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Related Manuals for HMS Networks Intesis EIA-485
Summary of Contents for HMS Networks Intesis EIA-485
- Page 1 Compatible with Domestic, Mr. Slim and City Multi lines commercialized by Mitsubishi Electric USER MANUAL Issue date: 12/2017 r22 ENGLISH...
- Page 2 Intesis INMBSMIT001I000 User’s Manual r22 EN Modbus RTU (EIA-485) Interface for Mitsubishi Electric air conditioners Compatible with Domestic, Mr. Slim and City Multi lines commercialized by Mitsubishi Electric ORDER CODE LEGACY ORDER CODE INMBSMIT001I000 ME-AC-MBS-1 © HMS Industrial Networks S.L.U - All rights reserved https://www.intesis.com This information is subject to change without notice 2 / 20...
- Page 3 Intesis INMBSMIT001I000 User’s Manual r22 EN Important User Information Disclaimer The information in this document is for informational purposes only. Please inform HMS Industrial Networks of any inaccuracies or omissions found in this document. HMS Industrial Networks disclaims any responsibility or liability for any errors that may appear in this document.
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Page 4: Table Of Contents
Intesis INMBSMIT001I000 User’s Manual r22 EN INDEX Presentation ......................5 Connection ......................6 Connect to the AC indoor unit ................6 Connection to the EIA-485 bus ................6 Quick Start Guide ....................7 Modbus Interface Specification ................8 Modbus physical layer..................8 Modbus Registers .................... -
Page 5: Presentation
Intesis INMBSMIT001I000 User’s Manual r22 EN 1. Presentation The INMBSMIT001I000 interfaces allow a complete and natural integration of Mitsubishi Electric air conditioners into Modbus RTU (EIA-485) networks. Compatible with all models of Domestic and Mr.Slim line. Check the section 6 for more information. -
Page 6: Connection
Intesis INMBSMIT001I000 User’s Manual r22 EN 2. Connection The interface comes with a specific cable and connectors to establish direct connection with the AC indoor unit. It comes as well with a plug-in terminal block of 2 poles to establish direct connection with the Modbus RTU EIA-485 network. -
Page 7: Quick Start Guide
Intesis INMBSMIT001I000 User’s Manual r22 EN 3. Quick Start Guide 1. Disconnect the air conditioning from the Mains Power. 2. Attach the interface next to the AC indoor unit (wall mounting) following the instructions of the diagram below or install it inside the AC indoor unit (respect the safety instructions given above and by the AC unit manufacturer). -
Page 8: Modbus Interface Specification
Intesis INMBSMIT001I000 User’s Manual r22 EN 4. Modbus Interface Specification 4.1 Modbus physical layer INMBSMIT001I000 implements a Modbus RTU (Slave) interface, to be connected to an EIA-485 line. It performs 8N2 communication (8 data bits, no parity and 2 stop bit) with several available baud rates (2400 bps, 4800 bps, 9600 bps -default-, 19200 bps, 38400 bps, 57600 bps, 76800 bps and 115200 bps). - Page 9 Intesis INMBSMIT001I000 User’s Manual r22 EN Register Address Register Address Description (protocol address) (PLC address) Window Contact 0: Closed (Default) ▪ 1: Open ▪ INMBSMIT001I000 Disablement 0: INMBSMIT001I000 enabled (Default) ▪ 1: INMBSMIT001I000 disabled ▪ AC Remote Control Disablement 0: Remote Control enabled (Default) ▪...
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Page 10: Configuration Registers
Intesis INMBSMIT001I000 User’s Manual r22 EN 4.2.2 Configuration Registers Register Address Register Address Description (protocol address) (PLC address) AC Model “Open Window” switch-off timeout 0..30 (minutes) ▪ Factory setting: 30 (minutes) ▪ Modbus RTU baud-rate 2400bps ▪ 4800bps ▪ 9600bps (Default) ▪... -
Page 11: Considerations On Temperature Registers
Intesis INMBSMIT001I000 User’s Manual r22 EN 4.2.3 Considerations on Temperature Registers • AC unit temperature setpoint (R/W) (register 4 – in Protocol address / register 5 – in PLC address): This is the adjustable temperature setpoint value that must be required by the User. This register can be read (Modbus function 3 or 4) or written (Modbus functions 6 or 16). - Page 12 Intesis INMBSMIT001I000 User’s Manual r22 EN In general, INMBSMIT001I000 is constantly applying the “Virtual Temperature” formula: – ( T – T Where: - setpoint value currently applied to the indoor unit - setpoint value written at Modbus side (register 4/5) - external temperature reference written at Modbus side (register 22/23) - ambient temperature that the indoor unit is using as the reference of its own control loop (register 5/6)
- Page 13 Intesis INMBSMIT001I000 User’s Manual r22 EN • Fahrenheit value: Value in Modbus register is the temperature value in Fahrenheit (i.e. a value “72” in the Modbus register must be interpreted as 72ºF (~22ºC). © HMS Industrial Networks S.L.U - All rights reserved https://www.intesis.com This information is subject to change without notice 13 / 20...
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Page 14: Dip-Switch Configuration Interface
Intesis INMBSMIT001I000 User’s Manual r22 EN 4.3 DIP-switch Configuration Interface All the configuration values on INMBSMIT001I000 can be written and read from Modbus interface. Otherwise, some of them can also be setup from its on-board DIP-switch interface. The device has DIP-switches SW1, SW3 and SW4 on the following locations: CABLE FIXING 1 2 3 4... - Page 15 Intesis INMBSMIT001I000 User’s Manual r22 EN SW3/SW4 – Baud rate configuration SW3-P7..8 SW4-P3 Description 2400bps 4800bps 9600bps (Default value) 19200bps 38400bps 57600bps 76800bps 115200bps Table 4.2 SW3-SW4: Modbus baud rate SW4 – Degrees/Decidegrees (x10), temperature magnitude (ºC/ºF) and EIA-485 termination resistor.
- Page 16 Intesis INMBSMIT001I000 User’s Manual r22 EN SW3 – Modbus Slave address SW3-P1..6 SW3-P1..6 SW3-P1..6 SW3-P1..6 SW3-P1..6 Table 4.4 SW3: Modbus slave address © HMS Industrial Networks S.L.U - All rights reserved https://www.intesis.com This information is subject to change without notice 16 / 20...
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Page 17: Implemented Functions
Intesis INMBSMIT001I000 User’s Manual r22 EN 4.4 Implemented Functions INMBSMIT001I000 implements the following standard Modbus functions: 3: Read Holding Registers ▪ 4: Read Input Registers ▪ 6: Write Single Register ▪ 16: Write Multiple Registers (Despite this function is allowed, the interface does not ▪... -
Page 18: Electrical And Mechanical Features
Intesis INMBSMIT001I000 User’s Manual r22 EN 5. Electrical and Mechanical features Plastic, type PC (UL 94 V-0) Net dimensions (dxwxh): Operation Enclosure 0ºC to +60ºC 93 x 53 x 58 mm / 3.7” x 2.1” x 2.3” Temperature Color: Light Grey. RAL 7035 Stock Weight 85 g. -
Page 19: List Of Supported Ac Unit Types
Intesis INMBSMIT001I000 User’s Manual r22 EN 6. List of supported AC Unit Types. A list of Mitsubishi Electric indoor unit model’s references compatible with INMBSMIT001I000 and its available features can be found on this link: https://www.intesis.com/docs/compatibilities/inxxxmit001ix00_compatibility © HMS Industrial Networks S.L.U - All rights reserved https://www.intesis.com This information is subject to change without notice 19 / 20... -
Page 20: Error Codes
Intesis INMBSMIT001I000 User’s Manual r22 EN 7. Error Codes Error Code Description No active error 1102 Discharge Temperature high 1108 Internal thermostat detector working (49C) 1110 Outdoor unit fail 1300 Pressure low 1302 Pressure high (High pressure probe working 63H) 1503 Protection against freeze or battery high temperature 1504...
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