Product Introduction

K2LCN-8 51401551-801 is a high-performance LCN processor module developed by Honeywell for distributed control system (DCS) environments. Primarily deployed within the Local Control Network (LCN) architecture, particularly in the TDC 3000 control platform, this module manages high-speed data processing, communication, and system coordination.
Equipped with an industrial-grade processor and 8 megabytes of onboard memory, this module enables reliable real-time communication between controllers, operator workstations, and field devices. Its rugged design ensures continuous, stable operation in demanding industrial environments such as power plants, refineries, and chemical plants.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | K2LCN-8 |
| Part Number | 51401551-801 |
| Manufacturer | Honeywell |
| Product Type | LCN Processor / Control Board |
| Processor | Motorola 68020 |
| Memory | 8 Megawords |
| Operating Voltage | 5 V DC |
| Power Consumption | Approx. 10–15 W |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | −40°C to +85°C |
| Dimensions | Approx. 19.1 × 18.8 × 6.5 cm |
| Weight | About 1.2 kg |
Typical Applications

K2LCN-8 51401551-801
The K2LCN-8 processor module is widely used in large-scale industrial automation systems requiring reliable real-time control and data communication.
Common application areas include:
Oil and gas production and refining
Power plants
Petrochemical and chemical processing
Paper industry
Heavy industrial automation systems
System Architecture Role
Within the Honeywell Distributed Control Architecture, the K2LCN-8 operates as a node processor on the local control network, performing the following critical tasks:
Coordinating network communications
Processing control data and system diagnostic information
Managing information exchange between controllers and operator interfaces
Supporting system monitoring and fault detection
Product FAQ – K2LCN-8 51401551-801

K2LCN-8 51401551-801
Q1: What are the primary functions of the K2LCN-8 51401551-801?
A: It serves as a local control network processor, managing communication and data processing within Honeywell distributed control systems.
Q2: What processor does this module utilize?
A: The module is built around a Motorola 68020 processor, delivering reliable performance for industrial control applications.
Q3: How much memory does the board contain?
A: It provides 8 megabytes of non-expandable memory to support process control and communication tasks.
Q4: Which control systems utilize this module?
This module is primarily designed for the Honeywell TDC 3000 DCS platform and similar LCN-based automation systems.
Honeywell Products
Honeywell products are widely recognized across global industries for their advanced technology, reliability, and innovation. From industrial control systems to sensing technologies, Honeywell's product portfolio supports critical operations in sectors such as energy, manufacturing, aerospace, transportation, and building management.
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