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SKU: 51305072-300

Honeywell 51305072-300 CLCN-B I/O Module

The Honeywell 51305072-300 CLCN-B is an I/O card designed for TDC 3000 systems. This module provides reliable signal processing for legacy industrial automation environments.

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Product Overview

The Honeywell 51305072-300, designated as the CLCN-B I/O card, serves as a specialized hardware component within the legacy TDC 3000 Distributed Control System (DCS) architecture. Engineers utilize this module to facilitate critical input and output signal processing, thereby maintaining consistent data integrity across industrial control loops. Although Honeywell officially discontinued this unit on December 31, 2018, it remains a vital replacement part for maintaining legacy installations where uptime and system stability require original-specification hardware.

Technical Specifications

  • Model Number: 51305072-300
  • Component Type: CLCN-B I/O Card
  • Manufacturer: Honeywell
  • System Platform: TDC 3000
  • Physical Dimensions: 3 cm x 13.5 cm x 23.7 cm
  • Unit Weight: 0.16 kg
  • HS Code: 8537101190
  • Origin: USA
  • Availability: In Stock

Functional Characteristics and Application

The CLCN-B module manages signal conversion and processing tasks fundamental to the TDC 3000 environment. Because the module interfaces directly with field instrumentation, it translates physical process variables into actionable digital data for the controller. Furthermore, the compact form factor allows for efficient rack mounting within existing control cabinets, which minimizes space requirements during hardware retrofits.

Operators rely on this module to preserve the lifecycle of legacy DCS platforms. Furthermore, the robust circuitry supports continuous operation in demanding industrial environments, effectively reducing the probability of signal degradation. Consequently, maintenance teams frequently select the 51305072-300 to restore system functionality without necessitating a full-scale controller replacement. The module integrates seamlessly into established I/O racks, ensuring that communication protocols remain consistent with the original system design.

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    Q: What is the primary function of the 4 megawords memory allocation on the board?A: The onboard 4 megawords memory provides local storage for execution code, communication buffer queues, and network state management required for real-time node routing within the Local Control Network (LCN).Q: Can the K2LCN-4 card be inserted while the node chassis is powered?A: Insertion or removal must follow Honeywell TDC 3000 maintenance procedures. Power down the card slot or rack segment prior to removal to prevent transient current surges on the backplane bus.

    Field Installation Guidelines

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    2. Align the board edges strictly with the card cage guide rails to prevent mechanical pin bending on the rear connector matrix.
    3. Apply firm, even pressure on the card edge ejector levers until the board seats fully into the backplane socket.
    4. Fasten all retention screws to secure chassis grounding continuity and mechanical stability under vibration.
    5. Verify shield ground terminations on external communication cables to maintain proper channel-to-channel isolation and noise immunity.
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