Hitachi PC-ARF Technical Catalogue page 698

7 Gateways for building management systems
HARC-BX E

HARC-BX(B)
The HARC-BX(B) is a LonWorks interface designed for cases that require a more detailed control of the units, in addition
to complete unit operation monitoring functions.
This interface allows us to:
• Control up to 32 indoor units and 8 outdoor units
• Connect up to 8 interfaces per H-Link
a. HARC-BX(B) communication mode:
The following variables can be controlled and monitored in each of the interface's 8 PCBs:
Remote
Control
b. XIF file variables
SVNT Unit
Variable name
number number
0 0 nviOnOff_0
1 0 nviMode_0
nviSet-
2 0
Point_0
nvi-
3 0
FanSpeed_0
4 0 nviLouver_0
5 0 nviProtect_0
682 682
TCGB0106 rev.0 - 12/2014
Network variables Version 1.0A
nviOnOff_n
nviMode_n
nviSetPoint_n
nviFanSpeed_n
14 Points/Unit
nviLouvre_n
2 Common points
nviProhibit_n
nviAllOnOff
Configuration properties
nciMaxSendTime
nciMinSendTime
x4 (each PCB)
LONMARK
Type
SNVT No.
SNVT_
95
switch
SNVT_
108
hvac_mode
SNVT_
105
temp_p
SNVT_
95
switch
SNVT_
95
switch
SNVT_
95
switch
nvoOnOff_n
nvoMode_n
nvoSetPoint_n
nvoFanSpeed_n
nvoLouvre_n
nvoAlarm_n
nvoInletTemp_n
nvoOutletTemp_n
nvoAmbientTemp
Description
Byte 1: Value 0 (Fixed)
On/Off order Byte 2: State 0 = STOP
1 byte:
1 = HVAC_HEAT (Heating)
3 = HVAC_COOL (Cooling)
Operation mode set-
5 = HVAC_PRE_COOL
ting
(Dehumidification)
9 = HVAC_FAN_ONLY
(Ventilation)
2 Bytes: 1700 ~ 3000 = 17
Temperature setting
~ 30 ºC
Byte 1: Value 1: Low,
Fan speed setting
Byte 2: State 0 (Fixed)
Byte 1: Value 0: 20, 1: 25, 2:
Louver setting
Byte 2: State 0 (Fixed)
Byte 1: Value 0 (Fixed)
Byte 2: State 0: RCS ena-
Remote control order
enabled
Monitor
Condition Note
State 1 = RUN
Allow an in-
terval of at
least 5 sec.
between 2
Value 2: Middle,
consecutive
Value 3: High
orders to
any unit on
a H-Link
30, 3: 35, 4:
45, 5: 55, 6:
70, 7: Auto
bled
State 1: RCS disa-
bled