Omron NT631C-ST152-EV2 10.4-inch color terminal

The captured NT631/NT31 documentation identifies NT631C-ST152-EV2 as a color TFT programmable terminal. The documentation records 640 x 480 resolution, a 10.4-inch display area, 24 V DC supply, pressure-sensitive touch input, and serial interfaces for NT631C-ST152-EV2.

Documented system function and position

Rebuilt from individual evidence

The captured NT631/NT31 documentation identifies NT631C-ST152-EV2 as a color TFT programmable terminal.

The documentation records 640 x 480 resolution, a 10.4-inch display area, 24 V DC supply, pressure-sensitive touch input, and serial interfaces for NT631C-ST152-EV2.

Sits in the operator panel between the operator and the connected PLC.

Unknown: installed screen project, exact interface wiring, PLC protocol settings, unit condition, and current commercial availability are not established by the captured documentation.

Exact reference: NT631C-ST152-EV2
Category: HMI / Display
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Displays color HMI screens and exchanges control data with a PLC through its serial interfaces.
System position: Sits in the operator panel between the operator and the connected PLC.
Upstream / inputs: Receives PLC status, data, and screen instructions through the configured serial interface.
Downstream / outputs: Sends touch-switch actions and terminal data to the PLC.
Limitations: Unknown: installed screen project, exact interface wiring, PLC protocol settings, unit condition, and current commercial availability are not established by the captured documentation.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The captured NT631/NT31 documentation identifies NT631C-ST152-EV2 as a color TFT programmable terminal.
Confidence: high
- www.nexinstrument.com — retrieved 2026-09-12; high confidence
The documentation records 640 x 480 resolution, a 10.4-inch display area, 24 V DC supply, pressure-sensitive touch input, and serial interfaces for NT631C-ST152-EV2.
Confidence: high
- www.nexinstrument.com — retrieved 2026-09-12; high confidence

Inferences

Inferred system position: Sits in the operator panel between the operator and the connected PLC.
Confidence: medium
Rationale: The documented product function and interfaces establish the adjacent system stages.
- www.nexinstrument.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: installed screen project, exact interface wiring, PLC protocol settings, unit condition, and current commercial availability are not established by the captured documentation.
Confidence: low
Missing evidence: installed screen project, exact interface wiring, PLC protocol settings, unit condition, and current commercial availability are not established by the captured documentation.

System position diagram

A flow from Receives PLC status, data, and screen instructions through the configured serial interface. through NT631C-ST152-EV2 to Sends touch-switch actions and terminal data to the PLC.. — System position inferred from the captured evidence: Sits in the operator panel between the operator and the connected PLC.

View Mermaid source

flowchart LR
  upstream["Receives PLC status, data, and screen instructions through the configured serial interface."] -->|"documented input"| item["NT631C-ST152-EV2"]
  item -->|"documented output"| downstream["Sends touch-switch actions and terminal data to the PLC."]

View diagram labels

Nodes: Receives PLC status, data, and screen instructions through the configured serial interface.; Omron NT631C-ST152-EV2 10.4-inch color terminal; Sends touch-switch actions and terminal data to the PLC.
Edges: Documented upstream interface; Documented downstream interface

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