JOHNSON CONTROLS
161
SECTION 10 – MAINTENANCE
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
10
Serial Communication Binary 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 1281 + BI #.
TABLE 47 - SERIAL COMMUNICATION BINARY INPUT DATA
BI BACNET NAME BINARY INPUT DESCRIPTION
1 S1_ALARM SYS 1 Alarm
2 S2_ALARM SYS 2 Alarm
3 EVAP_HTR Evaporator Heater Status
4 EVAP_PUMP Evaporator Pump Status
5 SI_C1_RUN SYS Comp 1 Run
6 S2_C1_RUN SYS 2 Comp 1 Run
7 S1_LLSV SYS 1 Liquid Line Solenoid Valve
8 S1_MODE_SV SYS 1 Mode Solenoid Valve (HP Only)
9 S1_HGBV SYS 1 Hot Gas Bypass Valve
10 S1_BHS Bivalent Heat Source (HP Only)
11 S1_C2_RUN SYS 1 Comp 2 Run
12 S2_C2_RUN SYS 2 Comp 2 Run
13 S2_LLSV SYS 2 Liquid Line Solenoid Valve
14 S2_MODE_SV SYS 2 Mode Solenoid Valve (HP Only)
15 LEAD_SYS Lead System (0 = SYS 1, 1 = SYS 2)
16 S1_C3_RUN SYS 1 Comp 3 Run
17 S2_C3_RUN SYS 2 Comp 3 Run
18 CH_LIQ_TYPE Chilled Liquid Type (0 = Water, 1 = Glycol)
19 AMB_MODE Ambient Control Mode (O = STD AMB, 1 = LOW AMB)
20 CNTL_MODE_ Local / Remote Control Mode (0 = Local, 1 = Remote)
21 DATA_UNIT Units (0 = Imperial, 1 = SI)
22 AUTO_LL Lead / Lag Control Mode (0 = Manual, 1 = Auto)
To Next Page
Loading...
