Specifications - Hitachi HARC-MODBUS Manual De Instalación Y Funcionamiento

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