiting total cable

length is the capacitive load. Systems with long lengths benefit from using low capacitance cable (i.e. 17pF/ft or lower).

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

NETWORK CONFIGURATION

EIA-485 networks use a daisy chain configuration. A daisy chain means that there is only one main cable and every network

device is connected directly along its path.

Fig. 1 illustrates two improper network configurations and the proper daisy chain configuration.

Other methods of wiring an EIA-485 network may give unreliable and unpredictable results. There are no troubleshooting

methods for these types of networks. Therefore, a great deal of site experimentation may have to be done, making this a difficult

task with no guarantee of success. Honeywell will only support daisy chain configurations.

DAISY CHAIN

CONFIGURATION

STAR CONFIGURATION

BUS CONFIGURATION

M32571

Fig. 1. Three different network configurations: star, bus, and daisy chain.

Only the daisy chain configuration is correct for an EIA-485 network.

Maximum Number of Devices

A maximum of 64 nodes is allowed on a single daisy chain segment. A node is defined as any device (controller, thermostat,

repeater) connected to the RS485 network. Terminators do not count as a node.

NOTE: Biasing is not required with this series of devices.

To determine the number of nodes on a network, add the following:

•

One node for each device, including controller

One node for each repeater on the chain

For the example in Fig. 2, we have one node for the controller, plus 4 for the thermostats, for a total of 5 nodes.

END OF LINE RESISTOR DOES

NOT COUNT AS A NODE

EOL

NODE 2 NODE 3 NODE 4 NODE 5

NODE 1

LEGEND

EOL: END OF LINE RESISTOR

SC: SUPERVISORY CONTROLLER

M32572

Fig. 2. Five nodes network example.

If you have more than 64 devices, then repeaters are required to extend the network.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Maximum Cable Length

The maximum length of a chain is related to its transmission speed. The longer the chain, the slower the speed. Using proper

cable, the maximum length of an EIA-485 daisy chain is 4000-ft (1200 m). This will only work reliably for data rates up to 100,000

bps. TB7600 themostats' maximum data rate is 76,800 bps.

If you require a maximum network length of more than 4000 feet, then repeaters are required to extend the network.

EIA-485 Repeaters

If you have more than 64 devices, or require a maximum network length of more than 4000 feet, repeaters are required to extend

the network. The best configuration is to daisy chain the repeaters to the controller. From each of these repeaters, a separate

daisy chain will branch off. Fig. 3 demonstrates a valid use of repeaters in an EIA-485 network.

EOL

LEGEND

EOL: END OF LINE RESISTOR

R: RS485 REPEATER

SC: SUPERVISORY CONTROLLER

M32573

Fig. 3. Correct usage – repeaters are daisy-chained to the supervisory

controller and separate daisy chains branch from each repeater.

Do not install repeaters in series, as this may result in network reliability problems. Fig. 4 demonstrates an incorrect use of a

repeater in an EIA-485 network.

EOL

DO NOT ADD

SECOND

REPEATER

IN SERIES

EOL

LEGEND

EOL: END OF LINE RESISTOR

R: RS485 REPEATER

SC: SUPERVISORY CONTROLLER

M32574

Fig. 4. Incorrect usage – the second repeater in series may result in an unreliable system.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

End Of Line (EOL) Resistors

MS/TP network must be properly terminated. For daisy chain configurations, you must install an EOL resistor at each end of the

daisy chain. Depending on your MS/TP network configuration, the resistance value of the EOL resistor may change:

•

TB7600, TB7300, and/or TB7200 thermostats are installed at both ends of the MS/TP network:

20 Ohms resistor should be installed at each end.

•

A TB7600, TB7300, or TB7200 device is installed at one end of the MS/TP network and another device is installed at

the other end:

Install an End-Of-Line resistor value that matches the other device’s instructions regarding its EOL resistor value;

•

Other devices are installed at both ends of the MS/TP network:

Follow the other device’s instructions regarding its EOL resistor value.

NETWORK ADAPTER

The polarity of the connection to the cable is important. From one module to the other it is important that the same color wire be

connected to “plus” or “+” and the other color wire be connected to the “minus” or ”-“. Fig. 5 shows the proper MS/TP connections

and the location of the Status LED. This Status LED may help to troubleshoot network problems.

Fig. 5. Correct MS/TP connections and location of a Status LED on a BACnet module

IMPORTANT NOTE: The Ref terminal should NEVER be used to wire shields. The 2 shields from each feed of the network

connection to a thermostat should be wired together in the back of the thermostat and properly protected to prevent any

accidental connection to the ground.

The joined shield connection should then be grounded at a SINGLE point on the whole segment. More than one ground

connection to a shielded wire may induce ground loop noises and affect communication.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Network Adapter Status LED

Table 3 shows the different possibilities with the Status LED behavior of the BACnet module.

Table 3. Status LED condition and possible solutions

Condition of the Status LED

Possible Cause

Solution

BACnet communication NOT active at

default MAC address = 254

Change MAC address to another

value from 0 to 127

short blink

short blinks (no wires connected

The BACnet module is recognized on

the thermostat and has been installed

on the right thermostat model

to the module)

N/A

short blinks (wires connected to

Module is not at the same baud rate as

the network

the module)

Power off and on the thermostat

N/A

short blinks and a longer blink

The module has detected the presence

of a network

(wires connected to the module)

Right after power is applied: 2 long

blinks and then no blinking

Polarity has been reversed at the

module

Reverse polarity at the module

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

INTEGRATION

This section provides compatibility and programming information useful when setting up TB7600 Series thermostats on a WEBs-

AX building automation system.

Global Commands

The following figure shows which objects from the thermostat can be monitored and commanded from the BAS front-end.

GLOBAL COMMANDS ALL DEVICES

(

ALL THERMOSTATS)

OUTDOOR TEMPERATURE

OUTDOOR TEMPERATURE (AV9)

SYSTEM MODE (MV13)

FAN MODE (MV15)

OUTDOOR TEMPERATURE AND HVAC PLANT CURRENT MODE

BAS CURRENT ENERGY SAVINGS MODE

GLOBAL COMMANDS SPECIFIC DEVICES

(

SPECIFIC AREA THERMOSTATS)

SCHEDULE

OCCUPANCY COMMAND (MV12)

SCHEDULE AND OUTDOOR TEMPERATURE

OCCUPIED HEATING SETPOINT (AV42)

UNOCCUPIED HEATING SETPOINT (AV44)

OCCUPIED COOLING SETPOINT (AV43)

UNOCCUPIED COOLING SETPOINT (AV45)

KEYPAD LOCKOUT (MV18)

RESTRICT SER ACCESS TO THERMOSTAT

ROOM TEMPERATURE FOR TESTING AND OVERRIDE

ROOM TEMPERATURE (AV7)

MSTP NETWORK

BAS FRONT-END

TB7600 SERIES TSTAT

GLOBAL COMMAND CONTROL LEVEL

DEVICE LEVEL

M32570

Fig. 6. Global commands from a BAS front-end to a TB7600 series thermostat.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Typical Graphical User Interface (GUI) Objects

The following objects should be typically used in a GUI:

•

Room Temperature (AV7);

Occupied and Unoccupied Heat Setpoints (AV 42 and AV44);

Occupied and Unoccupied Cool Setpoints (AV 43 and AV45);

Outdoor Temperature (AV9);

Supply Temperature (AI16) (If available);

Occupancy Command (MV12);

Effective Occupancy (MV34);

System Mode RTU (MV14) or System Mode HPU (MV13);

G Fan (BI25);

Y1 Cool (BI26);

Y2 Cool (BI27);

W1 Heat (BI28);

W2 Heat (BI29) or Reversing Valve (BI30);

Economizer Output (AV22) (if available);

Aux (BI24);

DI 1 Status (BI31);

DI 2 Status (BI 32);

Frost Alarm (BI36) (if available);

Filter Alarm (BI38) (if available);

Service Alarm (BI39) (if available);

Fan Lock Alarm (BI40) (if available)

Fig. 7. Typical GUI for a TB7605B5014B with Economizer control.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Recommended Configuration Objects

The following objects and group objects should be typically used for configuration purposes. If your BAS allows you to remove

objects from your database, Honeywell recommends removing all configuration objects once your setup is complete. This will

prevent unnecessary polling of unused objects and will help speed up the network.

•

General Options 1 Group GRP 46 and its complete list of objects;

General Options 2 Group GRP 58 and its complete list of objects;

Programmable Model Configuration Options Group GRP 69 and its complete list of objects;

Stages Configuration Options Group GRP 72 and its complete list of objects;

Economizer Model Configuration Option Group GRP 76 and its complete list of objects;

Heatpump Model Configuration Option Group GRP 81 and its complete list of objects;

Dehumidification Model Configuration Option Group GRP 87 and its complete list of objects;

Humidification Model Configuration Option Group GRP 94 and its complete list of objects;

Default Device Name and default Device ID

Default Device Name is set to: Model number – MAC:

•

Where MAC is the current MAC address of the device.

Where Model number is Honeywell part number.

The device name will be upgraded as soon as there is a change to the device MAC address.

•

Default Device ID is set to: 76000 + MAC

Where MAC is the current MAC address of the device.

The device ID will also be upgraded as soon as there is a change to the device’s MAC.

For example, when a TB7600B5x14B thermostat with a MAC address of 63 is connected to a network, its default Device Name

will be TB7600B5x14B-63 and its default Device ID will be 76063.

Device Name and Device ID properties are writable in Honeywell device object. Both properties can be renamed from any

BACnet network management tool as long as the tool itself can write to these properties.

Integrating Honeywell Devices on an MS/TP Network

Before doing any BACnet integration, make sure to have Honeywell PICS (Protocol Implementation Conformance Statement).

This PICS document lists all the BACnet Services and Object types supported by a device and can be found at http://

customer.honeywell.com.

The TB7600 Series does not support the COV service. COV reporting allows an object to send out notices when its Present-

Value property is incremented by a pre-defined value. Since this is not supported at Honeywell end, special attention should be

given to the polling time settings at the Supervisory Controller and Workstation level when using a graphic interface or an

application program to read or write to a Honeywell object.

Graphical interfaces

For example, some graphic interface might poll every data linked to the graphic page on a COV basis. If the 3 party device does

not support COV, the graphic interface then relies on a pre-configured polling interval, which is usually in hundredths of

milliseconds. Any device containing a monitored object could be subject to network traffic congestion if such a polling interval is

used. Honeywell strongly recommends a polling interval of 5 seconds minimum for any graphic interface. This becomes even

more critical in area graphics where a single representation might poll many devices. If proper poll rate is not respected, devices

may be reported offline by certain front end by saturating the traffic handling capacity of BACnet MS/TP without COV

subscription.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Free programmed object or loops

As for the application program, you might want to read and write any MS/TP data on an “If Once” basis or a “Do Every” loop basis

instead of reading or writing to a 3 party device’s object directly in the program. Otherwise, any read or write request will occur

at the Supervisory Controller’s program scan rate, which might as well be in hundredths of milliseconds. This can easily bog

down a network as single commands can be sent to all ASC devices down the MS/TP trunks every hundredth of milliseconds.

Programs writing to the devices should have a structure similar to the following:

If Once Schedule = On then

MV11 = Occupied

End if

If Once Schedule = Off Then

MV11 = Unoccupied

End If

Do Every 5 min.

If Schedule = On Then

MV11= Occupied

Else

MV11 = Unoccupied

End If

End Do

Retries and Timeouts

Another thing to look for in a BACnet integration is the Device object of the Supervisory Controller (and the Operator’s

Workstation). This object contains the 2 following required properties: Retry Timeout and Number of APDU Retries.

The Retry Timeout property specifies the time between re-transmissions if the acknowledgement has not been received.

When you are experiencing problems with controllers dropping off-line, increasing this value may help.

The Number of APDU Retries property specifies the number of times unsuccessful transmissions will be repeated. If the

receiving controller has not received the transmission successfully after this many attempts, no further attempts will be

made.

For example, if one of the thermostats does not reply to a Supervisory Controller (SC) request, and the SC’s Retry Timeout is set

to 2000 msec and the Number of APDU Retries is set to 1 (still at the SC level), then the SC will send one other request, 2 sec

later. If the MS/TP device does not reply, it will be considered Off-line by the workstation.

So having a Retry Timeout value of 10000 msec and a Number of APDU Retries property set to 3 at the SC level may prevent

device from dropping Off-line. These properties should also be changed at the Workstation level since the workstation will likely

issue requests to any MS/TP devices when the graphics are used.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

TROUBLESHOOTING

Error / Trouble

Condition

Possible Cause

Solution

Two or more controllers have the same

MAC address.

Modify each duplicate address to a unique

number.

The MS/TP network has too many devices. Do not exceed the maximum number of

devices and maximum length allowed by the

EIA-485 specifications.

Repeaters need to be installed as specified

Thermostat does not

come online

Too many devices were installed without

any repeaters.

The MS/TP cable runs are broken

in this document.

Locate the break and correct wiring

MS/TP connections at the module were

Respect polarity of the wires on a MS/TP

reversed

network.

Apply power to the thermostat

The thermostat does not have power

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

APPENDIX A: BACNET OBJECTS

TB7600 SERIES PROTOCOL IMPLEMENTATION CONFORMANCE

STATEMENT (PICS)

Vendor Name: Honeywell

Vendor ID: 140

Product Name: TB7600 Thermostat Series

Product Model Number: TB7600A5x14B, TB7614B5x 14B, TB7605B5x 14B, TB7607B5x14B, TB7600H5x 14B,

TB7652A5x 0B, TB7652B5x 14B, TB7656B5x 14B, TB7657B5x14B and TB7652H5x0B.

Product Description

The TB76xx series BACnet communicating thermostat has been specifically designed for RTU and heatpump applications to be

monitored on a BACnet MS-TP network.

Supported BACnet Services

The BACnet communicating thermostat meets all requirements for designation as an Application Specific Controller (B-ASC).

The BACnet thermostat series supports the following BACnet Interoperability Building Blocks (BIBBs).

Application Service

Data Sharing – Read Property - B

Designation

DS-RP-B

Data Sharing – Read Property Multiple - B

DS-RPM-B

DS-WP-B

Data Sharing – Write Property - B

Device Management - Device Communication Control - B

Device Management – Dynamic Device Binding - B

Device Management – Dynamic Object Binding - B

DM-DCC-B

DM-DDB-B

DM-DOB-B

NOTE: The thermostat does not support segmented requests or responses.

NOTE: Time synchronization can be made through a network even if the thermostat does not support the full date. Therefore,

the device cannot claim conformance to the DeviceManagement – TimeSynchronization - B (DM-TS-B) service. The

device object does not have the Local_Time or Local_Date properties.

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

BACNET OBJECTS SUPPORTED

Device Objects

Table 4. Device Objects

Type and

Object Name

Object Property

Thermostat Parameter

Instance

TB76xxX5x14B

Device

Object_Identifier

Property 75 (R,W)

Object_Name

Unique ID number of a device on a network

Unique name of a Device on a network

Thermostat Model number

Property 77 (R,W)

Model Name

Property 70 (R)

Firmware Revision

Property 44 (R)

Protocol Version

Property 98 (R)

Protocol Revision

Property 139 (R)

Max ADPU Length

Property 62 (R)

ADPU Timeout

Property 10 (R)

Current BACnet firmware revision used by the

thermostat

Current BACnet firmware protocol version

Default is Version 1

Current BACnet firmware protocol revision

Default is Version 2

Maximum ADPU Length accepted

Default is 244

ADPU timeout value

Default is60 000 ms

Application-Software-

Version

Thermostat base application software version

Default is based on current released version

Property 12 (R)

Max_Master (R,W)

Maximum master devices allowed to be part of the

network. 0 to 127, default is 127

MS/TP_Address

Property 1001 (R,W)

BACnet MS-TP MAC Address. Proprietary attribute.

Default is as assigned by configuration

MS/TP_Baud_Rate

Property 1002 (R,W)

BACnet MS-TP Baud-Rate. Proprietary attribute.

Range is: 1 = 9.6 KBps, 2 = 19.2 KBps, 3 = 38.4 KBps, 4

76.8 KBps and 5 = Auto Baud Rate. Index 5 is Write

only. Reading attribute will state current Baud rate used.

Writing index 1 to 4 will fix the Baud rate to the desired

value.

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Objects Table

Table 5. Objects

Type and

Instance

Object Name

Object Property

Room Temperature

Room Temp Override

Outdoor Temperature

AV 7

Present_Value (R,W)

√

BV 8

AV 9

Outdoor Temp Override BV 10

Present_Value (R,W)

Present_Value (R)

Present_Value (R,W)

√

Room Humidity

AV 11

MV 12

Occupancy Command

√

System Mode HP

System Mode RTU

Fan Mode

MV 13

MV 14

MV 15

AI 16

Present_Value (R,W)

Present_Value (R)

Present_Value (R,W)

Present_Value (R)

√

Supply Temp

Supply RH

AV 17

MV 18

GR 19

AV 20

AV 21

AV 22

GRP 23

BI 24

√

Keypad Lockout

Control Output

PI Heating Demand

PI Cooling Demand

Economizer Output

Controller Status

AUX

√

G Fan

BI 25

Y1 Cool

BI 26

Y2 Cool

BI 27

W1 Heat

BI 28

√

W2 Heat

BI 29

Reversing Valve

DI 1 Status

BI 30

√

BI 31

√

DI 2 Status

BI 32

Local Motion

Effective Occupancy

Controller Alarms

Frost Alarm

Clock Alarm

BI 33

√

MV 34

GRP 35

BI 36

BI 37

Filter Alarm

BI 38

√

Service Alarm

Fan Lock Alarm

BI 39

BI 40

Temperature Setpoints GRP 41

Occupied Heat Setpoint AV 42

Occupied Cool Setpoint AV 43

Present_Value (R)

Present_Value (R,W)

√

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BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Table 5. Objects

Type and

Object Name

Object Property

Instance

Unoccupied Heat

Setpoint

AV 44

Present_Value (R,W)

√

Unoccupied Cool

Setpoint

AV 45

General Options 1

Temperature Scale

GRP 46

BV 47

Present_Value (R)

√

Present_Value (R,W)

Heating Setpoint Limit

Cooling Setpoint Limit

AV 48

AV 49

Present_Value (R,W)

√

Heating Lockout

Temperature

AV 50

AV 51

Present_Value (R,W)

√

Cooling Lockout

Temperature

Deadband

AV 52

MV 53

MV 54

BV 55

BV 56

BV 57

GRP 58

AV 59

AV 60

Present_Value (R,W)

Present_Value (R)

√

Heating CPH

Cooling CPH

Frost Protection

Aux Contact

Menu Scroll

General Options 2

Password Value

Power-up Delay

Present_Value (R,W)

Temporary Occupancy

Time

MV 61

Present_Value (R,W)

√

Fan Control

BV 62

MV 63

BV 64

MV 65

MV 66

MV 67

AV 68

Present_Value (R,W)

√

Anticycle

Fan Purge Delay

DI 1 Configuration

DI 2 Configuration

Proportional Band

Unoccupied Time

√

Programmable Model

Configuration Options

GRP 69

Present_Value (R)

√

Progressive Recovery

Event Display

BV 70

MV 71

Present_Value (R,W)

√

Stages Configuration

Options

GRP 72

Present_Value (R)

√

Heating Stages

Cooling Stages

Heatpump Stages

MV 73

MV 74

MV 75

Present_Value (R,W)

√

Economizer Model

GRP 76

Present_Value (R)

√

Configuration Options

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Table 5. Objects

Type and

Instance

Object Name

Object Property

Economizer

AV 77

AV 78

Present_Value (R,W)

√

Changeover Setpoint

Economizer Minimum

Position

Mechanical Cooling

Enabled

BV 79

Present_Value (R,W)

Present_Value (R)

√

Mixed Air Setpoint

AV 80

Heatpump Model

GRP 81

√

Configuration Options

High Balance Point

Low Balance Point

Comfort Mode

AV 82

AV 83

BV 84

Present_Value (R,W)

√

Reversing Valve

Configuration

BV 85

BV 86

GRP 87

BV 88

AV 89

Present_Value (R,W)

Present_Value (R)

√

Compressor Interlock

Dehumidification Model

Configuration Options

√

RH Display

Present_Value (R,W)

Dehumidification RH

Setpoint

Dehumidification

Hysterisys

AV 90

AV 91

BV 92

BI 93

Present_Value (R,W)

Present_Value (R)

Present_Value (R,W)

√

Dehumidification Low

OA Lockout

Dehumidification

Lockout Functions

Dehumidification Output

Status

Humidification Model

Configuration Options

GRP 94

AV 95

Humidification RH

Setpoint

Eff (Effective) Reset

Humidification RH Spt

AV 96

Present_Value (R)

√

(

Setpoint)

Humidification High

Limit Spt (Setpoint)

AV 97

AV 98

AV 99

Present_Value (R,W)

√

Low RH Setpoint

Low Temp Reset RH

Setpoint

High Temp Reset RH

Setpoint

AV 100

Present_Value (R,W)

√

Humidifier Output

Local Schedule

AV 101

Present_Value (R)

√

SCH 102

Present_Value (R,W)

√

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Standard Object Types Supported

Table 6. Standard Object Types Supported

Optional

Properties

Supported

Objects

Dynamically

Creatable

Dynamically

Deletable

Object Type

Writable Properties

Analog Input

;

Reliability

Out_of_Service

Present_Value^a

Out_of_Service^a

Object_Name^b

Analog Value

Reliability

Active_Text

Inactive_Text

Binary Input

Binary Value

Device

;

Out_of_Service

Reliability

Active_Text

Inactive_Text

Present_Value

Out_of_Service

Object_Identifier

Object_name

Max_Master

Max_Info_frames

Group

;

N/A

Reliability

States_Text

Present_Value

Out_of_Service

Multi-state Value

Present_Value

Weekly_Schedule

Schedule

;

Weekly_schedule

The following AV’s are defined as read only. When Out_of_Service properties is set to true, the Present_Value if written is not

derived from the application level of the thermostat.

•

Room Humidity (AV11)

PI Heating Demand (AV20)

PI Cooling Demand (AV21)

Economizer Output (AV22)

Eff Reset Humidification RH Spt (AV96)

Humidifier Output (AV101)

Object_Name property is writable for 1 object only :

Room_Temperature (AV7)

•

Proprietary Properties

Table 7. Proprietary Properties

Property name

BACnet Data type

Description

The version number of the BACnet communications

module. This is the hardware version number.

Major_Version

1000

CharacterString

MS/TP_Address

1001

1002

Unsigned

Display the MAC layer address of the module

MS/TP_Baud_Rate

Display the communication baud rate of the module

Display the temperature or humidity calibration value.

The range is –5.0 deg F to 5.0 deg F for a temperature

and –15% to 15% for humidity.

Sensor_Offset

1005

REAL

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Property Value Range Restrictions for AI and AV objects

Table 8. Property Value Range Restrictions for AI and AV objects

Object Type

and instance

AV 7

Under range

value

Over range

value

Object name

Room Temperature

Default value

-40°F (-40°C)

122°F (50°C)

N/A

Outdoor Temperature

Room Humidity

AV 9

AV 11

AI 16

-40°F (-40°C)

122°F (50°C)

100%

Supply Temp

-40°F (-40°C)

122°F (50°C)

100%

Supply RH

AV 17

AV 20

AV 21

AV 22

AV 42

AV 43

AV 44

AV 45

AV 48

AV 49

AV 50

AV 51

AV 52

AV 59

AV 60

AV 68

AV 77

AV 78

AV 80

AV 82

AV 83

AV 89

AV 90

AV 91

AV 95

N/A

PI Heating Demand

100%

N/A

PI Cooling Demand

100%

Economizer Output

100%

Occupied Heat Setpoint

Occupied Cool Setpoint

Unoccupied Heat Setpoint

Unoccupied Cool Setpoint

Heating Setpoint Limit

Cooling Setpoint Limit

Heating Lockout Temperature

Cooling Lockout Temperature

Deadband

40°F (4.5°C)

54°F (12°C)

40°F (4.5°C)

54°F (12°C)

40°F (4.5°C)

54°F (12°C)

-15°F (-26°C)

-40°F (-40°C)

2°F (1°C)

90°F (32°C)

100°F (37.5°C)

90°F (32°C)

100°F (37.5)

90°F (32°C)

100°F (37.5)

120°F (49°C)

95°F (35°C)

4°F (2°C)

1000

72°F (22°C)

75°F (24°C)

62°F (16.5°C)

80°F (26.5°C)

90°F (32°C)

54°F (12°C)

120°F (49°C)

-40°F (-40°C)

2°F (1°C)

Password Value

Power-up Delay

10 sec

120 sec

10 sec

Unoccupied Time

0.5 hrs

24.0. hrs

70°F (21°C)

100%

0.5 hrs

Economizer Changeover Setpoint

Economizer Minimum Position

Mixed Air Setpoint

14°F (-10°C)

55°F (13°C)

50°F (10°C)

34°F (1°C)

-40°F (-40°C)

15%

90°F (32°C)

30°F (-1°C)

95%

55°F (13°C)

90°F (32°C)

-12°F (-24°C)

70%

High Balance Point

Low Balance Point

Dehumidification RH Setpoint

Dehumidification Hysterisys

Dehumidification Low OA Lockout

20%

-40°F (-40°C)

10%

122°F (50°C)

90%

32°F (0°C)

50%

Humidification RH Setpoint

Eff (Effective) Reset Humidification

RH Spt (Setpoint)

Humidification High Limit Spt

AV 96

AV 97

100%

90%

N/A

50%

85%

(Setpoint)

Low RH Setpoint

AV 98

AV 99

10%

-40°F (-40°C)

20°F (-6.5°C)

90%

20%

-20°F (-29°C)

32°F (0.0°C)

N/A

Low Temp Reset RH Setpoint

High Temp Reset RH Setpoint

Humidifier Output

15°F (-9.5°C)

55°F (13°C)

100%

AV 100

AV 101

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

List of Property Enumeration Sets for BI and BV objects

Table 9. List of Property Enumeration Sets for BI and BV objects

Object Type and

Object Name

Inactive_Text

Active_Text

Default value

instance

Room Temp Override

Outdoor Temp Override

AUX

BV 8

Normal

Override

Normal

BV 10

BI 24

BI 25

BI 26

BI 27

BI 28

BI 29

BI 30

BI 31

BI 32

BI 33

BI 36

BI 37

BI 38

BI 39

BI 40

BV 47

BV 55

BV 56

BV 57

BV 62

BV 64

BV 70

BV 79

BV 84

Normal

Off

G Fan

Off

Y1 Cool

Off

Y2 Cool

Off

W1 Heat

Off

W2 Heat

Off

Reversing Valve

DI 1 Status

Off

Not Activated

Activated

Motion

Not Activated

DI 2 Status

Not Activated

Local Motion

Frost Alarm

No Motion

Off

No Motion

Off

Clock Alarm

Off

Filter Alarm

Off

Service Alarm

Fan Lock Alarm

Temperature Scale

Frost Protection

Aux Contact

Off

°C

°F

Off

N.O.

No Scroll

Off

N.C.

Scroll Active

N.O.

Scroll Active

Menu Scroll

Fan Control

Fan Purge Delay

Progressive Recovery

Mechanical Cooling Enabled

Comfort Mode

Off

Active

Off

Comfort

Economy

Comfort

Energized in

Heating

Energized in

Cooling

Energized in

Cooling

Reversing Valve Configuration

Compressor Interlock

BV 85

BV 86

BV 88

Off

RH Display

Disabled

Enabled

Disabled

Dehumidification Lockout

Functions

Dehumidification Output

Status

BV 92

BI 93

Disabled

Off

Enabled

N/A

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Property Enumeration Sets for MV Objects

Table 10. Property Enumeration Sets for MV Objects

Object Type

and instance

Object Name

BACnet Index

Text

Default value

Local Occupancy

Occupied

Unoccupied

Off

Occupancy Command MV12

Local Occupancy

Auto

System Mode HPU

System Mode RTU

MV13

MV14

Cool

Auto

Heat

Emergency

Off

Auto

Cool

Heat

Fan Mode

MV15

MV18

MV 34

Auto

Smart

Level 0

Level 1

Level 2

Occupied

Unoccupied

Temporary Occupied

3 CPH

Keypad Lockout

Effective Occupancy

Level 0

Depends on local

occupancy

4 CPH

5 CPH

Heating CPH

Cooling CPH

MV53

MV54

4 CPH

6 CPH

7 CPH

8 CPH

3 CPH

4 CPH

63-4523—02

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

Table 10. Property Enumeration Sets for MV Objects

Object Type

Object Name

BACnet Index

Text

Default value

and instance

0 hour

1 hour

2 hours

3 hours

4 hours

5 hours

6 hours

7 hours

8 hours

9 hours

10 hours

11 hours

12 hours

0 minute

1 minute

2 minutes

3 minutes

4 minutes

5 minutes

None

Temporary Occupancy

Time

MV61

3 hours

Anticycle

MV63

MV65

MV66

2 minutes

RemNSB

RemOVR

Filter

DI1 Configuration

None

Service

Fan lock

None

RemNSB

RemOVR

Filter

DI2 Configuration

None

Service

Fan lock

2 F

3 F

0.6 C

1.2 C

1.7 C

2.2 C

2.8 C

3.3 C

3.9 C

4 F

5 F

6 F

7 F

8 F

Proportional Band

Event Display

MV 67

MV71

2 Events

4 Events

2 Event

63-4523—02