Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
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Glossary · HMI, SCADA and operations

Magelis HMI STO/STU

Also known as: Magelis STO, Magelis STU, Harmony STO/STU

German: Magelis HMI STO/STU

In industrial automation, Magelis HMI STO and STU are compact touch-screen operator panel ranges from Schneider Electric for small machines, configured with Schneider Electric's HMI engineering software; the Magelis ranges have since been continued under the Harmony brand.

  • HMI and SCADA
  • Vendor product

In one sentence

Magelis HMI STO/STU are compact touch panel ranges from Schneider Electric for small machines, now continued under the Harmony brand.

Example

A small packaging machine uses a Magelis STU panel mounted in the control cabinet door to show machine status and let the operator change counters.

How it applies

  • Engineering: Compact panels like these connect to the machine controller via Ethernet or serial links. Check that the panel's supported protocols, screen size and IP rating fit the machine.
  • Maintenance: For replacements, check whether the original model is still available or which successor model and software version the vendor recommends, and whether the existing project can be converted.
  • Documentation: Name the exact model and order number in the parts list and refer to Schneider Electric's manuals for installation and panel settings. Screenshots in the machine's operating manual should come from the delivered project, not from vendor demos.

Keep in mind: Product names, brands and features change; the Magelis ranges have been rebranded. Check designations, successors and software against Schneider Electric's current documentation before publishing.

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

Source: AI TechDoc Knowledge editorial definition, based on vendor documentation for HMI operator panels

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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