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JOHNSON CONTROLS
159
SECTION 10 – MAINTENANCE
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
10
Serial Communication Analog Value Data
This data can be read and modified using a BACnet
or Modbus network connection. The Modbus Register
Address for these points is 1025 + AV #.
TABLE 44 -
SERIAL COMMUNICATION ANALOG VALUE DATA
AV
BACNET NAME
ANALOG VALUE DESCRIPTION
1
REM_SETP
Setpoint
Cooling Setpoint (HP Only), 99 = Auto
(40
°
F - 70
°
F)
2
SP_REM_SP_S1
SYS 1 Setpoint (Suction Pressure Control)
3
LOAD_LIMIT
Load Limit Stage (0, 1, 2)
4
REM_CR
Cooling Range (DAT Mode Only)
5
SP_REM_SP_S2
SYS 2 Setpoint (Suction Pressure Control)
6
REM_SP_HEAT
Heating Setpoint (HP Only) 99 = Auto (95
°
F - 122
°
F)
7
HP_MODE
Mode (HP Only) (0 = Panel, 1 = Cooling, 2 = Heating)
Serial Communication Binary Value Data
This data can be read and modified using a BACnet
or Modbus network connection. The Modbus Register
Address for these points is 1537 + BV #.
TABLE 45 -
SERIAL COMMUNICATION BINARY VALUE DATA
BV
BACNET NAME
BINARY VALUE DESCRIPTION
1
START_STOP
Start / Stop Command
2
SS_SYS1
SYS 1 Start / Stop Command (Suction Pressure Control)
3
SS_SYS2
SYS 2 Start / Stop Command (Suction Pressure Control)
Serial Communication Analog Input Data
This data can be read using a BACnet or Modbus net-
work connection and can NOT be modified using this
connection. The Modbus Register Address for these
points is 513 + AI #.
TABLE 46 -
SERIAL COMMUNICATION ANALOG INPUT DATA
AI
BACNET NAME
ANALOG INPUT DESCRIPTION
1
LCHLT
Leaving Chilled Liquid Temp
2
RCHLT
Return Chilled Liquid Temp
3
DAT
Discharge Air Temp (Cond Unit Only)
4
S1_SUCT_TEMP
SYS 1 Suction Temperature (EEV And Cond Unit Only)
5
OAT
Ambient Air Temperature
6
S1_SUCT_SH
SYS 1 Suction Superheat (EEV Only)
7
S1_RUN_TIME
SYS 1 Run Time (Seconds)
8
S1_SUCT_PR
SYS 1 Suction Pressure
9
S1_DSCH_PR
SYS 1 Discharge Pressure
10
S1_CIR_TEMP
SYS 1 Cooler Inlet Refrigerant Temperature (R-407C Only)
Summary of Contents for YLUA0078
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