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Modbus 485 and Modbus IP Protocols - Thermal Management Products
Liebert
®
IntelliSlot
®
Modbus/BACnet IP 54
System Operations
Return Fluid Temperature 30491 — 1 10
Units: deg C
Int16
1, 2
Return Fluid Temperature 30492 — 1 10
Units: deg F
Int16
1, 2
Supply Fluid Temperature 30493 — 1 10
Units: deg C
Int16
1, 2
Supply Fluid Temperature 30494 — 1 10
Units: deg F
Int16
1, 2
Actual Supply Fluid Temp Set Point 30495 — 1 10
Units: deg C
Int16
1, 2
Actual Supply Fluid Temp Set Point 30496 — 1 10
Units: deg F
Int16
1, 2
Condenser Inlet Water Temperature 30497 — 1 10
Units: deg C
Int16
1, 2
Condenser Inlet Water Temperature 30498 — 1 10
Units: deg F
Int16
1, 2
Condenser Outlet Water Temperature 30499 — 1 10
Units: deg C
Int16
1, 2
Condenser Outlet Water Temperature 30500 — 1 10
Units: deg F
Int16
1, 2
Supply Heated Water Temp Set Point 30501 40501 1 —
Units: deg C
Int16
1, 2
Supply Heated Water Temp Set Point 30502 40502 1 —
Units: deg F
Int16
1, 2
Free Cooling Utilization 30503 — 1 —
Units: %
Uint16
1, 2
Reheat Utilization 30504 — 1 —
Units: %
Uint16
1, 2
Compressor Utilization 30505 — 1 —
Units: %
Uint16
1, 2
Ambient Air Temperature 30506 — 1 10
Units: deg C
Int16
1, 2
Ambient Air Temperature 30507 — 1 10
Units: deg F
Int16
1, 2
Compressor Economizer Utilization 30508 — 1 —
Units: %
Uint16
1, 2
Condenser Adiabatic Cooling Utilization 30509 — 1 —
Units: %
Uint16
1, 2
Pump 1 State 30510 — 1 —
0 = off
1 = on
1, 2
Pump 2 State 30511 — 1 —
0 = off
1 = on
1, 2
System Events
System Event Acknowledge/Reset — 40515 1 —
2 = Reset
4 = Acknowledge
1, 2
Time
System Date and Time 39998 49998 2 — Secs since Epoch (UTC) 1, 2
If the Scale column has a value for a Data Description, divide the Modbus value by the value in the Scale column to get the scaled value.
Table 15 Liebert HPC
™
(Chiller) - Input and Holding (continued)
Controller Liebert iCOM
®
v4
Data Label
Input Holding
# of
Reg Scale Notes/Units
Extra
Notes