7 Gateways for building management systems
HARC-BX E
TCGB0106 rev.0 - 12/2014
686686
SVNT 
number
Unit 
number
Variable name Type
LONMARK 
SNVT No.
Description Condition Note
48 3 nvoOnOff_3 SNVT_state 83
ON/OFF state and 
alarm notication
32 bits: 
bit 0: 0 (STOP)/1 (RUN) 
bit 1: 0 (Normal) /1 (Alarm)
Approxi-
mate up-
date time of 
80 sec.
49 3 nvoMode_3
SNVT_
hvac_mode
108
Operation mode set-
ting
1 byte:  
1 = HVAC_HEAT (Heating) 
3 = HVAC_COOL (Cooling) 
5 = HVAC_PRE_COOL 
(Dehumidication) 
9 = HVAC_FAN_ONLY 
(Ventilation)
50 3
nvoSet-
Point_3
SNVT_
temp_p
105
Temperature reading 
setting
2 Bytes: 1700 ~ 3000 = 17 
~ 30 ºC
51 3
nvo-
FanSpeed_3
SNVT_
switch
95 Fan speed setting
Byte 1:  Value 1: Low, 
Value 2: Middle, 
Value 3: High
Byte 2: State 0 (Fixed)
52 3 nvoLouver_3
SNVT_
switch
95 Louver setting
Byte 1: Value  0: 20, 1: 25, 2: 
30, 3: 35, 4: 
45, 5: 55, 6: 
70, 7: Auto 
Byte 2: State 0 (Fixed)
53 3
nvoAlarmDe-
scr_3
SNVT_str_
asc
36 Alarm description
31 Bytes:  First 2 byte alarm 
description  
3rd byte 0.
54 3
nvoIn-
letTemp_3
SNVT_
temp_p
105
Indoor temperature 
reading
2 Bytes: -6200 ~ 12700 = 
-62 ~ 127 ºC
55 3
nvoOut-
letTemp_3
SNVT_
temp_p
105
Outdoor temperature 
reading
2 Bytes: -6200 ~ 12700 = 
-62 ~ 127 ºC
56 Outdoor
nvoAmbient-
Temp
SNVT_
temp_p
105
Temperature reading 
setting
2 Bytes: -6200 ~ 12700 = 
-62 ~ 127 ºC
57 Outdoor nviAllOnOff
SNVT_
switch
95 On/Off order
Byte 1: Value 0 (Fixed)  
Byte 2:  State 0 = STOP 
State 1 = RUN
58
nciMaxSend-
Time
107
The use of 
standard 
values is 
recom-
mended (do 
not change)
59
nciMinSend-
Time
107
60 nciPwrUp 107
HARC-BX(B) XIF le variables list