Bacnet Interface - Hitachi PC-ARF Technical Catalogue

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2 Control solutions

Great control possibilities

2.2.4.4 BACNET interface

The integration of HITACHI systems into a BACNET installation can be carried out by using a double gateway system:

HITACHI MODBUS gateway: HC-A(8/64)MB, PSC-A160WEB1 or CSNET Manager with HC-A64NET which provide

HLINK data into a MODBUS protocol.

Standard MODBUS-BACNET gateway available in the market which transfers MODBUS data into BACNET data.

There are wide several solutions available in the market which should allow the transfer of MODBUS collected data by

HITACHI gateways into BACNET data. Anyway, HITACHI recommends the solution offered by Intesis Software company

that offers 6 possible devices available for such applications, which are different in terms of:

No. of points (parameters) available: 100, 500, 1000.

Type of MODBUS channel: RTU (only with HC-A(8/64)MB) or TCP (for all the options).

BACNET-MODBUS

Option 1: Gateway interfaces to MODBUS systems (HC-A(8/64)MB)

Easy integration of HITACHI Air Conditioning installations to MODBUS BMS protocol.

HC-A8MB: max. 8 indoor units.

HC-A64MB: max. 64 indoor units.

Option 2: CSNET WEB hardware interface (PSC-A160WEB1)

This option allows to take advantage of the CSNET WEB functionality.

Option 3: CSNET Manager and its H-LINK gateway (HC-A64NET)

This option allows to take profit of the great CSNET Manager functionality, connecting it to its HC-A64NET gateway.

(*): Using CSNET Manager with other CSNET Managers or with CSNET WEB hardware (PSC-A160WEB1) the maximum

number of controllable indoor units is increased up to 1280 indoor units.

TCGB0106 rev.0 - 12/2014

HC-A(8/64)MB

PSC-A160WEB1

CSNET MANAGER

Up to (8/64)

indoor units

Up to 640 (160x4)

indoor units

Up to 512 (64x8)

indoor units (*)