HMS Intesis INMBSMID I000 Series User Manual Download Page 2

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Intesis

INMBSMID---I000

User’s Manual r

1.3 EN

This information is subject to change without notice

URL https://www.intesis.com

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Modbus RTU (EIA-485) Interface for Midea
air conditioners

Compatible with VRF and Commercial lines

ORDER CODE

LEGACY ORDER CODE

INMBSMID001I000

MD-AC-MBS-1

INMBSMID004I000

MD-AC-MBS-4

INMBSMID008I000

MD-AC-MBS-8

INMBSMID032I000

MD-AC-MBS-32

Summary of Contents for Intesis INMBSMID I000 Series

Page 1: ...Compatible with VRF and Commercial lines USER MANUAL Issue date 05 2018 r1 3 ENGLISH...

Page 2: ...ion is subject to change without notice URL https www intesis com 2 24 Modbus RTU EIA 485 Interface for Midea air conditioners Compatible with VRF and Commercial lines ORDER CODE LEGACY ORDER CODE INM...

Page 3: ...d are only intended to help improve understanding of the functionality and handling of the product In view of the wide range of possible applications of the product and because of the many variables a...

Page 4: ...er 9 4 2 Modbus Registers for INMBSMID001I000 9 4 2 1 Control and status registers 9 4 2 2 Configuration Registers 11 4 3 Modbus Registers for INMBSMID004I000 INMBSMID008I000 INMBSMID032I00012 4 3 1 G...

Page 5: ...NMBSMID008I000 INMBSMID032I000 devices can be connected on the same network INMBSMID I000 is a Modbus slave device Direct connection to the Midea XYE bus Configuration from both on board DIP switches...

Page 6: ...r of AC units to control the recommended connection methods can be seen in Figure 2 1 and Figure 2 2 NOTE If a CCM Central Controller is present in the XYE bus then the INMBSMID I000 cannot be connect...

Page 7: ...connected Please disconnect the CCM Central Controller for use of the gateway 90 mm 3 5 MODBUS RTU EIA 485 Bus EIA485 A B X Y V1 V2 AC Unit Power 53 mm 2 1 For wall mounting extract the upper and dow...

Page 8: ...nnect the Modbus RTU EIA 485 bus to the EIA485 A B connector of the interface 5 Connect the power cable between the interface and the Mains Power following the instructions of the diagram Screw each b...

Page 9: ...needs to be set in the AC unit 4 2 1 Control and status registers Register Address protocol address Register Address PLC address R W Description 0 1 R W AC unit On Off 0 Off 1 On 1 2 R W AC unit Mode...

Page 10: ...ambient temperature from external sensor at Modbus side 1 2 3 7 32768 Initialization value No temperature is being provided from an external sensor Any other C x10 C F 23 24 R AC Real temperature set...

Page 11: ...minutes 14 15 R Modbus RTU Baud rate 2400bps 4800bps 9600bps Default Value 19200bps 38400bps 57600bps 76800bps 115200bps 15 16 R Device s Modbus Slave address 1 63 21 22 R Max number of fan speeds 49...

Page 12: ...the interface Register Address protocol address Register Address PLC address R W Description 0 1 W AC unit On Off Global 0 Off 1 On 1 2 W AC unit Mode Global 12 0 Auto 1 Heat 2 Dry 3 Fan 4 Cool 2 3 W...

Page 13: ...78 Initialization value 17 30 C C x10 C 63 86 F 1000 20 n 5 1000 20 n 6 R AC unit Temperature reference 16 17 18 32678 Initialization value Ranges determined by the Manufacturer of the AC indoor unit...

Page 14: ...200 2031 2032 R Capacity 22 4 INMBSMID004I000 4 Indoor Units 8 INMBSMID008I000 8 Indoor Units 32 INMBSMID0032I000 32 Indoor Units 2040 2041 R Modbus RTU Baud rate 2400bps 4800bps 9600bps Default 19200...

Page 15: ...unit does not allow to provide an external temperature to be used as a reference of the control loop of the AC indoor unit In order to overcome this limitation and enable the usage of an external tem...

Page 16: ...pplied The temperature setpoint s value shown by the Remote Controller from Midea connected to the indoor unit shall show a different value from the value shown in register 4 5 Instead it shall show t...

Page 17: ...1 AC indoor unit s features SW1 P1 4 Description AC Unit does not have AUTO mode Default value AC Unit has AUTO mode AC Unit does not have DRY mode Default value AC Unit has DRY mode AC Unit does not...

Page 18: ...e magnitude C F and EIA 485 termination resistor Table 4 3 SW4 Temperature and termination resistor configuration SW4 P1 2 4 Description Temperature values in Modbus register are represented in degree...

Page 19: ...Add SW3 P1 6 Add SW3 P1 6 Add SW3 P1 6 Add SW3 P1 6 Add SW3 P1 6 0 13 26 39 52 1 14 27 40 53 2 15 28 41 54 3 16 29 42 55 4 17 30 43 56 5 18 31 44 57 6 19 32 45 58 7 20 33 46 59 8 21 34 47 60 9 22 35...

Page 20: ...ce LED indicator The device includes LED indicators to show all the possible operational states In the following table you will find the possible indication combinations and its meaning L1 green LED D...

Page 21: ...h are listening the bus when all the transmitters outputs are in three state high impedance a fail safe biasing mechanism is required This mechanism provides a safe status a correct voltage level in t...

Page 22: ...d or with ferrule 1 core 0 5mm2 2 5mm2 2 cores 0 5mm2 1 5mm2 3 cores not permitted Stock Humidity 95 RH non condensing Modbus RTU port 1 x Serial EIA485 Plug in screw terminal block 2 poles A B Compat...

Page 23: ...ormation is subject to change without notice URL https www intesis com 23 24 6 List of supported AC Unit Types A list of Midea indoor unit model s references compatible with INMBSMID I000 and its avai...

Page 24: ...ter module protection 13 EC Cooling error 14 ED Outdoor unit fault protection 15 EE Water level fault detection 16 EF Other errors 101 P0 Vaporizer temperature protection 102 P1 Thawing or cold air pr...

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