In the fields of industrial automation and building control, human-machine interface is not only a window for information display, but also a bridge between operators and systems. Exor's eTOP306, as a member of the UniOP eTOP Series 300 family, has become an ideal choice for many mid to low end cost sensitive applications due to its excellent display performance, rich connection methods, and flexible expansion capabilities. This article is based on the official specifications, combined with technical background and application practice, to comprehensively analyze the design concept, functional characteristics, and practical application value of eTOP306 for you.
Product positioning and market value
ETOP306 is positioned in the high-performance and cost-effective industrial human-machine interface market. It combines modern industrial design aesthetics with practical functions, suitable for on-site monitoring in traditional manufacturing industries as well as emerging fields such as intelligent buildings, HVAC, and environmental monitoring. Its compact body and installation depth of less than 50mm make it easy to deploy in space limited control cabinets.
As an important member of the UniOP family, eTOP306 is fully compatible with Designer 6 programming software, allowing users to seamlessly migrate existing projects and greatly reducing development and maintenance costs.
Core display and touch technology
1. Display performance
The eTOP306 is equipped with a 5.7-inch TFT color LCD display with a resolution of 320x240 pixels (QVGA) and supports up to 64K color displays. Compared to traditional STN screens, TFT technology brings faster response speed, wider viewing angle, and higher color saturation. The use of LED backlighting not only reduces power consumption, but also extends the lifespan of the screen, making it suitable for industrial environments with long-term continuous operation.
2. Touch technology
Adopting resistive touch screen technology, it supports finger, glove or stylus operation and adapts to the possible oil stains, dust or humid environment in industrial sites. The touch lifespan exceeds one million times, ensuring long-term reliability. Through the macro editor of Designer 6, developers can freely configure the response behavior of touch areas and implement complex interaction logic.
Hardware architecture and interface configuration
1. Processor and Memory
ETOP306 has 64MB of built-in user memory, which is sufficient to support complex graphical interfaces, multilingual text, and trend data. Its hardware platform has been optimized to smoothly run vector graphics and multi-layer interfaces, meeting the requirements of modern HMI for dynamic effects and real-time data refresh rates.
2. Communication interface
Ethernet interface: 10/100M adaptive, supporting direct communication with devices such as PLC, drivers, sensors, etc. It can also be used for program download, data acquisition, and integration with upper computer systems. Through the UniNet network protocol, multiple eTOP306s can share data and build a distributed monitoring system.
USB Host Interface: Supports connecting storage devices such as USB drives, facilitating backup and upgrade of applications, as well as import and export of recipes and log files. Users can complete system updates without opening the control cabinet, greatly improving maintenance efficiency.
Optional bus module: TCM or SCM series modules can be installed through the side expansion slot, supporting mainstream fieldbus protocols such as Profibus, DeviceNet, CANopen, etc., to achieve seamless integration with various industrial equipment.
3. Power supply and power consumption
ETOP306 adopts industrial standard 24VDC power supply, with power consumption controlled at a low level, suitable for long-term continuous operation. Its power circuit has overcurrent protection and reverse connection protection functions, enhancing the safety and reliability of the system.

Software Platform and Development Environment
1. Designer 6 programming software
The software development of eTOP306 relies on Exor's powerful Designer 6 platform. This software runs on the Windows environment, providing an intuitive graphical programming interface and a rich library of controls, supporting the following core functions:
Vector graphics engine: supports advanced graphic features such as object transparency, multi-layer overlay, rotation, and scaling, making interface design more flexible and aesthetically pleasing.
Multi language support: Built in Unicode encoding support, capable of managing multiple language texts simultaneously, including Far Eastern characters such as Chinese, Japanese, Korean, etc. Text information can be exported as an external file for professional translators to handle.
Macro Command Editor: With a simple scripting language, developers can write response logic for touch actions, variable changes, and other events to achieve complex control functions.
Communication driver library: Built in over 150 communication protocol drivers, covering mainstream PLC brands such as Siemens, Mitsubishi, Rockwell, Omron, as well as general protocols such as Modbus and CANopen.