PLC HMI Controller – 4.3″ Touchscreen, 12 DI / 12 Relay DO with Configurable I/O

The EX3U-8043H-24MR is a compact integrated PLC and HMI controller, combining control logic, operator interface, and I/O into a single device for efficient industrial automation and machine control.

Featuring a 4.3″ colour touchscreen, the unit enables real-time system monitoring, parameter adjustment, and control directly from the panel, eliminating the need for a separate HMI.

The controller includes 12 digital inputs (DI) and 12 relay outputs (DO), making it suitable for switching loads such as pumps, motors, alarms, and solenoids in a wide range of industrial applications.

For process measurement and control, the unit supports configurable analogue input options, allowing direct connection to temperature sensors (RTDs, thermocouples), voltage signals, and current transmitters. Optional analogue outputs enable control of external devices such as VSDs, control valves, and actuators.

The relay output configuration provides electrical isolation and flexibility, making it ideal for general-purpose industrial control where switching reliability and simplicity are required.

This controller is well suited to:

• Control panel builders
• OEM machinery manufacturers
• Industrial automation systems
• Process control applications
• Water, HVAC, and energy systems

Key Features

• Integrated PLC + HMI in one compact unit
• 4.3″ touchscreen interface for monitoring and control
• 12 digital inputs and 12 relay outputs
• Relay outputs for robust switching and electrical isolation
• Flexible analogue input configurations (temperature, voltage, current)
• Optional analogue outputs for process control
• Compact panel-mount design
• Reduces wiring and system complexity

Applications

• Pump and motor control systems
• Temperature and process control
• HVAC and building automation
• Water and wastewater systems
• Packaging and machinery control
• Industrial automation panels
• OEM equipment integration