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Schneider Electric TWDLMDA40DTK Twido modular PLC controller

Schneider Electric identifies TWDLMDA40DTK as a Twido modular base controller with 24 V DC supply and 40 discrete I/O. The Twido user guide lists 24 discrete inputs, 16 transistor source outputs, an integrated serial port, and support for up to seven expansion I/O modules for TWDLMDA40DTK.

Documented system function and position

Rebuilt from individual evidence

Schneider Electric identifies TWDLMDA40DTK as a Twido modular base controller with 24 V DC supply and 40 discrete I/O.

The Twido user guide lists 24 discrete inputs, 16 transistor source outputs, an integrated serial port, and support for up to seven expansion I/O modules for TWDLMDA40DTK.

Sits between discrete field devices and transistor outputs in the Twido control station.

Unknown: installed wiring, firmware, condition, and installation-specific compatibility are not established by the captured sources.

Exact reference
TWDLMDA40DTK
Category
PLC / CPU
Evidence checked
2026-09-12

System role

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

Function
Controls discrete automation logic in a Twido control station.
System position
Sits between discrete field devices and transistor outputs in the Twido control station.
Upstream / inputs
Receives 24 V DC power and discrete signals from field devices.
Downstream / outputs
Switches transistor-source outputs for downstream control loads.
Limitations
Unknown: installed wiring, firmware, condition, and installation-specific compatibility are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

  • Schneider Electric identifies TWDLMDA40DTK as a Twido modular base controller with 24 V DC supply and 40 discrete I/O.

    Confidence: high

    • www.se.com — retrieved 2026-09-12; high confidence

  • The Twido user guide lists 24 discrete inputs, 16 transistor source outputs, an integrated serial port, and support for up to seven expansion I/O modules for TWDLMDA40DTK.

    Confidence: high

  • Controls discrete automation logic in a Twido control station.

    Confidence: high

    • www.se.com — retrieved 2026-09-12; high confidence

Inferences

  • Inferred system position: Sits between discrete field devices and transistor outputs in the Twido control station.

    Confidence: medium

    Rationale: The exact-reference identity and documented product function establish the adjacent system stages.

    • www.se.com — retrieved 2026-09-12; high confidence

Unknowns

  • Unknown: installed wiring, firmware, condition, and installation-specific compatibility are not established by the captured sources.

    Confidence: low

    Missing evidence: The captured sources do not establish installed wiring, firmware, condition, or installation-specific compatibility.

System position diagram

A flow from Receives 24 V DC power and discrete signals from field devices. through TWDLMDA40DTK to Switches transistor-source outputs for downstream control loads..

Reading limit: system position only, not a wiring or safety drawing.

System placement inferred from the cited evidence: Sits between discrete field devices and transistor outputs in the Twido control station.

Enlarged system diagram

A flow from Receives 24 V DC power and discrete signals from field devices. through TWDLMDA40DTK to Switches transistor-source outputs for downstream control loads..

System placement inferred from the cited evidence: Sits between discrete field devices and transistor outputs in the Twido control station.

View Mermaid source
flowchart LR
  upstream["Receives 24 V DC power and discrete signals from field devices."] -->|documented path| item["TWDLMDA40DTK"]
  item -->|documented path| downstream["Switches transistor-source outputs for downstream control loads."]
View diagram labels
Nodes
Receives 24 V DC power and discrete signals from field devices.; Schneider Electric TWDLMDA40DTK Twido modular PLC controller; Switches transistor-source outputs for downstream control loads.
Edges
Documented upstream path; Documented downstream path

Next action

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