Honeywell TB7200 Benutzerhandbuch

BACNET INTEGRATION MANUAL FOR TB7200 & TB7300 SERIES THERMOSTATS

63-4524—01

• To assign a Room Temperature (AV7) value manually, users must first enable the Override mode in the Room Temp Override

(BV8) object.

• To assign a Room Humidity (AV10) value manually, users must first enable the Override mode in the Room Humidity Override

(BV11) object.

• 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 give access to write to these properties.

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

Media

Twisted pair 22AWG-24 AWG, shielded recommended

Characteristic Impedance

100-130 ohms

Distributed capacitance

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

Maximum length per segment

1200 meters (4000 feet)

Polarity

Polarity sensitive

Multi-drop

Daisy-chain (no T connections)

Terminations

1. TB7200, TB7300 and/or TB7600 Series thermostat devices

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

120 Ohms resistor should be installed at each end.

2. A TB7200, TB7300 or TB7600 Series thermostat 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

3. Other devices are installed at both ends of the MS/TP

network:

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

128

Baud rate

9600, 19200, 38400, 76800 (Auto detect)