Allen-Bradley DL20 Dataliner 2706-B23J31

Allen-Bradley DL20 Dataliner 2706-B23J31: documented system role and evidence boundary; verify the individual unit before service, replacement or commissioning.

System role and interfaces

Rebuilt from individual evidence

Unknown: evidence boundary

Manufacturer documentation identifies 2706-B23J31 as an Allen-Bradley DL20 Dataliner two-line message display with 31K memory.

Displays factory messages received through the DL20 Dataliner communication path for operator and production-floor awareness.

At system level, 2706-B23J31 sits between a controller or configured message source and the operator-facing factory display. This sentence is an inference from the cited facts.

Unknown: the individual unit condition, firmware, project configuration, installation compatibility, current stock, price, warranty and service outcome.

Exact reference: 2706-B23J31
Category: HMI / Display
Evidence checked: 2026-09-11

System role

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

Function: Displays factory messages received through the DL20 Dataliner communication path for operator and production-floor awareness.
System position: Sits between a controller or configured message source and the operator-facing factory display.
Upstream / inputs: Receives configured message data through the documented serial or controller interface.
Downstream / outputs: Displays the selected message to personnel on the factory floor.
Limitations: Unknown: the individual unit condition, firmware, project configuration, installation compatibility, current stock, price, warranty and service outcome.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Manufacturer documentation identifies 2706-B23J31 as an Allen-Bradley DL20 Dataliner two-line message display with 31K memory.
Confidence: high
- literature.rockwellautomation.com — retrieved 2026-09-11; high confidence
- www.dosupply.com — retrieved 2026-09-11; medium confidence
Displays factory messages received through the DL20 Dataliner communication path for operator and production-floor awareness.
Confidence: high
- literature.rockwellautomation.com — retrieved 2026-09-11; high confidence
- www.dosupply.com — retrieved 2026-09-11; medium confidence

Inferences

At system level, 2706-B23J31 sits between a controller or configured message source and the operator-facing factory display.
Confidence: high
Rationale: The cited identity and documented function establish the component boundary; the system position is stated as an inference rather than as a wiring instruction.
- literature.rockwellautomation.com — retrieved 2026-09-11; high confidence
- www.dosupply.com — retrieved 2026-09-11; medium confidence

Unknowns

Unknown: the individual unit condition, firmware, project configuration, installation compatibility, current stock, price, warranty and service outcome.
Confidence: low
Missing evidence: No unit-level inspection, project file, or current commercial record was captured in this individual lookup.

System position diagram

Flow from an upstream controller or network through 2706-B23J31 to the connected system. — Evidence-supported system position for 2706-B23J31; this is a conceptual role diagram, not wiring or safety instruction.

View Mermaid source

flowchart LR
  upstream["Upstream controller or network"] -->|configured data| unit["2706-B23J31 DL20 Dataliner"]
  unit -->|operator or process interface| downstream["Connected system"]

View diagram labels

Nodes: Upstream controller or network; 2706-B23J31 DL20 Dataliner; Connected system
Edges: Configured data; Operator or process interface

Next action

Use the documented DL20 Dataliner role as a starting point, then verify the exact unit, installation and configured interfaces before service or replacement.

Check the nameplate, project configuration and connected interfaces against the cited DL20 Dataliner documentation before making a technical decision.

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