Omron NT31-ST123-EV3 Operator Interface Panel

The Omron NT31-ST123-EV3 is a 5.7-inch monochrome STN LCD operator interface panel that provides real-time HMI control and monitoring for PLC-based automation systems. It accepts touchscreen input and is designed for panel-mount installation in control panels, packaging machines, conveyors, and manufacturing lines requiring operator interaction to view system status and adjust parameters. Key specs include RS-232C, RS-422A, and RS-485 communication ports, 24 VDC power, and internal screen data storage, with an operating temperature range from 0°C to +50°C to suit typical industrial environments. The display measures approximately 5.7 inches with a 320 x 240 pixel resolution, and it is compatible with Omron PLC series and other controllers in the same ecosystem. Common replacements for this panel include Omron NB5Q-TW01B HMI Panel and Omron NS5-SQ10B-V2 HMI Panel, making retrofit or replacement straightforward for systems using Omron NT31 family interfaces.