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JOHNSON CONTROLS
196
FORM 150.67-NM2 (209)
Maintenance
Chiller data that can be read and modi
fi
ed using speci
fi
c Modbus Register Addresses; and the data associated with
the addresses, is outlined in the following description:
SERIAL COMMUNICATION ANALOG VALUE DATA
This data can be read and modi
fi
ed using a BACnet or Modbus network connection. The Modbus Register Address
for these points is 1025 + AV #.
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 modi
fi
ed using a BACnet or Modbus network connection. The Modbus Register Address
for these points is 1537 + BV #.
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 network connection and can NOT be modi
fi
ed using this connection.
The Modbus Register Address for these points is 513 + AI #.
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)
11
S1_DEF_TEMP
SYS 1 DEFROST TEMPERATURE (HP ONLY)
12
S1_EEV_OUT
SYS 1 EEV OUTPUT % (EEV ONLY)
13
S1_AR_TIMER
SYS 1 ANTI-RECYCLE TIMER
14
AC_TIMER
ANTI-COINCIDENT TIMER
15
S2_SUCT_TEMP
SYS 2 SUCTION TEMPERATURE (EEV AND COND UNIT ONLY)
16
S2_RUN_TIME
SYS 2 RUN TIME (SECONDS)
17
S2_SUCT_PR
SYS 2 SUCTION PRESSURE
Continued on next page
Содержание YCAL0019
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Страница 65: ...FORM 150 67 NM2 209 65 JOHNSON CONTROLS 5 5 CONNECTION WIRING DIAGRAM CON T LD12703B...
Страница 67: ...FORM 150 67 NM2 209 67 JOHNSON CONTROLS 5 5 CONNECTION WIRING DIAGRAM CON T LD12697B...