The **Magelis HMISCU6A5** is an integrated HMI (Human Machine Interface) controller developed by Schneider Electric. It belongs to the Magelis SCU series, which combines a display unit with a built-in control system (PLC functionality). Below is a breakdown of its core electronic parts and technical specifications. --- ## 1. Core Technical Specifications The unit is divided into two main physical parts: the **Display Module** and the **Rear Module** (Processing unit). | Component | Specification | | :--- | :--- | | **Display Type** | 3.5-inch Backlit Color TFT LCD | | **Resolution** | 320 x 240 pixels (QVGA) | | **CPU** | RISC 32-bit Processor | | **Memory** | 128 MB Flash (System/Project) + 128 KB Backup (Retain) | | **Supply Voltage** | 24V DC | | **I/O Integration** | Embedded Digital and Analog I/O | --- ## 2. Integrated Electronic Interfaces The HMISCU6A5 is designed for industrial automation, featuring several communication and signal ports: ### A. Communication Ports * **Ethernet (RJ45):** 10/100 Mbps port used for programming, Modbus TCP/IP communication, and connecting to wider industrial networks. * **Serial Link (RJ45):** RS-232/RS-485 port supporting protocols like Modbus RTU/ASCII. * **USB Ports:** * *Type A:* For USB memory sticks (logging) or keyboards. * *Mini-B:* For direct PC-to-HMI programming. ### B. Embedded I/O (Input/Output) Unlike standard HMIs, this unit acts as a controller with physical pins: * **Digital Inputs:** 6 inputs (including 2 high-speed counters). * **Digital Outputs:** 2 solid-state outputs (Source type). * **Analog Inputs:** 2 inputs (supporting 0-10V, 4-20mA, or temperature sensors like Pt100/Thermocouples). * **Analog Outputs:** 2 outputs (0-10V or 4-20mA). --- ## 3. Physical Construction The device uses a unique modular mounting system: 1. **The Front Panel:** IP65 rated, containing the resistive touchscreen and the LCD panel. 2. **The Rear Module:** Attached to the back of the panel or remotely via a cable. This contains the motherboard, CPU, and I/O terminal blocks. 3. **Mounting:** Uses a standard 22mm circular hole (the same size as a standard pushbutton), making installation in control panels extremely efficient. --- ## 4. Programming Software The electronic logic and visual interface are programmed using **EcoStruxure Machine Expert** (formerly SoMachine). This allows the user to write PLC logic (IEC 61131-3) and design the HMI screens in a single environment. ---