Honeywell 51305072-600
Honeywell 51305072-600
Honeywell 51305072-600
Honeywell 51305072-600
Honeywell 51305072-600
Honeywell 51305072-600
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51305072-600

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The 51305072-600 is a Honeywell LCN I/O Board (Dual Node) for TDC 3000/Experion PKS systems, replacing KLCN-CB with an addressable jump pack for LCN node integration .
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Technical specifications for 51305072-600

  • Manufacturer:
    Honeywell
  • Part Number:
    51305072-600
  • Product Family:
    Honeywell DCS
  • Product Type:
    I/O Board
  • Response Time:
    <5 ms typical
  • Power Supply:
    24V DC
  • Material:
    Engineering plastic
  • Status Indicators:
    LED indicators for Run, Communication, and Fault status
  • Weight:
    0.14 kg
  • Estimated shipping dimensions:
    22.3x14x2cm
  • Tariff Code:
    8471609000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Operating Environment Control Functions

Features:

  • Supports two nodes on the Local Control Network (LCN) via coaxial cable, effectively expanding the system’s capacity
  • Engineered specifically to replace older KLCN boards and be compatible with TDC 3000 and Experion PKS systems
  • Features robust protection including short-circuit tolerance, surge absorption, and electrical isolation to ensure high durability in the field
The 51305072-600 is distinguished by its role in the LCN (Local Control Network) as a "Dual Node" interface . In a Honeywell DCS, the LCN is the high-speed data highway that connects various components (consoles, historians, controllers). To add more I/O points, you must add a node, and the 51305072-600 does exactly that. It allows two distinct node addresses to be added to the network. However, user configuration is required; the module features a physical "jumper pack" that technicians must set to define the specific node number.

For plants running legacy Honeywell TDC 3000 systems, the 51305072-600 is a lifeline. It is designed as a direct replacement for the discontinued KLCN-CB board, allowing engineers to maintain operational I/O racks without a costly full-system DCS upgrade . It also acts as the CE-compliant version of the older board (CLCN A/B) for users in regulated markets.

The 51304072-600 is built to survive harsh industrial environments, which is why it is often preferred for critical infrastructure. It adheres to strict industrial EMC (Electromagnetic Compatibility) standards, meaning it resists interference from heavy motors, VFDs, and high-voltage switchgear found in refineries and steel mills . The module features a high-density, multi-layer PCB housed in a dust-proof chassis, suitable for IP20-rated cabinets . It also maintains signal integrity over long distances via its coax interfac.

The 51305072-600 Honeywell I/O Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

Honeywell 51305072-600 I/O Board Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Honeywell 51305072-600 I/O Board Specs

General

  • Manufacturer Honeywell
  • Model 51305072-600
  • Condition New Original ready stock
  • Product Family 51305071-600,51304754-150
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
  • Oil & Gas: Monitoring distillation towers and cracking units in oil refineries, ensuring the main control station can acquire real-time data from thousands of pressure and temperature points.
  • Large Power Plants: Ensuring precise information exchange between turbine and boiler control units in coal-fired or nuclear power plants.
  • Chemicals & Pharmaceuticals: Providing a highly reliable data backbone for batch control, ensuring traceability of the production process.
  • System Expansion: Increasing I/O capacity in dual-node racks and supporting LCN network node address configuration.
  • Operating Temperature: Typically operates stably between -20°C and +55°C.
  • Storage Temperature: Withstands environments ranging from -40°C to +85°C.
  • Electromagnetic Compatibility: Although this model (-600) is a non-CE version, it still features multi-stage filtering and electromagnetic shielding technology to ensure undistorted signal in noisy industrial environments.
  • Redundant Communication Control: Dedicated to communication for Cable B. It, along with the module responsible for Cable A (such as 51305072-500 or -200), forms a redundant network. When one cable fails, the system can seamlessly switch to prevent control interruption.
  • Node Diagnostic Indication: Onboard LED indicators provide real-time diagnostics of power, communication status, and link health, helping maintenance personnel quickly isolate faults within 10 minutes.
  • Hot-Swappable: Supports online replacement, allowing maintenance without stopping the entire system.
  • Address characterization: The module is equipped with an address pack, which must be configured according to its specific node location in the LCN network to ensure the accuracy of the control network path.
Description
The 51305072-600 is a critical hardware component for Honeywell’s legacy control networks. As a Local Control Network (LCN) I/O board, it facilitates communication between the controller and field devices . 

When integrating the 51305072-600 into a system, its unique address pack must be configured for the specific node it occupies on the LCN. Network addresses must start at "1" and proceed in numerical order, with gaps reserved for future expansion . 

Maintenance of the 51305072-600 involves ensuring connections are secure and free from corrosion. As an active board, it features LED status indicators to assist with runtime diagnostics and troubleshooting . Because this is a discontinued legacy item, sourcing the 51305072-600 often requires the aftermarket. 
Alternative Names
51305071-600 K2LCN K4LCN-4 51304754-150
Technical notes
The 51305072-600, also known as the CLCN A/B board, is requiring careful handling of its edge connector during installation to avoid bending pins.Unlike standard computer network cards, this module relies on passive cooling. It is crucial to ensure the rack has proper airflow to maintain the board’s operational reliability over time.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How do I set the node address for the 51305072-600?
The 51305072-600 uses a physical jumper pack located on the board to set its address. You must match this address to the specific node location on the LCN. Addresses must be sequential and gaps should be left for future expansion .
How do I know if my 51305072-600 is working correctly?
The 51305072-600 features onboard status LEDs that indicate power, communication activity, and fault conditions. Green lights typically indicate normal operation, while a red or flashing light suggests a configuration error or hardware failure .
Is the 51305072-600 protected against short circuits?
Yes. The 51305072-600 is designed with industrial-grade protection, including self-recovery short circuit protection and surge absorbing circuits. This helps ensure the module survives harsh

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