Trane BCHE - Installation - Controls; Power Supply

BCX-SVX002A-EN
67
Figure 58. BACnet device ID
BACnet networks without a Tracer
®
SC system
controller
On BACnet networks without a Tracer
®
SC system
controller, the Device ID can be assigned one of two ways:
• It can be the same number as the MAC Address,
determined by the rotary address dials on the UC400-B
controller. For example, if the rotary address dials are
set to 042, both the MAC Address and the BACnet
Device ID are 042.
• It can be soft set using the Tracer
®
TU service tool. If
the BACnet Device ID is set using the Tracer
®
TU
service tool, the rotary address dials only affect the
MAC Address, they do not affect the BACnet Device ID.
BACnet networks with a Tracer
®
SC system controller
On BACnet networks with a Tracer
®
SC system controller,
the Device ID for the UC400-B controller is always soft set
by the system controller using the following scheme
illustrated below.
Note: The BACnet Device ID is displayed as the Software
Device ID on the Tracer
®
TU Controller Settings
page in the Protocol group.
Figure 59. Example of BACnet link wiring with multiple UC400-B controllers
+
+
24VDC
GND
Comm +
Comm -
B
A
Cn
e
t
+ -
+ -
IMC
+
-
G
n
d
2
4
VDC
1
2
34
1
23
4
1
2 3
4
1
2 3
4
24VDC
GND
Comm +
Comm -
BACn
e
t
+ - + -
IMC
+
-
G
n
d24VDC
1
2
3
4
1
23
4
1
2 3
4
1
2 3
4
24VDC
GND
Comm +
Comm -
BACnet
+ - + -
IMC
+
-
G
n
d
2
4VDC
1
2
3
4
1
23
4
1
2 3
4
1
2
3
4
Tracer SC UC400-B
Zone Sensor
Trane
BACnet
Terminator
Zone Sensor Zone Sensor
UC400-B UC400-B
Power Supply
Read all of the warnings, cautions, and notices below
before proceeding with this section.
Installation - Controls