User Manual

Overview
BACnet
4
Siemens Industry, Inc.
Application Note, App 14901
140-1230
2020-02-11
Overview
In Application 14901, the controller controls a multi-stage heat pump with a reversing
valve. In addition to compressors, this heat pump may also be equipped with electric
heat or a fossil fuel furnace for auxiliary heat.
Secondary features include Demand Ventilation Control, Occupancy Indication,
Economizer Enabling, and Humidification/Dehumidification Enabling a call for external
equipment to energize.
Figure 1: Hardware Diagram.
BACnet
The thermostat communicates on industry-standard BACnet MS/TP networks.
NOTE:
Bold, mixed case names = Exposed BACnet objects.
All caps names = Internal variables that cannot be accessed through BACnet.
Table 1: BIBB
Product
Supported BIBBs
BIBB Name
RDY2000BN
DS-RP-B
Data Sharing - Read Property-B
DS-RPM-B
Data Sharing - Read Property Multiple-B
DS-WP-B
Data Sharing - Write Property-B
DS-WPM-B
Data Sharing – Write Property Multiple - B
DS-COV-B
Data Sharing – Change of Value - B
SCHED-WS-I-B
Scheduling – Weekly Schedule Internal - B
DM-DDB-B
Device Management - Dynamic Device Binding-B
DM-DOB-B
Device Management - Dynamic Object Binding-B
DM-DCC-B
Device Management - Device Communication Control-B
DM –PT –B
Device Management – Private Transfer - B