Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
AI TechDocKnowledge

Glossary · Requirements and interfaces

Touchscreen

Also known as: Touch panel, Touch display

German: Touchscreen

In automation, a touchscreen is a display that detects touch input and is used as the operating element of an HMI panel, allowing operators to view process information and enter commands directly on the screen.

  • Integrated systems
  • Data and interfaces

In one sentence

A touchscreen is a touch-sensitive display used as an HMI operating element for viewing process data and entering commands.

Example

The operator changes the format on the machine's 15-inch touchscreen, while the emergency stop remains a separate hardwired pushbutton next to the panel.

How it applies

  • Engineering: Touch technology (resistive, projected capacitive) affects use with gloves, water and cleaning agents; button size and confirmation dialogs affect operating errors.
  • Safety: The Emergency stop must be a separate, dedicated device; touchscreen elements are not a substitute. Commands that start hazardous motion need protection against accidental touch.
  • Documentation: Screen-based procedures need clear references to screens and buttons; the documentation team should use the exact HMI labels and keep screenshots aligned with the software version.
  • Maintenance: Touchscreens need cleaning instructions compatible with the surface and the operating environment.

Contrast, font size and language settings affect readability, especially for safety-relevant messages. Touch input should give visible feedback, so operators know a command was accepted.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Knowledge editorial definition, based on HMI design practice and IEC 60204-1

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

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