Omron NT20S-ST121-V1 programmable terminal, 24VDC, RS-232C RS-422A/485

A Human-Machine Interface (HMI) is a device that allows human operators to interact with machines, systems, or processes, typically in an industrial environment. The HMI serves as a bridge between the user and the machine, enabling the user to monitor, control, and manage various aspects of the operation through a user-friendly interface. An HMI device typically consists of a display screen, often touch-sensitive, that shows information about the status and performance of a machine or process. The device may include input options such as buttons, touchscreens, or keypads, allowing the operator to input commands, adjust settings, and respond to alarms.

HMI panel specifications:

• Programmable interface:
  • The display can be programmed using Omron’s NT support tool software, allowing users to design custom graphical interfaces for monitoring and controlling industrial processes.
• Alarm and event handling:
  • The device can display alarms and events, which can be customized according to user requirements.
• Data logging:
  • Capable of logging operational data and parameters for later analysis.
• Multi-language support:
  • The display supports multiple languages, making it versatile for global operations.
• Graphics capabilities:
  • Includes support for bitmaps and other graphical elements to create intuitive and user-friendly HMI screens.
• Connectivity:
  • Supports connection to Omron PLCs and other devices through standard communication protocols, enhancing its flexibility in various industrial environments.

Technical details:

• Operating voltage:
  • 24VDC (20,4...27,6VDC)
• Max power consumption:
  • 10W
• Screen size:
  • 5,1"
• Resolution:
  • 256x128 pixels
• Display colors:
  • STN monochrome LCD
• Supported features:
  • Screen transfer
  • Screen data compatibility
  • PLC ladder
  • Backlight replacement
• Screen data memory:
  • 96KB
• Communications:
  • Host link/NT link
• Communications connector:
  • 9pin DB-9F RS-232C
    • Connect the cable for connection to the host or Support Tool here. A bar code reader can  also be connected here. This is a 9-pin connector for RS-232C use only.
• RS-232C connector pinout:
  • Pin 1:
    • Functional ground
  • Pin 2:
    • Receive data (RXD)
  • Pin 3:
    • Send data (SXD)
  • Pin 4:
    • Clear to send (CTS)
  • Pin 5:
    • Request to send (RTS)
  • Pin 6:
    • +5VDC
  • Pin 7:
    • Not connected
  • Pin 8:
    • Not connected
  • Pin 9:
    • Signal ground
• Operating temperature range:
  • 0...+50°C
• Storage temperature:
  • –20...+70°C
• Operating humidity:
  • 35...85% RH (non-condensing)
• Vibration resistance (during operation):
  • 5...9Hz with 3,5mm amplitude
  • 9...57Hz with an acceleration of 9,8m/s² for 10 times (1 octave/min) in X, Y, and Z directions
• Shock resistance (during operation):
  • 147m/s²  in X, Y, and Z directions, 3 times each
• Panel cutout dimensions:
  • 166x132mm
• Panel thickness:
  • 1,6...4,8mm
• Front panel protection degree:
  • IP65 (equivalent to NEMA4)

Download Omron NT20S-series programmable terminal user manual