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Related Manuals for Samsung MIM-B19N
Summary of Contents for Samsung MIM-B19N
- Page 1 Air conditioner Installation 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 for future reference. DB68-07538A-03...
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Page 2: Table Of Contents
Contents Safety Information Safety Information Installation Installing the Modbus Interface Module Modbus interface module About Modbus Interface module Communication sequence Checking Operation Modbus Register Table Adding New Modbus Register Adding indoor unit, HE/HT, AHU Kit, ERV, ERV+, Chiller, FCU and/or FCU Kit functions 2 English... -
Page 3: Safety Information
This installation manual explains how to install a Modbus interface module that connects both the outdoor unit and the ventilation system of the Samsung air conditioner to the Modbus system. Please read this manual thoroughly before installing the product. (Please refer to an appropriate installation manual for any optional product installation.) WARNING Hazards or unsafe practices that may result in severe personal injury or death. -
Page 4: Installation
Safety Information FOR INSTALLATION CAUTION When connecting a wire, do not tighten it too much. Failure to do so may result in breakage of the wire. Make sure the Modbus interface module installation doesn't cause interference with other electrical appliances, particularly in a hospital etc. -
Page 5: Installing The Modbus Interface Module
Installing the Modbus Interface Module Modbus interface module Product and components DC power cable Communication Name Interface module Case Cable tie (12 V) cable Shape Connecting the Modbus interface module to the DVM After attaching a case to the side of the outdoor unit’s electric equipment section, install the Modbus Interface Module. - Page 6 Installing the Modbus Interface Module CAUTION You should switch off the power supply and disconnect the power cable. (Abnormal operation of the product may occur due to the electric problem.) Set the address of the Modbus interface module. After changing the indoor unit settings (address, 'Use of central control' option), the interface module must be reset. polarity.
- Page 7 Example of Modbus interface module installation Modbus Master Modbus RTU English...
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Page 8: About Modbus Interface Module
Installing the Modbus Interface Module About Modbus Interface module Unit connection protocol Maximum number of connectable units Modbus interface module address Specifications range BMS unit protocol operating temperature range Power Communication protocol Device type Slave Big endian. Byte order LSB format (big endian). Settings Modbus communication... -
Page 9: Communication Sequence
Communication sequence System Initialization At start-up, all registers have the value 0. 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. - Page 10 Installing the Modbus Interface Module CAUTION sends a control command to the indoor units. Therefore, be sure to send a command to the Modbus master only when control (operation on/off, temperature setting, etc.) is required. If an identical command is issued consecutively, the same command is repeatedly sent to the indoor units. To check whether the write command operates normally, send a write command to the master and then read the register status.
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Page 11: Checking Operation
An air conditioner indoor unit and an energy recovery ventilator (ERV) must not be installed on the same CAC indoor unit, hydro kit (low/high temperature), ERV, ERV+, DVM CHILLER, FCU, FCU Kit, and EHS. When the Modbus interface module is used, the upper-level controllers of Samsung cannot be connected. Modbus interface module. - Page 12 Checking Operation Setting the address using the DIP and rotary switches and the value of the rotary switch. The DIP and rotary switches are set only once when the power is turned on. If you have changed the DIP or rotary switch settings, be sure to reset the power.
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Page 13: Modbus Register Table
Modbus Register Table Table 2. Modbus register table E.g., calculating the Modbus PDU address when the connected indoor unit address is 3 Modbus register type (R/W) Modbus Function Signal values Remarks HE/HT/ PDU address Outdoor Indoor AHU kit ERV ERV+ CHILLER FCU FCU kit Modbus interface... - Page 14 Modbus Register Table Modbus register type (R/W) Modbus Function Signal values Remarks HE/HT/ PDU address Outdoor Indoor AHU kit ERV ERV+ CHILLER FCU FCU kit Air conditioner R/W R/W R/W R/W R/W R/W R/W *50)) + 3 mode DVM CHILLER's only. Indoor fan R/W R/W speed...
- Page 15 Modbus register type (R/W) Modbus Function Signal values Remarks HE/HT/ PDU address Outdoor Indoor AHU kit ERV ERV+ CHILLER FCU FCU kit [Read] Restrictions on the R/W R/W R/W R/W R/W R/W R/W R/W remote [Write] control Water-in temperature Water-out Temperature MCC water-out temperature...
- Page 16 Modbus Register Table Modbus register type (R/W) Modbus Function Signal values Remarks HE/HT/ PDU address Outdoor Indoor AHU kit ERV ERV+ CHILLER FCU FCU kit Hot water operation on/off Hot water mode Force (for the EHS only) water set temperature Hot water temperature Error information of slave...
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Page 17: Adding New Modbus Register
Adding New Modbus Register Adding outdoor unit functions corresponding MessageSet IDs, starting from address 6000. Functions that have been written are registered When the writing is completed, the added functions become available for use in the order of registration. unit. Adding indoor unit, HE/HT/EHS, AHU Kit, ERV, ERV+, Chiller, FCU and/or FCU Kit functions corresponding MessageSet IDs, starting from address 7000. - Page 18 Adding New Modbus Register Table 3. New Modbus register table Sequentially add the functions you want to use, starting from address 6000 (outdoor unit) or 7000 (indoor unit). Modbus register type (R/W) MessageSet Function Signal values Remarks HE/HT/ Outdoor Indoor ERV ERV+ CHILLER FCU Current operating frequency of...
- Page 19 Memo English...
- Page 20 Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal. (For India only) For more information on safe disposal and recycling, visit our website www.samsung.com/in/support À DÉPOSER À DÉPOSER...