PMML0175A-rev.1 - 6/2008
HARC-MODBUS - xxxxxxxxxxxxxxxx
5
English
HARC-MODBUS - Installation Manual
3. Specifications
Hardware Specifications
Item
Specifications
Power supply
1~230V ±10% 50Hz
Consumption
25W (maximum)
Outer dimensions
Width: 143mm, Depth: 302mm, Height: 76mm
Weight
1.75kg
Assembling conditions
Indoors (in a control panel or desktop)
Ambient temperature
0~40°C
Humidity
20~85% (Without condensation)
MODBUS - Communication with upper system
Item
Specifications
K5
Serial Port RS485 (3 Pins connector) - MODBUS Protocol
Communication line
Twisted pair cable. Polarity
Communicatrion system
Half-duplex, multipoint serial connection
Communication method
Non parity or odd/even parity selection. Data lenght: 8 bits (see chapter 5)
Baud rate transmission
19200/9600 Baud (see chapter 5)
Length
max. 1200m according EIA-485
H-LINK - Communication with units
Item
Specifications
Communication with
HITACHI PACKAGED/CHILLER
Communication line
Twisted pair shielded cable, non polarity
Communications system
Half-duplex
Communication method
Asynchronous
Speed of transmission
9600 Bauds
Length of wiring
1000m maximum (total length of HLINK I/O bus)
Maximum number of
HARC MODBUS
8 HARC-MODBUS/H-LINK SYSTEM (PACKAGED)
1 HARC-MODBUS/H-LINK SYSTEM (CHILLER)
Attention::
HARC-MODBUS cannot operate Indoor Units without any Remote Control Switch connected.
Содержание HARC-MODBUS
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