Daikin D-BACS Guide

ED 72 - 721
<Preliminary>
Daikin Buildings
Air-conditioning Control System
D-BACS
DESIGN GUIDE

i
Contents1. Introduction ...................................................................viii
1-1 DAIKIN Building Air-conditioning Control System
(D-BACS) Overview ........................................................viii
1-2 Advantages of D-BACS over Automatic Control by
Central System................................................................viii
1-3 How to Use this Document.................................................x
1-4 Safety Precautions .............................................................x
1-5 Open Network Glossary ....................................................xi
Part 1 Outline of D-BACS System .......................... 1
1. D-BACS (DAIKIN Building Air Conditioning Control
System) System Over View.............................................2
1-1 D-BACS System Integrated System Diagram................... 2
2. System Over View............................................................4
2-1 Targeted Project Scale and Map....................................... 4
2-2 Number of Group for Centralized-Control Devices
Connectable with Indoor-Units .......................................... 5
2-3 Control Function of the Devices ........................................ 5
3. List of D-BACS System Equipment................................6
3-1 List of Control System Equipment..................................... 6
3-2 Main Specifications and Functions of the Equipment........ 8
4. List of Control System Equipment and Functions......14
5. Functions of Centralized Controllers...........................15
6. Central Control Equipment Combinations...................22
7. List of Applicable Models of DAIKIN ............................23
Part 2 Fundamental of DIII-NET........................... 25
1. Design of DIII-NET..........................................................26
1-1 Features of DIII-NET ....................................................... 26
2. DIII-NET Design Standard..............................................27
2-1 Terminal Number............................................................. 27
2-2 Detail of Outdoor Unit Terminal No................................. 27
2-3 Connection Method ......................................................... 28
3. Wiring Length.................................................................34
4. Unit and Group...............................................................35
5. Number of Connectable Units.......................................36
5-1 Number of Connectable Units ......................................... 36
5-2 Flow Chart to Determined the Number of Units to
Connected....................................................................... 37
5-3 Number of Units to be Connected [VRV]
(Supplementary Explanation).......................................... 38
5-4 Connection of Devices other than VRV........................... 39

ii
6. Group and Zone..............................................................40
6-1 Definition ......................................................................... 40
6-2 Patterns of Group and Zone............................................ 40
6-3 Group Address Number .................................................. 41
6-4 Setting Group No. for Centralized Control....................... 42
6-5 Zone Address Number .................................................... 47
7. Wiring Specifications of DIII-NET .................................48
8. Combination of Multiple Central Remote Controllers
<DCS302CA61 • DCS301BA61 • DST301BA61>...........49
8-1 Check for Centralized Control Devices in
Simultaneous Use........................................................... 49
8-2 Combination of intelligent Touch Controller and
Central Remote Controller............................................... 51
8-3 Combination of DCS302CA61·DCS301BA61·
DST301BA61 .................................................................. 52
8-4 Sequential Start............................................................... 54
8-5 Under Central Control ..................................................... 54
8-6 Error Code on Intial Setting and Wiring Troubles............ 54
Part 3 Remote Controllers ................................... 55
1. List of Indoor Units with Corresponding Individual
Operation Remote Controllers......................................56
2. Dimensions of Remote Controllers..............................58
2-1 Wired Remote Controller................................................. 58
2-2 Wireless Remote Controller / Receiver ........................... 59
2-3 Simplified Remote Controller........................................... 62
2-4 Remote Controller for Hotel Use ..................................... 62
2-5 Wired Remote Controller with
Weekly Schedule Timer .................................................. 63
2-6 Wired Remote Controller for HRV................................... 63
3. Functions of Remote Controllers .................................64
3-1 Function List.................................................................... 64
3-2 Example of Control by Remote Controller....................... 64
3-3 Remote Controller <BRC1C62>...................................... 65
3-4 Simplified Remote Controller
<BRC2C51 (BRC2A51)>................................................. 68
3-5 Remote Controller for Hotel Use <BRC3A61>................ 69
3-6 Wired Remote Controller with
Weekly Schedule Timer <BRC1D61>............................. 70
3-7 Wireless Remote Controller <BRC4C, 7C, 7E>.............. 72
3-8 Wired Remote Controller for HRV <BRC301B61>.......... 75
4. Various Control by Remote Controller Control...........76
4-1 Group Control.................................................................. 76
4-2 Forced OFF or ON/OFF Control...................................... 76
4-3 2 Remote Controllers ...................................................... 77
4-4 Remote Controller Thermostat........................................ 78
4-5 <KRCS01-1A> Remote Sensor....................................... 80

iii
5. Field Setting by Remote Controller ..............................82
5-1 Wired Remote Controller <BRC1C62> ........................... 82
5-2 Wireless Remote Controller <BRC4C, 7C, 7E>.............. 85
5-3 Simplified Remote Controller
<BRC2C51 (BRC2A51)>................................................. 86
5-4 HRV <BRC301B61>........................................................ 88
Part 4 intelligent Touch Controller...................... 91
1. Part Names and Functions............................................92
1-1 Front and Side View........................................................ 92
1-2 Part Names on the Monitoring Screen and
the Functions................................................................... 93
2. System Configuration....................................................99
2-1 System Outline................................................................ 99
2-2 Double intelligent Touch Controllers ............................... 99
3. Specification.................................................................100
3-1 Specification.................................................................. 100
3-2 Dimension ..................................................................... 100
4. Functions......................................................................101
4-1 Functions....................................................................... 101
5. Electric Wiring..............................................................104
5-1 Terminals on the Back of
intelligent Touch Controller............................................ 104
5-2 Points of Installation...................................................... 105
5-3 Wiring for Force Stop Input and for
Electric Power Distribution ............................................ 106
5-4 Connection to Public Telephone Line............................ 107
5-5 Connection to LAN........................................................ 107
5-6 DIII-NET Plus Adaptor Connection................................ 108
5-7 Connection for Unification Adaptor................................ 108
5-8 DII-NET Plus Adaptor.................................................... 109
5-9 Wiring Example for intelligent Touch Controller
(DCS601C51)................................................................ 111
6. Web function.................................................................117
Part 5 Control Devices ....................................... 123
1. <DCS302CA61> Central Remote Controller...............124
1-1 Function......................................................................... 124
1-2 System Configuration.................................................... 125
1-3 Specifications / Dimensions .......................................... 128
1-4 Names and Functions of Operating Part....................... 129
1-5 Description of Functions................................................ 131
1-6 Selection of Control Mode No. ...................................... 139
1-7 Initial Setting.................................................................. 142
1-8 Electric Wiring ............................................................... 143
1-9 Special Function Settings.............................................. 144
1-10 Refreshed Operation..................................................... 145
1-11 Error Diagnosing Function............................................. 146
1-12 Installation ..................................................................... 149

iv
2. <DCS301BA61> Unified ON/OFF Controller ..............150
2-1 Function......................................................................... 150
2-2 System Configuration.................................................... 150
2-3 Specification and Dimension......................................... 151
2-4 Part names and Functions ............................................ 151
2-5 Initial Setting.................................................................. 153
2-6 Electric Wiring ............................................................... 155
2-7 Confirming Operation .................................................... 155
2-8 Installation ..................................................................... 156
3. <DST301BA61> Schedule Timer.................................157
3-1 Function......................................................................... 157
3-2 System Configuration.................................................... 157
3-3 Specification and Dimension......................................... 158
3-4 Part names and Functions (DST301BA61)................... 159
3-5 Initial Setting.................................................................. 161
3-6 Electric Wiring ............................................................... 162
3-7 Installation ..................................................................... 163
3-8 Error Diagnosing Function............................................. 163
Part 6 intelligent Manager ................................. 165
1. intelligent Manager Overview......................................166
1-1 Features ........................................................................ 166
1-2 Specification.................................................................. 176
1-3 Functions....................................................................... 177
2. System Design of intelligent Manager .......................178
2-1 System Configuration of intelligent Manager................. 178
2-2 List of Required Devices for
intelligent Manager System........................................... 178
2-3 Creation of DIII-NET Wiring Diagram............................ 179
2-4 Allocation of Centralized Address ................................. 181
2-5 Points to Note for Design .............................................. 182
2-6 Use with Other Centralized Devices.............................. 183
3. Installation and Electric Wiring...................................184
3-1 Components.................................................................. 184
3-2 Part Name and Function ............................................... 184
3-3 Installation ..................................................................... 186
3-4 “DIII-NET master” setting .............................................. 187
3-5 System Wiring ............................................................... 188
3-6 Electric Wiring Connection ............................................ 189
3-7 Setting group No. for centralized control....................... 192
3-8 Wiring Example ............................................................. 193
Part 7 Interface for Use in BACnet®.................. 199
1. BACnet®Interface........................................................200
1-1 Outline and Features..................................................... 200
1-2 System Outline.............................................................. 200
1-3 System Configuration.................................................... 201
1-4 Specifications ................................................................ 202

v
1-5 Components.................................................................. 202
1-6 Dimensions.................................................................... 202
1-7 BACnet Object List........................................................ 204
1-8 Names and Functions of each Part............................... 205
1-9 Electric Wiring ............................................................... 207
1-10 Functions....................................................................... 212
1-11 Backup Systems for Troubles ....................................... 214
1-12 BMS (Building Management System) ........................... 216
1-13 Adopting “Super Wiring System”................................... 216
2. Daikin's Interface for
Use in BACnet®Agreement ........................................217
3. Wiring Example ............................................................219
3-1 Interface for Use in BACnet®(DMS502B51)................. 219
3-2 Interface for Use in BACnet®(DMS502B51)+
Optional Dlll Board (DAM411B51)................................. 220
3-3 Interface for Use in BACnet®(DMS502B51) with
P.P.D. Application Using Optional Di Board
(DAM412 B51)............................................................... 221
Part 8 Interface for use in LONWORKS®........... 223
1. Introduction ..................................................................225
2. System Configuration..................................................226
3. Part Names and Functions..........................................227
4. Function........................................................................228
4-1 Overview of Functions................................................... 228
4-2 Applicable Models ......................................................... 229
5. Specifications of Devices............................................230
6. Hardware.......................................................................231
6-1 Physical Appearance and Branch Connection.............. 231
6-2 Definition of LED and Switch......................................... 231
7. Object Details ...............................................................232
7-1 Node Objects................................................................. 232
7-2 DIII-NET Common Objects............................................ 232
7-3 Air Conditioner Objects ................................................. 233
8. Precautions Regarding XIF Files................................234
8-1 File Name...................................................................... 234
8-2 Limitations with Version 3.............................................. 234
8-3 Unused Network Variables............................................ 234
9. Notes for when Commissioning .................................235
9-1 Suspension of Message Transmission when
Receiving Set Node Mode Online................................. 235
10. Reference Materials
(Error Code Conversion Table)...................................236
11. Electric Wiring..............................................................237
11-1 Electric Wiring Connection ............................................ 237
11-2 Wiring Example ............................................................. 238

vi
12. Control-related Design Keypoints ..............................239
12-1 Introduction.................................................................... 239
12-2 System Configuration.................................................... 239
12-3 Hardware....................................................................... 241
12-4 Outline of Functions ...................................................... 242
12-5 LON Communication Specifications.............................. 247
12-6 Monitoring and Control Restrictions.............................. 249
13. Workflow.......................................................................251
14. Check Sheet for Control and Monitoring Items.........252
Part 9 Power Proportional Distribution
(P.P.D.) ..................................................... 255
1. P.P.D. Design Guide.....................................................256
1-1 System Architecture ...................................................... 256
1-2 Design Precautions ....................................................... 257
1-3 Connection other than VRV........................................... 260
1-4 Conditions and Method to Exclude Calculation for
Specified Indoor Unit..................................................... 261
1-5 Explanations of Power Proportional Distribution........... 262
1-6 Notes............................................................................. 267
2. intelligent Touch Controller (DCS601C51) with
the Software for P.P.D. Application (DCS002C51)
Including PCMCIA........................................................269
3. intelligent Touch Controller (DCS601C51) with
the Software for P.P.D. Application (DCS002C51)
Including PCMCIA Card and with the Software for
WEB Usage (DCS004A51)............................................270
4. intelligent Manager III (DAM602B51) with
P.P.D. Application ........................................................271
5. Interface for Use in BACnet®(DMS502B51) with
P.P.D. Application Using Optional Di Board
(DAM412 B51)...............................................................272
Part 10Adaptor .................................................... 273
1. Adaptor for System......................................................274
1-1 <DCS302A52> Unification Adaptor for
Computerized Control ................................................... 274
1-2 <KRP2A61 / KRP2A62 / KRP2A53>
Wiring Adaptor for Electrical Appendices (1)................. 277
1-3 <DTA104A61 / DTA104A62 / DTA104A53>
External Control Adaptor for Outdoor Unit
(Must be Installed on Indoor Units) ...............................287
1-4 <DTA109A51> DIII-NET Expander Adaptor.................. 295
1-5 Dio Unit (DEC102A51) .................................................. 299
1-6 Di Unit (DEC101A51) .................................................... 311
1-7 Ai Unit (DAM101A51).................................................... 320

vii
2. Adaptor for Indoor Unit and Other Equipment..........325
2-1 <KRP4A51 / KRP4A52 / KRP4A53 / KRP4A54>
Wiring Adaptor for Electrical Appendices (2)................. 325
2-2 <DTA102A52> Interface Adaptor for SkyAir Series ...... 334
2-3 <DTA112BA51> Interface Adaptor for
DIII-NET (SA)................................................................ 337
2-4 <DTA107A55> Central Control Adaptor Kit................... 338
2-5 <DTA103A51> Wiring Adaptor for
Other Air Conditioners................................................... 344
2-6 <KRP928B2S> Interface Adaptor for
DIII-NET (RA)................................................................ 348
2-7 <KRP1B61 / KRP1B56, 59 / KRP1C3>
Adaptor for Wiring ......................................................... 352

viii 1.1 DAIKIN Building Air-conditioning Control System (D-BACS) Overview
Introduction
1. Introduction
1.1 DAIKIN Building Air-conditioning Control System (D-BACS) Overview
D-BACS is a building air-conditioning control system built upon Daikin's unique high-speed multiplexed-transmission
technology. D-BACS can integrate and centrally control various air-conditioners. With Daikin’s VRV system at the center
various Daikin air-conditioning units, such as total heat exchangers, SkyAir, room air-conditioners, package air-conditioners,
and screw chillers can be integrated into the system. D-BACS can be also combined with other third-party building facilities,
such as ventilation air blowers, pumps, and illuminations.
D-BACS can mainly control operations such as:
1. Starting/Stopping equipment operation
2. Setting temperatures
3. Setting air volume for indoor unit fans in VRV system and total heat exchanger
4. Switching of cooling and heating
5. Displaying abnormalities
1.2 Advantages of D-BACS over Automatic Control by Central System
To enable automatic control in a central system, a capacity control and remote control must be designed carefully for
each different third-party air-conditioner, thus requiring a special system engineer (SE).

1.2 Advantages of D-BACS over Automatic Control by Central System ix
Introduction
On the contrary, the D-BACS system built around VRV basically does not require such a design process for the capacity
control, because a detection unit (mainly sensors), an operation unit (mainly valves), and an adjustment unit etc. are
already incorporated in the product at the time of factory shipment.
Therefore, a general air-conditioner facility designer can design an air-conditioner facility around Daikin's VRV system
without special knowledge. In addition, D-BACS can fully satisfy control-related customer requirements.
Capacity Control Detection Units and Operating Units,
and Adjustment Units are incorporated into Indoor Units
and Outdoor Units.

x1.3 How to Use this Document
Introduction
1.3 How to Use this Document
All the contents of this document are written for general air-conditioner facility designers. An air-conditioner facility
designer must provide the most economical and most efficient air-conditioner facility to end-users, comprehensively
taking all aspects of the air-conditioner into consideration, including air, water, refrigerant, environment, energy
consumption, and facility management. In particular, to allow efficient operation of the air-conditioner facility,
management or operation of the air-conditioning system must be examined thoroughly. All aspects of the management
and operation of the air-conditioning system must be designed based on user requirements.
Daikin's controlling equipment described in this document enables designers to fully satisfy user requirements.
Therefore, this document is an essential for source of information for air-conditioning system design.
This document covers almost all of the controlling equipment available from Daikin. This single document enables the
designers to explain the position or functions of equipment, required end-user operations, and prepare a proposal of the
air-conditioning system for a particular property. The designer of an air-conditioner facility can design a controlling
system for the property, and prepare the documents, such as below, for presentation to the end-user:
1. Equipment List: Types and quantities of equipment required
2. System Diagram: Diagram of connections between equipment items
3. Layout Plan for Controlling Equipment: Layout plan for each floor
4. Initial Settings: Minimum settings required for system operation, especially when there is a mixture of control
equipment types.
For the documentation required after satisfying the end user and obtaining the approval for the proposal, please refer to
installation guideand operation guide for the equipment for construction and test-operations. Also, separate Engineering
Data are available for the following products. If more detailed information about anything from total planning to test-
operation is required, or if you are an engineer specialized in control technology itself, our recommendation is to refer to
the Engineering Data:
1. intelligent Touch Controller ED72-423B
2. intelligent Manager ED72-746
3. BACnet®ED72-749
4. LONWORKS®ED72-333
1.4 Safety Precautions
Safety Precautions
For design, installation and maintenance, be sure to read the catalogue, this manual and the installation and operation
manual enclosed in the unit, and to follow their instructions.
Be sure to follow the “WARNING” (Failure to follow these instructions may cause a heavy injury or death.) and the
“CAUTIONS” (Failure to follow these instruction may cause the injury or damage on the property.) described in the
installation manual and etc.
<Cautions when designing the system>
1. Select the right products for your applications.
2. Be sure to consider the safety, electric shock and electric leakage when you design the system.
3. Be sure to follow the instructions in this manual for the operating range, characteristics of performance and limitation
for installation and etc.
<Cautions for the installation/operation>
1. Be sure to follow the safety pre-cautions described in the installation and operation manuals.
2. Be sure to install correctly according to the descriptions of the installation manual. Make sure to perform by the
authorized personnel the works such as a electrical work which requires the qualification.
3. Be sure to perform the commissioning of the system properly, and be sure that the power supply is correct and there
is no electric leakage and other abnormalities, such as abnormal sound, abnormal smell, smoke and etc. Also keep a
record of all the test operating data all the time.
4. Be sure to explain the contents of the operation manual when you hand over the job to the customer, and also ask the
customer to keep this manual wherever the operator can refer to all the time.
5. Hand over to the customer the warranty card duly filled.

1.5 Open Network Glossary xi
Introduction
<Cautions for maintenance>
1. Follow the instructions in the operation manual.
2. Be sure to perform the maintenance of the system properly, and be sure that the power supply is correct and there is
no electric leakage and other abnormalities, such as abnormal sound, abnormal smell, smoke and etc. Also record all
the maintenance data and keep this record all the time.
1.5 Open Network Glossary
Term Explanation
Ai Unit Connecting adapter that communicates information from environmental sensors (temperature, pressure,
humidity and voltage/electric current) to measurement unit.
ANSI American National Standards Institute
Architecture Refers to the overall design concept of the computer from hardware to software.
It is a systematic layout detailing the connection between the communications network and the devices in an
open network.
ASHRAE American Society of Heating, Refrigeration and Air-conditioning Engineers, Inc.
BACnet Building Automation Control Network
BAS Building Automation System
Users: Building management engineers
Main functions: Facility device status monitoring
Alarm monitoring
Operation management (scheduling)
Automatic control of facilities
Bind Refers to one of the activities included in a test run. Specifically, the logical address is appropriated and
allocated.
Binding Refers to the logical connecting between the network variables that the user wishes to communicate.
It is a setting that enables communication of nvo from one device/machine and nvi from another. This is a job
usually handled by an NI.
BMS Building Management System
Refers to a system for building management (management of electricity charges, equipment and the like).
BASs are configured within BMSs.
Users: Building management engineers
Main functions: Facility equipment ledger management
Repair history management
Maintenance schedule management
Billing data
Well known BMS manufacturers in Japan include NEC, YBS, YJ, Fujitsu, Panasonic and Oki.
Broadcast Refers to the simultaneous transmission of a message to all the devices connected in a system.
Messages involved in the communication between devices connected within a network are simultaneously
sent to all the devices within the network.
Centralized remote
controllers Devices for collectively programming and managing operation of multiple air conditioners, installed in facility from one or many locations.
Closed Network Refers to a system configured by only one manufacturer that does not allow access by other manufacturers.
DIII-NET is one such example.
Commission The work conducted when the central monitoring panel is connected to a gateway.
Specifically, the data within the gateway is sent to the central monitoring panel for data confirmation.
Refers to installation of settings in the node after the communication content is set via binding.
Communication Traffic
Volume Refers to the traffic volume determined according to the number of nodes and network variables and the frequency of communication between these two.
Configuration Property Refers to parameters related to the behavior of the LON nodes. Configuration properties are set for the
respective nodes by an NI when the network is being installed. They are assigned to the nodes' nonvolatile
memory. Unlike network variables, configuration properties represent semi-fixed variable values.
CRC Central Remote Controller
A device that allows remote controllers of up to 64 indoor units, groups or zones (total of 128 indoor units).
The single device provides centralized control to each connected indoor units for functions such as individual/
zone/simultaneous operation start/stop, room temperature control, etc. The device offers the same control
as individual remote controllers.

xii 1.5 Open Network Glossary
Introduction
Term Explanation
D-BACS It stands for Daikin Building Air-conditioning Control System.
Means centralized air-conditioning management and control system based on highly expandable DAIKIN
original network communication technology, DIII-NET. It is DAIKIN products that can be mainly controlled
through DIII-NET on D-BACS. And with various expander adapters connected , functions and usage of
control system can be expanded for following 3 sections of devices : 1) Equipment (electricity, plumbing,
elevator, ventilation, fire alarm, lighting, car park and crime/disaster prevention panel), 2) meters (electricity,
gas and water supply) and 3) environmental monitoring sensors (temperature, pressure, humidity and
voltage/current).
Di Unit Device by which DAIKIN centralized controllers are able to monitor operation and malfunction of up to 8
individual building facility equipment through DIII-NET, and pass them to centralized controllers. 'I' in Di
stands for INPUT from building facility equipment, and Di unit is only able to receive INPUT signal from
equipment, while Dio unit can receive operation signals from centralized controllers, and dictribute OUTOUT
signals to individual building equipment.
Dio Unit Device that is able to control operation, and monitor operation and malfunction for building equipment. 'I' in
Dio stands for INOUT from building facilities, while 'o' stands for OUTOUT to building facilities. This means
Dio unit can control building facility equipment for both ON and OFF operation. Di unit can only monitor ON
and OFF operation from building facility equipment.
DIII-NET Refers to Daikin Industries original communication network for A/C communications. (closed network)
Echelon The U.S. company that developed the LON.
Ethernet Refers to the name of and standard pertaining to a LAN product developed by Xerox.
Jointly developed by Xerox, DEC and Intel in 1980, Ethernet is the LAN used within BASs.
Free Topology Refers to a branched free-type connection arrangement within a network.
Daikin's Interface for LONWORKS®only supports free topology.
Gateway Refers to a device that translates the different communication codes sent between central monitoring panels
and A/C units to enable mutual communication.
It is used when more than one network is connected.
Interface for LONWORKS®and the Master Station are two such examples.
General Refers to the term 'general' used when conducting general or batch control. When controlling an entire
system, control is not conducted on each particular A/C unit, but on a generalized basis (all of the A/C units
together).
Group System of up to 16 indoor units controlled simultaneously from single or double remote controllers.
Heartbeat Refers to a function that cyclically communicates values of specific network variables.
Even if a main monitoring node does not request the data (does not confirm the status of the A/C unit), the
machine itself will automatically send the values. It allows the user to conclude that the node is operating
normally while this value is being sent.
HIM Human Interface Module
A device that incorporates the concept of the standard BAS protocol supported by the Institute of Electrical
Installation Engineers of Japan (IEIEJ). It enables the setting of parameters for status display, control and
monitoring of building equipment. It refers to a human interface device that performs On/Off operations and
the like.
Icont Intelligent Controller
A device that incorporates the concept of the standard BAS protocol supported by the IEIEJ. It is a control
device that is connected to either the building equipment or devices targeted for control via an interface. It
refers to a device that can support functions of independent monitoring, control and the like.
IEIEJ Institute of Electrical Installation Engineers of Japan

1.5 Open Network Glossary xiii
Introduction
Term Explanation
IEIEJ Specifications Refers to the specifications established by the institute that determines them for the Japanese version of the
BACnet. (The international specifications must be certified, however, by ASRAE.)
The IEIEJ Specifications feature functions added onto the BACnet according to demand in the Japanese
market. Related discussions are currently being held with ASHRAE. The points of discussion are as follows:
1. Measurement: The data type used to calculate electric energy, heat and the like. This is absolutely
necessary in energy management.
2. Power demand: The method of determining the contract demand with electric power companies differs
with respect to the country. Accordingly, it is necessary in Japan to interpret the average electric power used
over 30 minutes as the maximum electricity demand.
3. Common data dissemination methods: Due to the common adoption of comprehensive monitoring
systems in Japan, it is necessary to have a system by which large volumes of disaster-related data can be
efficiently transmitted. This point has not been considered in the BACnet.
4. Collective objects: Devices that support several forms of data should be managed on a per device basis.
This will be proposed by the Japanese side (IEIEJ).
intelligent Manager III A centralized control system for VRV that can be connected to up to 1,024 indoor units. It features various
functions such as targeted power control function, fire alarm linkup, database maintenance and error
prediction (Air Conditioning Network Service System). These functions effectively make it BMS specialized
for air conditioning. Synonyms: i-Touch Controller, Air Conditioning Network Service System. i-Manager is
served as the specialized air-conditioning control system.
intelligent
Touch Controller Multi-function system management controller that allows you to operate and monitor up to 128 VRV indoor units or 64 groups on colour LCD touch screen. It comes with functions that are combined with CRC, Unified
ON/OFF cobtroler and Schedule Timer. And it also includes applied functions such as electric power
distribution, Change Over Setting, Temperature Limit Setteing, Heating Optimization Settinfs. Furthermore,
this devise can be connected with LAN or public telephone line.
Interoperability Refers to the coordinated interlinking between related devices. An example of this is the control of lighting,
A/C, TV and the like with one R/C. If each of the respective companies involved uses a different protocol,
then they have to disclose their protocols and carry out discussions on several occasions to coordinate
efforts, which leads to an increase in costs. However, an open network essentially obviates such a situation
and allows machines manufactured by different companies to operate together without any problems. For
example, if A company's sensor breaks down, then it is possible to buy and install a product manufactured
by B company that will readily operate (interconnectivity). Different devices are, thus, able to communicate
and link up with each other.
iPU intelligent Processing Unit
Units for use of Intelligent Manager III
I/O INPUT/OUTPUT
Examples: Di (Digital input), Do (Digital output), Ai (Analog input), Ao (Analog output)
LON Local Operating Network
Refers to an intelligent distributed control network developed by the U.S. company, Echelon.
LONMARK The logo for products manufactured according to the guidelines established by the LONMARK Association.
LONMARK Refers to the LONMARK Interoperability Association.
The LONMARK Association is a nonprofit organization established to promote the use of LONWORKS. It
consists of some 350 companies from all over the world, including 19 from Japan.
The LONMARK Association was formed in order to create standard specifications for connection to LONs
between different vendors (companies).
LONMAKER Refers to the Echelon-developed tool (software) that allows installation commissioning (addressing), variable
binding, variable browsing (monitoring) and the like.
LONTALK Refers to the protocol used in LONs.
LONWORKS The generic term used to refer to the hardware, software, protocol and the like used to design, configure and
manage/service LONs.
Multi-vendor Refers to various machine/device manufacturers. The term 'multi-vendor environment' is also often used.
Network Variable The unit in which data are sent/received in communication between nodes. There are two types: network
variable input (nvi) and network variable output (nvo).
Neuron Chip Refers to a LON chip. It is the interface used to access the LON.

xiv 1.5 Open Network Glossary
Introduction
Term Explanation
NI The acronym for Network Integrator.
In the narrow sense, NI is the term used to refer to companies that have signed an NI contract with
ECHELON. In the broad sense, NI is the generic term used to refer to companies and engineers that
configure LONWORKS system networks proposed by ECHELON. The work of an NI is included in that of an
SI (system integrator) or SE (system engineer) in the case of computer systems. In LONWORKS systems,
the work of an NI involves network topology and network.
NI companies in Japan Obayashi Corporation
Takasago Thermal Engineering Co., Ltd.
DAI-DAN Co., Ltd.
NTT DATA Corporation
Hitachi Plant Engineering & Construction Co., Ltd.
Shimizu Corporation
Yukoukeisou Co., Ltd.
Chiyoda Keiso Co., Ltd.
System instrumentation Co., Ltd.
Hibiya Engineering, Ltd.
Shinryo Corporation
Mita Engineering Co., Ltd.
Taikisha Ltd.
Creight Co., Ltd.
Kyowa Exeo Corporation
As of August 2001
Node Refers to the devices connected by cable to the LON.
In other words, it refers to the devices to be controlled by the LON or BACnet.
VRV, valves and sensors are some examples.
nvi Network Variable Input
nvo Network Variable Output
Object Monitoring items and data.
Refers to something that regulates the operation of the object to be controlled.
The equivalent of a LON's SNVT or BACnet's object.
Open Network Refers to a network in which machines with different specifications are able to communicate with each other.
Profile In terms of a LON, the following are examples of items that are determined for each function of the respective
nodes in the LON:
- Network variable type
- Meaning of the network variable (function)
- Range and meaning of the network variable value (function).
Standardizing these ensures interconnectivity.
However, a LON is not configured for VRVs or PAs, so profiles for such A/C systems must be created by
each manufacturer in accordance with the respective network variable regulations. (Due to the fact that the
profiles differ with respect to the manufacturer, profiles such as those for VRVs and PAs are not certified by
LONMARK. However, because they conform with regulations, they can be treated as open networks by
disclosing the network variables.
Polling When the control station does not have the necessary data (the central monitoring panel does not have any
commands), it sends requests at regular intervals to each tributary station asking whether it has any data
transmission requests (data that the tributary station would like to communicate to the control station). The
control station sequentially gives each of the tributary stations request transmission rights, allowing them to
send the respective data.
Property Refers to each of the elements comprising an object.
Protocol The agreed rules and regulations used in communication between different computer programs.
When the protocol differs, two computer programs are unable to comprehend each other (communicate).
P.P.D It stands for Power Proportional Distribution
Proportional calculation of electric comsumption of VRV indoor unit
Router Refers to a device used for connections between different networks.
A router forwards data packets between networks. In an internal (in-company) LAN, it is used to connect the
LANs installed on a per floor basis. Meanwhile, a dial-up router is used to connect the Internet with a LAN.
Routers are also used for connections between an Ethernet and LON, for example, in the field of open
protocols used for building control.
R/C Remote Controller
A Controller that let you individually control the operation of indoor unit for Air-conditioners

1.5 Open Network Glossary xv
Introduction
Term Explanation
SE System Engineer
System Engineer (SE) is a generic term used in the computer industry to refer to engineers who install
computers and communications devices for end-users. System engineers also generally confirm proper
operation of OS (operating software) and AS (application software) after set up. These capabilities are, of
course, necessary in the case of a BAS, but unlike the so-called computer systems, the SE must also
determine necessary specifications in order for vendors to manufacture systems that can effectively realize
functions and achieve desired performance levels detailed on the provided drawings. In addition, appropriate
instruction to and/or coordination between related parties, such as departments that design and create
hardware and software, according to the pertinent process as well as the promotion of smooth system
configurations are also responsibilities of the SE.
Selecting When a control station (central monitoring panel) sends data to a tributary station (DMS II or Interface for
LONWORKS® ), a message is first sent to the latter to check if the data can be received. The data is then
sent upon receipt of an affirmative response from the tributary station (indicating that the data can be
received).
SI System Integrator
System Integrator (SI) is a generic term used in the computer industry to refer not only to the workof selecting
hardware and software suited to configured computer systems, setting up networks and altering software to
accompany the systems to be installed but also to the companies/engineers who perform the work. BASs,
including building management systems, represent a type of computer system, so the responsibilities of an
SI are the same. In addition, the responsibilities of the SI also include: a thorough understanding of functions
and features of the targeted electric equipment, A/C system and the like; coordination between hardware,
software and network designs provided by a multiple number of vendors; and smooth configuring of systems
to meet the objectives within a predetermined cost in cooperation with design supervisors and BA orderers.
Single Vendor Refers to a situation involving only one vendor or manufacturer.
SNVT Standard Network Variable Types
Refers to the variables used to control A/C units within LONs. These variables have been established by the
The Japan Refrigeration and Air Conditioning Industry Association (JRAIA) and are the standard variables in
Japan.
They are the equivalent of codes for control and monitoring items that enable interoperability in LONs.
(Predefined objects)
TCP-IP Transmission Control Protocol/Internet Protocol
TCP-IP is a standard protocol supported in all OS such as UNIX, an OS used in mid- to large-sized
computers, Windows and Mac.
TCP-IP was designed by an organization associated with the U.S. Department of Defense to allow for
communications between computers through another route even if a part or parts of a network were
destroyed.
Topology Refers to theconnection arrangement within a network. Equivalent tothe wiring method in DIII-NET. Star and
bus are some examples of topologies.
Unicast Refers to the sending of messages only to specified devices.
Specifically, it is the sending of messages between devices connected in a network on a one-to-one basis.
Unit Minimum unit of indoor unit or outdoor unit: One indoor unit shall be assumed to be one unit, and one outdoor
unit with refrigerating cycle shall be assumed to be one unit.
UNVT User-defined Network Variable Types
Refer to the variables used to control A/C units within LONs. They are determined according to specific
projects (buildings, etc.) and, thus, are usually not used.
Vendor The seller or manufacturer
XIF File Refers to a file comprised of data containing network variables for LON nodes. The company manufacturing
the node (in this case, Daikin) creates the file and submits it to the NI upon receipt of an order for a system.
Zone A specified air-conditioning area that requires the same control in a building.

xvi 1.5 Open Network Glossary
Introduction

1
Part 1
Outline of D-BACS System
1. D-BACS (DAIKIN Building Air Conditioning
Control System) System Over View ....................2
1-1 D-BACS System Integrated System Diagram................... 2
2. System Over View .................................................4
2-1 Targeted Project Scale and Map.......................................4
2-2 Number of Group for Centralized-Control Devices
Connectable with Indoor-Units.......................................... 5
2-3 Control Function of the Devices........................................5
3. List of D-BACS System Equipment .....................6
3-1 List of Control System Equipment.....................................6
3-2 Main Specifications and Functions of the Equipment .......8
4. List of Control System Equipment and
Functions .............................................................14
5. Functions of Centralized Controllers ................15
6. Central Control Equipment Combinations........22
7. List of Applicable Models of DAIKIN .................23

21.1 D-BACS System Integrated System Diagram
Outline of D-BACS System
1. D-BACS (DAIKIN Building Air Conditioning Control System) System Over View
1.1 D-BACS System Integrated System Diagram
A variety of central control systems with high speed communication DIII-NET method are provided. By combining a
variety of controllers, the system implements not only advanced multiple operational controls for buildings but also
advanced building integrated monitoring systems that control a variety of building equipment.
D-BACS System
Air Conditioning Control System
BMS / BAS
intelligent
Touch Controller
BAS
(field supplied)
BAS
(Field supplied) Contact point
signal line
Interface for
Control /
connection
Central Remote
Control Equipment
for Air Conditioning
Unification
Adaptor for
computerized
control
Central
Remote
Controller
Unified ON/OFF
Controller
Parallel Interface
Upper Upper middle/Middle
Interface for use
in BACnet
Interface for
use in
LONWORKS
Air-conditioner Data Management
System backed by the Building Multi
Communication Line DIII-NET. Air-
conditioner data can be directly
transferred without interface for
100% data management.

1.1 D-BACS System Integrated System Diagram 3
Outline of D-BACS System
TNP
Interfoce Adoptor for DIII -NET(RA)Interface Adaptor for DIII -NET(RA)
Extended Adaptor
VRV
Total Heat Exchanger
Unit HRV
Can be connected directly.
DAIKIN Air cooled
Water Chillers
SkyAir
(Round flow, wall mounted
type unnecessary)
Air Conditioner for Equipment
* Some models require adaptors
Room Air-conditioner
Room Air-conditioner
VRV
Interface Adaptor for
SkyAir series
Wiring Adaptor for
other air-conditioners
Wiring Adaptor for
Electrical Appendices
Dio Unit
Di Unit
Ai Unit
Building Equipment
CUWD Series DAIKIN
Water cooled (Chiller)
· Electric
equipment
· Elevator
· Plumbing
equipment
· Ventilating
equipment
· Automatic fire
alarm panel
· Illuminating lamps
· Parking facility
· Crime/disaster
prevention panel
Analog Input Equipment
Ai: · Temperature sensor
· Pressure sensor
· Humidity sensor
· Voltage/current monitoring
Note
Control function may vary according
to the model.
The expansion of the control system
requires discussions etc. beforehand.
Please enquire DAIKIN distributer
while you are studying.
DIII-NET line
RS232 communication line
Contact point signal line
Ai transmission line
LONWORKS®network
communication line
BACnet®/ Ethernet
Schedule
Timer
The features of DIII-NET
* Integrates a variety of air-conditioning machines extending throughout a building while provides accurate control and monitoring.
* Reduces the wiring in a building by providing the nonpolar double wire system.The wiring work is easy to accomplish with
few faulty wiring.
* Later installation is also easy to accomplish. In total, up to two kilometers can be extended for wiring.
* A variety of controllers can be combined which also allows construction of a hierarchical risk diversification system.
* Our total heat exchangers and central air-conditioning machines can also be controlled totally.
Lower