Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 247

APPENDIX F — BACNET COMMUNICATION OPTION (CONT)
Configuring the UPC Open Controller's Properties
The UPC Open Element Comm Stat and ComfortLink controls
must be set to the same CCN Address (Element) number and
CCN Bus number. The factory default settings for CCN Ele-
ment and CCN Bus number are 1 and 0 respectively.
If modifications to the default Element and Bus number are re-
quired, both the ComfortLink and UPC Open Element Comm
Stat configurations must be changed.
The following configurations are used to set the CCN Address
and Bus number in the ComfortLink controls. These configura-
tions can be changed using the ComfortLink Navigator™ dis-
play or handheld device.
Configuration→IAQ→CCN→CCN.A (CCN Address)
Configuration→IAQ→CCN→CCN.B (CCN Bus Number)
The following configurations are used to set the CCN Address
and Bus Number in the UPC Open controller. These configura-
tions can be changed using the accessory BACview
Navigation: BACview→CCN
Home: Element Comm Stat
Element: 1
Bus: 0
LED
Lights when power is being supplied to the controller. The UPC Open controller is protected by internal solid-state polyswitches on the
Power incoming power and network connections. These polyswitches are not replaceable and will reset themselves if the condition that
caused the fault returns to normal.
Rx Lights when the controller receives data from the network segment; there is an Rx LED for Ports 1 and 2.
Tx
Lights when the controller transmits data to the network segment; there is an Tx LED for Ports 1 and 2.
Run
Lights based on controller status. See Table O.
Error Lights based on controller status. See Table O.
Table O — Run and Error LEDs Controller and Network Status Indication
RUN LED
2 flashes per second Off
2 flashes per second 2 flashes, alternating with Run LED
2 flashes per second 3 flashes, then off
2 flashes per second 1 flash per second
2 flashes per second On
5 flashes per second On
5 flashes per second Off
7 flashes per second 7 flashes per second, alternating with Run LED
14 flashes per second 14 flashes per second, alternating with Run LED
display.
6
Table N — LED Status Indicators
ERROR LED
247
Troubleshooting
If there are problems wiring or addressing the UPC Open con-
troller, contact Carrier Technical Support.
COMMUNICATION LEDS
The LEDs indicate if the controller is communicating with the
devices on the network. See Tables N and O. The LEDs should
reflect communication traffic based on the baud rate set. The
higher the baud rate, the more solid the LEDs become. See
Fig. H for location of LEDs on UPC Open module.
REPLACING THE UPC OPEN BATTERY
The UPC Open controller's 10-year lithium CR2032 battery
provides a minimum of 10,000 hours of data retention during
power outages.
IMPORTANT: Power must be ON to the UPC Open when
replacing the battery, or the date, time, and trend data will
be lost.
Remove the battery from the controller, making note of the bat-
tery's polarity. Insert the new battery, matching the battery's po-
larity with the polarity indicated on the UPC Open controller.
STATUS
Normal
5-minute auto-restart delay after system error
Controller has just been formatted
Controller is alone on the network
Exec halted after frequent system errors or control programs halted
Exec start-up aborted, Boot is running
Firmware transfer in progress, Boot is running
10-second recovery period after brownout
Brownout
STATUS