Honeywell 51403519-160 (K4LCN-16) LCN Memory Processor Module
June 01, 2026

Honeywell 51403519-160 (K4LCN-16) LCN Memory Processor Module

Product Overview The 51403519-160 (K4LCN-16) is a high-performance LCN memory processor module for Honeywell TDC3000 and TPS DCS systems. It serves as the core memory management and processing unit for the LCN network, handling real-time data storage, high-speed communication, and system-wide data coordination between LCN nodes.

Description

Model Number Explanation

51403519-160

5140: Honeywell DCS Core Hardware Series

35: LCN Memory Processor Subseries

19: Enhanced Memory & CPU Module (K4LCN-16)

160: High-density memory revision, LCN redundant interface

Technical Specifications

Function: LCN memory management, real-time data processing, network communication control, system diagnostics

Processor: 32-bit industrial CPU, 20 MHz processing speed

Memory: 1 MB RAM, 1 MB Flash ROM (firmware/configuration/data logging)

Communication: LCN (5 Mbps), redundant A/B ports; supports up to 64 LCN nodes

Power: 24 VDC, ≤ 3 W (typical)

Dimensions (mm): 365 × 365 × 20 (standard LCN card size)

Weight: Approx. 0.82 kg

Operating Temperature: -40°C ~ +70°C

Compatibility: TDC3000 R500–R610, TPS R100–R120 (LCN architecture)

Interfaces & Configuration

Backplane: LCN chassis dedicated slot, hot-swappable

Front Panel LEDs: PWR, RUN, LCN A/B, FAULT, MEM STATUS

Configuration: TPS/TDC3000 System Software; LCN node addressing, memory partitioning, redundancy setup

Key Features

High-Density Memory Management: 1 MB RAM/Flash for real-time data storage and firmware retention

Redundant LCN Communication: Dual A/B ports for fault-tolerant, non-stop network operation

Real-Time Data Processing: Optimized for LCN network data routing and system coordination

Self-Diagnostics & Fault Reporting: Real-time monitoring of CPU, memory, and communication faults

Rugged Industrial Design: withstands harsh environments for reliable long-term operation

Applications

Systems: Honeywell TDC3000, TPS (LCN-based DCS)

Typical Setup: LCN chassis + 51403519-160 + LCNP4E + Operator Stations + History Modules

Industries: Oil & gas, petrochemical, power generation, metallurgy, pharmaceuticals

Use Case: Plant-wide process control, real-time data logging, LCN network coordination

Compatibility & Replacement

Related Modules: LCN cables, LCN chassis, LCNP4E (51403393-100), HPM controllers, operator stations

Replacement Model:

51403519-160: Standard K4LCN-16 high-density memory version

51403519-100: Low-density memory variant (512 KB RAM/Flash)


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