1. Įvadas
This manual provides instructions for the WITMOTION USB to RS485 Modbus RTU UART Converter Cable. This device offers a straightforward method to connect RS485 Modbus level serial interface devices to a computer via USB. It supports various operating systems and is designed for reliable data transfer.
1.1 Kas yra dėžutėje
- 1 x WitMotion USB-RS485 serial cable (1 meter)
- 1 x Welcome guide
Image 1: The WITMOTION USB to RS485 Converter Cable, showing the USB-A connector and the 4-way female socket header.
2. Savybės
- Tvirtas dizainas: Provides a fast, simple way to connect devices with an RS485 Modbus level serial interface to USB.
- Modbus RTU Access: Offers access to Modbus RTU A (RS485 A), B (RS485 B), VCC (5V), and GND connections.
- Plug and Play: USB specification 2.0 compliant, supporting the CH340 driver for convenient setup and connections.
- Operacinės sistemos suderinamumas: Compatible with Windows XP/7/8/10 (32-bit/64-bit), Linux, Wince, Mac, and Vista.
- Adjustable Baud Rates: Supports baud rates from 300 bps to 1.5 Mbps.
3. Sąranka ir diegimas
3.1 Tvarkyklės diegimas
The converter cable utilizes a CH340 chip. Before connecting the cable, ensure the appropriate CH340 driver is installed on your operating system. Drivers are typically available from the manufacturer's website or can be found by searching for 'CH340 driver download'.
3.2 Kabelio prijungimas
- Prijunkite USB-A kabelio galą prie laisvo kompiuterio USB prievado.
- Identify the 4-way female socket header. This header provides the following connections for your RS485 device:
- A (RS485 A): Data A line for RS485 communication.
- B (RS485 B): Data B line for RS485 communication.
- VCC (5V): 5 Volt power supply output.
- BND: Įžeminimo jungtis.
- Connect the 4-way female socket header to your RS485 Modbus device, ensuring correct pin assignments (A to A, B to B, VCC to VCC, GND to GND). Refer to your device's documentation for its specific pinout.
Video 1: Official product video demonstrating the WITMOTION USB to RS485 Converter Cable and its connections.
4. Naudojimo instrukcijos
Once the cable is physically connected and the drivers are installed, your computer will recognize the device as a virtual COM port. You can then use serial communication software (e.g., PuTTY, RealTerm, or custom applications) to interact with your RS485 Modbus device.
- Open your preferred serial communication software.
- Select the COM port assigned to the WITMOTION USB to RS485 converter. You can find this in your computer's Device Manager (Windows) or by listing serial devices (Linux/Mac).
- Configure the serial port settings to match your RS485 Modbus device's requirements. Key settings include:
- Sparta: Set between 300 bps and 1.5 Mbps (e.g., 9600, 19200, 115200).
- Duomenų bitai: Typically 8.
- Paritetas: None, Even, or Odd.
- Stop bitai: Typically 1 or 2.
- Initiate communication with your RS485 Modbus device according to its protocol specifications.
5. Specifikacijos
| Funkcija | Specifikacija |
|---|---|
| Prekės ženklas | WITMOTION |
| Modelio pavadinimas | USB to RS485 Modbus RTU UART Converter Cable |
| Prekės modelio numeris | RS485 line |
| Jungties tipas | USB |
| Kabelio tipas | USB |
| Suderinami įrenginiai | Industrial Equipment, Modbus Devices, Sensors |
| Ypatinga funkcija | Duomenų perdavimas |
| Rekomenduojami naudojimo būdai | Connecting devices with RS485 Modbus level serial interface to USB |
| Spalva | Juoda |
| Jungties lytis | Male-to-Male (USB-A to 4-way header) |
| Duomenų perdavimo sparta | Iki 1.5 megabitų per sekundę |
| Smeigtukų skaičius | 4 (on socket header) |
| Maksimalus tūristage | 5 Volts (VCC output) |
| Kabelio ilgis | 1 metras (3.28 pėdos) |
| Prekės svoris | 0.04 kilogramo (1.44 uncijos) |
| Naudojimas viduje / lauke | Vidinis |
6. Problemų sprendimas
- Įrenginys neatpažintas: Ensure the CH340 driver is correctly installed. Check your computer's Device Manager for any unknown devices or COM port errors. Try a different USB port.
- Ryšio klaidos: Verify that the baud rate, data bits, parity, and stop bits in your serial communication software match the settings of your RS485 Modbus device. Incorrect settings are a common cause of communication failure.
- Neteisingas laidas: Double-check the connections between the converter cable's 4-way header and your RS485 device. Ensure A connects to A, B to B, VCC to VCC (if powering the device), and GND to GND.
- Nėra duomenų perdavimo: Confirm that your RS485 device is powered on and functioning correctly. Test with a known working RS485 device if possible.
- Pertraukiamas ryšys: Ensure all connections are secure. Avoid excessively long or unshielded RS485 bus lines, which can introduce noise.
7. Garantija ir palaikymas
WITMOTION provides a 12 mėnesių garantija for this product, along with lifetime friendly customer service.
7.1 Pagalbos gavimas
If you require assistance or have questions, please use one of the following methods:
- Guiding Card: Refer to the tutorial link printed on the guiding card included in the product package.
- Internetiniai vadovėliai: Apsilankykite wit-motion.com and navigate to the support page to download complete tutorials and documentation.
- Pagalba el. paštu: Susisiekite su WITMOTION palaikymo komanda tiesiogiai el. paštu adresu support@wit-motion.com.