Honeywell TB7600 User Manual download pdf (Page 10)

BACNET INTEGRATION MANUAL FOR TB7600 SERIES THERMOSTATS

63-4523—02 10

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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Honeywell TB7600 User Manual Page 10

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