Operation
BAS-SVX08D-E424
Table 6 - Data Point List for RTAC chillers (Public Extension),Tracer CH530 controller.
Data Type Function
Modbus
Index
Offset Point Description Unit
Binary
Outputs
5/15
00001 0 Chiller Enable/Disable Command bit
00002 1 Chiller Mode bit
Analog
Outputs
6/16
40001 0 Copy of function 5/15 binary points bitfield
40002 1 Chilled Water Setpoint Temperature
40003 2 Current Limit Setpoint Percentage
Binary
Inputs
2 10002 1 Chiler Running Status bit
Analog
Inputs
4
30001 0 Copy of function 2 binary points bitfield
30002 1 Active Chilled Water Setpoint Temperature
30003 2 Actual Capacity (Percent Run Load Amps) Percentage
30004 3 Active Current Limit Setpoint Percentage
30005 4 Evaporator Leaving Water Temperature Temperature
30006 5 Evaporator Entering Water Temperature Temperature
30009 8 Chiller Status (See Appendix) bitfield
30010 9 Compressor Running Outputs (See Appendix) bitfield
30011 10 Air Flow Circuit 1 (LSB) Circuit 2 (MSB) Percentage
30012 11 Outdoor Air Temperature Temperature
30013 12 Evaporator Refrigerant Pressure Circuit 1 Pressure
30014 13 Evaporator Refrigerant Pressure Circuit 2 Pressure
30015 14 Evaporator Refrigerant Temperature Circuit 1 Temperature
30016 15 Evaporator Refrigerant Temperature Circuit 2 Temperature
30017 16 Condenser Refrigerant Pressure 1 Pressure
30018 17 Condenser Refrigerant Pressure 2 Pressure
30019 18 Condenser Refrigerant Temperature 1 Temperature
30020 19 Condenser Refrigerant Temperature 2 Temperature
30021-30022 20-21 Starts - Compressor A None
30023-30024 22-23 Run Time - Compressor A Hours
30025-30026 24-25 Starts - Compressor B None
30027-30028 26-27 Run Time - Compressor B Hours
30029-30030 28-29 Starts - Compressor C None
30031-30032 30-31 Run Time - Compressor C Hours
30033-30034 32-33 Starts - Compressor D None
30035-30036 34-35 Run Time - Compressor D Hours