The **W2PA-10C-R2/CE** is a specialized high-performance industrial wireless adapter (often referred to as a wireless LAN unit) manufactured by **SMC Corporation**. It is primarily used for establishing wireless communication in factory automation environments where traditional cabling is impractical or prone to failure (such as on robotic arms or rotary tables). --- ### 1. Key Technical Specifications The device acts as a bridge between Ethernet-based industrial equipment and a wireless network. | Feature | Specification | | :--- | :--- | | **Communication Protocol** | IEEE 802.11b/g/n (2.4 GHz Band) | | **Interface** | Ethernet (RJ45 Connector) | | **Input Voltage** | 24 VDC | | **Current Consumption** | 100 mA or less | | **Operating Temperature** | -10°C to 50°C | | **Enclosure Rating** | IP67 (Dust-tight and water immersion protection) | | **Max. Connections** | Supports up to 10 remote units (depending on configuration) | --- ### 2. Major Electronic Components & Features The "electronic parts" of this unit are designed for high reliability and noise immunity in electromagnetic-heavy environments. #### A. Wireless Module (Transceiver) * **Frequency Hopping/Fixed Channel:** Uses the 2.4 GHz ISM band. It includes internal circuitry to manage signal interference, which is common in factories with motors and high-voltage lines. * **Security:** Features hardware-level encryption (WPA2-PSK) to ensure that industrial data remains secure from unauthorized access. #### B. Power Supply Circuitry * Designed to handle the standard **24V industrial power**. * Includes built-in protection against **reverse polarity** and **voltage surges**, ensuring the internal PCB isn't fried by unstable factory power grids. #### C. The "R2/CE" Designation * **R2:** Typically refers to the hardware revision or a specific frequency/regional setting (often optimized for Japanese or specific international standards). * **CE:** Indicates the unit complies with European Union safety, health, and environmental protection requirements (CE Marking). --- ### 3. Connection & Logic Layout The unit functions as a "Base" or "Remote" station to pass signals between a PLC (Programmable Logic Controller) and I/O devices. 1. **Ethernet Port:** Connects to the host PLC or local switch. 2. **Internal Processor:** Encapsulates Ethernet packets into wireless frames. 3. **LED Indicators:** Electronic diagnostic lights on the casing show: * **PWR:** Power status. * **W-LINK:** Wireless link established. * **W-ACT:** Wireless data transmission activity. --- ### 4. Application Example | Scenario | Usage | | :--- | :--- | | **Robotic End-Effector** | Transmitting sensor data from a moving tool without wearing out cables. | | **Rotary Tables** | Eliminating the need for complex "slip rings" by sending data wirelessly. | | **AGVs (Automated Guided Vehicles)** | Providing a constant data link to the central control system while moving. |