GLC150-BG41-FLEX-24V - Pro-face LT Type B Flex Network operator interface

The Pro-face LT Type B unit provides a Flex Network interface for an operator-facing control system. Evidence and installation boundaries are recorded for maintenance review.

Documented product role

Rebuilt from individual evidence

System placement

Unknown: Evidence boundary for the captured source set.

Pro-face identifies GLC150-BG41-FLEX-24V as the LT Type B model with a Flex Network interface.

The LT Type B unit controls remote I/O through its Flex Network interface.

Flex Network I/O units connect to the LT through the two-channel Flex Network interface.

The LT can send communication data to connected Flex Network I/O units, with up to 63 units across both channels.

The unit sits between an operator interface and the remote I/O network in the LT control system.

Operator logic reaches remote I/O units through the LT Flex Network interface.

Unknown: The installed screen project, connected I/O topology, firmware, and site-specific compatibility are not established by the captured sources.

Exact reference: GLC150-BG41-FLEX-24V
Category: HMI / Display
Evidence checked: 2026-09-12

System role

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

Function: Controls the documented remote-I/O communication function.
System position: Sits between the operator interface logic and connected remote I/O units.
Upstream / inputs: Receives configured communication data from the LT control logic and connected network.
Downstream / outputs: Sends communication data to connected Flex Network I/O units.
Limitations: Unknown: The installed screen project, connected I/O topology, firmware, and site-specific compatibility are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Pro-face identifies GLC150-BG41-FLEX-24V as the LT Type B model with a Flex Network interface.
Confidence: high
- www.proface.com — retrieved 2026-09-12; high confidence
The LT Type B unit controls remote I/O through its Flex Network interface.
Confidence: high
- www.proface.com — retrieved 2026-09-12; high confidence
Flex Network I/O units connect to the LT through the two-channel Flex Network interface.
Confidence: high
- www.proface.com — retrieved 2026-09-12; high confidence
The LT can send communication data to connected Flex Network I/O units, with up to 63 units across both channels.
Confidence: high
- www.proface.com — retrieved 2026-09-12; high confidence

Inferences

The unit sits between an operator interface and the remote I/O network in the LT control system.
Confidence: medium
Rationale: The manufacturer manual identifies this exact model as LT Type B and documents the Flex Network connection to remote I/O.
- www.proface.com — retrieved 2026-09-12; high confidence
Operator logic reaches remote I/O units through the LT Flex Network interface.
Confidence: medium
Rationale: The manual documents both the two-channel interface and communication to remote I/O units, supporting this system-level signal path.
- www.proface.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: The installed screen project, connected I/O topology, firmware, and site-specific compatibility are not established by the captured sources.
Confidence: low
Missing evidence: The installed screen project, connected I/O topology, firmware, and site-specific compatibility are not established by the captured sources.

System position diagram

Diagram showing GLC150-BG41-FLEX-24V between LT control logic and Flex Network I/O units. — System position of GLC150-BG41-FLEX-24V from the captured evidence.

View Mermaid source

flowchart LR
  upstream[LT control logic] --> unit[GLC150-BG41-FLEX-24V]
  unit --> downstream[Flex Network I/O units]

View diagram labels

Nodes: LT control logic; GLC150-BG41-FLEX-24V; Flex Network I/O units
Edges: Upstream data enters the product; The product provides the documented downstream function

Next action

Decision: The exact model and Flex Network system role are documented; verify the installed project and I/O topology before service.

Next action: compare the installed LT project and connected I/O topology with the documented Flex Network arrangement before sourcing.

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