1. Produktet er slutview
The waveshare RS232/485/422 to RJ45 Ethernet Converter is an industrial-grade isolated serial server designed for reliable bi-directional data transmission between RS232/485/422 serial devices and Ethernet networks. It supports Power over Ethernet (PoE) functionality, offering flexible power supply options and robust communication modes for various industrial applications.
Figur 1.1: Front view of the Waveshare RS232/485/422 to RJ45 Ethernet Converter, showing the Ethernet port, serial ports, and power input.
Figur 1.2: Diagram illustrating key features including industrial isolation, rail-mount capability, Modbus Gateway, MQTT & JSON support, multi-host support, multiple interfaces, three power supply methods, and host/websidekonfiguration.
2. Nøglefunktioner
- Alsidig tilslutning: Supports RS232, RS485, and RS422 interfaces for broad compatibility with serial devices.
- Ethernet Integration: RJ45 Ethernet port with 10/100M auto-negotiation and 2 KV surge protection.
- Power over Ethernet (PoE): Complies with IEEE 802.3af standard for convenient power supply via Ethernet cable.
- Fleksibel strømindgang: Supports DC 6~36V wide voltage range via screw terminal or DC power port.
- Industrial Isolation: Features power isolation and signal isolation for enhanced reliability in harsh environments.
- Modbus Gateway Support: Facilitates Modbus networking upgrades and integration with Modbus RTU/TCP.
- Multi-Communication Modes: Supports TCP Server, TCP Client, UDP, and UDP Multicast operating modes.
- Protokolkonvertering: Flexible conversion between different protocols, including MQTT/JSON to Modbus.
- Avancerede funktioner: Includes Multi Hosts Roll-Polling, User-Defined Heartbeat/Registration Packet, and NTP Protocol Support.
- Multiple Configuration Methods: Configurable via host software, web browser, or device management functions library.
- Holdbart design: Aluminium alloy enclosure with sand blasting and anodic oxidation for solid and durable construction.
- Rail-Mount Support: Designed for easy rail-mounting in industrial setups.
3. Specifikationer
| Kategori | Parameter | Værdi |
|---|---|---|
| Produkttype | Fungere | Seriel server, Modbus Gateway, MQTT Gateway |
| Primær funktion | Datatransmission | Bi-directional transparent data transmission between RS232/485/422 and Ethernet |
| Kommunikationsgrænseflade | RS232 Port | 1 |
| RS485 Port | 1 | |
| RS422 Port | 1 | |
| Ethernet-port | 1 (PoE, IEEE 802.3af, 10/100M auto-negotiation, RJ45, 2 KV surge protection) | |
| Strømforsyning | Input bindtage | DC 6 ~ 36V (screw terminal or PoE port) |
| Isoleringsbeskyttelse | Power isolation, Signal isolation | |
| Serial Parameters | Baud rate | 300 ~ 115200 bps |
| Paritetsbit | Ingen, Odd, Even, Mark, Space | |
| Data bits | 5 ~ 9 bit | |
| Flow kontrol | Ingen flowkontrol | |
| Software | Protokoller | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
| Konfigurationsmetode | Vært, Web browser, Device management functions library | |
| Kommunikationsmetode | TCP/IP direkte kommunikation, VCOM | |
| Driftstilstand | TCP-server, TCP-klient (sameksisterende med TCP-server), UDP, UDP-multicast | |
| Driftstemperatur | Rækkevidde | -40℃ ~ 85℃ |
| Fugtighedsområde | Relativ luftfugtighed | 5 % ~ 95 % |
| Dimensioner | L × B × H | 88.7 × 64.5 × 24.2 mm (3.49 x 2.85 x 0.95 tommer) |
| Vægt | Varens vægt | 5.6 ounce |
| Modelnummer | Producentens model | RB-Wav-734 |
4. Pakkeindhold
Følgende varer er inkluderet i produktpakken:
- RS232/485/422 TO POE ETH (B) Converter x1
5. Opsætning og installation
5.1 Strømforsyningsmuligheder
The device offers three methods for power supply:
- PoE (Power over Ethernet): Connect an Ethernet cable from a PoE-enabled switch or injector to the RJ45 Ethernet port. The device supports IEEE 802.3af standard.
- DC strømport: Connect a DC power adapter (6~36V) to the DC power jack.
- Skrueterminal: Connect a DC power source (6~36V) to the screw terminal block. Ensure correct polarity (VCC and GND).
Figur 5.1: Illustration of the PoE Ethernet port, DC power port, and screw terminal for power input, along with diagrams showing bi-directional data transmission between serial and Ethernet interfaces.
5.2 Rail-Mount Installation
The converter is designed for easy installation on a DIN rail. Locate the rail-mount buckle on the device and securely attach it to a standard DIN rail in your industrial setup.
Figur 5.2: Image demonstrating the rail-mount buckle for easy integration into industrial environments, alongside details of the aluminum alloy enclosure and multiple protection features.
5.3 Interfaceforbindelser
Identify the following interfaces on the device:
- RS232 port: Standard DB9 male connector for RS232 serial communication. Refer to the pinout diagram for correct wiring.
- RS485/RS422 Port: Screw terminal block for RS485 (A, B) and RS422 (TX+, TX-, RX+, RX-) connections.
- PoE Ethernet Port: RJ45 connector for network and optional PoE power.
- Nulstil knap: Small button for resetting the device to factory defaults or restarting.
Figur 5.3: Detaljeret view of the device interfaces including the RS232 port, PoE Ethernet port, DC power port, 6-36V power input, ground, signal ground, RS485/RS422 terminals, and reset button. Also includes outline dimensions and RS232 pinout definition.
RS232 Pinout Definition
| DB9 han (pinkode) | RS232 PIN |
|---|---|
| 2 | (RXD) |
| 3 | (TXD) |
| 5 | GND |
| 1, 4, 6, 7, 8, 9 | N/C |
6. Betjeningsvejledning
6.1 Konfigurationsmetoder
The device can be configured using multiple methods:
- Værtssoftware: Use the dedicated configuration software provided by waveshare to set up network parameters, serial parameters, and operating modes.
- Web Browser: Få adgang til enhedens web grænseflade ved at indtaste dens IP-adresse i en web browser. This method supports obtaining dynamic IP via DHCP and DNS protocol support.
- Device Management Functions Library: For advanced integration, utilize the provided functions library.
Figur 6.1: Diagram illustrating multi-configuration methods via host software, web browser, and device management functions library, along with concepts like Multi Hosts Roll-Polling, User-Defined Heartbeat/Registration Packet, and NTP Protocol Support.
6.2 Kommunikationstilstande
The converter supports various communication modes to suit different network topologies and application requirements:
- TCP-server: The device acts as a TCP server, listening for incoming connections from TCP clients. It supports up to 30 TCP connections simultaneously.
- TCP-klient: The device initiates a TCP connection to a specified TCP server. It can coexist with TCP server mode.
- UDP: The device sends and receives UDP packets. This mode is suitable for multi-network device communication.
- UDP Multicast: Supports sending data to a group of devices simultaneously.
Figur 6.2: Visual representation of TCP Server, TCP Client, UDP Server, and UDP Client communication modes, along with Modbus Gateway support and MQTT/JSON to Modbus conversion.
6.3 Modbus Gateway Functionality
The device functions as a Modbus Gateway, enabling seamless integration of Modbus RTU/ASCII devices into Modbus TCP networks. It is suitable for Modbus networking upgrades and can be configured using specific software.
6.4 MQTT/JSON to Modbus Conversion
For enhanced flexibility, the converter supports MQTT/JSON to Modbus conversion. This allows data from cloud platforms (e.g., Baidu Cloud MQTT, Alibaba Cloud MQTT) or JSON formatted data to be parsed and converted into Modbus packets for uploading or integration with Modbus devices.
6.5 Multi Hosts Roll-Polling
This feature allows the device to identify and respond to different network devices respectively, preventing crosstalk issues when communicating with multiple network devices.
6.6 User-Defined Heartbeat/Registration Packet
Configure custom heartbeat and registration packets for easy cloud communication and device identification on the network.
6.7 NTP Protocol Support
The device supports NTP (Network Time Protocol) for obtaining accurate network time information, which can be useful for data logging and synchronization.
7. Vedligeholdelse og fejlfinding
7.1 Generel vedligeholdelse
- Keep the device in a clean, dry environment within the specified operating temperature and humidity ranges.
- Sørg for korrekt ventilation omkring enheden for at forhindre overophedning.
- Regularly check cable connections for secure fit and signs of damage.
- Rengør enhedens yderside med en blød, tør klud. Brug ikke flydende rengøringsmidler.
7.2 Fejlfinding af almindelige problemer
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Enheden tænder ikke | Ingen strømforsyning; Forkert lydstyrketage; Faulty cable/PoE source. | Bekræft strømtilslutning og lydstyrketage (6-36V DC). Check PoE source if using PoE. Try a different power method. |
| Ingen netværksforbindelse | Ethernet cable disconnected/damaged; Incorrect IP settings; Network configuration issue. | Check Ethernet cable. Verify device IP address and network settings using configuration software or web interface. Ensure network switch/router is functioning. |
| Seriel kommunikationsfejl | Incorrect serial port settings (baud rate, parity, data bits); Incorrect wiring; Device not in correct operating mode. | Verify serial parameters match the connected device. Check RS232/485/422 wiring. Ensure the device is in the appropriate TCP/UDP operating mode. |
| Enheden reagerer ikke | Software glitch; Configuration error. | Press the reset button to restart the device. If issues persist, perform a factory reset (refer to manual for specific procedure) and reconfigure. |
8. Sikkerhed og beskyttelse
The device incorporates multiple protection mechanisms to ensure safe and stable operation:
- Digital Isolation: Isolates digital signals to prevent interference.
- ESD beskyttelse: Electrostatic Discharge protection to prevent damage from static electricity.
- Overstrømsbeskyttelse: Beskytter mod for høj strøm.
- Over-voltage Beskyttelse: Beskyttelsesforanstaltninger mod voltage pigge.
- TVS (Transient Voltage Suppression) Tube: Effectively suppresses surge voltage and transient peak voltage in the circuit, enhancing lightning protection and ESD resistance.
- Built-in Resettable Fuse and Protection Diode: Ensures stable output current and voltage, preventing over-current and over-voltage.
Figur 8.1: Diagram highlighting digital isolation, ESD protection, over-current protection, over-voltage protection, and TVS protection, along with the durable aluminum alloy enclosure.
9. Garanti og support
For development resources and technical support, please contact waveshare customer service. Information regarding warranty terms and conditions can typically be found on the manufacturer's official webwebstedet eller ved at kontakte deres supportteam direkte.
Figur 9.1: Illustration of waveshare's support for batch customization, including label, hardware, and software customization, indicating comprehensive manufacturer support.