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APPENDIX D
Building Interface —
The 30GX,HX chiller can be
interfaced with multi-vendor control systems through 3 levels
of inter-operability using BacLink, DataPort, or DataLink.
BacLink functions as a gateway between a CCN and a BACnet
system to facilitate the passing of data from the CCN to
BACnet. The Carrier DataPort is an interface device that
allows other HVAC control systems to “read only” values in
system elements connected to a CCN communication bus. The
Carrier DataLink is an interface device that allows other HVAC
control systems to read and change (“read/write”) values in
system elements connected to a CCN bus. Both DataPort and
DataLink request data from a specified CCN system element
and translate this data into ASCII characters off network. Infor-
mation from the 30GX,HX chiller control to support interface
are listed in the following tables.
BacLink Object Definition
CCN TABLE NAME
DESCRIPTION
POINT
ACCESS
A_UNIT_1
Control Mode
Run Status
Occupied
CCN Enable
CCN Chiller Start/Stop
Alarm State
Current Alarm 1
Current Alarm 2
Current Alarm 3
Current Alarm 4
Current Alarm 5
Active Demand Limit
Percent Total Capacity
Control Point
Entering Fluid Temp
Leaving Fluid Temp
Emergency Stop
Heat/Cool Status
MODE
STATUS
OCC
ENA_CCN
CHIL_S_S
ALM
alarm_1
alarm_2
alarm_3
alarm_4
alarm_5
DEM_LIM
CAP_T
CTRL_PNT
EWT
LWT
EMSTOP
HEATCOOL
RO
RO
RO
RW
RW
RO
RO
RO
RO
RO
RO
RW
RO
RW
RO
RO
RW
RO
CIRCA_AN
Percent Total Capacity
Percent Available Capacity
Discharge Pressure
Suction Pressure
A1 Oil Pressure
A2 Oil Pressure
Saturated Condensing Temp
Saturated Suction Temp
CAPA_T
CAPA_A
DP_A
SP_A
OP_A1
OP_A2
TMP_SCTA
TMP_SSTA
RO
RO
RO
RO
RO
RO
RO
RO
CIRCA_DIO
Compressor A1
Compressor A2
Loader A1
Loader A2
Min Load Valve, Valve A
K_A1_RLY
K_A2_RLY
LOADR_A1
LOADR_A2
MLV_A
RO
RO
RO
RO
RO
CIRCB_AN
Percent Total Capacity
Percent Available Capacity
Discharge Pressure
Suction Pressure
B1 Oil Pressure
B2 Oil Pressure
Saturated Condensing Temp
Saturated Suction Temp
CAPB_T
CAPB_A
DP_B
SP_B
OP_B1
OP_B2
TMP_SCTB
TMP_SSTB
RO
RO
RO
RO
RO
RO
RO
RO
CIRB_DIO
Compressor B1
Compressor B2
Loader B1
Loader B2
Min Load Valve, Valve B
K_B1_RLY
K_B2_RLY
LOADR_B1
LOADR_B2
MLV_B
RO
RO
RO
RO
RO
UNIT_2
Cooler Entering Fluid
Cooler Leaving Fluid
Condenser Entering Fluid
Condenser Leaving Fluid
4 to 20 mA Reset
COOL_EWT
COOL_LWT
COND_EWT
COND_LWT
RST_MA
RO
RO
RO
RO
RO
LEGEND
RO
— Read Only
RW
— Read/Write