Mitsubishi Electric AE-200A User manual

Contents
Safety precautions..............................................................................2
1. Parts to be used ...........................................................................4
1-1. Required parts.......................................................................4
1-2. Separately sold parts ............................................................4
1-3. Commercially available parts ................................................4
2. Before use....................................................................................5
2-1. Introduction ...........................................................................5
2-2. License..................................................................................5
2-3. Models of units that can be controlled with BACnet®............6
2-4. Restrictions and cautions ......................................................6
3. Usage (System configurations) ....................................................7
3-1. Sample system configurations ..............................................7
3-2. Group configurations...........................................................10
4. Usage (Communication specifications)...................................... 11
4-1. BACnet®specifications........................................................ 11
4-2. Communication protocol specifications............................... 11
4-3. Objects ................................................................................12
4-4. Services ..............................................................................14
4-5. Services for each object......................................................16
5. Usage (Function specifications) .................................................17
5-1. Controller functions and BACnet®functions........................17
5-2. Basic functions ....................................................................19
5-3. Set temperature objects ......................................................25
5-4. “System Forced Off” forced-reset function ..........................25
5-5. Apportioned electricity billing function .................................26
5-6. Alarm Signal ........................................................................30
5-7. Event service specifications ................................................31
5-8.
BACnet®information and storage timing/cycle in nonvolatile
memory within the AE-200/AE-50/EW-50 .............................33
6.
Usage (AE-200/AE-50/EW-50 BACnet®connection mode) .........34
6-1.
AE-200/AE-50/EW-50 BACnet®connection mode...............34
7. Checking installation operations and performing trial run ..........35
7-1. Flow of initial settings ..........................................................35
7-2. Preparatory items for initial settings ....................................37
7-3. Step-1 Initial settings for the air conditioning system ..........38
7-4. Step-2 Trial run of the air conditioning system....................40
7-5. Step-3 Initial settings for the BACnet®related items ...........41
7-6. Step-4 Trial run of BACnet®function ...................................42
7-7. When changing settings or reconfiguring AE-200/AE-50/
EW-50 .................................................................................55
Appendix: Added functions...............................................................57
Air Conditioning Control System
Centralized Controller
AE-200A/AE-50A/EW-50A
AE-200E/AE-50E/EW-50E
Before using the controller,
please read this Instruction
Book carefully to ensure proper
operation.
Retain this manual for future
reference.
BACnet®is a registered
trademark of ASHRAE (American
Society of Heating, Refrigerating
and Air-Conditioning Engineers,
INC.).
Instruction Book
–BACnet®function–
<ORIGINAL>

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Safety precautions
►Observe these precautions carefully to ensure safety.
►After reading this manual, pass the manual on to the end user to retain for future
reference.
►The user should keep this manual for future reference and refer to it as necessary. This
manual should be made available to those who repair or relocate the units. Make sure
that the manual is passed on to any future air conditioning system user.
: indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
: indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
: addresses practices not related to personal injury, such as product
and/or property damage.
General precautions
Do not install the controller in areas where large amounts of oil, steam, organic solvents,
or corrosive gases (such as ammonia, sulfuric compounds, or acids), or areas where
acidic/alkaline solutions or special chemical sprays are used frequently. These substances
may significantly reduce the performance and corrode the internal parts, resulting in
electric shock, malfunction, smoke, or fire.
To reduce the risk of short circuits, current leakage, electric shock, malfunction, smoke, or
fire, do not wash the controller with water or any other liquid.
To reduce the risk of electric shock, malfunction, smoke, or fire, do not touch the electrical
parts, USB memory, or touch panel with wet fingers.
To reduce the risk of injury or electric shock, before spraying a chemical around the
controller, stop the operation and cover the controller.
To reduce the risk of injury, keep children away while installing, inspecting, or repairing the
controller.
If you notice any abnormality (e.g., burning smell), stop the operation, turn off the
controller, and consult your dealer. Continuing the operation may result in electric shock,
malfunction, or fire.
Properly install all required covers to keep moisture and dust out of the controller. Dust
accumulation and the presence of water may result in electric shock, smoke, or fire.
To reduce the risk of fire or explosion, do not place flammable materials or use flammable
sprays around the controller.
To reduce the risk of electric shock or malfunction, do not touch the touch panel, switches,
or buttons with a sharp object.
To avoid injury from broken glass, do not apply excessive force to the glass parts.

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To reduce the risk of injury, electric shock, or malfunction, avoid contact with the sharp
edges of certain parts.
Consult your dealer for the proper disposal of the controller. Improper disposal will pose a
risk of environmental pollution.
Precautions for relocating or repairing the unit
The controller must be repaired or moved only by qualified personnel. Do not disassemble
or modify the controller. Improper installation or repair may result in injury, electric shock,
or fire.
Additional precautions
To avoid discoloration, do not use benzene, thinner, or chemical rag to clean the controller.
When the controller is heavily soiled, wipe the controller with a well-wrung cloth that has
been soaked in water with mild detergent, and then wipe off with a dry cloth.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that they do not play
with the appliance.
Terms used in this manual
- “Centralized Controller AE-200A/AE-200E” is referred to as “AE-200”.
- “Centralized Controller AE-50A/AE-50E” is referred to as “AE-50”.
- “Centralized Controller EW-50A/EW-50E” is referred to as “EW-50”.
- “PI controller (PAC-YG60MCA)” is referred to as “PI controller”.
- “AI controller (PAC-YG63MCA)” is referred to as “AI controller”.
- “OA Processing Unit (LOSSNAY with heater and humidifier)” is referred to as “OA Processing Unit”.
- “e-Series chiller unit (EAHV, EACV)” is referred to as “Chiller unit”.

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1. Parts to be used
1-1. Required parts
Obtain the items listed below from your dealer before using this function.
No. Item Remarks
1AE-200/AE-50/EW-50 Instruction
Book (BACnet®function)
This manual
2“BACnet connection” license for
AE-200/AE-50/EW-50
Required for each AE-200/AE-50/EW-50 that connects to
BACnet®.
3 BACnet®Setting Tool Used for configuring BACnet®function for AE-200/AE-50/EW-50.
4
Software update file Used for updating the AE-200/AE-50/EW-50 to the latest version.
The versions of all AE-200/AE-50/EW-50 that connect to BACnet®
must be the same.
The items listed above are essential to use the BACnet®function. For equipment that are required for initial
settings and trial runs of the BACnet®function, refer to section 7-2 “Preparatory items for initial settings”.
When using the apportioned electricity billing function with the BACnet®function, the parts that are used for the
apportioned electricity billing function are also required. For details, refer to the AE-200/AE-50/EW-50 Instruction
Book (Apportioned Electricity Billing Function).
1-2. Separately sold parts
None.
When using the apportioned electricity billing function with the BACnet®function, the parts that are used for the
apportioned electricity billing function are also required. For details, refer to the AE-200/AE-50/EW-50 Instruction
Book (Apportioned Electricity Billing Function).
1-3. Commercially available parts
Where necessary, prepare the commercially available parts listed below.
Item Qty Remarks
Communication
item
LAN cable As appropriate Category 5 or above straight cable
(Max. 100 m (328 ft)) *1
Switching HUB Required number 100 BASE-TX-compatible
*1 If the LAN cable is to be longer than 100 m, pass this through a switching HUB.
When using the apportioned electricity billing function with the BACnet®function, the parts that are used for the
apportioned electricity billing function are also required. For details, refer to the AE-200/AE-50/EW-50 Instruction
Book (Apportioned Electricity Billing Function).

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2. Before use
This manual explains how to use the AE-200/AE-50/EW-50 BACnet®function.
For how to install AE-200/AE-50/EW-50 or how to use the functions other than the BACnet®function, refer to the
AE-200/AE-50/EW-50 Installation Manual and Instruction Book.
For how to use the BACnet®Setting Tool, refer to the AE-200/AE-50/EW-50 Instruction Book (BACnet®Setting
Tool).
When using the apportioned electricity billing function with the BACnet®function, refer to the
AE-200/AE-50/EW-50 Instruction Book (Apportioned Electricity Billing Function) and the AE-200/AE-50/EW-50
Instruction Book (BACnet®Apportioned Electricity Billing Function Trial Run).
2-1. Introduction
The AE-200/AE-50/EW-50 BACnet ®function can be used when connecting AE-200/AE-50/EW-50 to the open
network BACnet®that is used for the building management system.
The air conditioning units connected to AE-200/AE-50/EW-50 can be monitored and operated not only from the
existing web browser or the AE-200/AE-50’s LCD, but also from the building management system using the
BACnet®communication protocol.
Note
The explanation of the BACnet®function in this manual is based on the specification of AE-200/AE-50/
EW-50 software version 7.50.
2-2. License
The licenses related to the AE-200/AE-50/EW-50 BACnet®function are as follows.
License name Requirement condition Required number and remarks
“BACnet connection”
Required when using the BACnet®
function
One license is required for each
AE-200/AE-50/EW-50 that connects to
BACnet®.
“Charge”
Required when using the apportioned
electricity billing function
One license is required for the AE-200 that
is used for electricity apportioning and each
AE-50/EW-50 that connects to the AE-200.

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2-3. Models of units that can be controlled with BACnet®
The table below shows models that can connect to AE-200/AE-50/EW-50, and models that can be controlled
with the BACnet®function.
V: Connectable/Controllable
—: Not connectable/Not controllable
Model Connectable/Not connectable
to AE-200/AE-50/EW-50
Controllable/Not controllable
with BACnet®
CITY MULTI
S series V V
Y series V V
HP series V V
R2 series V V
WY series V V
WR2 series V V
HVRF series V V
LOSSNAY V V
(Only when groups are configured.)
OA Processing Unit V V
(Only when groups are configured.)
Air To Water Booster unit/Air To Water (PWFY) V V
A-control unit (Mr. Slim) An adapter is required. V
K-control unit — —
Room air conditioner (RAC) An interface is required. V
Hot Water Heat Pump unit
(CAHV, CRHV, QAHV) V —
Chiller unit V —
DIDO controller (PAC-YG66DCA) V —
PI controller (PAC-YG60MCA) V V
AI controller (PAC-YG63MCA) V —
2-4. Restrictions and cautions
Restrictions and cautions for AE-200/AE-50/EW-50 BACnet®functions are as follows.
(1) Action to take when an error occurs
Immediately carry out repairs to the problem area when an error related to air conditioning units is detected
on the building management system.
(2) Functions
Due to continuing improvement, specifications are subject to change without notice.
(3) Request interval
When sending “ReadProperty” or “WriteProperty” from the building management system to the
AE-200/AE-50/EW-50, set the interval to 200 (ms/property) or above.
When sending 10 properties using “ReadPropertyMultiple”, wait for at least 2000 ms (= 200 ms × 10
properties) before sending another request to the AE-200/AE-50/EW-50.
ReadPropertyReadProperty WriteProperty
200 ms
ReadProperty WriteProperty
200 ms 200 ms200 ms
ReadProperty
ReadPropertyMultiple (10 properties)
2000 ms (200 ms × 10 properties)

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3. Usage (System configurations)
3-1. Sample system configurations
(1) When controlling 50 or fewer units of equipment and not using an apportioned electricity
billing function
*1 Use a switching HUB to connect to LAN1 and LAN2 (BACnet®). Do not connect LAN1 and LAN2 (BACnet®) to the same HUB.
*2 A PC (hereafter referred to as Setting PC) is required to make settings for the AE-200/EW-50 BACnet®functions. After making settings,
disconnect the Setting PC as well as LAN cables and HUBs used to connect to the Setting PC from the AE-200/EW-50. Refer to section
7 “Checking installation operations and performing trial run” for details.
Setting PC *2
Outdoor unit
HUB *1
Outdoor unit
ME remote controller
ME remote controller
Indoor unit
LAN1
Indoor unit
M-NET
LOSSNAY
M-NET
LOSSNAY
BACnet®
HUB *1
EW-50
M-NET
HUB *1
AE-200
or
Building management system
LAN2

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(2) When controlling more than 50 units of equipment *3 and not using an apportioned
electricity billing function
*1 Use a switching HUB to connect to LAN1 and LAN2 (BACnet®). Do not connect LAN1 and LAN2 (BACnet®) to the same HUB.
*2 A PC (hereafter referred to as Setting PC) is required to make settings for the AE-200/AE-50/EW-50 BACnet®functions. After making
settings, disconnect the Setting PC from the AE-200/AE-50/EW-50. Refer to section 7 “Checking installation operations and performing
trial run” for details.
*3 Up to 50 units of equipment can be connected to and controlled by each AE-200/AE-50/EW-50. If performing centralized control with an
AE-200, up to 3 AE-50/EW-50 can be connected to a single AE-200 (if not using AE-200 M-NET, up to 4 can be connected).
*4 If performing centralized control with an AE-200, because time synchronization from the building management system comes through
the AE-200, then for systems including those that do not have BACnet®control functions, configure so that AE-200 is connected to the
BACnet®, by connecting devices to control with BACnet®to the AE-200.
Setting PC *2
HUB *1
LAN1
M-NET
BACnet®
HUB *1
AE-50/EW-50
HUB *1
Building management system
HUB *1
AE-200 *4/EW-50 Outdoor
unit
LAN2
LAN1
ME remote controller
Outdoor
unit
M-NET
ME remote controller
M-NET
Outdoor
unit
M-NET
Indoor unit
ME remote controller
Outdoor
unit
Indoor unit
M-NET
LAN2
LAN1
ME remote controller
M-NET
M-NET
Indoor unit
AE-50/EW-50
LOSSNAY
Outdoor unit/indoor unit etc.
LAN2
Indoor unit
LAN1
LOSSNAY
M-NET
AE-50/EW-50
LOSSNAY
Outdoor unit/indoor unit etc.
LOSSNAY
LAN2

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(3) When using an apportioned electricity billing function *4
*1 Use a switching HUB to connect to LAN1 and LAN2 (BACnet®). Do not connect LAN1 and LAN2 (BACnet®) to the same HUB.
*2 A PC (hereafter referred to as Setting PC) is required to make settings for the AE-50/EW-50 BACnet®functions. After making settings,
disconnect the Setting PC from the AE-50/EW-50. Refer to section 7 “Checking installation operations and performing trial run” for
details.
*3 If using the apportioned electricity billing function, we recommend that instead of using the AE-50/EW-50 built-in Pulse Input (PI), the PI
controller be used for measurement of electric energy.
(If AE-50/EW-50 built-in Pulse Input (PI) is used, pulse input will not be possible when the AE-50/EW-50 is stopped, during power
outages or during software updates. This could result in discrepancies between the measurements and the actual electric energy
consumed.)
When using the AE-50/EW-50 built-in Pulse Input (PI), approve the above-mentioned restrictions for the customer and then use.
*4 Up to 50 units of equipment can be connected to and controlled by each AE-50/EW-50. Up to 4 AE-50/EW-50 controllers can be
connected to each AE-200 for billing function.
*5 To use an apportioned electricity billing function and perform date and time synchronization from the building management system, set
the “Time Master/Sub” setting to “Sub” on the AE-200 for billing function and synchronize the time from AE-50/EW-50 connected to
BACnet®. The “Time Master/Sub” setting can be made on the Initial Setting Tool, Web Browser for Initial Settings, or AE-200/AE-50’s
LCD. (Refer to the AE-200/AE-50/EW-50 Instruction Book (Initial Settings) for settings methods.)
*6 If using the apportioned electricity billing function, connection of M-NET and Pulse Input (PI) to the AE-200 for billing function is
prohibited. Accordingly, the AE-200 for billing functions does not have any BACnet ®control devices, and BACnet ®connection is not
necessary. As a result, BACnet ®settings and "BACnet connection" license are not required for the AE-200 for billing function.
*7 If using the apportioned electricity billing function, connection of LAN1 for transfer of power apportioning information is required.
Setting PC *2
HUB *1
LAN1 *7
M-NET
BACnet®
HUB *1
AE-50/
EW-50
HUB *1
Building management system
HUB *1
AE-200 *5 *6
LAN2
LAN1
*7
PI controller
Outdoor
unit
M-NET
ME remote controller
Outdoor
unit
M-NET
ME remote controller
Indoor unit
M-NET
LAN2
LAN1
*7
M-NET
Indoor unit
AE-50/EW-50
Outdoor unit/indoor unit etc.
LAN2
LAN1
*7
LOSSNAY
M-NET
AE-50/EW-50
LOSSNAY
Outdoor unit/indoor unit etc.
LAN2
LAN1 needs to be connected to the AE-200 for billing function.
LAN2 (BACnet®), M-NET, and Pulse Input (PI) cannot be connected to the AE-200 for
billing function.
Electricity meter *3
Electricity meter
LAN1
*7
LAN2
AE-50/
EW-50
M-NET
Pulse signal
Electricity meter *3
Outdoor unit/indoor unit etc.
Pulse signal
Electricity meter *3
Pulse signal
Electricity meter *3
Pulse
signal
Pulse
signal

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3-2. Group configurations
The basic functions of the BACnet®function can be performed for each unit group.
Multiple indoor units (ICs) in a group can collectively be controlled.
The group number is a range of 1 to 50.
Building management system
BACnet®
AE-200/AE-50/EW-50
LAN2
M-NET
* Outdoor units and remote
controllers are omitted in this figure.
Air conditioning equipment
IC
01
Group
No. 1
IC
02
IC
03
IC (Indoor unit)
IC
04
Group
No. 2
IC
05
Unit address
Group number

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4. Usage (Communication specifications)
4-1. BACnet®specifications
BACnet®communication specifications are based on ANSI/ASHRAE Standard 135-2010.
4-2. Communication protocol specifications
(1) Overview of protocol
•Use BACnet®/IP based on ANSI/ASHRAE Standard 135-2010 on UDP/IP of Ethernet®*.
•LAN2 is used to connect BACnet®.
Ether header IP header UDP header BVLL header NPCI header APDU
* Ethernet®is a registered trademark of Fuji Xerox Co., Ltd.
(2) Ether header
The physical layer is Ethernet®and the specifications are 100BASE-TX.
(3) IP header
A Class C private address is recommended *1. The sub-net mask is 255. 255. 255. 0.
*1 Recommended values (range): [192.168.2.1] to [192.168.254.254]
[192.168.0.0] and [192.168.255.255] should not be used for a LAN2 IP address.
An IP address set using LAN1 should not be used as a LAN2 IP address.
LAN1 and LAN2 network addresses must not be the same.
(4) UDP header
47808 (0xBAC0) is recommended for the default UDP port for unicast and broadcast.
(5) BVLL header
BVLC type (1 octet): 0x81 fixed (BVLL for BACnet®/IP)
BVLC function (1 octet): 0x0A for unicast
0x0B for broadcast
BVLC length (2 octets): Variable (BVLL header (4) + APDU data length)
(The above is a typical example. For details, refer to ANSI/ASHRAE Standard 135-2010.)
(6) BACnet®NETWORK NPCI header
Version (1 octet): 0x01 fixed
Control (1 octet): 0x04 with response message
0x00 without response message
(The above is a typical example. For details, refer to ANSI/ASHRAE Standard 135-2010.)
(7) APDU for BACnet®
Data of 1,024 octets and under.
(Refer to ANSI/ASHRAE Standard 135-2010 for details.)

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4-3. Objects
Support status for objects and for BACnet®functions are listed below.
V: Supported
—: Not supported
Object type *1 Abbreviation Supported/
Not supported Object
Access Credential (32) — —
Access Door (30) — —
Access Point (33) — —
Access Rights (34) — —
Access User (35) — —
Access Zone (36) — —
Accumulator (23) AC V
Group Apportioned Electric Energy
Interlocked Units Apportioned Electric Energy
PIcontroller Electric Energy 1–4
Pulse Input Electric Energy 1–4
Group Apportionment Parameter
Interlocked Units Apportionment Parameter
Analog Input (0) AI V Room Temp [Water Temp]
Error Code Detail
Analog Output (1) — —
Analog Value (2) AV V
Set Temp [Set Water Temp]
Set Temp Cool
Set Temp Heat
Set Temp Auto
Set High Limit Setback Temp
Set Low Limit Setback Temp
Averaging (18) — —
Binary Input (3) BI V
On Off State
Alarm Signal *2
Filter Sign [Circulating Water Exchange Sign]
M-NET Communication State
Night Purge State
Thermo On Off State
System Alarm Signal *2
External Heat Source State
PIcontroller Alarm Signal *2
Binary Output (4) BO V On Off Setup *3
Binary Value (5) BV V
Filter Sign Reset [Circulating Water Exchange Sign Reset]
Prohibition On Off *3
Prohibition Mode
Prohibition Filter Sign Reset [Prohibition Circulating Water
Exchange Sign Reset]
Prohibition Set Temperature
Prohibition Fan Speed
System Forced Off (individual)/(collective) *4
BitString Value (39) — —
Calendar (6) — —
CharacterString
Value (40) — —
Command (7) — —
Credential Data Input (37) — —
Date Pattern Value (41) — —
Date Value (42) — —
DateTime Pattern
Value (43) — —
DateTime Value (44) — —
Device (8) DEV V Device object of AE-200/AE-50/EW-50
Event Enrollment (9) — —
Event Log (25) — —

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Object type *1 Abbreviation Supported/
Not supported Object
File (10) — —
Global Group (26) — —
Group (11) — —
Integer Value (45) — —
Large Analog Value (46) — —
Life Safety Point (21) — —
Life Safety Zone (22) — —
Load Control (28) — —
Loop (12) — —
Multi-state Input (13) MI V
Error Code
Operational Mode State
Fan Speed State
Air Direction State
Ventilation Mode State
Air To Water Mode State
Multi-state Output (14) MO V
Operational Mode Setup
Fan Speed Setup
Air Direction Setup
Ventilation Mode Setup
Air To Water Mode Setup
Multi-state Value (19) — —
Network Security (38) — —
Notification Class (15) CLS V Notification Class
OctetString Value (47) — —
Positive Integer
Value (48) — —
Program (16) — —
Pulse Converter (24) — —
Schedule (17) — —
Structured View (29) — —
Time Pattern Value (49) — —
Time Value (50) — —
Trend Log (20) LOG V
Trend Log Room Temp
Trend Log Group Apportioned Electric Energy
Trend Log Interlocked Units Apportioned Electric Energy
Trend Log PIcontroller Electric Energy 1–4
Trend Log Pulse Input Electric Energy 1–4
Trend Log Group Apportionment parameter
Trend Log Interlocked Units Apportionment parameter
Trend Log Multiple (27) — —
*1 Values within parentheses are “Object_Type” property values.
*2 Outputs an error code (4-digit) in Description and Message Text of event notification.
*3 Do not use this when “External Input Setting” for AE-200/AE-50/EW-50 is set to “ON/OFF (Level signal)”. “External Input Setting” can
be configured on the Initial Setting Tool, Web Browser for Initial Settings, or AE-200/AE-50’s LCD. (Refer to the AE-200/AE-50/EW-50
Instruction Book (Initial Settings) for settings methods.)
*4 Executes the stop command and remote controller operation prohibition (run/stop) command for air conditioning units.

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4-4. Services
The BACnet®service support status is shown below.
V: Supported
—: Not supported
Initiate request: Provides services
Execute request: Receives and uses services
Service Initiate request Execute request
1. Alarm and Event Services
(1) Acknowledge Alarm Service — —
(2) ConfirmedCOVNotification Service V —
(3) ConfirmedEventNotification Service V —
(4) GetAlarmSummary Service — —
(5) GetEnrollmentSummary service — —
(6) GetEventInformation Service — V
(7) LifeSafetyOperation Service — —
(8) SubscribeCOV Service *1 — V
(9) SubscribeCOVProperty Service — —
2. File Access Services
(1) AtomicReadFile Service — —
(2) AtomicWriteFile Service — —
3. Object Access Services
(1) AddListElement Service — V
(2) RemoveListElement Service — V
(3) CreateObject Service — —
(4) DeleteObject Service — —
(5) ReadProperty Service — V
(6) ReadPropertyConditional Service — —
(7) ReadPropertyMultiple Service — V
(8) ReadRange Service — V
(9) WriteProperty Service — V
(10) WritePropertyMultiple Service — V
4. Remote Device Management Services
(1) DeviceCommunicationControl Service — —
(2) ConfirmedPrivateTransfer Service — —
(3) ConfirmedTextMessage Service — —
(4) ReinitializeDevice Service — —
5. Virtual Terminal Services
(1) VT-Open Service — —
(2) VT-Close Service — —
(3) VT-Data Service — —
6. Security Services
(1) Authenticate Service — —
(2) Request Key Service — —
7. Unconfirmed Services
(1) I-Am V V

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Service Initiate request Execute request
(2) I-Have V —
(3) UnconfirmedCOVNotification Service V —
(4) UnconfirmedEventNotification Service V —
(5) UnconfirmedPrivateTransfer Service — —
(6) UnconfirmedTextMessage Service — —
(7) TimeSynchronization Service — V
(8) UTCTimeSynchronization Service — —
(9) Who-Has — V
(10) Who-Is V V
*1 The maximum number of COV notifications which can be registered is 3,150. However, 5 is the maximum number of COV notifications
which can be registered in which Lifetime is not = 0.

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4-5. Services for each object
The table below lists the supported services for each object.
○: Supported
△: Settings can be changed on the BACnet®Setting Tool.
INIT: Provides services (Initiate)
EXEC: Receives and executes services (Execute)
Device
Analog Input
Analog Value
Binary Input
Binary Output
Binary Value
Multi-State Input
Multi-State Output
Notification Class
Accumulator
Trend Log
ConfirmedCOVNotification INIT △△△△△△△
EXEC
ConfirmedEventNotification INIT △ △ △ △
EXEC
GetEventInformation INIT
EXEC ○
SubscribeCOV INIT
EXEC ○
AddListElement INIT
EXEC ○
RemoveListElement INIT
EXEC ○
ReadProperty INIT
EXEC ○○○○○○○○○○○
ReadPropertyMultiple INIT
EXEC ○○○○○○○○○○○
ReadRange INIT
EXEC ○ ○ ○
WriteProperty INIT
EXEC ○○○○○ ○○○○
WritePropertyMultiple INIT
EXEC ○○○○○ ○○○○
I-Am INIT ○
EXEC ○
I-Have INIT ○
EXEC
UnconfirmedCOVNotification INIT △△△△△△△
EXEC
UnconfirmedEventNotification INIT △ △ △ △
EXEC
TimeSynchronization INIT
EXEC △
Who-Has INIT
EXEC ○
Who-Is INIT ○
EXEC ○
Object
Service

17
WT07919X04
5. Usage (Function specifications)
The AE-200/AE-50/EW-50 BACnet ®function mutually converts communications for air conditioning equipment
connected to the AE-200/AE-50/EW-50 and for BACnet®communications.
5-1. Controller functions and BACnet®functions
The table below lists the supported controller functions which can monitor/operate from the web browser or the
AE-200/AE-50’s LCD and the BACnet®functions.
V: Supported
—: Not supported
Classification Item Controller function BACnet®function Remarks
Monitor/
Operation
On Off Setup V V
On Off State V V
Operational Mode Setup V V
Operational Mode State V V
Fan Speed Setup V V
Fan Speed State V V
Air Direction Setup V V
BACnet®does not support
“Downblow 20%” and “Auto”
settings.
Air Direction State V V
BACnet®does not support
“Downblow 20%” and “Auto”
settings.
Room Temp
[Water Temp] V V
Set Temp
[Set Water Temp] V V
Set Temp Cool V V
Set Temp Heat V V
Set Temp Auto V V
Set High Limit Setback Temp V V Only
AE-200A/AE-50A/EW-50A
Set Low Limit Setback Temp V V Only
AE-200A/AE-50A/EW-50A
Ventilation Mode Setup V V
Ventilation Mode State V V
Air To Water Mode Setup V V
Air To Water Mode State V V
Night Purge Setup V —
Night Purge State V V
Prohibition On Off V V
Prohibition Mode V V
Prohibition Filter Sign Reset
[Prohibition Circulating Water
Exchange Sign Reset]
V V
Prohibition Set Temperature V V
Prohibition Timer V —
Prohibition Air Direction V —
Prohibition Fan Speed V V
System Forced Off
(individual) V V
System Forced Off
(collective) V V
Thermo On Off State V *1 V *2
External Heat Source State — V Output status of indoor unit
CN24

18
WT07919X04
Classification Item Controller function BACnet®function Remarks
Alarm monitor Alarm Signal (Air conditioning
unit/PI controller) V V
Error Code V V
Controllers support 4-digit error
codes, and BACnet®supports
1- and 4-digit error codes.
System Alarm Signal V V
M-NET Communication State V V
Filter Sign
[Circulating Water Exchange
Sign]
V V
Filter Sign Reset
[Circulating Water Exchange
Sign Reset]
V V
Control
functions
Command Failure — V
High Limit/Low Limit Alarm V *3 V
Night Setback control V —
Schedule control V —
Interlock control V —
Data
management
functions
Energy management data/
Trend log V V
These are collected individually
in the body/BACnet®, so
sometimes the values of these
do not coincide.
Group Apportioned Electric
Energy V V
Interlocked Units Apportioned
Electric Energy V V
Group Apportionment
Parameter V V BACnet®function has only
parameters for outdoor units.
Interlocked Units
Apportionment Parameter V V BACnet®function has only
parameters for outdoor units.
PIcontroller Electric Energy
(Ch 1–4) V V
Pulse Input Electric Energy
(Metering device 1–4) V V
Other
functions
Unit of temperature setting V V
This setting on the
AE-200/AE-50/EW-50 and
the one on the BACnet®are
different. On the BACnet®,
only the unit of temperature
that is used for BACnet®
communication can be set.
Cumulative operation time/
FAN operation time V —
Time management V V
BACnet®router — V
LCD lock V —
*1 Supports only Thermo-ON time, Thermo-ON/OFF count.
Thermo-ON/OFF count cannot be monitored from the AE-200/AE-50’s LCD or web browser, but can be checked with the CSV output
function.
*2 Supports only Thermo-ON/OFF state.
*3 Alarms can occur when the upper and lower limit values are exceeded due to the AI controller (option).

19
WT07919X04
5-2. Basic functions
Sends commands from the building management system to air conditioning equipment. Additionally, sends the
air conditioning equipment status to the building management system.
5-2-1. Instance number for basic functions
The instance number is configured of the object type + fixed value “1” + group number + member number.
Instance number (6 digits in decimal notation): 0 1 xx xx
Objects that can be used with the AE-200/AE-50/EW-50 are shown in the table below.
Object Object
type
Instance
number
Units
RemarksInactive(0)*23 Active(1)
Text-1(1)*23 Text-2(2) Text-3(3) Text-4(4) Text-5(5)
On Off Setup BO 01xx01 Stop Run *20
On Off State BI 01xx02 Stop Run *20
Alarm Signal BI 01xx03 Normal Error
Error Code MI 01xx04
01: Normal
02: Other errors
03: Refrigeration system
fault
04: Water system error
05: Air system error
06: Electronic system error
07: Sensor fault
08: Communication error
09: System error
Operational Mode
Setup MO 01xx05
01: Cool
02: Heat
03: Fan
04: Auto
05: Dry
06: Setback
*1 *16 *18
*22
Operational Mode
State MI 01xx06
01: Cool
02: Heat
03: Fan
04: Auto
05: Dry
06: Setback
*1 *3 *16
*18 *22
Fan Speed Setup MO 01xx07
01: Low
02: High
03: Mid 2
04: Mid 1
05: Auto *4 *5 *18
Fan Speed State MI 01xx08
01: Low
02: High
03: Mid 2
04: Mid 1
05 Auto *4 *5 *18
*21
Room Temp
[Water Temp] AI 01xx09 ºF/ºC *16
Set Temp
[Set Water Temp] AV 01xx10 ºF/ºC *16
Filter Sign
[Circulating Water
Exchange Sign]
BI 01xx11 OFF ON
Filter Sign Reset
[Circulating Water
Exchange Sign
Reset]
BV 01xx12 Reset Void
Prohibition On Off BV 01xx13 Permit Prohibit *20
Prohibition Mode BV 01xx14 Permit Prohibit *16
Prohibition Filter Sign
Reset
[Prohibition
Circulating Water
Exchange Sign
Reset]
BV 01xx15 Permit Prohibit
Member number (01–99)
Group number (01–50), Collective (99), Others
“1” fixed
Object class
(by group: (0), by PI controller (4), by interlocked unit (6))

20
WT07919X04
Object Object
type
Instance
number
Units
RemarksInactive(0)*23 Active(1)
Text-1(1)*23 Text-2(2) Text-3(3) Text-4(4) Text-5(5)
Prohibition Set
Temperature BV 01xx16 Permit Prohibit *16
Prohibition Fan
Speed BV 01xx17 Permit Prohibit
M-NET
Communication
State
BI 01xx20 Normal Error
System
Forced
Off
individual
BV
01xx21
Reset Execute *10 *11
collective 019921
Air Direction Setup MO 01xx22 Horizontal Downblow
60%
Downblow
80%
Downblow
100% Swing *14 *16
*18
Air Direction State MI 01xx23 Horizontal Downblow
60%
Downblow
80%
Downblow
100% Swing *8 *14 *16
*18
Set Temp Cool AV 01xx24 ºF/ºC *16 *18
Set Temp Heat AV 01xx25 ºF/ºC *16 *18
Set Temp Auto AV 01xx26 ºF/ºC *16 *18
Set High Limit
Setback Temp AV 01xx27 ºF/ºC *16 *18
*19
Set Low Limit
Setback Temp AV 01xx28 ºF/ºC *16 *18
*19
Ventilation Mode
Setup MO 01xx35 Heat Recovery Bypass Auto *15 *18
Ventilation Mode
State MI 01xx36 Heat Recovery Bypass Auto *15 *18
*21
Air To Water Mode
Setup MO 01xx37 Heating Heating ECO Hot Water Anti- freeze Cooling *15 *16
*17
Air To Water Mode
State MI 01xx38 Heating Heating ECO Hot Water Anti- freeze Cooling *15 *16
*17
Group Apportioned
Electric Energy AC 01xx39 0.1 [kWh] *2
Interlocked Units
Apportioned Electric
Energy
AC 61aa39 0.1 [kWh] *2 *7
PIcontroller Electric
Energy 1–4 AC 41mm40–43 0.1 [kWh]
*2 *6 *13
*15 *16
*17 *18
Pulse Input Electric
Energy 1–4 AC 410040–43 0.1 [kWh]
*2 *12 *13
*15 *16
*17 *18
Group Apportionment
Parameter AC 01xx44 No Units *2
Interlocked Units
Apportionment
Parameter
AC 61aa44 No Units *2 *7
Night Purge State BI 01xx46 OFF ON *15 *18
Thermo On Off State BI 01xx47 OFF ON *16
System Alarm Signal BI 010048 Normal Error
Error Code Detail AI 01xx49 No Units
External Heat Source
State BI 01xx50 OFF ON
PIcontroller Alarm
Signal BI 41mm03 Normal Error *6
Trend Log Room
Temp LOG 01xx80 *9 *16 *24