Model Explanation

51402615-400

5140: Honeywell DCS Core Hardware Series

26: LCN Network Processor Sub-series

15: K2LCN Processor Card

400: Hardware Version (High-End Model, Rev F Firmware)

Alias: K2LCN-4, LCNPROC-40 Technical Specifications

Function positioning: Main processor of LCN network, system scheduling core

Processor: Special 32-bit communication processor, Rev F firmware

Memory: 4 megabytes (4 MW), cache

Network protocol: LCN (token passing, 1 Mbps)

Bus architecture: Redundant dual buses (A/B network), seamless switching

Power supply: 5 VDC backplane power supply, approximately 4.5 W

Size (mm): 220 × 120 × 30 (standard card size)

Weight: Approximately 0.52 kg

Operating temperature: -20°C ~ +70°C (wide temperature ruggedized)

Adapter cage compatibility: LCN chassis (51402455-100 DNCF compatible)

Compatible systems: TDC3000 R500~R610, TPS R100~R120

Redundancy capability: Supports 1:1 redundancy configuration, fault switching < 80 ms

Interface and configuration

Network interface: LCN redundant bus interface (special terminals)

Backplane interface: LCN chassis-specific slot, supports hot plugging

Panel indicators: PWR, RUN, LCN-A, LCN-B, FAULT LED

Configuration method: TPS system software configuration, automatically identifies network nodes and parameters

Core functions

LCN network management: Token scheduling, node addressing, bandwidth allocation, conflict detection

High-speed data processing: Data forwarding and calculation for operation stations, controllers, and I/O modules

System redundancy control: Dual-machine hot standby, automatic fault switching, data synchronization

Alarm and diagnosis: Network faults, card status, real-time monitoring and alarming of communication quality

Protocol conversion: Protocol parsing and conversion between LCN and UCN, HPM, etc. subsystems Application scenario

Adaptation system: Honeywell TDC3000, TPS (LCN + UCN architecture)

Typical configuration: LCN chassis + 51402615-400 (redundant) + UCN network + HPM controller

Industry: Petrochemicals, thermal power, metallurgy, papermaking, pharmaceuticals, etc. process industries

Function: As the core of the LCN network, it realizes data communication between the system monitoring layer and the control layer.