The **DL8-E-R** is a specific model within the **DL8 series of Web Loggers** manufactured by **M-System** (now MG CO., LTD). It is primarily used in industrial automation for remote monitoring and data logging. ### 1. Core Technical Specifications The DL8-E-R acts as a gateway that collects data from I/O modules and transmits it via Ethernet. | Feature | Specification | | :--- | :--- | | **Model** | DL8-E-R | | **Type** | Web Logger (Remote I/O Interface) | | **Network Interface** | Ethernet (10BASE-T / 100BASE-TX) | | **Power Input** | 24V DC | | **Mounting** | DIN Rail | | **Expansion** | Connects to R8 series I/O modules | | **Data Storage** | Internal memory + SD Card slot (for logging) | --- ### 2. Electronic Components & Connectivity The "electronic parts" of the DL8-E-R refer to its internal architecture and external interface ports: #### A. Microprocessor & Memory * **CPU:** An industrial-grade ARM-based processor handles the embedded Web Server and Modbus TCP/IP protocols. * **Storage:** It features non-volatile internal memory for configuration and a **MicroSD card slot** for long-term CSV data logging. #### B. Communication Ports * **Ethernet Port (RJ45):** Supports HTTP (web browsing), FTP (file transfer), SMTP (email alerts), and Modbus/TCP. * **Internal Bus:** A proprietary side-connector bus used to link with **R8 Series** discrete or analog I/O modules. #### C. Power & Protection * **Power Terminals:** Screw terminals for 24V DC input. * **Isolation:** The unit features optical and galvanic isolation between the power supply, communication ports, and the internal logic to prevent damage from electrical surges. --- ### 3. Functional Capabilities The electronic design allows the unit to perform three main roles: 1. **Web Server:** It hosts a built-in website. You can view real-time data on a smartphone or PC without installing software. 2. **Alarm System:** It can electronically trigger "Email Notifications" if a sensor value exceeds a set threshold. 3. **Protocol Converter:** It converts physical signals (from connected I/O modules) into digital data packets (Modbus TCP). --- ### 4. Part Number Breakdown: DL8-E-R * **DL8:** Series name (Web Logger). * **E:** Ethernet interface. * **R:** Power input specification (usually 24V DC).