Overview
The Omron NT30-ST131B-E is a touchscreen operator interface (HMI/OIT) built around a 5.5-inch diagonal monochrome LCD display with 320×240 pixel resolution. Powered by 24 VDC at 15 watts, this unit combines rugged industrial design with straightforward touch-based data entry for process control, machine operation, and production monitoring. The black case provides a professional appearance suitable for factory and control panel environments.
Key Features
- 5.5-inch Monochrome LCD Display — Clear 320×240 resolution with white/red backlight for visibility in industrial settings
- Touch-Activated Controls — Intuitive touch switches for data input, with pop-up windows for efficient screen usage
- Dual Serial Communication — RS-232C and RS-422A interfaces for connection to PLCs, PCs, and programmable terminals
- IP65 Waterproof Rating — Dust-tight and water-resistant, engineered for harsh manufacturing and washdown environments
- Field-Replaceable Components — Backlight unit and battery replaceable at the operation site without factory service
- 50,000-Hour Display Life — Long-running LCD panel designed for extended industrial duty cycles
Technical Specifications
- Display Type: STN LCD Monochrome with white/red backlight
- Screen Size: 5.5 inches (5.7 inches diagonal measurement)
- Resolution: 320 × 240 dots
- Input Power: 24 VDC
- Power Consumption: 15 watts
- Communication Ports: RS-232C, RS-422A
- Printer Output: Centronics-compatible connector
- Operating Temperature: 0°C to 50°C
- Ingress Protection: IP65 (dust-tight, water-resistant)
- Housing Color: Black
- Display Life Expectancy: 50,000 hours minimum
- Mounting: Panel mount design
Typical Applications
- Industrial process control and monitoring dashboards
- Manufacturing equipment operator interface panels
- Pump and motor control stations
- Food and beverage production line displays
- Washdown-rated control stations in damp or wet environments
- Legacy system retrofit and PLC interconnection
Compatibility & Replacements
Compatible With
- Omron PLCs and programmable controllers via RS-232C and RS-422A
- Host Link and NT Link communication protocols
- Centronics-standard printer devices
- Omron System Installer programming software for screen customization
- Industrial automation networks with serial-based architecture
Replaces / Drop-In Replacement For
- Omron NT30-ST131-E (ivory version)
- Omron NT30-ST131B (earlier revision)
Works With
- Omron NT612G/610C programmable terminal systems
- RS-232C and RS-422A serial communication protocols
- Legacy Omron automation software and PLC programming environments
- Host Link industrial control networks










