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)
Summary of Contents for YLUA0078
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