HMS Networks Intesis IN485HIT001R000 User manual

BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
COMPATIBLE WITH HITACHI COMMERCIAL AND VRV AIR CONDITIONING
SYSTEMS
USER MANUAL
Version 2.0.4
Publicaon date 2023-08-23
ENGLISH

Copyright © 2023 Intesis
Disclaimer
The informaon in this document is for informaonal purposes only. Please inform HMS Networks of any
inaccuracies or omissions found in this document. HMS Networks disclaims any responsibility or liability for any
errors that may appear in this document.
HMS Networks reserves the right to modify its products in line with its policy of connuous product
development. The informaon in this document shall therefore not be construed as a commitment on the
part of HMS Networks and is subject to change without noce. HMS Networks makes no commitment to update
or keep current the informaon in this document.
The data, examples and illustraons found in this document are included for illustrave purposes and are only
intended to help improve understanding of the funconality and handling of the product. In view of the wide
range of possible applicaons of the product, and because of the many variables and requirements associated
with any parcular implementaon, HMS Networks cannot assume responsibility or liability for actual use
based on the data, examples or illustraons included in this document nor for any damages incurred during
installaon of the product. Those responsible for the use of the product must acquire sucient knowledge in
order to ensure that the product is used correctly in their specic applicaon and that the applicaon meets all
performance and safety requirements including any applicable laws, regulaons, codes and standards. Further,
HMS Networks will under no circumstances assume liability or responsibility for any problems that may arise as
a result from the use of undocumented features or funconal side eects found outside the documented scope
of the product. The eects caused by any direct or indirect use of such aspects of the product are undened and
may include e.g. compability issues and stability issues.

Table of Contents
1. Descripon, Compable AC systems, and Order Codes .................................................................. 1
2. General Informaon ................................................................................................................ 2
2.1. Intended Use of the User Manual ........................................................................................ 2
2.2. General Safety Informaon ................................................................................................ 2
2.3. Admonion Messages and Symbols ..................................................................................... 2
3. Overview ............................................................................................................................... 4
3.1. Introducon .................................................................................................................... 4
3.2. General Funconality ........................................................................................................ 5
3.3. Gateway Capacity ............................................................................................................. 5
3.4. Quickstart Guide .............................................................................................................. 6
4. BACnet Applicaon Specicaons .............................................................................................. 7
4.1. Objects ........................................................................................................................... 7
4.1.1. Supported Object Types ............................................................................................. 7
4.1.2. Member Objects ....................................................................................................... 9
4.1.2.1. Type: Gateway .................................................................................................. 9
4.1.2.2. Type: Indoor Unit .............................................................................................. 9
4.1.3. Objects and Properes ............................................................................................... 9
4.1.3.1. Hitachi AC Gateway (Device Object Type) ............................................................... 9
4.1.3.2. OnO_status (Binary Input Object Type) ............................................................... 12
4.1.3.3. OnO_command (Binary Output Object Type) ....................................................... 13
4.1.3.4. Mode_status (Mul-state Input Object Type) ......................................................... 14
4.1.3.5. Mode_command (Mul-state Output Object Type) ................................................. 15
4.1.3.6. Setpoint_status (Analog Input Object Type) ........................................................... 16
4.1.3.7. Setpoint_command (Analog Output Object Type) ................................................... 17
4.1.3.8. FanSpeed_status (Mul-state Input Object Type) .................................................... 18
4.1.3.9. FanSpeed_command (Mul-state Output Object Type) ............................................ 19
4.1.3.10. AirDireconUD_status (Mul-state Input Object Type) ........................................... 20
4.1.3.11. AirDireconUD_command (Mul-state Output Object Type) ................................... 21
4.1.3.12. RoomTemperature_status (Analog Input Object Type) ........................................... 22
4.1.3.13. RoomTemperature_command (Analog Output Object Type) ................................... 23
4.1.3.14. ErrorCode (Analog Input Object Type) ................................................................ 24
4.1.3.15. ErrorCodeM (Mul-state Input Object Type) ........................................................ 25
4.1.3.16. ErrorAcve (Binary Input Object Type) ................................................................ 26
4.1.3.17. ErrorAddress (Analog Input Object Type) ............................................................. 27
4.1.3.18. ErrorReset (Binary Output Object Type) .............................................................. 28
4.1.3.19. OnTimeCounter (Analog Value Object Type) ........................................................ 29
4.1.3.20. Occupancy (Mul-state Value Object Type) .......................................................... 30
4.1.3.21. OccupiedCoolSetPoint (Analog Value Object Type) ................................................ 31
4.1.3.22. OccupiedHeatSetPoint (Analog Value Object Type) ................................................ 32
4.1.3.23. UnoccupiedCoolSetPoint (Analog Value Object Type) ............................................ 33
4.1.3.24. UnoccupiedHeatSetPoint (Analog Value Object Type) ............................................ 34
4.1.3.25. OccupancyConnuousCheck (Binary Value Object Type) ........................................ 35
4.1.3.26. UnoccupiedDeadbandAcon (Binary Value Object Type) ........................................ 36
4.1.3.27. SerialNumber (Analog Input Object Type) ............................................................ 37
4.1.3.28. LockRemoteControl (Binary Value Object Type) .................................................... 38
4.1.3.29. UserSetPoint_status (Analog Input Object Type) ................................................... 39
4.1.3.30. VirtualTemperatureAcve (Binary Input Object Type) ............................................ 40
4.1.3.31. FilterSignAddress (Analog Input Object Type)switches ........................................... 41
4.1.3.32. DIP_SW_S1_status (Analog Input Object Type) ..................................................... 42
4.1.3.33. DIP_SW_S2_status (Analog Input Object Type) ..................................................... 43
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4

4.1.3.34. FilterSign (Binary Input Object Type) .................................................................. 44
4.1.3.35. FilterReset (Binary Output Object Type) .............................................................. 45
4.1.3.36. ResetBehaviour (Mulstate Value Object Type) .................................................... 46
4.2. Consideraons on BACnet Temperature Objects .................................................................... 47
5. Modbus Applicaon Specicaons ............................................................................................ 49
5.1. Implemented Modbus Funcons ........................................................................................ 49
5.1.1. Modbus Physical Layer .............................................................................................. 49
5.1.2. Modbus Register ...................................................................................................... 49
5.2. Consideraons on Modbus Temperature Registers ................................................................. 54
6. Connecons and Switches ....................................................................................................... 56
6.1. Connecon to an External Power Supply .............................................................................. 56
6.2. Connecon Procedure ...................................................................................................... 57
6.3. DIP Switches ................................................................................................................... 58
7. Setup Process ........................................................................................................................ 60
7.1. Prerequisites .................................................................................................................. 60
7.2. Physical Connecons Checking ........................................................................................... 60
7.3. LED Status ...................................................................................................................... 60
8. Restore the Factory Sengs ..................................................................................................... 62
9. Hardware Specicaons .......................................................................................................... 63
9.1. Technical Specicaons .................................................................................................... 63
9.2. Dimensions .................................................................................................................... 63
10. Error Codes .......................................................................................................................... 64
10.1. Gateway Codes ............................................................................................................. 64
10.2. AC System Codes ........................................................................................................... 64
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4

1. Descripon, Compable AC systems, and Order Codes
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Air Condioners.
IMPORTANT
This gateway is compable with Modbus from rmware version 1.0.2.0 onwards. If you
need to update your gateway, please contact the support department at hps://support.hms-
networks.com/hc/en-us.
Compable with commercial and VRV air condioning systems commercialized by Hitachi.
Use the compability tool to get a complete list of compable AC units: hps://compability.intesis.com/#
ORDER CODE LEGACY ORDER CODE
IN485HIT001R000 INMBSHIT001R000
Descripon, Compable AC systems, and Order Codes BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 1 of 65

2. General Informaon
2.1. Intended Use of the User Manual
This manual contains the main features of this Intesis gateway and the instrucons for its appropriate
installaon, conguraon, and operaon.
The contents of this manual should be brought to the aenon of any person who installs, congures, or
operates this gateway or any associated equipment.
Keep this manual for future reference during the installaon, conguraon, and operaon.
2.2. General Safety Informaon
IMPORTANT
Follow these instrucons carefully. Improper work may seriously harm your health and damage the
gateway and/or any other equipment connected to it.
Only technical personnel, following these instrucons and the country legislaon for installing electrical
equipment, can install and manipulate this gateway.
Install this gateway indoors, in a restricted access locaon, avoiding exposure to direct solar radiaon, water, high
relave humidity, or dust.
All wires (for communicaon and power supply, if needed) must only be connected to networks with indoor
wiring. All communicaon ports are considered for indoor use and must only be connected to SELV circuits.
Disconnect all systems from their power source before manipulang and connecng them to the gateway.
Use SELV-rated NEC class 2 or limited power source (LPS) power supply.
Supply always a correct voltage to power the gateway. See Technical Specicaons (page 63).
Respect the expected polarity of power and communicaon cables when connecng them to the gateway.
2.3. Admonion Messages and Symbols
DANGER
Instrucons that must be followed to avoid an imminently hazardous situaon that, if not avoided,
will result in death or severe injury.
WARNING
Instrucons that must be followed to avoid a potenally hazardous situaon that, if not avoided,
could result in death or severe injury.
CAUTION
Instrucon that must be followed to avoid a potenally hazardous situaon that, if not avoided,
could result in minor or moderate injury.
IMPORTANT
Instrucon that must be followed to avoid a risk of reduced funconality and/or damage to the
equipment or to avoid a network security risk.
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi General Informaon
Page 2 of 65 USER MANUAL Version 2.0.4

NOTE
Addional informaon which may facilitate installaon and/or operaon.
TIP
Helpful advice and suggesons.
NOTICE
Remarkable Informaon.
Admonion Messages and Symbols BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 3 of 65

3. Overview
NOTE
You can set this IN485HIT001R000 gateway as a BACnet MS/TP or a Modbus RTU server device using
the DIP switch block SW1 (posion 5). See DIP Switches (page 58).
3.1. Introducon
This document describes the integraon of Hitachi air condioning (AC) systems into BACnet or Modbus
installaons using the Intesis IN485HIT001R000 gateway.
The aim of this integraon is to monitor and control your Hitachi AC system using any BACnet or Modbus
soware soluon to remotely monitor and control your installaon. To do so, the gateway allows BACnet
communicaon by polling or subscripon requests (COV).
The gateway makes Hitachi AC indoor units available through independent BACnet objects/Modbus registers
to set the AC system properes and funconalies. The gateway allows ID mapping of xed BACnet objects/
Modbus registers. The conguraon process is very easy with the built-in DIP switch blocks. For more
informaon, see Connecons and Switches (page 56).
NOTE
This document assumes that the user is familiar with BACnet, Modbus, and Hitachi technologies and
their technical terms.
Figure 1. Integraon of Hitachi AC units into a BACnet or Modbus installaon using the Intesis IN485HIT001R000
gateway
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Overview
Page 4 of 65 USER MANUAL Version 2.0.4

3.2. General Funconality
The role of the gateway is to link the elements of Hitachi AC units to BACnet objects/Modbus registers.
The Intesis gateway connuously reads the Hitachi AC system and stores the status of all objects/registers in its
memory, ready to be served when requested from the BACnet/Modbus side.
The gateway also sends commands to the Hitachi AC system to control indoor units.
If the AC unit has a wired remote controller (RC), you can:
• Set the wired RC as header and the gateway as follower.
• Set the wired RC as follower and the gateway as header.
NOTE
• You can congure this behavior via the DIP switch SW1. See DIP Switches (page 58).
• For more informaon on the wired RC connecon, see Connecon Procedure (page 57).
3.3. Gateway Capacity
This Intesis gateway can integrate one or more Hitachi AC units and their associated elements.
Table 1. Gateway capacity
Element Max
Number of indoor units that the gateway can control 1 (see note)
Number of Hitachi AC signals available as objects in the
gateway
38
Number of AC signals available as Modbus registers 66
NOTE
You can connect several AC units to the gateway, but they will perform as one. This means you
cannot send dierent commands to dierent units.
General Funconality BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 5 of 65

3.4. Quickstart Guide
IMPORTANT
Disconnect all systems from the power source before connecng them to the gateway.
NOTE
DIN rail mounng inside a grounded cabinet or metal enclosure is recommended.
1. Mount the Intesis gateway in the desired installaon site.
2. Connect the gateway to the BACnet/Modbus network via its EIA-485 port.
3. Connect the gateway to the wired remote controller bus (AB). See details in Connecon Procedure (page
57).
4. Congure the gateway using the built-in DIP switches. See details in DIP Switches (page 58).
NOTE
Use the SW1 DIP switch's posion 5 to set the gateway as a BACnet or Modbus server device:
• BACnet MS/TP: Posion 5 is o (down). This is the default seng.
• Modbus RTU: Posion 5 is on (up).
5. Check the communicaon performance between the BACnet/Modbus bus and the AC system through the
gateway's LED indicators. See details in LED Status (page 60).
6. The Intesis gateway is ready to be used in your system.
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Quickstart Guide
Page 6 of 65 USER MANUAL Version 2.0.4

4. BACnet Applicaon Specicaons
The following secons provide the gateway's specicaons when set as a BACnet MS/TP server device.
4.1. Objects
4.1.1. Supported Object Types
Object type ID Supported Management point
Analog-Input 0
SetPoint_status
RoomTemperature_status
ErrorCode
ErrorAddress
DIP_SW_S1_status
DIP_SW_S2_status
SerialNumber
UserSetPoint_status
FilterSignAddress
Analog-Output 1 Setpoint_command
RoomTemperature_command
Analog-Value 2
OnTimeCounter
OccupiedCoolSetpoint
OccupiedHeatSetpoint
UnoccupiedCoolSetpoint
UnoccupiedHeatSetpoint
Averaging 18
Binary-Input 3
OnO_status
ErrorAcve
FilterSign
VirtualTempAcve
Binary-Output 4
OnO_command
FilterReset
ErrorReset
Binary-Value 5
OccupacyConnuousCheck
UnoccupiedDeadBandAcon
LockRemoteControl
Calendar 6
Command 7
Device 8 IN485HIT001R000
Event-Enrollment 9
File 10
Group 11
Life-Safety-Point 21
Life-Safety-Zone 22
Loop 12
Mulstate-Input 13
Mode_status
FanSpeed_status
AirDireconUD_status
ErrorCodeM
Mulstate-Output 14 Mode_command
BACnet Applicaon Specicaons BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 7 of 65

Object type ID Supported Management point
FanSpeed_command
AirDireconUD_command
Mulstate-Value 19 Occupancy
Reset behavior
Nocaon-Class 15
Program 16
Schedule 17
Trend-Log 20
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects
Page 8 of 65 USER MANUAL Version 2.0.4

4.1.2. Member Objects
4.1.2.1. Type: Gateway
Object name Descripon Object type Object instance
IN485HIT001R000 Hitachi commercial and VRF gateway Device 246000 (default)
4.1.2.2. Type: Indoor Unit
Object name Object type Object instance
OnO_status BI 0
OnO_command BO 0
Mode_status MI 0
Mode_command MO 0
SetPoint_status AI 0
Setpoint_command AO 0
FanSpeed_status MI 1
FanSpeed_command MO 1
AirDireconUD_status MI 2
AirDireconUD_command MO 2
RoomTemperature_status AI 1
RoomTemperature_command AO 1
ErrorCode AI 2
ErrorCodeM MI 4
ErrorAcve BI 1
ErrorAddress AI 2
ErrorReset BO 5
OnTimeCounter AV 0
Occupancy MV 0
OccupiedCoolSetpoint AV 1
OccupiedHeatSetpoint AV 2
UnoccupiedCoolSetpoint AV 3
UnoccupiedHeatSetpoint AV 4
OccupancyConnuousCheck BV 0
UnoccupiedDeadBandAcon BV 1
SerialNumber AI 11
LockRemoteControl BV 2
UserSetPoint_status AI 17
VirtualTempAcve BI 14
FilterSignAddress AI 18
DIP_SW_S1_status AI 9
DIP_SW_S2_status AI 10
FilterSign BI 6
FilterReset BO 4
ResetBehavior MV 4
4.1.3. Objects and Properes
4.1.3.1. Hitachi AC Gateway (Device Object Type)
Object_Idener: The gateway can be idened in the BACnet network automacally or manually:
Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 9 of 65

•Automac addressing (default): This mode uses a base address of 146000 + the MAC address number
selected in the DIP switch SW2.
•Manual addressing: The gateway switches to this mode when this property receives a value from the BACnet
side.
IMPORTANT
During the manual addressing mode, the gateway will not consider the MAC address congured
with the DIP switch SW2.
IMPORTANT
If Object_Idener is overwrien from BACnet, the DIP switch SW2 conguraon will not be
considered for device instance calculaon unl the gateway is reset to the factory sengs. See
Restore the Factory Sengs (page 62).
Object_name: In the Device Object, is congurable wring directly on this property.
Descripon: In the Device Object, is congurable wring directly on the property. Max. length: 63 characters.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener Device, 246000 (default value) R W
Object_Name CharacterString IN485HIT001R000 R W
Object_Type BACnetObjectType DEVICE (8) (Device Object Type) R R
System_Status BACnetDeviceStatus OPERATIONAL (0) R R
Vendor_Name CharacterString HMS Industrial Networks SLU R R
Vendor_Idener Unsigned16 246 R R
Model_Name CharacterString IN485HIT001R000 R R
Firmware_Revision CharacterString 1.0.0.0 R R
Applicaon_Soware_ Version CharacterString 1.0.0.0 R R
Locaon CharacterString "" O -
Descripon CharacterString RC interface
Hitachi AC interface O W
Protocol_Version Unsigned 1 R R
Protocol_Revision Unsigned 12 R R
Protocol_Services_ Supported BACnetServiceSupported - R R
Protocol_Object_Types_ Supported BACnetObjectTypes Supported Refer to secon Supported Object
Types (page 7) R R
Object_List BACnetArray[N] of
BACnetObjectIdener BACnetARRAY[N] R R
Structured_Object_List BACnetArray[N] of
BACnetObjectIdener - O -
Max_APDU_Length_ Accepted Unsigned 480 for MS/TP R R
Segmentaon_Supported BACnetSegmentaon SEGMENTED-BOTH (0) R R
Max_Segments_accepted Unsigned 16 O R
VT_Classes_Supported List of BACnetVTClass - O -
Acve_VT_Sessions List of BACnetVTSession - O -
Local_Date Date - O -
Local_Time Time - O -
UTC_Oset INTEGER - O -
Daylight_Savings_Status BOOLEAN - O -
APDU_Segment_Timeout Unsigned 3000 R R
APDU_Timeout Unsigned 3000 R R
Number_of_APDU_ Retries Unsigned 3 R R
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects
Page 10 of 65 USER MANUAL Version 2.0.4

Property Idener Property Datatype Value ASHRAE Gateway
List_Of_Session_Keys List of BACnetSessionKey - O -
Time_Synchronizaon_ Recipients List of BACnetRecipient - O -
Max_Master Unsigned 32 R W
Max_Info_Frames Unsigned 1 O R
Device_Address_Binding List of BACnetAddressBinding NULL (empty) R R
Database_Revision Unsigned 0 R R
Conguraon_Files BACnetArray[N] of
BACnetObjectIdener - O -
Last_Restore_Time BACnetTimeStamp - O -
Backup_Failure_Timeout Unsigned16 - O -
Acve_COV_ Subscripons List of BACnetCOVSubscripon List of BACnetCOVSubscripon O R
Slave_Proxy_Enable BACnetArray[N] of BOOLEAN - O -
Manual_Slave_Address_ Binding List of BACnetAddressBinding - O -
Auto_Slave_Discovery BACnetArray[N] of BOOLEAN - O -
Slave_Address_Binding BACnetAddressBinding - O -
Last_Restart_Reason BACnetRestartReason - O -
Time_Of_Device_Restart BACnetTimeStamp - O -
Restart_Nocaon_ Recipients List of BACnetRecipient - O -
UTC_Time_ Synchronizaon_
Recipients List of BACnetRecipient - O -
Time_Synchronizaon_ Interval Unsigned - O -
Align_Intervals BOOLEAN - O -
Interval_Oset Unsigned - O -
Prole_Name CharacterString - O -
Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 11 of 65

4.1.3.2. OnO_status (Binary Input Object Type)
It indicates if the indoor unit is turned on or o.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener (Binary Input, 0) R R
Object_Name CharacterString OnO_status R R
Object_Type BACnetObjectType BINARY_INPUT (3) R R
Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) R R
Descripon CharacterString - O -
Device_Type CharacterString - O -
Status_Flags BACnetStatusFlags {FALSE, FALSE/TRUE, FALSE, FALSE} R R
Event_State BACnetEventState STATE_NORMAL (0) R R
Reliability BACnetReliability NO_FAULT_DETECTED (0), UNRELIABLE_OTHER
(7) O R
Out_Of_Service BOOLEAN FALSE R R
Polarity BACnetPolarity NORMAL (0) R R
Inacve_Text CharacterString O O R
Acve_Text CharacterString On O R
Change_Of_State_Time BACnetDateme - O -
Change_Of_State_Count Unsigned - O -
Time_Of_State_Count_Reset BACnetDateme - O -
Elapsed_Acve_Time Unsigned - O -
Time_Of_Acve_Time_Reset BACnetDateme - O -
Time_Delay Unsigned - O -
Nocaon_Class Unsigned - O -
Alarm_Value BACnetBinaryPV - O -
Event_Enable BACnetEventTransionBits - O -
Acked_Transions BACnetEventTransionBits - O -
Nofy_Type BACnetNofyType - O -
Event_Time_Stamps BACnetArray[N] of BACnetTimeStamp - O -
Prole_Name CharacterString - O -
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects
Page 12 of 65 USER MANUAL Version 2.0.4

4.1.3.3. OnO_command (Binary Output Object Type)
It turns the indoor unit on or o.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener (Binary Output, 0) R R
Object_Name CharacterString OnO_command R R
Object_Type BACnetObjectType BINARY_OUTPUT (4) R R
Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) R W
Descripon CharacterString - O -
Device_Type CharacterString - O -
Status_Flags BACnetStatusFlags {FALSE, FALSE, FALSE, FALSE} R R
Event_State BACnetEventState STATE_NORMAL (0) R R
Reliability BACnetReliability NO_FAULT_DETECTED (0) O R
Out_Of_Service BOOLEAN FALSE R R
Polarity BACnetPolarity NORMAL (0) R R
Inacve_Text CharacterString O O R
Acve_Text CharacterString On O R
Change_Of_State_Time BACnetDateme - O -
Change_Of_State_Count Unsigned - O -
Time_Of_State_Count_Reset BACnetDateme - O -
Elapsed_Acve_Time Unsigned - O -
Time_Of_Acve_Time_Reset BACnetDateme - O -
Minimum_O_Time Unsigned32 - O -
Minimum_On_Time Unsigned32 - O -
Priority_Array BACnetPriorityArray BACnetPriorityArray R R
Relinquish_Default BACnetBinaryPV INACTIVE (0) R R
Time Delay Unsigned - O -
Nocaon_Class Unsigned - O -
Feedback_Value BACnetBinaryPV - O -
Event_Enable BACnetEventTransionBits - O -
Acked_Transions BACnetEventTransionBits - O -
Nofy_Type BACnetNofyType - O -
Event_Time_Stamps BACnetArray[N] of BACnetTimeStamp - O -
Prole_Name CharacterString - O -
Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 13 of 65

4.1.3.4. Mode_status (Mul-state Input Object Type)
It indicates the indoor unit's current mode.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener (Mul-state Input, 0) R R
Object_Name CharacterString Mode_status R R
Object_Type BACnetObjectType MULTISTATE_INPUT (13) R R
Present_Value Unsigned 1 .. 5 R R
Descripon CharacterString - O -
Device_Type CharacterString - O -
Status_Flags BACnetStatusFlags {FALSE, FALSE/TRUE, FALSE, FALSE} R R
Event_State BACnetEventState STATE_NORMAL (0) R R
Reliability BACnetReliability NO_FAULT_DETECTED (0), UNRELIABLE_OTHER(7) O R
Out_Of_Service BOOLEAN FALSE R R
Number_Of_States Unsigned 5 R R
State_Text BACnetArray[N] of CharacterString Check the Mode status table below. O R
Time_Delay Unsigned - O -
Nocaon_Class Unsigned - O -
Alarm_Values List of Unsigned - O -
Fault_Values List of Unsigned - O -
Event_Enable BACnetEventTransionBits - O -
Acked_Transions BACnetEventTransionBits - O -
Nofy_Type BACnetNofyType - O -
Event_Time_Stamps BACnetArray[N] of BACnetTimeStamp - O -
Prole_Name CharacterString - O -
Table 2. Mode status
Present_Value State_Text
1 Heat
2 Cool
3 Fan
4 Dry
5 Auto
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects
Page 14 of 65 USER MANUAL Version 2.0.4

4.1.3.5. Mode_command (Mul-state Output Object Type)
It sets the AC indoor unit's mode.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener (Mul-state Output,0) R R
Object_Name CharacterString Mode_command R R
Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) R R
Present_Value Unsigned 1 .. 5 R W
Descripon CharacterString - O -
Device_Type CharacterString - O -
Status_Flags BACnetStatusFlags {FALSE, FALSE, FALSE, FALSE} R R
Event_State BACnetEventState STATE_NORMAL (0) R R
Reliability BACnetReliability NO_FAULT_DETECTED (0) O R
Out_Of_Service BOOLEAN FALSE R R
Number_Of_States Unsigned 5 R R
State_Text BACnetArray[N] of CharacterString Check the Mode command table below O R
Priority_Array BACnetPriorityArray BACnetPriorityArray R R
Relinquish_Default Unsigned 1 R R
Time_Delay Unsigned - O -
Nocaon_Class Unsigned - O -
Feedback_Value Unsigned - O -
Event_Enable BACnetEventTransionBits - O -
Acked_Transions BACnetEventTransionBits - O -
Nofy_Type BACnetNofyType - O -
Event_Time_Stamps BACnetArray[N] of BACnetTimeStamp - O -
Prole_Name CharacterString - O -
Table 3. Mode command
Present_Value State_Text
1 Heat
2 Cool
3 Fan
4 Dry
5 Auto
Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi
USER MANUAL Version 2.0.4 Page 15 of 65

4.1.3.6. Setpoint_status (Analog Input Object Type)
It indicates the current temperature setpoint for the indoor unit.
Property Idener Property Datatype Value ASHRAE Gateway
Object_Idener BACnetObjectIdener (Analog Input, 0) R R
Object_Name CharacterString SetPoint_status R R
Object_Type BACnetObjectType ANALOG_INPUT (0) R R
Present_Value REAL 16 .. 32°C / 61 .. 90°F R R
Descripon CharacterString - O -
Device_Type CharacterString - O -
Status_Flags BACnetStatusFlags {FALSE, FALSE/TRUE, FALSE, FALSE} R R
Event_State BACnetEventState STATE_NORMAL (0) R R
Reliability BACnetReliability NO_FAULT_DETECTED (0), UNRELIABLE_OTHER (7) O R
Out_Of_Service BOOLEAN FALSE R R
Update_Interval Unsigned - O -
Units BACnetEngineeringUnits Celsius degrees (62)
Fahrenheit degrees (64) R R
Min_Pres_Value REAL 16°C / 61°F O R
Max_Pres_Value REAL 32°C / 90°F O R
Resoluon REAL - O -
COV_Increment REAL 0 O W
Time_Delay Unsigned - O -
Nocaon_Class Unsigned - O -
High_Limit REAL - O -
Low_Limit REAL - O -
Deadband REAL - O -
Limit_Enable BACnetLimitEnable - O -
Event_Enable BACnetEventTransionBits - O -
Acked_Transions BACnetEventTransionBits - O -
Nofy_Type BACnetNofyType - O -
Event_Time_Stamps BACnetArray[N] of BACnetTimeStamp - O -
Prole_Name CharacterString - O -
NOTE
You can set the temperature scale in Celsius or Fahrenheit via the DIP switches. More informaon in
DIP Switches (page 58).
BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects
Page 16 of 65 USER MANUAL Version 2.0.4