To Set Up Bacnet - Carrier Connect 33CONNECTSTAT43FX Installation Manual

Using installer settings

To set up BACnet

Setting
BACNET ENABLE—Enable or disable the BACnet communications. After restoring factory
defaults, the user is prompted to decide whether or not to enable BACnet. Until this
choice is made, the installer menu loads after every restart and the installer menu goes
directly to the BACNET ENABLE setting where ? is displayed.
NOTE Changing the BACNET ENABLE requires the thermostat to be restarted. When the
installer exits the configuration settings after making changes to the BACnet settings,
there is a prompt to either cancel those settings or save the new settings which force a
thermostat reset.
MSTP MAX MASTER—Set the maximum MAC address for BACnet MS/TP master devices.
BACnet MS/TP MAC addresses for master devices exist in the range from 0 to 127. Each
BACnet MS/TP device periodically looks for other devices (sends Poll for Master
message) with addresses from its own address, plus one, to the next known address
(wrapping to 0 after 127).
Performance gains can be made on a BACnet MS/TP network by not leaving any gaps in
MAC address and setting the MS/TP Max Master parameter of the device with the
highest MAC address to a value equal to its MAC address. The downside to setting the
MS/TP Max Master to a value less than 127 is, if new devices are added to the network
with addresses above the Max Master value, they won't be discovered or added to the
network.
NOTES
•
Changing the MS/TP Max Master requires restarting the thermostat. When the
installer exits the configuration settings after making changes to the BACnet
settings, there is a prompt to either cancel those settings or save the new settings,
which forces a thermostat reset
•
The Max Master parameter should be set to a value equal to or greater than the
MS/TP MAC Address.
This setting is not displayed if BACnet is disabled
MSTP BAUD RATE—Set the baud rate for the BACnet MS/TP communications to one of
the following values: 9600, 19.2K (19200), 38.4K (38400), 76.8K (76800) or 115k
(115200). The BACnet MS/TP baud rate must be set to match the other devices on the
BACnet MS/TP network.
NOTE Changing the MS/TP baud rate requires restarting the thermostat. When the
installer exits the configuration settings after making changes to the BACnet settings,
there is a prompt to either cancel those settings or save the new setting, which forces a
thermostat reset.
This setting is not be displayed if BACnet is disabled.
Carrier Connect™ Wi-Fi Thermostat 33CONNECTSTAT43FX
Installation Guide
40
Default/Range
D: NO (disabled)
R: YES (enabled)
NO (disabled)
D: 127
R: 1 to 127
D: 76.8K
R: 9600
19.2K (19200)
38.4K (38400)
76.8K (76800)
115k (115200).
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