Daikin EWAP460MBYN Сервис мануал онлайн [131/452] 524349

Daikin EWAP460MBYN Сервис мануал онлайн [131/452] 524349
ESIE 05-07 Wiring Layout
Part 1 – System Outline 1–119
3
1
4
5
Network hardware
overview
The Daikin BMS option makes it possible to connect the Daikin chillers to a larger control system. Two
different protocols can be used: Modbus and BACnet. The necessary tools for this communication are
the Gateway and the address cards.
For information about the BMS functions refer to the corresponding chapters. For detailed information
refer to the Service Manual "BMS option for Daikin water chillers".
External connections setup
Two different setups can be used to connect units to a BMS-system through a BMS gateway.
P 1) Multidrop: The gateway can be connected to the BMS making use of the RS485 connection
P Gateway used for modbus gateway: EKBMSMBA
P Address card EKAC200A should be used in each unit.
P When A DICN (master / slave) is connected to a BMS system, you only require an address card in
the master unit. When you require a full read-out of all parameters from the slave units, then all
slaves should have an address card connected to the gateway.
Unit 1 Unit 2
Unit 3 Unit ..
Modbus gateway
Max: 16 address cards
per Gateway for
Modbus-Jbus
RS485 protocol
BMS system
BMS
Water supply
lights
elevators
Fig 3.Multidrop for Modbus
ESIE05-07.book Page 119 Wednesday, October 11, 2006 10:42 AM

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