Model Explanation

51400978-100: Honeywell part number (no delimiter 51400978100)

51400978 = HMPU High Performance Multi-function Processor Board Series

100 = Standard version, Rev C firmware, industrial-grade temperature

Component Type: HMPU PWA (High-Performance Multi-function Processor Printed Wiring Assembly)

Compatible Devices: TDC 3000 LCN cabinet, Application Processor (AP), TPS System Control Node, Experion PKS compatible cabinet Technical Specifications

Processor: Specialized 32-bit RISC processor, with a main frequency of 40 MHz

Memory: 4 MB RAM (for programs and data cache), 1 MB EPROM (firmware)

Computing power: Peak 8 MIPS, supports 100+ loop PID control

Communication protocols: LCN (10 Mbps), UCN (5 Mbps), dedicated control bus

Power supply: 5 VDC (backplane, ±5%), power consumption ≤ 22 W

Operating temperature: 0°C ~ +65°C (environment of the cabinet)

Storage temperature: -40°C ~ +85°C

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

Size: Standard 19-inch card (3U)

Weight: Approximately 1.2 kg

Certifications: CE, UL, CSA, FM

Interfaces and Configuration

Backplane interface: LCN cabinet gold fingers, dedicated high-speed control bus

Network interfaces: LCN coaxial interface, UCN twisted pair interface (optional redundancy)

Status indicators: PWR, RUN, LCN ACT, UCN ACT, FAULT, DIAG LED

Redundancy: Supports 1:1 hot redundancy configuration (dual HMPU seamless switching)

Compatibility: Compatible with all versions of TDC 3000 LCN network, compatible with TPS, Experion PKS systems Core function

Advanced process control operations: Execute complex PID, cascade, feedforward, fuzzy control algorithms, and support batch control, sequential control and advanced process control (APC) strategies.

LCN network core management: As the LCN master node, it coordinates network communication, data routing and node scheduling to ensure system real-time performance and stability.

System resource coordination: Manage data interaction among I/O modules, operation stations and other controllers to achieve system-level fault diagnosis and resource allocation.

Data caching and processing: 4 MB high-speed cache, real-time processing process data, alarms, trends and historical data, and supports data compression and archiving.

Redundancy switching and fault tolerance: With redundant configuration, faults are automatically switched (switching time ≤ 50 ms) to ensure control continuity; supports online diagnosis and firmware upgrade. Applicable scenarios

System: Honeywell TDC 3000, TPS, Experion PKS (LCN compatible)

Equipment: LCN cabinet, application processor (AP), TDC 3000 process control system, upgrade and replacement of the old system

Industry: Petrochemicals, thermal power, nuclear power, metallurgy, cement, pharmaceuticals, papermaking

Application: Large-scale process control, execution of complex control strategies, redundant configuration of the main controller, performance upgrade of the old system, replacement and maintenance of faulty cards