NT3S-ST123B-E belongs to classic Omron NT3S small touch terminal family. Display:4.1 inch monochrome STN LCD, green backlight, 192×64 pixels, analog resistive touchscreen. Power DC24V, total application memory 63KB, onboard battery for real-time clock and retention register data. Two serial communication ports: COM1 RS232/422/485 for PLC connection, COM2 RS232C for program download or printer.

Programming software is NTXS. It supports text display, touch button, numeric input, alarm message, multi-language switching. Front panel IP65 dust and splash resistant, rear housing IP20. Physical dimension 140 ×77 ×35 mm, panel cutout size 132 ×69 mm, weight 0.38kg. LED indicators display power and operation status for quick on-site troubleshooting. Operating temperature 0~50℃.

NT3S-ST123B-E is obsolete Omron HMI spare part. Many old automation machines still use NT3S series panels. When the original unit fails, replacing it with identical NT3S-ST123B-E can reuse panel cutout, wiring and original NTXS project without redevelopment. Technicians install the touch panel, download screen program and verify PLC serial communication, so machine local operation and monitoring system resumes operation and reduces downtime.

Before shipment, every NT3S-ST123B-E undergoes comprehensive functional inspection including power-on self-test, touch calibration, LCD display inspection, serial communication verification and memory read-write test. All products come with 12-month warranty. Our automation technical team provides remote support for project backup, screen download, wiring guidance and communication fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, NT3S-ST123B-E is reliable spare compact monochrome touch operator panel for legacy Omron NT3S control systems. It restores local machine operation and process data monitoring functions, extends service life of automation assets and avoids high-cost whole control system renovation.