HMS Networks Intesis IN485HIT001R000 User Manual
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HMS Networks Intesis IN485HIT001R000 User Manual

Hitachi commercial and vrf systems to bacnet ms/tp and modbus rtu
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ENGLISH
IN485HIT001R000 GATEWAY
                                            Hitachi Commercial and VRF Systems
to BACnet MS/TP and Modbus RTU
USER MANUAL
Version 2.0.7
Publication date 2024-07-04

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Summary of Contents for HMS Networks Intesis IN485HIT001R000

  • Page 1 ENGLISH IN485HIT001R000 GATEWAY                                             Hitachi Commercial and VRF Systems to BACnet MS/TP and Modbus RTU USER MANUAL Version 2.0.7 Publication date 2024-07-04...
  • Page 2 The information in this document shall therefore not be construed as a commitment on the part of HMS Networks and is subject to change without notice. HMS Networks makes no commitment to update or keep current the information in this document.

  • Page 3: Table Of Contents

    IN485HIT001R000 Gateway Table of Contents 1. Description, Compatible AC systems, and Order Codes ..............1 2. General Information ........................ 2 2.1. Intended Use of the User Manual ..................2 2.2. General Safety Information ....................2 2.3. Admonition Messages and Symbols ..................3 3.
  • Page 4 IN485HIT001R000 Gateway 7.1.3.20. ErrorReset (Binary Output Object Type) .............. 38 7.1.3.21. OnTimeCounter (Analog Value Object Type) ............39 7.1.3.22. FilterSign (Binary Input Object Type) ..............40 7.1.3.23. FilterSignAddress (Analog Input Object Type) ............41 7.1.3.24. FilterReset (Binary Output Object Type) .............. 42 7.1.3.25.

  • Page 5: Description, Compatible Ac Systems, And Order Codes

    Description, Compatible AC systems, and Order Codes IN485HIT001R000 Gateway 1. Description, Compatible AC systems, and Order Codes BACnet MS/TP and Modbus RTU Gateway for Hitachi Air Conditioners. Compatible with commercial and VRF air conditioning systems commercialized by Hitachi. Use the compatibility tool to get a complete list of compatible units: https://compatibility.intesis.com/# IMPORTANT This gateway is compatible with Modbus from firmware version 1.0.2.0 onwards.

  • Page 6: General Information

    IN485HIT001R000 Gateway General Information 2. General Information 2.1. Intended Use of the User Manual This manual contains the main features of this Intesis gateway and the instructions for its appropriate installation, configuration, and operation. The contents of this manual should be brought to the attention of any person who installs, configures, or operates this gateway or any associated equipment.

  • Page 7: Admonition Messages And Symbols

    Admonition Messages and Symbols IN485HIT001R000 Gateway 2.3. Admonition Messages and Symbols DANGER Instructions that must be followed to avoid an imminently hazardous situation that, if not avoided, will result in death or severe injury. WARNING Instructions that must be followed to avoid a potentially hazardous situation that, if not avoided, could result in death or severe injury.

  • Page 8: Quickstart Guide For The In485Hit001R000 Gateway

    IN485HIT001R000 Gateway Quickstart Guide for the IN485HIT001R000 Gateway 3. Quickstart Guide for the IN485HIT001R000 Gateway IMPORTANT Disconnect all systems from power before connecting them to the gateway. Mount the gateway in the desired installation site. This gateway can be mounted over a DIN rail, a wall, or inside the indoor unit (in some indoor unit models only).

  • Page 9: Overview

    SW1-5 (DIP switch 1, position 5). See DIP Switches (page 11). Figure 1. Integration of Hitachi AC units into a BACnet installation using the Intesis IN485HIT001R000 gateway Figure 2. Integration of Hitachi AC units into a Modbus installation using the Intesis IN485HIT001R000 gateway NOTE This document assumes that the user is familiar with BACnet, Modbus, and Hitachi technologies and their technical terms.

  • Page 10: Inside The Package

    4.4. General Functionality With this Intesis IN485HIT001R000 gateway, you can easily integrate Hitachi commercial and VRF air conditioning systems into an installation based on BACnet MS/TP or Modbus RTU. To do so, the gateway acts as a server device of the installation itself, accessing all signals from the AC indoor unit.

  • Page 11: Hardware

    Hardware IN485HIT001R000 Gateway 5. Hardware 5.1. Mounting Mount the gateway inside the AC indoor unit, over a wall, or over a DIN rail. IMPORTANT Do not mount the gateway in air-handling units or conducts. NOTE DIN rail mounting inside a grounded metallic cabinet is recommended. Mounting the gateway inside the AC indoor unit Look for the proper place to mount the gateway, taking into consideration the following: IMPORTANT...

  • Page 12: Connection Procedure

    IN485HIT001R000 Gateway Connection Procedure NOTE For some DIN rails, to complete step 2, you may need a small screwdriver or similar to pull the bottom clip down. 5.2. Connection Procedure CAUTION Disconnect all systems from power before connecting them to the gateway. IMPORTANT Keep communication cables away from power and ground wires.

  • Page 13: Coexistence Of The Gateway With A Remote Controller

    Coexistence of the Gateway with a Remote Controller IN485HIT001R000 Gateway Connection to the wired remote controller (RC) bus NOTE Mount the gateway in the desired place before wiring it. Connect the gateway at any point of the AB bus. NOTE •...

  • Page 14: Connection To An External Power Supply

    IN485HIT001R000 Gateway Connection to an External Power Supply NOTE Although it is not mandatory, we recommend connecting a wired RC in the bus since it may be necessary to establish proper communication between the gateway and some indoor units. IMPORTANT The roles of the gateway and the wired RC affect certain functions, such as using a temperature sensor from the BMS side or the Virtual Temperature function.

  • Page 15: Dip Switches

    DIP Switches IN485HIT001R000 Gateway 5.5. DIP Switches The gateway includes three DIP switches: SW1 (8 switches) at the bottom and SW2 (8 switches) and SW3 (3 switches) at the top. Table 1. SW1 (P1, P2, P5): Gateway configuration; (P6 to P8): BACnet MS/TP or Modbus RTU baudrate Binary value Position Description...
  • Page 16 IN485HIT001R000 Gateway DIP Switches Table 2. SW2 (BACnet MS/TP) (P1 to P7): BACnet MS/TP MAC address; (P8): Temperature unit (°C/°F) Binary value Position BACnet address Description b0 .. b7 0000000X 1000000X 0100000X 1100000X 1011111X 0111111X 1111111X XXXXXXX0 Temperature in Celsius (default) XXXXXXX1 Temperature in Fahrenheit Table 3.

  • Page 17: Led Indicators

    LED Indicators IN485HIT001R000 Gateway 5.6. LED Indicators There are two LEDs at the lower side of the gateway, between the DIP switch block SW1 and the Power connector. When powering the gateway up, both LEDs blink once and then turn off. After that, LEDs will behave as described in the table below: Status Description...

  • Page 18: Technical Specifications

    IN485HIT001R000 Gateway Technical Specifications 5.7. Technical Specifications Plastic, type PC (UL 94 V-0) Housing Net dimensions (HxWxD): 93 x 53 x 58 mm / 3.7 x 2.1 x 2.3” Color: Light grey. RAL 7035 Weight 85 g (3 oz) Wire cross-section/gauge per terminal: One core: 0.2 ..

  • Page 19: Restore The Factory Settings

    Restore the Factory Settings IN485HIT001R000 Gateway 6. Restore the Factory Settings To restore the gateway to its factory settings, proceed as follows: Set all switches from DIP switches SW1 and SW2 to the ON position. Reboot the gateway: Power it OFF. Power it ON.

  • Page 20: Bacnet Specifications

    IN485HIT001R000 Gateway BACnet Specifications 7. BACnet Specifications The following sections provide the gateway's specifications when it is set for BACnet MS/TP. 7.1. Objects 7.1.1. Supported Object Types Object type Analog-Input Analog-Output Analog-Value Binary-Input Binary-Output Binary-Value Device Multistate-Input Multistate-Output Multistate-Value 7.1.2. Member Objects 7.1.2.1.
  • Page 21 Objects IN485HIT001R000 Gateway Object name Object type Object instance OnTimeCounter FilterSign FilterSingAddress FilterReset Occupancy OccupiedCoolSetpoint OccupiedHeatSetpoint UnoccupiedCoolSetpoint UnoccupiedHeatSetpoint OccupancyContinuousCheck UnoccupiedDeadBandAction LockRemoteControl SerialNumber DIP_SW_S1_status DIP_SW_S2_status ResetBehavior USER MANUAL Version 2.0.7 Page 17 of 70...

  • Page 22: Objects And Properties

    IN485HIT001R000 Gateway Objects 7.1.3. Objects and Properties 7.1.3.1. Hitachi AC Gateway (Device Object Type) Object_Identifier: The gateway can be identified in the BACnet network automatically or manually: • Automatic addressing (default): This mode uses a base address of 246000 + the MAC address number selected in the DIP switch SW2.
  • Page 23 Objects IN485HIT001R000 Gateway Property Identifier Property Datatype Value ASHRAE Gateway UTC_Offset INTEGER Daylight_Savings_Status BOOLEAN APDU_Segment_Timeout Unsigned 3000 APDU_Timeout Unsigned 3000 Number_of_APDU_Retries Unsigned List_Of_Session_Keys List of BACnetSessionKey Time_Synchronization_Recipients List of BACnetRecipient Max_Master Unsigned Max_Info_Frames Unsigned Device_Address_Binding List of BACnetAddressBinding NULL (empty) Database_Revision Unsigned BACnetArray[N] of...

  • Page 24: Onoff_Status (Binary Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.2. OnOff_status (Binary Input Object Type) It indicates if the indoor unit is turned on or off. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Input, 0) Object_Name CharacterString OnOff_status Object_Type BACnetObjectType BINARY_INPUT (3) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description...

  • Page 25: Onoff_Command (Binary Output Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.3. OnOff_command (Binary Output Object Type) It turns the indoor unit on or off. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Output, 0) Object_Name CharacterString OnOff_command Object_Type BACnetObjectType BINARY_OUTPUT (4) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description CharacterString Device_Type...

  • Page 26: Mode_Status (Multistate Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.4. Mode_status (Multistate Input Object Type) It indicates the indoor unit's current mode. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Input, 0) Object_Name CharacterString Mode_status Object_Type BACnetObjectType MULTISTATE_INPUT (13) Present_Value Unsigned 1 .. 5 Description CharacterString Device_Type...

  • Page 27: Mode_Command (Multistate Output Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.5. Mode_command (Multistate Output Object Type) It sets the AC indoor unit's mode. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Output,0) Object_Name CharacterString Mode_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) Present_Value Unsigned 1 .. 5 Description CharacterString Device_Type CharacterString...

  • Page 28: Setpoint_Status (Analog Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.6. Setpoint_status (Analog Input Object Type) It reports the temperature setpoint requested to the indoor unit. NOTE To know more, see Considerations on Temperature Signals (page 67). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Input, 0) Object_Name CharacterString SetPoint_status...

  • Page 29: Usersetpoint_Status (Analog Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.7. UserSetpoint_status (Analog Input Object Type) It reports the value written in the Setpoint_command object. NOTE To know more, see Considerations on Temperature Signals (page 67). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Input, 17) Object_Name CharacterString UserSetPoint_status...

  • Page 30: Setpoint_Command (Analog Output Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.8. Setpoint_command (Analog Output Object Type) It is used to request a temperature setpoint from the BACnet side. NOTE To know more, see Considerations on Temperature Signals (page 67). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Output, 0) Object_Name...

  • Page 31: Virtualtemperatureactive (Binary Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.9. VirtualTemperatureActive (Binary Input Object Type) It indicates if the Virtual Temperature function is active or inactive. NOTE The Virtual Temperature function allows the gateway to set the reference temperature using the value reported by a sensor connected to the BMS. For more information, see Ambient Temperature and Virtual Temperature Function (page 63).

  • Page 32: Fanspeed_Status (Multistate Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.10. FanSpeed_status (Multistate Input Object Type) It indicates the indoor unit's fan speed. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Input, 1) Object_Name CharacterString FanSpeed_status Object_Type BACnetObjectType MULTISTATE_INPUT (13) Present_Value Unsigned 1 .. 5 Description CharacterString Device_Type...

  • Page 33: Fanspeed_Command (Multistate Output Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.11. FanSpeed_command (Multistate Output Object Type) It sets the indoor unit's fan speed. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Output, 1) Object_Name CharacterString FanSpeed_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) Present_Value Unsigned 1 .. 5 Description CharacterString Device_Type...

  • Page 34: Airdirectionud_Status (Multistate Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.12. AirDirectionUD_status (Multistate Input Object Type) It indicates the indoor unit's vertical air direction (up-down) status. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Input, 2) Object_Name CharacterString AirDirectionUD_status Object_Type BACnetObjectType MULTISTATE_INPUT(13) Present_Value Unsigned 1 .. 8 Description CharacterString Device_Type...

  • Page 35: Airdirectionud_Command (Multistate Output Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.13. AirDirectionUD_command (Multistate Output Object Type) It sets the indoor unit's vertical air direction (up-down). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Output, 2) Object_Name CharacterString AirDirectionUD_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) Present_Value Unsigned 1 .. 8 Description CharacterString Device_Type...

  • Page 36: Roomtemperature_Status (Analog Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.14. RoomTemperature_status (Analog Input Object Type) It reports the ambient temperature perceived by the sensor from the AC system side. It can be reported by the indoor unit or the wired remote controller's sensor. NOTE To know more, see Ambient Temperature and Virtual Temperature Function (page 63).

  • Page 37: Roomtemperature_Command (Analog Output Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.15. RoomTemperature_command (Analog Output Object Type) It is used to write the ambient temperature perceived by a sensor from the BACnet side. NOTE To know more, see Considerations on Temperature Signals (page 67). Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 38: Errorcode (Analog Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.16. ErrorCode (Analog Input Object Type) It indicates the AC system's current error. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Input, 2) Object_Name CharacterString ErrorCode Object_Type BACnetObjectType ANALOG_INPUT (0) Present_Value REAL -1 .. 349 Description CharacterString Device_Type...

  • Page 39: Errorcodem (Multistate Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.17. ErrorCodeM (Multistate Input Object Type) It indicates the AC system's current error. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Input, 4) Object_Name CharacterString ErrorCodeM Object_Type BACnetObjectType MULTISTATE_INPUT(13) Present_Value Unsigned 1 .. 45 Description CharacterString Device_Type CharacterString...

  • Page 40: Erroractive (Binary Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.18. ErrorActive (Binary Input Object Type) It indicates if there is an active error in the AC system. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Input, 1) Object_Name CharacterString ErrorActive Object_Type BACnetObjectType BINARY_INPUT (3) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1)

  • Page 41: Erroraddress (Analog Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.19. ErrorAddress (Analog Input Object Type) It indicates the address of the indoor unit which is reporting the error. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Analog Input, 4) Object_Name CharacterString ErrorAddress Object_Type BACnetObjectType ANALOG_INPUT (0) Present_Value REAL Description...

  • Page 42: Errorreset (Binary Output Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.20. ErrorReset (Binary Output Object Type) It resets the error signal. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Binary Output, 5) Object_Name CharacterString ErrorReset Object_Type BACnetObjectType BINARY_OUTPUT (4) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description CharacterString Device_Type...

  • Page 43: Ontimecounter (Analog Value Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.21. OnTimeCounter (Analog Value Object Type) It indicates the AC unit running time. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Value, 0) Object_Name CharacterString OnTimeCounter Object_Type BACnetObjectType ANALOG_VALUE (2) Present_Value REAL 0 .. 65535 Description CharacterString Status_Flags...

  • Page 44: Filtersign (Binary Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.22. FilterSign (Binary Input Object Type) It indicates the status of the filter. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Binary Input, 1) Object_Name CharacterString FilterSign Object_Type BACnetObjectType BINARY_OUTPUT (4) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description CharacterString Device_Type...

  • Page 45: Filtersignaddress (Analog Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.23. FilterSignAddress (Analog Input Object Type) It indicates the AC indoor unit address reporting the filter signal. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Analog Input, 18) Object_Name CharacterString FilterSignAddress Object_Type BACnetObjectType ANALOG_INPUT (0) Present_Value REAL Description CharacterString...

  • Page 46: Filterreset (Binary Output Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.24. FilterReset (Binary Output Object Type) It resets the filter signal. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Binary Output, 4) Object_Name CharacterString FilterReset Object_Type BACnetObjectType BINARY_OUTPUT (4) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description CharacterString Device_Type...

  • Page 47: Occupancy (Multistate Value Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.25. Occupancy (Multistate Value Object Type) It indicates the current occupancy status. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multistate Value, 0) Object_Name CharacterString Occupancy Object_Type BACnetObjectType MULTISTATE_VALUE (19) Present_Value...

  • Page 48: Occupiedcoolsetpoint (Analog Value Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.26. OccupiedCoolSetPoint (Analog Value Object Type) It indicates the temperature setpoint when the room is occupied, the cool mode is selected, and the occupancy object is enabled. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE...

  • Page 49: Occupiedheatsetpoint (Analog Value Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.27. OccupiedHeatSetPoint (Analog Value Object Type) It indicates the temperature setpoint when the room is occupied, the heat mode is selected, and the occupancy object is enabled. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE...

  • Page 50: Unoccupiedcoolsetpoint (Analog Value Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.28. UnoccupiedCoolSetPoint (Analog Value Object Type) It indicates the setpoint when the room is unoccupied, the cool mode is selected, and the occupancy object is enabled. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE...

  • Page 51: Unoccupiedheatsetpoint (Analog Value Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.29. UnoccupiedHeatSetPoint (Analog Value Object Type) It indicates the setpoint temperature when the room is unoccupied, the heat mode is selected, and the occupancy object is enabled. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE...

  • Page 52: Occupancycontinuouscheck (Binary Value Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.30. OccupancyContinuousCheck (Binary Value Object Type) It indicates if the system is continuously checking the setpoint and occupancy conditions. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Value, 0) Object_Name CharacterString...

  • Page 53: Unoccupieddeadbandaction (Binary Value Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.31. UnoccupiedDeadbandAction (Binary Value Object Type) It indicates the action to be performed when Unoccupancy is enabled, and Room Temperature is within the deadband. NOTE To know more, see Occupancy Function (page 55). Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 54: Lockremotecontrol (Binary Value Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.32. LockRemoteControl (Binary Value Object Type) It is used to lock or unlock the wired remote controller. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Value, 2) Object_Name CharacterString LockRemoteControl Object_Type BACnetObjectType BINARY_VALUE (5) Present_Value BACnetBinaryPV INACTIVE (0) / ACTIVE (1) Description...

  • Page 55: Dip_Sw_S1_Status (Analog Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.33. DIP_SW_S1_status (Analog Input Object Type) It indicates the status of the DIP switch block SW1 in decimal value. To get the status of each individual switch (position) of SW1, just convert it to binary. The gateway reads this value only when booting up. Property Identifier Property Datatype Value...

  • Page 56: Dip_Sw_S2_Status (Analog Input Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.34. DIP_SW_S2_status (Analog Input Object Type) It indicates the status of the DIP switch block SW2 in decimal value. To get the status of each individual switch (position) of SW2, just convert it to binary. The gateway reads this value only when booting up. Property Identifier Property Datatype Value...

  • Page 57: Serialnumber (Analog Input Object Type)

    Objects IN485HIT001R000 Gateway 7.1.3.35. SerialNumber (Analog Input Object Type) It indicates the serial number of the gateway with the pattern 000EXXXXX, where: • 000E is constant and not included in the Present Value property. • XXXXX is the unique device serial number. This is the information provided by the Present Value. Property Identifier Property Datatype Value...

  • Page 58: Resetbehaviour (Multistate Value Object Type)

    IN485HIT001R000 Gateway Objects 7.1.3.36. ResetBehaviour (Multistate Value Object Type) It indicates the Reset behavior of the gateway. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Multistate Value, 4) Object_Name CharacterString ResetBehaviour Object_Type BACnetObjectType MULTISTATE_Value (19) Present_Value Unsigned 1 .. 2 Description CharacterString Device_Type...

  • Page 59: Occupancy Function

    Occupancy Function IN485HIT001R000 Gateway 7.2. Occupancy Function IMPORTANT The Occupancy function is only available for BACnet. The Occupancy function determines the AC unit's behavior depending on the presence or absence of people in the room. This signal is processed directly in the Intesis gateway and has the capacity to modify three parameters of the AC system: Setpoint, Mode, and On/Off.
  • Page 60 IN485HIT001R000 Gateway Occupancy Function – If this object's value is 0 (inactive), the gateway only checks the occupancy when the occupancy status changes. • Unoccupied Deadband Action: It determines the AC unit's behavior when the room is unoccupied and the ambient temperature is within the deadband.

  • Page 61: Modbus Specifications

    Modbus Specifications IN485HIT001R000 Gateway 8. Modbus Specifications The following sections provide the gateway's specifications when it is set for Modbus RTU. 8.1. Implemented Modbus Functions The IN485HIT001R000 gateway implements the following standard Modbus functions: • 03: Read Holding Registers • 04: Read Input Registers •...
  • Page 62 IN485HIT001R000 Gateway Implemented Modbus Functions Register Register Register name Possible values protocol address address 1 .. 7: Position 1 .. Position 7 10: Swing VANE U/D POSITION NOTE The available vane positions may vary depending on the AC model. TEMPERATURE (USER) SETPOINT -32768 (Initialization value) Value in °C;...
  • Page 63 Implemented Modbus Functions IN485HIT001R000 Gateway Register Register Register name Possible values protocol address address OPEN WINDOW TIMEOUT (IN MINUTES) 0 .. 30 minutes NOTE Once window contact is "open", Default value: 30 this is the time in minutes before turning the AC unit off. BAUDRATE Baudrate currently selected via DIP switch SW2.
  • Page 64 IN485HIT001R000 Gateway Implemented Modbus Functions Register Register Register name Possible values protocol address address ERROR RESET 1: Reset SWITCH VALUE DIP switches current value 0: Disabled ANTIFREEZE OPERATION 1: Enabled Value in °C; °F; x1; x10 INPUT REFERENCE TEMPERATURE (Feedback) NOTE Set the temperature units via the DIP switch SW2.
  • Page 65 Implemented Modbus Functions IN485HIT001R000 Gateway Register Register Register name Possible values protocol address address 0: Auto 1: Quiet FANSP DEFAULT 2: Low 1103 1104 3: Med 4: High -32768 (Initialization value) SETPTEMP DEFAULT 16 .. 30 (°C) (0: undetermined) 1104 1105 61 ..
  • Page 66 IN485HIT001R000 Gateway Implemented Modbus Functions Register Register Register name Possible values protocol address address Indicates the available states of the signal. Each bit in the RUNTIME_MODE_RESTRICTIONS_MAP 2012 2013 register has its own meaning. See the table below. Table 14. MODE_MAP bit characterization Bit 15 Bit 04 Bit 03...

  • Page 67: Ambient Temperature And Virtual Temperature Function

    Ambient Temperature and Virtual Temperature Function IN485HIT001R000 Gateway 9. Ambient Temperature and Virtual Temperature Function The IN485HIT001R000 gateway enables the use of a temperature sensor from the BACnet/Modbus-based BMS. The reason for using this sensor could be that it is better positioned than the sensor in the indoor unit or the wired remote controller.
  • Page 68 IN485HIT001R000 Gateway Ambient Temperature and Virtual Temperature Function Set the Hitachi AC system to read the temperature provided by the sensor inside the wired RC. NOTE This configuration must be performed by a Hitachi authorized installer through the remote controller. At this point, the indoor unit could report an error warning that there is an abnormality in the wired RC's thermistor.
  • Page 69 Ambient Temperature and Virtual Temperature Function IN485HIT001R000 Gateway In practical terms, when you write a value in the BACnet object RoomTemperature_command (Analog Output)/ Modbus register Input sensor temperature (protocol address register 22 / PLC address register 23), the gateway activates the Virtual Temperature function, using this value to recalculate the indoor unit's reference temperature.
  • Page 70 IN485HIT001R000 Gateway Ambient Temperature and Virtual Temperature Function Read the temperature value reported by a temperature sensor from the BMS side. Write this value in the BACnet object RoomTemperature_command (Analog Output)/Modbus register Input sensor temperature (protocol address register 22 / PLC address register 23). NOTE At this point, the Virtual Temperature function is automatically activated.

  • Page 71: Considerations On Temperature Signals

    Considerations on Temperature Signals IN485HIT001R000 Gateway Pay special attention to the BACnet object RoomTemperature_command (Analog Output)/Modbus register Input sensor temperature (protocol address register 22 / PLC address register 23), which are dedicated to write the value reported by the BMS sensor. NOTE The following section provides an extended explanation of all the BACnet objects/Modbus registers dedicated to the temperature signals and to the Virtual Temperature function.
  • Page 72 IN485HIT001R000 Gateway Considerations on Temperature Signals NOTE ** This Modbus register may be missing in your gateway since it is only implemented in the 485 series. However, the Virtual Temperature function is not dependent on this register, and it is available in your gateway if its order code is listed in the note at the beginning of this section.

  • Page 73: Error Codes

    Error Codes IN485HIT001R000 Gateway 10. Error Codes 10.1. Gateway Codes Error CodeM Error Code Error in Controller Error Category Error Description Value Text Intesis AC Interface No active error Error in the communication of -1 (65535) CommError Intesis AC Interface Intesis AC Interface or the Remote Controller with the AC Unit MainSub RC...
  • Page 74 IN485HIT001R000 Gateway AC System Codes Discharge air thermistor system E-32 error E-35 Contamination sensor error E-36 Humidity sensor error E-38 Remote control thermistor error E-39 Radiation sensor error E-43 High pressure switch sensor E-44 Protection devices activated E-45 Outdoor unit PCB assembly failure Pressure High pressure switch (HPS) E-46...

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