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

Bacnet ms/tp and modbus rtu server gateway
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ENGLISH
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
Publication date 2023-08-23

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Summary of Contents for HMS Networks Intesis IN485HIT001R000

  • Page 1 ENGLISH 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 Publication date 2023-08-23...
  • 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

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 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.
  • Page 4 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 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 (Multistate Value Object Type) ............ 46 4.2. Considerations on BACnet Temperature Objects ..............47 5.

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

    Description, Compatible AC systems, and Order Codes BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 1. Description, Compatible AC systems, and Order Codes BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Air Conditioners. IMPORTANT This gateway is compatible with Modbus from firmware version 1.0.2.0 onwards. If you need to update your gateway, please contact the support department at https://support.hms- networks.com/hc/en-us.

  • Page 6: General Information

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 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 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi NOTE Additional information which may facilitate installation and/or operation. Helpful advice and suggestions. NOTICE Remarkable Information. USER MANUAL Version 2.0.4 Page 3 of 65...

  • Page 8: Overview

    This document assumes that the user is familiar with BACnet, Modbus, and Hitachi technologies and their technical terms. Figure 1. Integration of Hitachi AC units into a BACnet or Modbus installation using the Intesis IN485HIT001R000 gateway Page 4 of 65...

  • Page 9: General Functionality

    General Functionality BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 3.2. General Functionality The role of the gateway is to link the elements of Hitachi AC units to BACnet objects/Modbus registers. The Intesis gateway continuously 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.

  • Page 10: Quickstart Guide

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Quickstart Guide 3.4. Quickstart Guide IMPORTANT Disconnect all systems from the power source before connecting them to the gateway. NOTE DIN rail mounting inside a grounded cabinet or metal enclosure is recommended. Mount the Intesis gateway in the desired installation site.

  • Page 11: Bacnet Application Specifications

    BACnet Application Specifications BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4. BACnet Application Specifications The following sections provide the gateway's specifications when set as a BACnet MS/TP server device. 4.1. Objects 4.1.1. Supported Object Types Object type Supported Management point SetPoint_status RoomTemperature_status...
  • Page 12 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects Object type Supported Management point FanSpeed_command AirDirectionUD_command Occupancy Multistate-Value Reset behavior Notification-Class Program Schedule Trend-Log Page 8 of 65 USER MANUAL Version 2.0.4...

  • Page 13: Member Objects

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.2. Member Objects 4.1.2.1. Type: Gateway Object name Description 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 OnOff_status OnOff_command...
  • Page 14 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects • Automatic 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.
  • Page 15 Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Property Identifier Property Datatype Value ASHRAE Gateway 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 Configuration_Files BACnetObjectIdentifier Last_Restore_Time...

  • Page 16: Onoff_Status (Binary Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.2. 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...

  • Page 17: Onoff_Command (Binary Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.3. 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...

  • Page 18: Mode_Status (Multi-State Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.4. Mode_status (Multi-state Input Object Type) It indicates the indoor unit's current mode. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Input, 0) Object_Name CharacterString Mode_status Object_Type BACnetObjectType MULTISTATE_INPUT (13) Present_Value Unsigned...

  • Page 19: Mode_Command (Multi-State Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.5. Mode_command (Multi-state Output Object Type) It sets the AC indoor unit's mode. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Output,0) Object_Name CharacterString Mode_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) Present_Value Unsigned 1 ..

  • Page 20: Setpoint_Status (Analog Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.6. Setpoint_status (Analog Input Object Type) It indicates the current temperature setpoint for the indoor unit. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Input, 0) Object_Name CharacterString SetPoint_status Object_Type BACnetObjectType...

  • Page 21: Setpoint_Command (Analog Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.7. Setpoint_command (Analog Output Object Type) It sets the desired temperature for the indoor unit. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Output, 0) Object_Name CharacterString SetPoint_command Object_Type BACnetObjectType ANALOG_OUTPUT (1)

  • Page 22: Fanspeed_Status (Multi-State Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.8. FanSpeed_status (Multi-state Input Object Type) It indicates the indoor unit's fan speed. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Input, 1) Object_Name CharacterString FanSpeed_status Object_Type BACnetObjectType MULTISTATE_INPUT (13) Present_Value Unsigned...

  • Page 23: Fanspeed_Command (Multi-State Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.9. FanSpeed_command (Multi-state Output Object Type) It sets the indoor unit's fan speed. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Output, 1) Object_Name CharacterString FanSpeed_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14) Present_Value Unsigned...

  • Page 24: Airdirectionud_Status (Multi-State Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.10. AirDirectionUD_status (Multi-state 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 (Multi-state Input, 2) Object_Name CharacterString AirDirectionUD_status Object_Type BACnetObjectType...

  • Page 25: Airdirectionud_Command (Multi-State Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.11. AirDirectionUD_command (Multi-state Output Object Type) It sets the indoor unit's vertical air direction (up-down). Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Output, 2) Object_Name CharacterString AirDirectionUD_command Object_Type BACnetObjectType MULTISTATE_OUTPUT (14)

  • Page 26: Roomtemperature_Status (Analog Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.12. RoomTemperature_status (Analog Input Object Type) It indicates the room temperature perceived by the AC indoor unit sensor. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Input, 1) Object_Name CharacterString RoomTemperature_status...

  • Page 27: Roomtemperature_Command (Analog Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.13. RoomTemperature_command (Analog Output Object Type) It sets the desired room temperature. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Analog Output, 1) Object_Name CharacterString RoomTemperature_command Object_Type BACnetObjectType ANALOG_OUTPUT (1) Present_Value REAL -10 ..

  • Page 28: Errorcode (Analog Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.14. 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...

  • Page 29: Errorcodem (Multi-State Input Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.15. ErrorCodeM (Multi-state Input Object Type) It indicates the AC system's current error. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Input, 4) Object_Name CharacterString ErrorCodeM Object_Type BACnetObjectType MULTISTATE_INPUT(13) Present_Value Unsigned...

  • Page 30: Erroractive (Binary Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.16. 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...

  • Page 31: Erroraddress (Analog Input Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.17. 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...

  • Page 32: Errorreset (Binary Output Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.18. 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)

  • Page 33: Ontimecounter (Analog Value Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.19. 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...

  • Page 34: Occupancy (Multi-State Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.20. Occupancy (Multi-state Value Object Type) It indicates the current occupancy status. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Multi-state Output, 0) Object_Name CharacterString Occupancy Object_Type BACnetObjectType MULTISTATE_VALUE (19) Present_Value BACnetBinaryPV 1 ..

  • Page 35: Occupiedcoolsetpoint (Analog Value Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.21. 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: Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 36: Occupiedheatsetpoint (Analog Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.22. 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. Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 37: Unoccupiedcoolsetpoint (Analog Value Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.23. 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. Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 38: Unoccupiedheatsetpoint (Analog Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.24. 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. Property Identifier Property Datatype Value ASHRAE Gateway...

  • Page 39: Occupancycontinuouscheck (Binary Value Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.25. OccupancyContinuousCheck (Binary Value Object Type) It indicates if the system is continuously checking the setpoint and occupancy conditions. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Value, 0) Object_Name CharacterString OccupancyContinuousCheck...

  • Page 40: Unoccupieddeadbandaction (Binary Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.26. UnoccupiedDeadbandAction (Binary Value Object Type) It indicates the action to be performed when Unoccupancy is enabled, and Room Temperature is within the deadband. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier...

  • Page 41: Serialnumber (Analog Input Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.27. 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. •...

  • Page 42: Lockremotecontrol (Binary Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.28. LockRemoteControl (Binary Value Object Type) It is used to lock or unlock the indoor unit infrared remote controller. Property Identifier Property Datatype Value ASHRAE Gateway Object_Identifier BACnetObjectIdentifier (Binary Value, 2) Object_Name CharacterString LockRemoteControl...

  • Page 43: Usersetpoint_Status (Analog Input Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.29. UserSetPoint_status (Analog Input Object Type) It indicates the current BACnet setpoint temperature when the virtual temperature object is active. See VirtualTemperatureActive (Binary Input Object Type) (page 40). Property Identifier Property Datatype Value ASHRAE...

  • Page 44: Virtualtemperatureactive (Binary Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.30. VirtualTemperatureActive (Binary Input Object Type) It indicates if the virtual temperature function is active or not. For more information on this function, see Considerations on BACnet Temperature Objects (page 47).

  • Page 45: Filtersignaddress (Analog Input Object Type)Switches

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.31. FilterSignAddress (Analog Input Object Type)switches 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...

  • Page 46: Dip_Sw_S1_Status (Analog Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.32. 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 of SW1, just convert it to binary. The gateway reads this value only when booting up. Property Identifier Property Datatype Value...

  • Page 47: Dip_Sw_S2_Status (Analog Input Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.33. 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 of SW2, just convert it to binary. The gateway reads this value only when booting up.s Property Identifier Property Datatype Value...

  • Page 48: Filtersign (Binary Input Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.34. FilterSign (Binary Input Object Type) It indicates the status of the filter, if there's an error or not. Property Identifier Property Datatype Value ASHRAE Intesis Object_Identifier BACnetObjectIdentifier (Binary Input, 1) Object_Name CharacterString FilterSign...

  • Page 49: Filterreset (Binary Output Object Type)

    Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.1.3.35. 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)

  • Page 50: Resetbehaviour (Multistate Value Object Type)

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Objects 4.1.3.36. 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...

  • Page 51: Considerations On Bacnet Temperature Objects

    Considerations on BACnet Temperature Objects BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 4.2. Considerations on BACnet Temperature Objects • Setpoint_command (Analog Output Object Type) This is the temperature setpoint requested by the user. This value can be read and written. A remote controller connected to the indoor unit will report the same temperature setpoint value as set in this object.
  • Page 52 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Considerations on BACnet Temperature Objects NOTE The gateway applies the “Virtual Temperature” formula: – (T – T Where: : Setpoint value to be applied to the indoor unit : Setpoint present value : External temperature reference from BACnet side : Room temperature that the indoor unit is using as reference When the gateway detects a change of any of the values of {S...

  • Page 53: Modbus Application Specifications

    Modbus Application Specifications BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 5. Modbus Application Specifications The following sections provide the gateway's specifications when set as a Modbus RTU server device. 5.1. Implemented Modbus Functions The IN485HIT001R000 gateway implements the following standard Modbus functions: •...
  • Page 54 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Implemented Modbus Functions Register Register Register name Possible values protocol address address 0: Closed (default) WINDOW CONTACT PROTOCOL INPUT 1: Open It disables the control of the AC unit through the registers of the gateway.
  • Page 55 Implemented Modbus Functions BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Register Register Register name Possible values protocol address address 0: Disabled ANTIFREEZE OPERATION 1: Enabled 0x8000: No temperature is provided by an external sensor. INPUT REFERENCE TEMPERATURE (Feedback) No virtual temperature is being applied.
  • Page 56 BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Implemented Modbus Functions Register Register Register name Possible values protocol address address 1: Position-1 (Horizontal) 2: Position-2 (Horizontal) VANESUD DEFAULT 3: Position-3 (Medium) 1105 1106 4: Position-4 (Vertical) 10: Swing 0: Normal (default) MACHINE MODE 1: Autochangeover 1150...
  • Page 57 Implemented Modbus Functions BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Table 12. Fan map Values 1: Invalid 0: Valid 14 .. 11 Not used 1: Fan 10 enabled 0: Fan 10 disabled 1: Fan 9 enabled 0: Fan 9 disabled 1: Fan 8 enabled 0: Fan 8 disabled 1: Fan 7 enabled...

  • Page 58: Considerations On Modbus Temperature Registers

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Considerations on Modbus Temperature Registers Values 1: Swirl enabled 0: Swirl disabled 1: Swing enabled 0: Swing disabled 1: Position 9 enabled 0: Position 9 disabled 1: Position 8 enabled 0: Position 8 disabled 1: Position 7 enabled 0: Position 7 disabled 1: Position 6 enabled...
  • Page 59 Considerations on Modbus Temperature Registers BACnet MS/TP and Modbus RTU Server Gateway for Hitachi – The register value after the gateway startup is -32768, which means that no temperature reference is provided to the AC indoor unit. In that case, the AC indoor unit will use its own return path temperature sensor as the reference for its control loop.

  • Page 60: Connections And Switches

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Connections and Switches 6. Connections and Switches 6.1. Connection to an External Power Supply IMPORTANT In most cases, this gateway is powered by the remote controller bus itself, and there is no need to connect an external power supply.

  • Page 61: Connection Procedure

    Connection Procedure BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 6.2. Connection Procedure CAUTION Disconnect all systems from the power source before connecting them to the gateway. IMPORTANT Keep communication cables away from power and ground wires. Connection to the wired remote controller bus 1.

  • Page 62: Dip Switches

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi DIP Switches 6.3. DIP Switches The gateway includes three DIP switches: SW1 (8 switches) at the bottom; SW2 (8 switches) and SW3 (3 switches) at the top. Figure 4. IN485HIT001R000 DIP switches Table 16.
  • Page 63 DIP Switches BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Table 17. SW2 (BACnet MS/TP) (P1 to P7): BACnet MS/TP MAC address; (P8): Temperature unit (°C/°F) Binary value Position BACnet Description address b0 .. b7 0000000X ↓ ↓ ↓ ↓...

  • Page 64: Setup Process

    1. An active BACnet MS/TP client device must be present and well-connected to the BACnet MS/TP port of the gateway. 2. The items supplied by HMS Networks: • The Intesis gateway • A specific connection cable to connect the AC unit with the gateway •...
  • Page 65 LED Status BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Status Description When the gateway is set for BACnet MS/TP EIA-485 bus link performed Flickering Activity on the EIA/485 bus Green EIA-485 bus link not performed AC communication error Blinking AC unit error Flashing...

  • Page 66: Restore The Factory Settings

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Restore the Factory Settings 8. Restore the Factory Settings To restore the gateway's factory settings, proceed as follows: Set all switches from DIP switches SW1 and SW2 to the ON position. Reboot the gateway: Power it OFF.

  • Page 67: Hardware Specifications

    Hardware Specifications BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 9. Hardware Specifications 9.1. Technical Specifications Plastic, type PC (UL 94 V-0) Net dimensions (DxWxH): 93 x 53 x 58 mm / 3.7 x 2.1 x 2.3” Housing Recommended space for installation (DxWxH): 100 x 60 x 70 mm / 4 x 2.4 x 2.8" Color: Light grey.

  • Page 68: Error Codes

    BACnet MS/TP and Modbus RTU Server Gateway for Hitachi Error Codes 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...
  • Page 69 AC System Codes BACnet MS/TP and Modbus RTU Server Gateway for Hitachi 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...

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