Model Explanation

51400901-100: Honeywell part number (no delimiter 51400901100)

51400901 = EMPU Enhanced Microprocessor Board Series

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

Component Type: EMPU PWA (Enhanced Microprocessor Printed Wiring Assembly)

Compatible Devices: TDC 3000 Application Processor (AP), Universal Operator Station (GUS/US), LCN Controller Cabinet Technical Specifications

Processor: Special 32-bit RISC processor, with a main frequency of 25 MHz

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

Cache: 256 KB high-speed cache, supporting fast data reading and writing

Protocol: LCN network protocol (10 Mbps), dedicated control bus protocol

Power supply: 5 VDC (backplane, ±5%), power consumption ≤ 20 W

Operating temperature: 0°C ~ +60°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 0.8 kg

Certifications: CE, UL, CSA

Interfaces and Configuration

Backplane interface: LCN cabinet gold fingers, supporting hot swapping

Communication interface: LCN network interface, local control bus interface

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

Redundancy: Supports 1:1 redundancy configuration, switching time < 30 ms

Compatibility: Compatible with all versions of TDC 3000 LCN network, compatible with AP, GUS, US and other controller devices Core function

Process control operation: Executes complex control algorithms such as PID, cascade, feedforward, and sequential control, and supports custom control strategy programming.

LCN network communication: As an LCN network node, it conducts high-speed data interaction with other cards (I/O, SIO, operation station), ensuring the real-time performance of the system.

System scheduling and management: Responsible for task priority scheduling, memory management, fault diagnosis, and system clock synchronization, ensuring the stable operation of the system.

Data processing and storage: Collects, filters, and converts process data, stores historical trends, alarm records, and system logs, and supports data query and export.

Redundant switching control: In redundant mode, synchronizes data in real time, automatically and seamlessly switches during faults, ensuring control continuity and no data loss. Applicable scenarios

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

Equipment: Application processor (AP), Universal Operator Station (GUS/US), LCN controller cabinet, TDC 3000 process control system

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

Application: Core computing for process control, LCN network communication management, system redundancy configuration, upgrading and replacement of old system CPUs, maintenance of faulty cards