Product Overview
The Honeywell 51305072-200 is a CE-compliant Local Control Network (LCN) I/O board, specifically
designated as the CLCN-A board, engineered exclusively for integration with Honeywell’s TDC
3000X Enhanced Programmable Logic Controller Gateway (EPLCG) systems. As a critical interface
component, it serves as the physical link between the EPLCG module and the LCN “A” coaxial cable,
enabling reliable data transmission between the EPLCG and the broader TDC 3000 distributed control
system (DCS).
Designed to meet European Union (EU) EMC (Electromagnetic Compatibility) and Health and Safety
Directives, this board bears the “CE Mark”—a mandatory requirement for industrial equipment
shipped to EU countries post-January 1, 1996. It replaces legacy non-CE LCN-A interface boards (e.g.,
KLCN-CA) while maintaining backward compatibility with TDC 3000X infrastructure, making it ideal
for upgrading existing systems to meet EU regulatory standards.
The 51305072-200 is primarily deployed in EPLCG configurations (both nonredundant and redundant)
within Dual Node Modules, supporting critical industrial automation tasks such as PLC-to-LCN data
bridging in oil & gas, power generation, and manufacturing environments. Its robust design ensures
stable operation in controlled industrial settings, with a focus on electromagnetic interference (EMI)
reduction and cable shield grounding to preserve signal integrity.
Key Features
CE Compliance & Regulatory Adherence
Meets EU EMC Directive (89/336/EEC) and Health and Safety Directive (73/23/EEC), certified with the “CE Mark” for legal deployment in EU member states.
Complies with global industrial standards, including ANSI/ISA-12.12.01-2015 (intrinsic safety for industrial control systems) and EN 60079-0/11/15 (standards for explosive atmospheres), ensuring compatibility with hazardous location requirements for Class I, Division 2 and Zone 2 environments.
LCN “A” Cable Interface & Grounding
Dedicated to LCN “A” coaxial cable connections, featuring shielded connectors that establish a contiguous ground path from the module chassis to the cable shield. This design minimizes EMI emissions and susceptibility, critical for maintaining signal clarity in noisy industrial environments.
Uses screw-mounted faceplate installation to the EPLCG Dual Node Module’s rear I/O cage, ensuring secure mechanical mounting and reliable electrical grounding—an improvement over legacy clip-mounted boards.
System Compatibility & Integration
Exclusively compatible with Honeywell TDC 3000X EPLCG systems, including both nonredundant (MP-NEPLC3, MP-NEPLC5) and redundant (MP-REPLC3, MP-REPLC4, MP-REPLC7, MP-REPLC8) EPLCG configurations.
Works seamlessly with EPLCG core components, including the EPLCI (Enhanced PLC Interface) board (51400997-200), EPLCI I/O board (51304812-200), and K2LCN processor boards (51401551-x00/51402615-x00), supporting up to 16 PLC connections per EPLCG module.
Serves as a drop-in replacement for the legacy KLCN-CA board (51304542-100), requiring no modifications to existing EPLCG chassis or wiring (beyond node address reconfiguration).
Node Address Configurability
Equipped with a jumper-based address pack to set the LCN node address, ensuring the board aligns with the EPLCG module’s assigned node on the LCN. Node addresses follow TDC 3000X conventions (starting at “1,” incrementing numerically), with parity jumpers to maintain data integrity during transmission.
Critical note: When paired with a K2LCN processor board, the node address must be configured exclusively on the 51305072-200 (not the K2LCN) to avoid address conflicts, as the two boards’ address settings are logically ORed.
Industrial-Grade Durability
Constructed with a metal faceplate and ruggedized PCB (Printed Circuit Board) to withstand vibration (1g maximum operating vibration) and temperature fluctuations in controlled industrial environments (0°C to 50°C operating temperature range).
Supports shielded coaxial cables to further enhance EMI resistance, with connector designs that prevent accidental disconnection during module operation.
Technical Specifications
The Honeywell 51305072-200 is manufactured by Honeywell Inc.’s Industrial Automation and Control Division, classified as a CE-compliant LCN “A” I/O board (CLCN-A) specifically engineered for Honeywell TDC 3000X Enhanced Programmable Logic Controller Gateway (EPLCG) systems. It is designed for installation in TDC 3000X Dual Node Modules, compatible with both nonredundant (MP-NEPLC3, MP-NEPLC5) and redundant (MP-REPLC3, MP-REPLC4, MP-REPLC7, MP-REPLC8) EPLCG configurations.
Functionally, it serves as the dedicated interface for LCN “A” coaxial cables, establishing the signal path between the EPLCG module and the LCN. Power for the board is derived from the host Dual Node Module’s power supply, which operates at a nominal 24 V DC or 28 V DC—consistent with TDC 3000X system power requirements.
In terms of environmental resilience, the board operates within a temperature range of 0°C to 50°C (32°F to 122°F) and can be stored in conditions ranging from -35°C to +70°C (-31°F to +158°F). It supports a relative humidity range of 10% to 80% (non-condensing), with a maximum wet bulb temperature of 20°C to 30°C. For mechanical stability, it withstands 1g of vibration during operation and 3.0g of shock for 10 milliseconds when enclosed in its original shipping packaging.
Regulatory certifications include the CE Mark (validating compliance with EU EMC and Health and Safety Directives), ANSI/ISA-12.12.01-2015 (for intrinsic safety in industrial control systems), EN 60079-0/11/15 (for explosive atmosphere compatibility), and UL certifications for Class I, Division 2 (Groups A–D) and Class I, Zone 2 (Group IIC) hazardous locations.
Mechanically, the board conforms to TDC 3000X Dual Node Module I/O slot specifications, designed for 19-inch rack-mount enclosures. It requires screw-mounted installation to the module’s rear I/O cage, paired with the dedicated CLCN-A faceplate (part number 51304981-100) for secure mounting and grounding.
Node address configuration is achieved via a jumper-based address pack, supporting LCN node addresses 1–64. A parity jumper is mandatory to maintain odd parity, as required by TDC 3000X LCN communication protocols. Signal integrity is enhanced by shielded LCN “A” cable connectors and a contiguous ground path between the board’s faceplate and the module chassis, which reduces EMI emissions and susceptibility.
The board is a direct replacement for the legacy KLCN-CA board (part number 51304542-100) in TDC 3000X EPLCG systems, requiring no chassis or wiring modifications beyond address reconfiguration. Key associated components include the EPLCI board (51400997-200), EPLCI I/O board (51304812-200), K2LCN processor board (51401551-x00 or 51402615-x00), and CLCN-A faceplate (51304981-100).
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