Setting Up The Uc400 Controller On A Bacnet Link; Setting The Address - Trane Tracer Uc

Wiring Installation

Setting Up the UC400 Controller on a BACnet Link

Observe the following when setting up the UC400 controller on a BACnet link.
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Setting the Address

The three (3) rotary address dials on the UC400 serve one or two purposes depending upon the
network: they are always used for the MAC Address, which is sometimes all or part of the BACnet
Device ID.
MAC Address
The MAC Address is required by the RS-485 communication protocol on which BACnet operates.
Valid MAC addresses are 001 to 127 for BACnet.
Important: Each device on the link must have a unique MAC Address/Device ID. A duplicate
BACnet Device ID
The BACnet Device ID is required by the BACnet network. Each device must have a unique number
from 001 to 4094302.
18
Use 18 AWG shielded communication wire for BACnet MS/TP installations.
Limit BACnet MS/TP wiring links to 4,000 ft. There is a maximum of 60 devices per link (without
a repeater).
Note: Two (2) BACnet links are available on the Tracer SC.
Connect the BACnet link to the UC400 controller terminals
labeled Link as shown on the right. Incoming wires can be
connected to the first two terminals, and the outgoing
wires can be connected to the second set of terminals, so
there is only one wire per termination. For more details,
refer to the Unit Controller Wiring for the Tracer SC™
System Controller Wiring Guide (BAS-SVN03).
Use a 1/8 inch (3.2 mm)
flathead screwdriver to
set rotary address dials.
These dials rotate in
either direction.
address or a 000 address setting will interrupt communications and cause the Tracer
SC device installation process to fail.
IM C
24
VAC
XFRM
AO1 AO2
UI 1 UI 2
BI 4 BI 5
1
ADDRESS
BO1 BO2 BO3
0
0 0
x100 x10 x1
RELAYS TRIAC SUPPLY
BO1 BO2 BO3
NO NC C NO NC C NO NC C A
P 1 P 2
LINK IMC
TX
RX
SERVI C E
SERVICE TOOL
BO4 BO5 BO6 BO7 BO8 BO9
CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS
TRIACS
B B A
BO4 BO5 BO6 BO7 BO8 BO9
VAV-SVX07B-EN