Bacnet Objects And Network Configuration; Transmission Type; Initial Configuration; Ms/Tp Communication Configuration - Contemporary Controls BASstat BAST-121C-B2 User Manual

4.4. BACnet Objects and Network Configuration

Transmission type

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Physical layer: EIA-485
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Protocol: BACnet MS/TP
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Baud rate: 9600-76800bps (38400bps default)
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MAC address: 1 (default)
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Device Instance: 700001

Initial Configuration

All configuration parameters are settable through use of the buttons on thermostat by entering the
Engineer Menu, or once installed on the BACnet network, configuration can also be altered using
BACnet commands. Network command-based configuration can also be accomplished using a
laptop/computer/tablet and Contemporary Controls' free

MS/TP Communication Configuration

Overview
The BASstat MS/TP thermostat is preconfigured with a MAC address of 1 and default baud rate of
38400bps. BACnet MS/TP configuration requires setting the baud rate or using the default baud rate
of 38.4kbps. A unique MS/TP MAC address is required to distinguish it from other MS/TP devices on
the bus (default MAC address = 1). When more than one BASstat is installed at the same time, their
MAC addresses must be configured prior to communicating on the BACnet MS/TP bus or
communication will fail due to duplicate MAC addresses. A unique Device Instance Number
throughout the entire BACnet internetwork is also required to distinguish the device from all other
BACnet devices.
UM-15095000-AA0
BACnet Discovery Tool.
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