Lauer PCS804.1 Operator Terminal
The Lauer PCS804.1 is a miniature operator terminal that packs essential HMI functionality into a 4.3-inch color display. Its compact size makes it ideal for applications where panel space is extremely limited, such as small machinery, medical devices, and laboratory equipment. Despite its small dimensions, it provides robust performance and reliable communication with PLCs and other controllers.
Technical Specifications
Display: 4.3-inch TFT, 480 x 272 pixels, 65,536 colors, LED backlight, 280 cd/m², 400:1 contrast.
Touchscreen: Resistive, 200,000 actuations.
Processor: 32-bit RISC, 200 MHz, 64 MB RAM, 32 MB flash.
Interfaces: 1 x RS232, 1 x RS485, 1 x USB 2.0 device, 1 x Ethernet 10/100 (optional).
Power Supply: 24 V DC (18–30 V DC), consumption 5 W.
Operating Temperature: 0 °C to 45 °C; storage: -20 °C to 60 °C.
Humidity: 10 % to 85 % non-condensing.
Protection: Front IP65, rear IP20.
Mounting: Panel mount, cutout 118 x 75 mm, depth 30 mm.
Weight: 0.4 kg.
Functional Features
The PCS804.1 supports basic screen objects such as buttons, numeric displays, and text messages. It can store up to 500 alarm records and 2000 data points. The terminal is programmed with Lauer Configurator Lite, offering a simplified environment for small projects. Communication drivers include Modbus RTU and ASCII protocols. The unit includes a buzzer and a real-time clock with battery backup.
Installation Guidelines
Mount the terminal in a panel cutout using the clips provided. Ensure the front gasket is clean and properly compressed. Connect power and communication cables; the RS485 port requires termination resistors for long-distance networks. Use the USB port for downloading projects and firmware.
Operating Conditions
This terminal is designed for indoor use in non-condensing environments. Ambient temperature should not exceed 45 °C. Vibration tolerance is 0.3 g (10–150 Hz) and shock 5 g (11 ms). Backlight life is 30,000 hours.
Applications
Typical applications include small injection molding machines, packaging counters, temperature controllers, fan coil units, and simple test stations. It is also used as a parameter setting panel for variable speed drives.
Compliance and Certifications
CE certified. Complies with EN 61000-6-2 and EN 61000-6-3. RoHS compliant.
Ordering Variants
Available with or without Ethernet, extended temperature option, and different mounting kits. Customizable startup logos and default language settings can be ordered.




