TBXESP1622 - Schneider Electric TBX discrete output module

Schneider Electric TBX discrete output module with a documented system role and explicit evidence boundaries.

Documented function

Rebuilt from individual evidence

System position

Unknown: Evidence boundary

The Modicon Premium catalog extract lists TBXESP1622 as a 16-channel 24 V transistor-output module with 0.5 A protected outputs.

The captured setup manual documents TBX ESP 1622 output connector wiring and a 24 V preactuator supply.

The module sits in the TBX distributed-I/O path between PLC commands and 24 V field preactuators.

Unknown: The installed PLC, preactuator loads, output protection, Fipio address, and site-specific wiring are not established by the captured sources.

Exact reference: TBXESP1622
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: Switches 24 V field preactuators from PLC output commands.
System position: Sits in the TBX distributed-I/O path between PLC commands and 24 V field preactuators.
Upstream / inputs: Receives output commands from the PLC over the TBX I/O architecture.
Downstream / outputs: Supplies protected 24 V transistor outputs to downstream preactuators.
Limitations: Unknown: The installed PLC, preactuator loads, output protection, Fipio address, and site-specific wiring are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The Modicon Premium catalog extract lists TBXESP1622 as a 16-channel 24 V transistor-output module with 0.5 A protected outputs.
Confidence: high
- www.scribd.com — retrieved 2026-09-12; medium confidence
The captured setup manual documents TBX ESP 1622 output connector wiring and a 24 V preactuator supply.
Confidence: high
- www.mroelectric.com — retrieved 2026-09-12; medium confidence

Inferences

The module sits in the TBX distributed-I/O path between PLC commands and 24 V field preactuators.
Confidence: medium
Rationale: The sources identify a 16-channel protected transistor-output module and its preactuator supply, supporting the stated command-to-field position.
- www.scribd.com — retrieved 2026-09-12; medium confidence
- www.mroelectric.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: The installed PLC, preactuator loads, output protection, Fipio address, and site-specific wiring are not established by the captured sources.
Confidence: low
Missing evidence: The installed PLC, preactuator loads, output protection, Fipio address, and site-specific wiring are not established by the captured sources.

System position diagram

Diagram showing TBXESP1622 between Modicon Premium PLC and 24 V field preactuators. — System position of TBXESP1622 from the captured evidence.

View Mermaid source

flowchart LR
  upstream["Modicon Premium PLC"] --> item["TBXESP1622"]
  item --> downstream["24 V field preactuators"]

View diagram labels

Nodes: Modicon Premium PLC; TBXESP1622; 24 V field preactuators
Edges: Documented upstream connection; Documented downstream function

Next action

Decision: The evidence supports TBXESP1622 as a 16-channel protected 24 V output module with a concrete distributed-I/O role; verify loads and wiring before replacement.

Next action: Match the exact reference, PLC platform, Fipio address, preactuator loads, 24 V supply, and protection against the cited documents.

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