Siemens 6ES7144-1FB31-0XB0 documented automation component

6ES7144-1FB31-0XB0 is documented by the cited source as EM144 two-channel analog input expansion module with a defined role in an industrial automation system.

System function

Rebuilt from individual evidence

Evidence and limits

The cited technical source identifies 6ES7144-1FB31-0XB0 as EM144 two-channel analog input expansion module.

The same exact-reference source documents this function and interface detail: Measures two voltage signals through the documented EM144 analog-input expansion module.

The system position is an inference from the documented interface and function; installation-specific compatibility remains unknown.

Exact reference: 6ES7144-1FB31-0XB0
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: Measures two voltage signals through the documented EM144 analog-input expansion module.
System position: Sits within the documented field station between voltage-signal sources and the controller's input data.
Upstream / inputs: Receives plus-or-minus 10 V measurement signals through its M12 connectors.
Downstream / outputs: Provides converted analog values and channel diagnostics to the documented controller.
Limitations: Unknown: Installation-specific compatibility, wiring, firmware, project configuration, condition, and commercial status are not established by this lookup.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The cited technical source identifies 6ES7144-1FB31-0XB0 as EM144 two-channel analog input expansion module.
Confidence: medium
- adegis.com — retrieved 2026-09-12; medium confidence
The same exact-reference source documents this function and interface detail: Measures two voltage signals through the ET 200X EM144 analog-input expansion module.
Confidence: medium
- adegis.com — retrieved 2026-09-12; medium confidence

Inferences

The module's system position is inferred from its documented interface and function: Sits within the ET 200X field station between voltage-signal sources and the controller's input data.
Confidence: medium
Rationale: The cited exact-reference identity and function evidence supports this system-path description; the placement is explicitly an inference.
- adegis.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: Installation-specific compatibility, wiring, firmware, and project configuration are not established by this lookup.
Confidence: low
Missing evidence: No installation-specific controller, firmware, wiring, or project configuration was captured.
Unknown: Unit condition, stock, price, lead time, repair status, warranty, and local service coverage are not established by this lookup.
Confidence: low
Missing evidence: No current unit-specific commercial or condition evidence was captured.

System position diagram

A left-to-right diagram shows the documented upstream path feeding 6ES7144-1FB31-0XB0, which connects to the documented downstream path. — System role inferred from the cited evidence for 6ES7144-1FB31-0XB0; installation-specific wiring is not asserted.

View Mermaid source

flowchart LR\n upstream["Documented upstream path"] --> module["6ES7144-1FB31-0XB0"]\n module --> downstream["Documented downstream path"]

View diagram labels

Nodes: Documented upstream path; 6ES7144-1FB31-0XB0 component; Documented downstream path
Edges: Documented input or source path; Documented output or service path

Next action

The captured evidence supports a concrete system role for 6ES7144-1FB31-0XB0; installation-specific compatibility remains an explicit unknown.

Verify the complete 6ES7144-1FB31-0XB0 marking and host-system documentation before replacement or commissioning.

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