PDDAXLQUE DX-CP24 RS485 to Bluetooth Serial Adapter User Manual

1. Introduction

The PDDAXLQUE DX-CP24 is an industrial-grade RS485 to Bluetooth Serial Adapter designed for wireless communication between computers or mobile devices and RS485 equipment. It features a built-in BLE 5.1 Bluetooth module (DX-BT24W-A) and supports the Modbus protocol, making it suitable for a wide range of industrial applications.

This converter facilitates the transition of wired RS485 devices to wireless operation, offering fast communication speed, stability, reliability, and enhanced security. It is an ideal solution for tasks such as updating PLC programs, controlling frequency converters, motors, relays, sensors, temperature control equipment, industrial instruments, and CNC machine tools.

The system typically involves a CP11-Master adapter connected to a computer or mobile device, and a CP24-Slave adapter connected to the RS485 device, enabling seamless wireless data exchange.

2. Product Features

• Built-in BLE 5.1 Bluetooth Module: Utilizes the DX-BT24W-A module for robust wireless connectivity.
• High-Performance Chip: Equipped with Renesas DA14531 chip and PA Amplifiers for reliable performance.
• RS485 Interface Support: Designed specifically for RS485 communication.
• Modbus Protocol Support: Compatible with Modbus protocol for industrial control.
• Multi-Platform Communication: Supports communication with PC, iOS, and Android devices.
• Adjustable Baud Rates: Supports baud rates including 2400, 4800, 9600 (default), 19200, 38400, 57600, and 115200 bps.
• External Antenna: Includes a rubber stick antenna for extended range.
• Communication Distance: Up to 90m for mobile phone connections, 70m for PC connections, and 400m for device-to-device communication in unobstructed open areas.
• Wide Power Supply Range: Operates on DC 5V-36V.
• Compact Design: Device size is 60 x 27.8 x 16.4 mm.
• Wide Operating Temperature: Functions reliably from -40°C to +85°C.

Image: Key features and specifications of the DX-CP24 adapter.

3. Product Contents

The DX-CP24 package includes the following items:

• 1 x DX-CP24 RS485 to Bluetooth Serial Adapter
• 1 x Rubber Stick Antenna
• 1 x DX-CP11 Master Adapter (for PC connection)
• 1 x RJ45 Plug to 4P 5.0mm Terminal Block (Detachable)

Image: Contents of the DX-CP24 package and a diagram illustrating the communication setup.

4. Hardware Description

4.1 Interface Introduction

The DX-CP24 adapter features the following interfaces:

1. A+: RS485 interface
2. B-: RS485 interface
3. VCC: Power supply interface (DC 5-36V)
4. GND: Ground interface
5. WORK: BLE status indicator
6. RX: Data receiving indicator light
7. TX: Data transmit indicator light
8. KEY: Switch baud rate button
9. ANT: External antenna interface

Image: Detailed view of the DX-CP24 adapter with labeled interfaces and indicators.

4.2 Indicator Lights

• TX Data Indicator: Blinks when the Bluetooth module sends data.
• RX Data Indicator: Blinks when the Bluetooth module receives data.
• WORK Status Indicator:
  • When Bluetooth is connected: The blue LED blinks.
  • When Bluetooth is not connected: The blue LED stays on constantly.

4.3 Baud Rate Adjustment

To adjust the baud rate:

• Briefly press the KEY button twice in quick succession to switch the baud rate.
• The number of flashes of the blue LED indicates the current baud rate:

5. Setup

5.1 Mobile Phone Connection

To connect the DX-CP24 to a mobile phone:

1. APP Download:
   • For iPhone: Search for "DX-SMART" on the App Store.
   • For Android: Download the application package from en.szdx-smart.com and install it.
2. Connect the CP24 to your RS485 device via the 485 interface.
3. Enable Bluetooth and location services on your mobile phone.
4. Open the "DX-SMART" App, navigate to the 'Transmission' section, and search for available Bluetooth devices.
5. Select the DX-CP24 to establish a connection. Once connected, you can control your RS485 devices wirelessly.

Note: For detailed instructions and troubleshooting, refer to the full product technical manual available on the official website.

Image: Steps for connecting the DX-CP24 to a mobile phone via the DX-SMART app.

5.2 Computer Connection (using CP11 Master Adapter)

For computer-based debugging and control, the included CP11 Bluetooth adapter is required:

1. Driver Installation: Download and install the 'CH341' driver from the official website (en.szdx-smart.com) onto your computer.
2. Plug the CP11 adapter into a USB port on your PC.
3. Connect the CP24 to your RS485 device via the 485 interface.
4. Open your serial port software (e.g., a terminal program).
5. Select the COM port corresponding to the CP11 adapter.
6. Configure the serial port parameters to the default: 9600bps/8/n/1 (baud rate/data bit/no parity/stop bit).
7. The CP11 adapter will automatically search for and connect to the CP24 Bluetooth converter. A steady blue light on the CP11 indicates a successful connection, allowing for data interaction.

Image: The CP11 Master Adapter and its connection to a PC for RS485 device debugging.

6. Operating Instructions

6.1 Wireless Communication Between Devices

The DX-CP24 enables wireless communication between two RS485 devices:

1. Connect one DX-CP24 (configured as Master) to Device 1 via its RS485 interface.
2. Connect another DX-CP24 (configured as Slave) to Device 2 via its RS485 interface.
3. The Master CP24 will automatically search for and connect to the Slave CP24.
4. Once connected, data can be exchanged wirelessly between Device 1 and Device 2.

Image: Diagram showing wireless communication setup between two RS485 devices using CP24 Master and Slave units.

6.2 Mobile Phone Wireless Debugging and Control

The DX-CP24 allows for wireless debugging and control of industrial equipment using a mobile phone. This includes controlling inverters, relays, and monitoring sensors.

6.3 Computer Wireless PLC Upgrade

The DX-CP24, in conjunction with the CP11 Master Adapter, enables wireless upgrading of PLC programs from a computer. This eliminates the need for traditional wired connections, simplifying maintenance and deployment.

Follow the setup instructions for computer connection (Section 5.2) and use your PLC programming software to upload or download programs wirelessly. The blue and red indicator lights on the adapters will show the connection and data transfer status during the upgrade process.

7. Applications

The DX-CP24 RS485 to Bluetooth Serial Adapter is versatile and can be applied in various industrial and automation scenarios:

• PLC Program Updates: Wirelessly update PLC programs from a PC or mobile device.
• Inverter Parameter Settings: Adjust inverter parameters remotely using a mobile phone.
• Lift Control Systems: Configure and monitor lift parameters from a computer.
• Servo Motor Control: Set and control servo motor parameters via mobile phones.
• Textile Machinery Control: Adjust parameters for textile machines using a computer.
• Touch Screen Control: Integrate with touch panels for wireless PLC control.
• Sensor Data Collection: Collect data from temperature and humidity sensors and display it wirelessly.

Image: Various application scenarios for the DX-CP24 Bluetooth to RS485 converter.

8. Specifications

9. Troubleshooting

If you encounter issues with your DX-CP24 adapter, consider the following troubleshooting steps:

• No Connection: Ensure both the CP24 and CP11 (if used) are powered correctly. Verify that Bluetooth is enabled on your host device (PC/mobile) and that the correct COM port is selected in your serial software. Check the WORK indicator light for connection status.
• Data Transfer Issues: Confirm that the baud rates on both the adapter and the connected RS485 device match. Check wiring connections for continuity and correct polarity (A+ to A+, B- to B-).
• Driver Problems: For PC connections, ensure the CH341 driver is correctly installed. Reinstall if necessary.
• Range Issues: Ensure there are no significant obstructions between the adapter and the host device. The specified communication distances are for unobstructed, open areas.
• Interference: Keep the adapter away from strong electromagnetic interference sources.

If problems persist, refer to the detailed technical documentation on the PDDAXLQUE official website or contact customer support.

10. Maintenance

The DX-CP24 RS485 to Bluetooth Serial Adapter is designed for durability and requires minimal maintenance. To ensure optimal performance and longevity:

• Keep Clean: Regularly clean the device with a soft, dry cloth. Avoid using harsh chemicals or solvents.
• Environmental Conditions: Operate the device within its specified temperature and humidity ranges. Avoid exposure to extreme temperatures, direct sunlight, or excessive moisture.
• Secure Connections: Periodically check all cable connections to ensure they are secure and free from damage.
• Firmware Updates: Check the manufacturer's website for any available firmware updates that may improve performance or add new features.

11. Warranty and Support

PDDAXLQUE products are manufactured to high-quality standards. For warranty information, technical support, and additional resources, please visit the official PDDAXLQUE website or contact their customer service department.

The official website provides access to testing software, user manuals, development documents, and other resources related to this Bluetooth module. You can typically find a link to the user guide and product documentation on the product page.

Contact information for support is usually available on the manufacturer's website. Please have your product model number and purchase details ready when contacting support.