1. 서론
This manual provides detailed instructions for the installation, operation, and maintenance of the GODIYMODULES Industrial USB to RS485 Converter. This device facilitates communication between a USB-enabled computer and RS485 devices, commonly used in industrial automation, data acquisition, and other serial communication applications. Please read this manual thoroughly before using the product to ensure proper functionality and safety.
Figure 1: GODIYMODULES Industrial USB to RS485 Converter
2. 특징
- Supports STC MCU download.
- Adjustable baud rate: 300 to 115200 BPS.
- Includes software for serial port setup and power supply configuration.
- Provides 5V, 200mA current to external devices.
- Signal indication: Red LED for data receiving (RXD).
- Signal indication: Green LED for data transmitting (TXD).
Figure 2: Converter with LED RXD, LED TXD, GND, D-/B-, D+/A+, and 5V labels
3. 사양
| 기인하다 | 값 |
|---|---|
| 모델 번호 | db620c38-21a9-43cd-90fb-dbaa93129d07 |
| 상표 | 고디모듈 |
| 커넥터 유형 | USB to RS485 Terminal Block |
| 호환 장치 | Desktop PCs, PLCs, MCUs, and other RS485 devices |
| 포트 수 | 1 (USB) to 1 (RS485) |
| 전송 속도 | 300-115200 BPS |
| 출력 볼륨tag전자/현재 | 5V, 200mA (for external devices) |
| 색상 | Green (terminal block) |
| 품목 무게 | 1.06 온스(약 30그램) |
| 패키지 크기 | 3.94 x 1.98 x 0.79인치(약 10 x 5 x 2cm) |
4. 설정 및 설치
Follow these steps to set up your Industrial USB to RS485 Converter:
- 드라이버 설치: Before connecting the converter, install the necessary USB serial port drivers on your computer. These drivers are typically provided on a mini-CD or available for download from the manufacturer's web대지.
- 컴퓨터에 연결: Plug the USB end of the converter into an available USB port on your computer. The operating system should detect the new hardware and assign a COM port number.
- COM 포트를 확인하십시오. Verify the assigned COM port number through your computer's Device Manager (e.g., "Ports (COM & LPT)").
- Wiring the RS485 Side: Connect your RS485 device to the terminal block of the converter. Ensure correct polarity for D+/A+ and D-/B-. Refer to the connection diagrams below for common configurations.
4.1 연결 다이어그램
Figure 3: Point-to-Point / 2-line Half-Duplex Connection (PC1 to single RS485 device)
- Connect the converter's D+/A+ terminal to the RS485 device's 485+ 단말기.
- Connect the converter's D-/B- terminal to the RS485 device's 485- 단말기.
- 그만큼 접지 그리고 5V terminals are optional for power supply to external devices if needed.
Figure 4: Point-to-Multipoint / 2-line Half-Duplex Connection (PC1 to multiple RS485 devices)
- Connect the converter's D+/A+ 터미널로 485+ bus line.
- Connect the converter's D-/B- 터미널로 485- bus line.
- All RS485 devices should be connected in parallel to the same 485+ 그리고 485- bus lines.
- Ensure proper termination resistors are used on the bus if required by your RS485 network.
Figure 5: LX08H to LX08H Half-Duplex Communication
- 연결하다 D+/A+ of the first converter (PC1) to D+/A+ of the second converter (PC2).
- 연결하다 D-/B- of the first converter (PC1) to D-/B- of the second converter (PC2).
- This configuration allows two computers to communicate via RS485 using two converters.
5. 운영
Once the converter is physically connected and drivers are installed, you can begin serial communication.
- 소프트웨어 구성 : Use a serial communication program (e.g., PuTTY, RealTerm, or custom software) to configure the COM port settings. Ensure the baud rate, data bits, parity, and stop bits match those of your RS485 device.
- 데이터 전송: Send and receive data through the configured COM port. The converter will automatically handle the conversion between USB and RS485 signals.
- LED 표시등:
- 그만큼 Red LED (RXD) will flash when the converter is receiving data from the RS485 bus.
- 그만큼 Green LED (TXD) will flash when the converter is transmitting data to the RS485 bus.
- 외부 전원 공급 장치: If your external RS485 device requires power, you can utilize the 5V 그리고 접지 terminals on the converter, which provide up to 200mA. Ensure your device's power requirements do not exceed this limit.
6. 유지관리
The GODIYMODULES Industrial USB to RS485 Converter is designed for durability and requires minimal maintenance.
- 청소: 기기를 깨끗하게 유지하고 먼지가 쌓이지 않도록 하십시오. 부드럽고 마른 천으로 닦으십시오. 액체 세척제 사용은 피하십시오.
- 저장: 변환기를 사용하지 않을 때는 직사광선과 극한 온도 변화를 피해 서늘하고 건조한 곳에 보관하십시오.
- 손질: Handle the device with care to prevent physical damage to the USB connector or terminal block.
7. 문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 컴퓨터가 장치를 인식하지 못합니다. | Missing or incorrect drivers. Faulty USB port. | Install the correct drivers. Try a different USB port. Check Device Manager for errors. |
| No data transmission/reception. | Incorrect wiring. Incorrect COM port settings (baud rate, parity, etc.). RS485 device not powered or faulty. | Verify RS485 wiring (D+/A+, D-/B-). Check COM port settings in your software. Ensure the RS485 device is operational. Check LED indicators for activity. |
| 간헐적 의사소통. | Loose connections. Electrical noise/interference. Improper termination resistors on RS485 bus. | Secure all connections. Use shielded cables if necessary. Ensure proper RS485 bus termination. |
| Red/Green LEDs not flashing. | No data activity. Device not powered. | Ensure data is being sent/received. Check USB connection. |
8. 보증 및 지원
For warranty information and technical support, please refer to the documentation provided with your purchase or contact GODIYMODULES customer service through their official web대지.
