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9

English

Installation

Communication sequence

System Initialization

At start-up, all registers have the value 0.

࡙ Ǯ˵ʪ͝ϩ˵ʪϩθɇʀ̧̈͝˝ͱ˙ϩ˵ʪđͱʒɵЇϑ̈͝ϩʪθ˙ɇʀʪ͔ͱʒЇ̷ʪ̈ϑʀͱ͔Χ̷ʪϩʪʒࡡɵ̈ϩϑߡϩͱߣͱ˙ϩ˵ʪʀͱ͔͔Ї̈͝ʀɇϩ̈ͱ͝ϑϩɇϩЇϑθʪ˝̈ϑϩʪθ࣍θʪ˝̈ϑϩʪθ

ߢ࣎˙ͱθʪɇʀ˵̈͝ʒͱͱθЇ̈͝ϩɇθʪЇΧʒɇϩʪʒϩͱߢࢋ

࡙ Ã˙ɇ̷̷ɵ̈ϩϑߡϩͱߣͱ˙θʪ˝̈ϑϩʪθߢɇθʪߢʪЭʪ͝˙ͱθͱ͝ʪ̈͝ʒͱͱθЇ̈͝ϩࡡ̈ϩ͔ʪɇ͝ϑϩ˵ɇϩϩ˵ʪϩθɇʀ̧̈͝˝ͱ˙ɇ̷̷̈͝ʒͱͱθɇ͝ʒͱЇϩʒͱͱθЇ̈͝ϩϑ˵ɇϑ

been completed, and that all indoor and outdoor register values have been updated.

If bit 0 of the communication status register for an indoor unit is 0, it means that this indoor unit is not connected.

After the power is turned on, the BMS periodically reads the communication status register values of indoor units. Then, if 

ɇ̈͝͝ʒͱͱθЇ̈͝ϩӥϩ˵ɇ̷̷ɵ̈ϩϑߡϩͱߣͱ˙ϩ˵ʪθʪ˝̈ϑϩʪθϑʪϩϩͱߢ̈ϑ˙ͱЇ͝ʒࡡʀͱ͝ϩθͱ̷ɇ͝ʒ͔ͱ̈͝ϩͱθ̈͝˝ɇθʪɇЭɇ̷̈ɇɵ̷ʪ˙ͱθϩ˵ʪ˙ͱЇ͝ʒ̈͝ʒͱͱθ

unit from that time.

࡙ Ɵ˵ʪ9đƊʀɇ͝ͱ̷͝цʀͱ͝ϩθͱ̷ϩ˵ʪ̈͝ʒͱͱθЇ̈͝ϩϑӥϩ˵ɇ̷̷ɵ̈ϩϑߡϩͱߣͱ˙ϩ˵ʪʀͱ͔͔Ї̈͝ʀɇϩ̈ͱ͝ϑϩɇϩЇϑθʪ˝̈ϑϩʪθ˙ͱθϩ˵ʪ̈͝ʒͱͱθЇ̈͝ϩϑʪϩϩͱߢࢋ

Monitor and operate units from the BMS

When the BMS writes a value to the holding register, a control command is sent to the relevant indoor unit.

The holding register value for an indoor unit is not updated until a changed status value is received from that indoor unit.

Because the user might be able to operate indoor units with a remote control, the BMS must reads their status periodically.

If communication between an indoor/outdoor unit and the Modbus interface module is stopped, the last status value is 
retained until communication is resumed.

Modbus

interface module

Communication status

(51 bits 0 to 2): 0 (Not Ready)

Check 

communication 

status.

Monitoring

control

Power on

Communication status

(51 bits 0 to 2) : 7 (Ready)

Indoor unit

BMS

Power on

Check communication status (51).

Response: 0 (Not Ready)

Tracking

Response: Status

Change a value.

Response: Status

Check communication status (51).

Response: 7 (Ready)

Check indoor status 
(input & holding registers).

Response: Status

Change a value in the holding registers.

Response

Check indoor status 
(input & holding registers).

Response: Status

Содержание MIM-B19N

Страница 1: ...tion manual Modbus Interface Module MIM B19N MIM B19NT Thank you for purchasing this Samsung product Before operating this unit please read this Installation manual carefully and retain it forfuture r...

Страница 2: ...ing the Modbus Interface Module 5 Modbus interface module 5 About Modbus Interface module 8 Communication sequence 9 Checking Operation 11 kU k k U Modbus RegisterTable 13 Adding New Modbus Register 1...

Страница 3: ...e machine is grounded to prevent electric shock Unplug the powerplug from the wall socket U FOR INSTALLATION WARNING Contact a service centerforinstallation Failure to do so may result in product malf...

Страница 4: ...c acid gas etc may result in component damage orproduct malfunction Do not install the product in a place where acid oralkali liquid orspecial sprays are used Failure to do so may result in electric s...

Страница 5: ...hing a case to the side of the outdoor unit s electric equipment section install the Modbus Interface Module 2 Connect the power cable and communication cable of the Modbus Interface Module When a Mod...

Страница 6: ...fter changing the indoor unit settings address Use of central control option the interface module must be reset 9 polarity If the polarity does not match communication is impossible 4 Set the Use of c...

Страница 7: ...7 English Installation Example of Modbus interface module installation CN4 CN3 RED CN2 BLK CN4 CN3 RED CN2 BLK U U Modbus RTU 9 Modbus Master...

Страница 8: ...interface module address range BMS unit protocol operating temperature range Power UA Modbus communication Communication protocol k Device type Slave Byte order Big endian k k 9 LSB format big endian...

Страница 9: ...til a changed status value is received from that indoorunit Because the usermight be able to operate indoorunits with a remote control the BMS must reads theirstatus periodically If communication betw...

Страница 10: ...es normally send a write command to the master and then read the register status response is received from the Modbus interface module Table1 Example of signal flow Modbus interface module Indoor unit...

Страница 11: ...ely 2 k displayed alternately 3 k displayed alternately 4 kk k 5 k Notes on interface module installation 1 k 2 3 An air conditioner indoor unit and an energy recoveryventilator ERV must not be instal...

Страница 12: ...ged the DIP orrotary switch settings be sure to reset the power k Set the DIP and rotary switches only once at boot time If you have changed the DIP orrotary switch settings be sure to reset the power...

Страница 13: ...HT EHS AHUkit ERV ERV CHILLER FCU FCUkit 0 Modbus interface module error status A R Integrated outdoor unit error code k R defrost operation U U R 3 Buzzeron off W 50 0 Communication status k A R R R...

Страница 14: ...W R W R W Indoorfan speed R W R W R W 50 5 Use ofvertical airflow direction R W R W 50 6 Filter cleaning reminder R R R R 50 7 Canceling the filter cleaning reminder A A W W W W 50 8 Set temperature...

Страница 15: ...V CHILLER FCU FCUkit Restrictions on the remote control Read Write R W R W R W R W R W R W R W R W Water in temperature A R R Water out Temperature A R R MCCwater out temperature A R Water out set tem...

Страница 16: ...f R W Hot water mode k Force forthe EHS only R W Hot water set temperature A k k R W Hot water temperature A R Error information collected by MCC Errorinformation of slave chillerunit k 9 9 R k has er...

Страница 17: ...ted the added functions become available for use in the order of registration U U U unit Adding indoorunit HE HT EHS AHU Kit ERV ERV Chiller FCU and orFCU Kit functions 1 corresponding MessageSet IDs...

Страница 18: ...busregistertype R W Remarks Outdoor Indoor HE HT EHS AHU kit ERV ERV CHILLER FCU FCU kit frequency of Current operating frequency of 0 to 000Hz R frequency of Current operating frequency of 0 to 000Hz...

Страница 19: ...19 English Installation Memo...

Страница 20: ...le reuse of material resources Household users should contact eitherthe retailerwhere they purchased this product ortheir local government office for details of where and how they can take these items...

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