Dap4 LonWorks Interface Instructions
Document number 600-000-966 Ver. 3
10
Description
Read/
Write
Variable Name
Data
Type
LONworks
SNVT
Custom alarm #4 -Optional
alarm. External alarm input
required. Factory programmed
custom message required
R
Cust_msg_Sw4
D
Alarm_2 . Bit15
83
Humidifier stopped due to
custom alarm switch
R
HumSw_Inhibit
D
Alarm_3 . Bit0
83
Heat inhibited due to custom
switch alarm condition
R
Heat_inhibit
D
Alarm_3 . Bit1
83
Reheat and humidification
inhibited from operation
R
Rht_Hum_inhibit
D
Alarm_3 . Bit2
83
Temperature of discharge air
below alarm set point
R
Disch_Tmp_lo_alm
D
Alarm_3 . Bit3
83
Manual override: Check bypass
switches - Standard alarm.
Manual override switch is on
R
Override_Alm
D
Alarm_3 . Bit4
83
High condensation from digital
input
R
Condensation_alm
D
Alarm_3 . Bit5
83
Unit in standby, all functions
held off - Optional alarm.
Control input signal required
Factory setting required
R
Unit_In_Standby
D
Alarm_3 . Bit6
83
Cooling operation inhibited by
BMS
R/W BMS_Cooling_inhibit D nvoBMSCool_In
/
nviBMSCool_In
95
Heat inhibited due to bms
R/W
BMS_Heat_inhibit
D
nvoBMSHeat_In /
nviBMSHeat_In
95
Humidifier operation inhibited by
BMS
R/W BMS_Humidifier_inhibit D nvoBMSHum_In
/
nviBMSHum_In
95
Inhibit fan by bms
R/W
Fan_Inhibit_bms
D
nvoBMSFan_In /
nviBMSFan_In
95
Supervisor (BMS) On-Off. Show
the state OFFbyBMS in main
mask (1: Off; 0: On)
R/W Superv_Off
D nvoSuperv_Off
/
nviSuperv_Off
95
BMS-heartbeat is to confirm the
communication with BMS.
This variable must change at
least once every 5 minutes or
unit will revert on mode if it is
command to off
Write
only
BMS_Heartbeat D
nviBMS_Heartbeat
95