Trane TCAA Series - Page 53

ARTC-SVX013A-EN
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Table 15. BMS BO Objects: Status, alarms, and faults (continued)
Tag Name Array
Object
Type
Instance
Metasys N2
Address
Modbus
Register
EIP Read Tag
Name
EIP Write Tag Name
Chiller: Barrel Isolation Circuit 1 ChillerStatus BO 293 185 10309
ChillerStatus[8] WR_ChillerStatus[8]
Chiller: Barrel Isolation Circuit 2 ChillerStatus BO 294 186 10310
ChillerStatus[9] WR_ChillerStatus[9]
Chiller: Barrel Isolation Circuit 3 ChillerStatus BO 295 187 10311
ChillerStatus[10] WR_ChillerStatus[10]
Chiller: Barrel Isolation Circuit 4 ChillerStatus BO 296 188 10312
ChillerStatus[11] WR_ChillerStatus[11]
Chiller: Adiabatic Cooling Active C1
ChillerStatus BO 297 189 10313
ChillerStatus[12] WR_ChillerStatus[12]
Chiller: Adiabatic Cooling Active C2
ChillerStatus BO 298 190 10314
ChillerStatus[13] WR_ChillerStatus[13]
Chiller: Adiabatic Cooling Active C3
ChillerStatus BO 299 191 10315
ChillerStatus[14] WR_ChillerStatus[14]
Chiller: Adiabatic Cooling Active C4
ChillerStatus BO 300 192 10316
ChillerStatus[15] WR_ChillerStatus[15]
Chiller: Low Noise Mode Active ChillerStatus BO 301 193 10317
ChillerStatus[16] WR_ChillerStatus[16]
Chiller: At Maximum Capacity
ChillerStatus BO 302 194 10318
ChillerStatus[17] WR_ChillerStatus[17]
Chiller: No Compressor Available
ChillerStatus BO 303 195 10319
ChillerStatus[18] WR_ChillerStatus[18]
Chiller: Freeze Protection Active ChillerStatus BO 304 196 10320
ChillerStatus[19] WR_ChillerStatus[19]
Note: Chiller control system provides data for up to 6
compressors.
The BMS Listing has the following characteristics:
• Some of the values like temperatures and pressures
have an implied decimal place; this means that a value
of 450 read from the chiller via BMS interface for Chiller
Outlet Temperature, CHIL_OUT_04, means 45.0 °F (in
imperial configuration).
• Some values are enumerated integers:
– Chiller State:
Figure 25. Chiller state map
– Compressor State:
Figure 26. Compressor state map
– Fan State:
Figure 27. Fan state map
Operating Procedures