The Honeywell LCNP4E Interface Card (Part Number 51405098-100, Rev HW-H / FW-J) is a high-performance communication module designed for Honeywell Local Control Network (LCN) and Distributed Control Systems (DCS). It ensures deterministic, high-speed communication between controllers, I/O modules, and operator workstations, supporting reliable and efficient system operation in industrial environments.

With Hardware Revision H and Firmware Revision J, the LCNP4E delivers stable signal processing, improved network performance, and long-term compatibility within Honeywell control systems. Its rugged industrial-grade construction makes it ideal for continuous 24/7 operation.

Key Features

• Model: LCNP4E

• Part Number: 51405098-100

• Revision: Hardware H | Firmware J

• High-speed, deterministic LCN/DCS communication

• Reliable and stable network performance

• Rugged industrial design for continuous operation

• Ideal for system upgrades, replacements, or expansion

• Compatible with Honeywell LCN/DCS networks

Applications

• Honeywell Local Control Network / Distributed Control Systems

• Industrial automation in oil & gas, petrochemical, and refining

• Power generation and utility plants

• Heavy manufacturing and process industries

• System maintenance, retrofits, and network expansion

• Replacement for legacy LCNP4E modules

Why This Module Is Important

The LCNP4E 51405098-100 plays a crucial role in maintaining stable and reliable communication within Honeywell control systems. Its HW-H / FW-J revisions ensure full compatibility and long-term operational stability, making it essential for upgrades, replacements, or expanding system capabilities.