Schneider Electric TWDLCAA24DRF Twido compact PLC controller

Schneider Electric identifies TWDLCAA24DRF as a Twido compact base controller with 100 to 240 VAC supply, 14 inputs, and 10 relay outputs. The product record also lists one additional serial-port slot, support for up to four expansion I/O modules, and two analog potentiometers.

Documented system function and position

Rebuilt from individual evidence

Schneider Electric identifies TWDLCAA24DRF as a Twido compact base controller with 100 to 240 VAC supply, 14 inputs, and 10 relay outputs.

The product record also lists one additional serial-port slot, support for up to four expansion I/O modules, and two analog potentiometers.

Sits between discrete field signals and relay-controlled machine actuators in a Twido control station.

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

Exact reference: TWDLCAA24DRF
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 machine signals as the compact Twido PLC base controller.
System position: Sits between discrete field signals and relay-controlled machine actuators in a Twido control station.
Upstream / inputs: Receives 24 V DC discrete field inputs and the documented AC station supply.
Downstream / outputs: Switches relay outputs toward downstream machine actuators.
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 TWDLCAA24DRF as a Twido compact base controller with 100 to 240 VAC supply, 14 inputs, and 10 relay outputs.
Confidence: high
- www.se.com — retrieved 2026-09-12; high confidence
The product record also lists one additional serial-port slot, support for up to four expansion I/O modules, and two analog potentiometers.
Confidence: high
- www.se.com — retrieved 2026-09-12; high confidence
- download.schneider-electric.com — retrieved 2026-09-12; high confidence
Controls discrete machine signals as the compact Twido PLC base controller.
Confidence: high
- www.se.com — retrieved 2026-09-12; high confidence

Inferences

Inferred system position: Sits between discrete field signals and relay-controlled machine actuators in a 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 discrete field inputs and the documented AC station supply. through TWDLCAA24DRF to Switches relay outputs toward downstream machine actuators.. — System placement inferred from the cited evidence: Sits between discrete field signals and relay-controlled machine actuators in a Twido control station.

View Mermaid source

flowchart LR
  upstream["Receives 24 V DC discrete field inputs and the documented AC station supply."] -->|documented path| item["TWDLCAA24DRF"]
  item -->|documented path| downstream["Switches relay outputs toward downstream machine actuators."]

View diagram labels

Nodes: Receives 24 V DC discrete field inputs and the documented AC station supply.; Schneider Electric TWDLCAA24DRF Twido compact PLC controller; Switches relay outputs toward downstream machine actuators.
Edges: Documented upstream path; Documented downstream path

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