JOHNSON CONTROLS
152
FORM 100.50-NOM12
ISSUE DATE: 04/02/2019
SECTION 6 – USER INTERFACE CONTROL CENTER
BACNET
NAME
USER INTERFACE
NAME
READ/
WRITE
BACNET
OBJECT
TYPE AND
INSTANCE
MODBUS
REGISTER
ADDRESS
POINTS LIST DESCRIPTION
RET_AIR_
ENTH
Return Air Enthalpy R AI38 551 Displays The Actual Ra Enthalpy (Btu/Lb)
RET_AIR_
HUMD
Return Air Humidity R AI39 552
Displays The Actual Ra Relative Humidity
(%)
RET_AIR_
TEMP
Return Air Temp
Current
R AI40 553 Displays The Actual Ra Temp (°F)
RET_FAN_OUT
Exhaust/Return Fan
VFD
R AI41 554
Displays The Output From The Control To
The Exh Or Ret Fan VFD (%)
RET_FAN_
PRES
Return Fan
Pressure Current
R AI42 555
Displays The Actual Pressure That Is Used
To Control The Return Fan Speed ("W.C.)
RET_FAN_
STAT
Return Fan Status R BI52 1333
Displays The Status Of The Return Fan
Run Verication Circuit (0=Stop/Verication
Ckt Open, 1=Run/Verication Ckt Closed)
RST_ENT_BAS
Reset Enthalpy Sp
BAS
R/W AV41 1066
Displays The Ra Enthalpy Sp Which
Causes The Unit To Switch From The
Evap Leaving High Sp To The Evap
Leaving Low Sp
SAT_HIGH_LIM
Suppy Air Temp Hi
Sp
R/W AV26 1051
Displays The Upper Limit For The Supply
Air Temp Sp On A VAV Unit (°F)
SAT_LOW_LIM
Supply Air Temp
Lo Sp
R/W AV27 1052
Displays The Lower Limit For The Supply
Air Temp Sp On A VAV Unit (°F)
SAT_RST_BAS
Supply Air Temp
Reset BAS
R/W AV28 1053
Displays The Analog Input From The
BAS System That Allows The Reset Of
Ther Active Supply Air Temp Sp. 0 Uses
Sat High Sp Amd 5 Uses Sat Low Sp.
"Sat RST BAS" Must Be Enabled In The
Service Menu For This Point To Function
SAT_SUC_
TMP1
Saturated Suct
Temp Ckt 1
R AI43 556
Displays The Saturation Temp Of System
1 Suction Gas Based On System 1 Suction
Press (°F)
SAT_SUC_
TMP2
Saturated Suct
Temp Ckt 2
R AI44 557
Displays The Saturation Temp Of System
2 Suction Gas Based On System 2 Suction
Press (°F)
SAT_SUC_
TMP3
Saturated Suct
Temp Ckt 3 (70-150
Ton Only)
R AI45 558
Displays The Saturation Temp Of System
3 Suction Gas Based On System 3 Suction
Press (°F)
SAT_TEMPER
Supply Air
Tempering Status
R BI53 1334
Displays The Status Of Supply Air
Tempering (On/Off)
SEN/MSC_FLT
Sensor/Misc Fault
Status
R BI54 1335
Displays The Status Of A Sensor Or Misc
Fault (0=No Fault 1=Faulted)
SF_PROV_SW Supply Fan Status R BI55 1336
Displays The Status Of The Supply Fan
Air Proving Circuit (0=Stop Verication/Ckt
Open 1=Run Verication/Ckt Closed)
SF_SPD_H_
SAT
Fan Speed Sp For
Hi Supply Air Temp
R/W AV29 1054
Displays The Supply Fan Speed Sp Used
For Switching To The High Supply Air
Temp Sp
SF_SPD_L_
SAT
Fan Speed Sp For
Lo Supply Air Temp
R/W AV30 1055
Displays The Supply Fan Speed Sp Used
For Switching To The Low Supply Air Temp
Sp
TABLE 53 – BACNET MS/TP, MODBUS, BACNET IP (SEE NOTES AT END OF TABLE) (CONT'D)