1. Product Overview
The LPSECURITY Protoss-PW11 is a DIN-Rail mountable serial server designed to convert RS485 serial communication to WiFi. It supports various network protocols including Modbus TCP to RTU, making it suitable for industrial automation and control applications. The device is available in different power input versions: Protoss-PW11-M (9-48VDC) and Protoss-PW11-H (100-240VAC).
2. Specifications
The following table details the technical specifications of the Protoss-PW11 serial server:
| Feature | Specification |
|---|---|
| Processor | 160MHz |
| Basic Frequency | 160MHz |
| Flash | 2MB |
| SDRAM | 352KB |
| Operating System | mbed |
| Network Protocol | IP, TCP, UDP, DHCP, DNS, HTTP Server/Client, ARP, BOOTP, AutoIP, ICMP, Web socket, Telnet, uPNP, NTP, Modbus TCP |
| Security Protocol | TLS v1.2 AES 128Bit DES3 |
| Network Mode | STA/AP/STA+AP |
| Transmit Power | 802.11b: +18dBm(Max.), 802.11g: +16dBm(Max.), 802.11n: +15dBm(Max.) |
| Receive Sensitivity | 802.11b: -89dBm, 802.11g: -81dBm, 802.11n: -71dBm |
| Wi-Fi Security | WEP64/WEP128/TKIP/AES |
| Port Number | 1 RS485 |
| Data Bits | 7, 8 |
| Stop Bit | 1, 2 |
| Check Bit | None, Even, Odd |
| Baud Rate | TTL: 600bps~230400bps |
| Flow Control | No Flow control Software Xon/Xoff flow control |
| Configuration | Web CLI XML import Telnet IOTService PC Software |
| Size | 102.03 x 64.95 x 27.50 mm |
| Storage Temp. | -45 ~ 105°C, 5 ~ 95% RH |
| Input Voltage | Protoss-PW11-H: 100-240VAC@50-60Hz, Protoss-PW11-M: 9-48VDC@1A |
| Working Current | ~200mA |
| Power | <700mW |
| Wi-Fi Standard | 802.11 b/g/n |
| Work Temp. | -40 ~ 85°C |
3. Setup and Installation
The Protoss-PW11 is designed for C45 DIN-rail installation, offering a flexible and compact solution for various industrial settings.
3.1 Power Input
Ensure you select the correct model based on your power requirements:
- Protoss-PW11-M: Input 9-48VDC @ 1A
- Protoss-PW11-H: Input 100-240VAC @ 50-60Hz
Connect the power supply to the VCC+ and GND terminals. For AC models, connect to L (Line) and N (Neutral) terminals.
3.2 RS485 Connection
Connect your RS485 device to the A+ and B- terminals on the Protoss-PW11. Ensure correct polarity for proper communication.
3.3 Antenna Installation
Screw the provided WiFi antenna onto the SMA connector on the top of the device. For optimal performance, ensure the antenna is positioned vertically and away from obstructions.
3.4 Ethernet Connection (Protoss-PW21 models only)
For models supporting both WiFi and Ethernet (e.g., Protoss-PW21, as shown in the product video), connect an Ethernet cable to the RJ45 port for wired network connectivity.
Video 1: Overview of different Protoss serial converter models, showing RS485 to Ethernet (PE11) and RS485 to WiFi (PW11) versions, along with their power input types (DC and AC) and antenna connections.
4. Operating Instructions
4.1 Power On and LED Indicators
Once powered, observe the LED indicators on the front panel:
- Power (Red): Indicates the device is powered on.
- Link (Green): Indicates a network connection (WiFi or Ethernet).
- Active (Green): Indicates data transmission activity.
- Net (Green): Indicates network status.
4.2 Configuration
The Protoss-PW11 can be configured via a webpage interface or the IOTService PC software. It supports SmartLink V8 Smart Config for easy setup.
- Webpage Configuration: Connect to the device's WiFi network (if in AP mode) or access its IP address on your local network. Open a web browser and navigate to the device's IP address to access the configuration interface.
- IOTService PC Software: Install the IOTService PC software on your computer. Use it to discover and configure the device on your network.
- SmartLink V8 Smart Config: Utilize the provided mobile application for simplified configuration, especially for initial WiFi setup.
4.3 Network Modes
The device supports STA (Station), AP (Access Point), and AP+STA modes, allowing flexible integration into existing networks or creation of a local access point.
4.4 Modbus TCP to RTU Conversion
The Protoss-PW11 acts as a Modbus gateway, converting Modbus TCP commands received over WiFi (or Ethernet) to Modbus RTU commands for the connected RS485 device, and vice-versa. It also supports Modbus Master Functionality.
4.5 Firmware Update (OTA)
The device supports Over-The-Air (OTA) firmware upgrades via its webpage interface, ensuring you can keep your device updated with the latest features and security patches.
5. Maintenance
The Protoss-PW11 is designed for robust industrial use with a wide operating temperature range. Regular maintenance is minimal:
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
- Firmware Updates: Periodically check for and apply firmware updates via the OTA feature to ensure optimal performance and security.
- Environmental Conditions: Ensure the device operates within its specified temperature range (-40 to +85°C) and humidity (5-95% RH) to prevent damage.
6. Troubleshooting
If you encounter issues with your Protoss-PW11, consider the following troubleshooting steps:
- No Power: Check the power supply connection and ensure it matches the device's voltage requirements (9-48VDC for -M models, 100-240VAC for -H models). Verify the Power LED is illuminated.
- No Network Connection (Link LED off):
- WiFi: Ensure the antenna is securely attached. Check WiFi settings in the configuration interface (SSID, password).
- Ethernet (if applicable): Verify the Ethernet cable is properly connected to a working network port.
- RS485 Communication Issues:
- Check RS485 wiring (A+ to A+, B- to B-).
- Verify baud rate, data bits, stop bits, and parity settings in the device configuration match the connected RS485 device.
- Ensure the RS485 device is powered and functioning correctly.
- Device Unresponsive: If the device becomes unresponsive, use the 'Reset' button (small hole, requires a pin) to perform a soft reset. If issues persist, use the 'Reload' button for a factory reset (consult the full user manual for specific reset procedures).
7. User Tips
- For initial setup, it is often easiest to connect the device to a PC via Ethernet (if available) or directly to its AP mode WiFi network to access the web configuration interface.
- When using Modbus TCP to RTU, ensure the Modbus slave ID configured in the device matches the physical slave ID of your RS485 device.
- Keep the device's firmware updated to benefit from performance improvements and new features.
- Consider the industrial temperature range (-40 to +85°C) when deploying the device in harsh environments.
8. Warranty and Support
For warranty information, technical support, or further assistance, please refer to the official LPSECURITY website or contact your vendor. Keep your purchase receipt for warranty claims.
