Wide compatibility with various PLCs and intelligent controllers that have communication ports, enabling seamless integration and improved control efficiency. Realtime monitoring and control of PLC internal registers or relays. View and modify values or states in text form or via indicator lights, giving operators flexible control over equipment. Easy data transfer to the display without PLC programming. The device can download the communication protocol and screen data directly to the display, eliminating the need to write PLC communication programs. Durable construction and reliable performance. Made with ABS material and equipped with an imported chip, providing good antishock resilience and stable operation. Use scenarios Factory automation line tuning: Quickly adjust PLC register values or relay states on the fly to optimize process parameters without modifying PLC software, reducing downtime and speeding up commissioning. Equipment maintenance and diagnostics: Use the text display and indicator lights to monitor register/relay states, test responses, and diagnose faults without reprogramming or extensive PLC changes. Building automation and process monitoring: Integrate with multiple PLCs or intelligent controllers to centralize status monitoring and control, improving overall system visibility and responsiveness.