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REFERENCE MANUAL

Put Bar Code Here

63-4523-01

BACnet Integration Manual for

TB7600 Series Thermostats

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

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

TB7600 Series

Thermostat with

Occupancy Sensor

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).

Summary of content (24 pages)

PAGE 1
BACnet Integration Manual for TB7600 Series Thermostats REFERENCE MANUAL 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.
PAGE 2
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 Thermostats Per Controller* WEBStation-AX WEB-2xx 126 3.0 or later WEB-6xx 126 3.0 or later WEB-7xx 126 3.5 * 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.
PAGE 3
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.
PAGE 4
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.
PAGE 5
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.
PAGE 6
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: 120 Ohms resistor should be installed at each end.
PAGE 7
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.
PAGE 8
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
PAGE 9
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.
PAGE 10
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 3rd 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.
PAGE 11
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS TROUBLESHOOTING Error / Trouble Condition Thermostat does not come online Possible Cause Solution Two or more controllers have the same MAC address. The MS/TP network has too many devices. Too many devices were installed without any repeaters. The MS/TP cable runs are broken Modify each duplicate address to a unique number. Do not exceed the maximum number of devices and maximum length allowed by the EIA-485 specifications.
PAGE 12
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.
PAGE 13
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS BACNET OBJECTS SUPPORTED Device Objects Table 4.
PAGE 14
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Objects Table TB7600A5x14B TB7652A5x14B TB7600B5x14B TB7652B5x14B TB7605B5x14B TB7656B5x14B TB7607B5x14B TB7657B5x14B TB7600H5x14B TB7652H5x14B Table 5.
PAGE 15
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS TB7600A5x14B TB7652A5x14B TB7600B5x14B TB7652B5x14B TB7605B5x14B TB7656B5x14B TB7607B5x14B TB7657B5x14B TB7600H5x14B TB7652H5x14B Table 5.
PAGE 16
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS TB7600H5x14B TB7652H5x14B Economizer Minimum Position AV 78 Present_Value (R,W) √ √ Mechanical Cooling Enabled BV 79 Present_Value (R,W) √ √ Mixed Air Setpoint AV 80 Present_Value (R,W) √ √ Heatpump Model Configuration Options GRP 81 Present_Value (R) √ √ High Balance Point AV 82 Present_Value (R,W) √ √ Low Balance Point AV 83 Present_Value (R,W) √ √ Comfort Mode BV 84 Present_Value (R,W) √ √ Reversing Valve Config
PAGE 17
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Standard Object Types Supported Table 6.
PAGE 18
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Property Value Range Restrictions for AI and AV objects Table 8.
PAGE 19
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS List of Property Enumeration Sets for BI and BV objects Table 9.
PAGE 20
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Property Enumeration Sets for MV Objects Table 10.
PAGE 21
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Table 10.
PAGE 22
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Table 10.
PAGE 23
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS 23 63-4523—01
PAGE 24
BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2011 Honeywell International Inc. 63-4523—01 M.S. 04-11 Printed in U.S.A.