Model Explanation

51401288-200: Honeywell part number (written as 51401288200)

51401288 = HPK2 processor card series

200 = HPK2-3 version, 3MW memory, hardware Rev B, upgraded firmware

Component Type: LCN Processor Card (HPK2-3)

Compatible System: TDC 3000 (LCN network node)

Replacement Relationship: Has been replaced by K4LCN-4/8/16 series, but legacy systems are still widely used Technical Specifications

Processor: Motorola 68020, 32-bit, with a main frequency of 20 MHz

Memory: 3MW (approximately 3MB) RAM (programs / data, 50% improvement over HPK2-2)

Cache: Built-in 256KB high-speed cache

System bus: LCN dedicated bus, 5Mbps

Power supply: 5VDC/±12VDC (backplane), power consumption ≤ 32W

Operating temperature: 0°C ~ +60°C

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Size: Standard 19-inch card (6U)

Weight: Approximately 1.5kg

Certifications: CE, UL, CSA, FM

Interfaces and Configuration

Backplane interface: Gold fingers, connecting LCN backplane

Debug interface: RS-232 serial port (local maintenance and firmware upgrade)

Configuration method: Built-in DIP switches (LCN address, termination resistor, startup mode) + system software configuration

Redundancy: Supports 1:1 hot redundancy, automatic fault switching

Compatibility: Full version of TDC 3000 LCN, can be used with EMEM/QMEM expansion memory cards Core function

LCN Node Control: Executes the real-time control logic, data processing and interlocking management for LCN network nodes.

Network Communication Management: Responsible for high-speed data interaction, communication scheduling and fault diagnosis among nodes within the LCN network.

System Resource Management: Memory allocation, task scheduling, I/O data preprocessing, ensuring efficient operation of nodes.

Data Storage and Forwarding: Caches historical data, alarms and events from LCN nodes, for display and reporting by the operation station.

Firmware Upgrade and Maintenance: Supports local/remote firmware upgrade, hardware diagnosis and fault location. Applicable scenarios

System: Honeywell TDC 3000, TPS (LCN network node)

Equipment: LCN node cabinet, EMEM/QMEM expansion memory card, LCN network interface card

Industry: Petrochemicals, thermal power, metallurgy, oil and gas, pharmaceuticals, papermaking

Application: LCN network node control, process data processing, network communication management, system maintenance