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Midea CCM-18A/N Operation Manual
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Midea CCM-18A/N Operation Manual

Midea CCM-18A/N Operation Manual

Modbus gateway
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Modbus Gateway Operation Manual
Applicable models CCM-18A/N
Thank you very much for purchasing our product.
Before using your unit, please read this manual carefully and keep it for future reference.

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Summary of Contents for Midea CCM-18A/N

  • Page 1 Modbus Gateway Operation Manual Applicable models CCM-18A/N Thank you very much for purchasing our product. Before using your unit, please read this manual carefully and keep it for future reference.

  • Page 3: Table Of Contents

    Contents Safety precautions..................1 ..................1 Overview ......................2 .................2 Usage introduction..................4 ..................4 Software reset ...................12 ...................12 appendix mapping table ..............12 ..............12...

  • Page 4: Safety Precautions

    1. Safety precautions The following contents are stated on the product and the operation manual, including usage, precautions against personal harm and property loss, and the methods of using the product correctly and safely. After fully understanding the following contents (identifiers and icons), read the text body and observe the following rules.

  • Page 5: Overview

    2 Overview 2.1 Instruction A1 B1 E A2 B2 E POWER RESET Fig.2.1 WAN terminal Connect to the switche by 5 kinds of network cables to ensure that PC can access to the web page of it. A1B1E terminal Connect to the indoor/outdoor unit A2B2E terminal Connect to the terminal serial port.
  • Page 6 　 　 ＸＹＥ Ｍｏｄｂｕｓ　ＴＣＰ Ｋ１Ｋ２Ｅ Ｍｏｄｂｕｓ　ｓｙｓｔｅｍ Connection through Modbus RTU: Fig.2.2 　 　 Ｍｏｄｂｕｓ　ＲＴＵ Ｍｏｄｂｕｓ　ｓｙｓｔｅｍ ＸＹＥ Ｋ１Ｋ２Ｅ Fig.2.3...

  • Page 7: Usage Introduction

    2.3 Function Code Function code Function Function name Read Read Coils 0x01 Read Read Input Register 0x04 Write Write Holding Register 0x10 2.4 Abnormal Reply The master unit sends requests and waits for reply from the slave.When there’s no error occurs, the slave will reply normally, but when there’s data checking error, the slave won’t answer.
  • Page 8 Fig.3.1 After setting, click “OK” button. 3.1.2 Multi-IP Addition Configure a static IP address before adding multiple IP. Open protocol dialog and choose Advanced tab. TCP/IP setting dialog will display like below: Fig.3.2...
  • Page 9 Click “Add” in IP address bar to add an IP address which is in the same segment as “192.168.1.200”, e.g., IP: 192.168.1.209 subnet mask 255.255.255.0 and click “OK” 3.2 Configuration Input http://192.168.1.200 in the address bar in IE (suggest to use IE). Choose “Configuration”...
  • Page 10 3.3 Air Conditioner Information Query Choose “power winding” or “input register” in the web page to read information of the air conditioner unit. When choose “power winding” it will be like the picture below. Fig.3.4 When click the address number of the indoor or outdoor unit, it will show correspond- ing operation information of the air conditioner.
  • Page 11 Fig.3.5 The first column is the address, second is the content and the third is displayed value, e.g. 17/0011, 17 is decimal display, 0011 is hexadecimal display. Explanation of part of the content: E.g., outdoor unit on-line state: 1/0001. When No. 0 outdoor unit is on-line, its value is 1/0001(decimalism / hexadecimal ), when No.0 outdoor and No.
  • Page 12 Single Air Conditioner Control Area Group control of cooling system Fig.3.6 Single air conditioner control area: control the single air conditioner. Choose a single air conditioner and set mode, wind speed and temperature. Single control area: to choose a single air conditioner, set mode, wind speed, temperature and click “Apply”...
  • Page 13 3.4 Upper Computer Access 3.4.1 Upper Computer Access Mode Upper computer system with Modbus protocol port can communicate with modbus gateway through Modbus TCP or Modbus RTU. For detailed information, please refer to Fig .2.2 and Fig. 2.3. 3.4.2 Access to Debug Via Modbus Poll software to access debugging.
  • Page 14 Click “OK” when finish setting. 2 Connection through Modbus/RTU Choose RTU to connect, as shown below: To PC port In accordance with the settings of Modbus on web page. Fig.3.9 3.4.2.3 Test Modbus Poll software can read/write the content of corresponding address in mapping table.

  • Page 15: Software Reset

    Take writting holding register for example: Choose button in Fig.3.7,as shown below: Modbus address After changed the value,click “send” button to finish the writting operation. 4 Software Reset Press"RESET" button on the gateway for 3 seconds and power on again, the software configuration will be back to the original setting.
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