User Manual: waveshare RS232/485 to WiFi and Ethernet Converter

1. Уводзіны

This manual provides comprehensive instructions for the waveshare RS232/485 to WiFi and Ethernet Converter, Model UART-WIFI232-B2. This device is an industrial-grade data acquisition and IoT gateway, integrating multiple functionalities such as serial server, Modbus gateway, MQTT gateway, and serial port to HTTPD Client. It facilitates seamless communication between serial devices and network environments (WiFi and Ethernet).

The converter supports various communication methods, including serial port to WiFi, serial port to Ethernet, and Ethernet to WiFi, making it a versatile solution for industrial automation and IoT applications.

Малюнак 1.1: Закончанаview of the waveshare RS232/485 to WiFi and Ethernet Converter highlighting its industrial grade, RS232/485 to network, multi-transparent transmission modes, HTTPD/MQTT, Modbus Gateway, WiFi, RJ45 Ethernet Port, multi-features, and wall/rail-mount support.

2. Інфармацыя па бяспецы

• Пераканайцеся, што аб'ём блока харчаванняtage (DC 6~36V) is within the specified range to prevent damage to the device.
• Do not expose the device to extreme temperatures, humidity, or corrosive environments.
• Avoid physical shock or dropping the device.
• Disconnect power before performing any maintenance or connection changes.
• Only use the provided accessories or recommended replacements.
• This device is designed for industrial environments; handle with care and follow standard electrical safety procedures.

3. Змесціва ўпакоўкі

Праверце наяўнасць усіх прадметаў у камплекце:

• RS232/485 TO WIFI ETH (B) Converter x1
• Антэна 2.4G WiFi x1
• Rail-mount buckle x1
• Адвёртка x1
• Screws pack x1

Figure 3.1: The RS232/485 to WiFi and Ethernet Converter along with its accessories: screwdriver, screws, rail-mount buckle, and 2.4G WiFi antenna.

4. Прадукт скончыўсяview і ўвядзенне ў інтэрфейс

The device features multiple interfaces for power, serial communication, and network connectivity. Understanding these interfaces is crucial for proper setup and operation.

Малюнак 4.1: падрабязна view of the converter's interfaces, including the RS232 DB9 port, RJ45 Ethernet port (PoE optional on other models), DC Power Port, 6-36V Power Input screw terminal (A, B, Signal Ground), and WiFi Antenna Connector.

4.1. Інтэрфейсы

• Порт RS232: Standard DB9 male connector for RS232 serial communication.
• Тэрмінал RS485: Screw terminals (A, B, GND) for RS485 serial communication.
• Ethernet порт: RJ45 connector for 10/100M auto-negotiation Ethernet.
• WiFi Antenna Connector: SMA connector for the included 2.4G WiFi antenna.
• Спажываная магутнасць: DC 5.5 power port and screw terminal for DC 6~36V power supply.
• Святлодыёдныя індыкатары: RELOAD, RXD, TXD, LINK, PWR for status indication.

4.2. RS232 Pinout Definition

5. Настройка

5.1. Апаратнае падключэнне

1. Attach WiFi Antenna: Screw the provided 2.4G WiFi antenna onto the SMA connector on the device.
2. крыніца харчавання: Connect a DC 6~36V power supply to either the DC 5.5 power port or the screw terminal (PE, B, A, 6-36V, GND). Ensure correct polarity for the screw terminal.
3. Падключэнне да Ethernet (неабавязкова): Connect an Ethernet cable from your network router or switch to the RJ45 Ethernet port on the device.
4. Serial Device Connection:
   • For RS232: Connect your RS232 serial device to the DB9 port.
   • For RS485: Connect your RS485 serial device to the A, B, and GND terminals.
5. Мантаж (дадаткова): Use the rail-mount buckle and screws to mount the device on a DIN rail or wall as needed.

Figure 5.1: The converter supports multiple power supply methods, including a DC 5.5 power port and a screw terminal for 6-36V DC input.

5.2. Пачатковая канфігурацыя сеткі

Upon first power-up, the device typically boots in Access Point (AP) mode, allowing direct connection for initial configuration.

1. Падключэнне да кропкі доступу: On your computer or mobile device, search for available WiFi networks. The device will broadcast an SSID (e.g., "waveshare_XXXX"). Connect to this network.
2. Доступ Web інтэрфейс: Адкрыйце a web browser and navigate to the default IP address (refer to the product documentation or quick start guide for the specific IP, commonly 192.168.1.1).
3. Лагін: Enter the default username and password (usually "admin" for both, or as specified in documentation).
4. Наладзьце параметры сеткі: У межах ст web interface, configure the desired operating mode (STA, AP+STA, etc.), WiFi credentials (SSID, password for STA mode), and Ethernet settings if applicable.
5. Захаваць і перазагрузіць: Save your settings and reboot the device for changes to take effect.

6. Рэжымы працы

Пераўтваральнік падтрымлівае розныя рэжымы працы ў залежнасці ад патрабаванняў розных ужыванняў:

6.1. Wireless Networking Modes

• Рэжым кропкі доступу (AP): The device acts as a WiFi hotspot, allowing other WiFi-enabled devices to connect to it directly. This is often the default mode for initial setup.
• STA Mode (Station): The device connects to an existing WiFi network (e.g., your home or industrial WiFi router) as a client.
• AP+STA Mode: The device functions as both an Access Point and a Station simultaneously, allowing local devices to connect to it while it also connects to an external WiFi network.

Figure 6.1: Visual representation of the three primary wireless networking modes: AP mode (device as hotspot), STA mode (device as client to existing network), and AP+STA mode (device as both hotspot and client).

6.2. Метады камунікацыі

• Transparent Transmission Mode:
  • TCP-сервер: The device listens for incoming TCP connections from clients.
  • TCP-кліент: The device initiates a TCP connection to a remote TCP server.
  • UDP-сервер: The device listens for incoming UDP packets.
  • UDP-кліент: The device sends UDP packets to a specified remote host and port.
• Serial Command Mode: Allows control and configuration via serial AT commands.
• HTTPD-кліент: Enables the device to send serial data to a web server via HTTP requests.
• Modbus TCP to Modbus RTU: Functions as a Modbus gateway, converting Modbus TCP requests from the network to Modbus RTU commands for serial devices, and vice-versa.
• MQTT Gateway: Supports MQTT protocol for IoT cloud integration, allowing serial data to be published to MQTT brokers.

7. Канфігурацыя

The device can be configured using multiple methods:

7.1. Web Канфігурацыя браўзэра

This is the recommended method for comprehensive configuration.

1. Ensure the device is powered on and connected to your network (either via AP mode or STA mode).
2. Адкрыйце a web browser and enter the device's IP address (default or assigned by DHCP).
3. Log in with the correct credentials.
4. Перамяшчацца па web interface to configure network settings (WiFi, Ethernet), serial port parameters (baud rate, parity, data bits), operating modes, and advanced features like Modbus or MQTT.
5. Always save changes and reboot the device when prompted.

7.2. Serial AT Command Configuration

For advanced users or automated setup, the device supports configuration via AT commands sent through the serial port.

1. Connect a computer to the device's RS232 or RS485 port using a serial cable.
2. Use a serial terminal program (e.g., PuTTY, Tera Term) with the correct serial port settings (baud rate, data bits, parity, stop bits).
3. Send AT commands to query status or set parameters. Refer to the detailed AT command set documentation available from waveshare for specific commands and syntax.

7.3. Host Configuration Tool

Waveshare may provide a dedicated host configuration tool (software) for Windows or other operating systems. This tool simplifies the configuration process with a graphical user interface.

1. Download and install the latest version of the configuration tool from the official waveshare webсайт.
2. Connect the device to your computer's network.
3. Launch the tool and follow the on-screen instructions to discover and configure the device.

8. Тэхнічныя характарыстыкі

Detailed technical specifications for the waveshare RS232/485 to WiFi and Ethernet Converter:

8.1. Агульны

• крыніца харчавання: Пастаянны ток 6~36В
• Спосаб сілкавання: DC 5.5 power port, screw terminal
• Памеры (Д × Ш × У): 84.00 × 64.00 × 24.00 мм
• Вага прадмета: 3.52 унцыі

Figure 8.1: Outline dimensions of the converter, showing measurements of 84.00mm length, 64.00mm width, and 24.00mm height. Note: Dimensions are approximate and may have slight variations.

8.2. Камунікацыя

• Ethernet: 10 / 100M auto-negotiation RJ45 connector
• WIFI: 802.11b/g/n сумяшчальны
• Паслядоўны порт: RS232 (ESD/EFT), RS485 (ESD/EFT/surge protection)

8.3. Тэхнічныя характарыстыкі бесправадной сувязі

• Дыяпазон частот: 2.412 ~ 2.484 Ггц
• Бесправадная сетка: Station / AP / AP+Station Mode
• Механізм бяспекі: WPA-PSK / WPA2-PSK
• Тып шыфравання: TKIP / AES
• Магутнасць перадачы:
  • 802.11b: +19dBm (Max.@11Mbps)
  • 802.11g: +18dBm (Max.@54Mbps)
  • 802.11n: +17dBm (Max.@HT20, MCS7); +17dBm (Max.@HT40, MCS7)
• Адчувальнасць прыёму:
  • 802.11b: -89 дБм (@11 Мбіт/с)
  • 802.11g: -81 дБм (@54 Мбіт/с)
  • 802.11n: -73dBm (@HT20, MCS7); -71dBm (@HT40, MCS7)

8.4. Serial Specification

• Хуткасць перадачы: 300 ~ 460800 біт / с
• Біт цотнасці: none, odd, even, mark, space
• Біт дадзеных: 5 ~ 9 bits

8.5. праграмнае забеспячэнне

• пратакол: TCP / UDP / ARP / ICMP / DHCP / DNS / HTTP / MQTT
• Канфігурацыя: Host, Web browser, Serial AT command
• Спосаб зносін: TCP/IP direct communication, VCOM
• Рэжым працы: Transparent transmission, serial command, HTTPD Client, Modbus TCP to Modbus RTU

8.6. Environment Requirement

• Працоўная тэмпература: -40℃ ~ 85℃
• Дыяпазон вільготнасці: 5% ~ 95% адносная вільготнасць

9. Тэхнічнае абслугоўванне

• Уборка: Для чысткі прылады выкарыстоўвайце мяккую сухую тканіну. Не выкарыстоўвайце вадкія ачышчальнікі або аэразолі.
• Абнаўленні прашыўкі: Periodically check the official waveshare website for firmware updates. Updating firmware can improve performance, add features, or fix bugs. Follow the provided instructions carefully during updates.
• Умовы навакольнага асяроддзя: Ensure the device operates within the specified temperature and humidity ranges to prolong its lifespan.
• Кабельныя злучэнні: Regularly inspect all cable connections (power, Ethernet, serial) to ensure they are secure and free from damage.

10. Выпраўленне непаладак

11. Гарантыя і падтрымка

For warranty information, please refer to the warranty policy provided with your purchase or visit the official waveshare website. Waveshare products typically come with a standard manufacturer's warranty covering defects in materials and workmanship.

For technical support, troubleshooting assistance, or to access the latest documentation and software, please visit the waveshare official website or contact their customer support team. Online development resources are available at bit.ly/3L6Bk6m.

When contacting support, please have your product model number (UART-WIFI232-B2) and a detailed description of the issue ready.