Honeywell 51195752100 Product Description

Model: 51195752100 (Standard Model: 51195752-100)

Brand: Honeywell

Series: TDC 3000 / TPS Distributed Control System

Type: Dual Node Module

Status: Discontinued (DISCONTINUED)

I. Product Overview

51195752-100 is a key communication module of the TDC 3000 system's LCN (Local Control Network). Its core function is to achieve dual-node redundant communication, providing high reliability, uninterrupted, and real-time data transmission capabilities for the system. As a core component of the LCN network, it ensures seamless switching, zero data loss, and uninterrupted control when a single node fails, making it a crucial component for building high availability and high fault-tolerant industrial control systems. 

II. Core Specification Parameters

1. Communication and Node Characteristics

Node Type: LCN Dual Redundancy Node

Communication Protocol: TDC 3000 proprietary LCN protocol

Network Topology: Redundant Dual Ring Network (Self-healing Ring, Automatic Switching in Single Ring Failure)

Transmission Rate: 5 Mbps (LCN Standard Rate)

Number of Nodes: Supports Dual Node Parallel Operation (Master/Backup Automatic Switching)

Redundancy Mode: 1:1 Hot Redundancy (No Disturbance Switching, Switching Time < 10ms)

Communication Distance: Single Segment Maximum 2km (Multi-segment Relay Up to 10km)

Interface Type: Dual 75Ω Coaxial Cable Interface (Redundant Physical Links)

2. Hardware and Electrical Characteristics

Size: Standard 5.25-inch Single Slot Width (148×203×25mm)

Weight: 1.5kg

Installation: TDC 3000 LCN Cabinet Standard Slot

Power Supply: +5V @ 1.8A (Backplate Power Supply)

Indicators:

PWR: Power Normal

ACT: Node Activated (Primary Node)

STB: Node Standby (Backup Node)

COM: Communication Normal

FAIL: Fault Alarm

Connectors: 2×BNC Coaxial Interface (Redundant Links)

3. Environmental Parameters (Industrial Grade)

Operating Temperature: 0°C ~ +60°C

Storage Temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% RH (No Condensation)

Anti-Vibration: 5g (10~2000Hz)

Anti-Shock: 25g (11ms Half-Sine Wave)

MTBF: > 450,000 Hours

4. Compatibility

System Compatibility: TDC 3000, TPS, Micro TDC 3000

Network Compatibility: LCN, LCN-II, LCN-4

Node Compatibility:

51195751-100: Single Node Module (Non-Redundant)

51195753-100: Three-Node Expansion Module

Device Compatibility:

Operator Station (US/UXS), Application Module (AM), Historical Module (HM), Computer Gateway (CG), Process Control Unit (PCU), UCN Interface Module (PLNM)

III. Core Functions and Advantages

1. Dual Node Hot Redundancy (Core Value)

1:1 Master-Slave Redundancy: In case of primary node failure, backup node takes over without disturbance in <10ms

Zero Data Loss: Dual Nodes Real-time Data Synchronization, Fault Switching Without Packet Loss

Control Continuity: Critical Control Loops Continuously Execute, No Risk of Shutdown

Self-healing Ring Network: Dual Ring Physical Links, Single Ring Failure Automatically Reconstructs

Online Maintenance: Faulty Node Can Be Replaced Online, Without Affecting System Operation

2. High-Speed LCN Communication

5Mbps Proprietary Bus: Real-time < 5ms, Meeting Closed-loop Control Requirements

Full Node Interconnection: Supports 64 LCN Nodes for High-Speed Data Exchange

Priority Scheduling: Control Data Prioritized Transmission, Ensuring Real-time Performance

Hardware CRC Check: 100% Data Integrity, No Transmission Errors

3. Industrial-grade High Reliability Design

Military-grade Components: Wide Temperature Chips, Gold-plated Pins, Long-life Capacitors

Full Electromagnetic Shielding: Anti-strong EMI/RFI Interference, Suitable for Industrial Sites

No Fan Design: Zero Moving Parts, Extremely Low Failure Rate

Overvoltage/Overcurrent Protection: Multi-level Protection at Power Port, Anti-Surge, Anti-Short Circuit

4. Seamless System Integration

Plug-and-Play: Insert LCN Cabinet, Automatically Identified, Automatically Configured

Downward Compatibility: Perfectly Replace 51195751-100 Single Node Module

No Configuration Required: System Automatically Enables Redundancy, No Programming, No Configuration

Status Visualization: LED Real-time Displays Master-Slave / Communication / Fault Status IV. Model Comparison (Single Node vs. Dual Node) Table

Parameters: 

51195751-100 (Single Node)  51195752-100 (Dual Nodes)

Redundancy capability: None (Single point failure leads to network disconnection)  1:1 hot redundancy (no disturbance switching)

Switching time: —  < 10ms

Link configuration: Single coaxial link  Dual redundant coaxial links

Reliability: Basic  99.999% high availability

Applicable scenarios: Non-critical, test systems  Core control, critical production

MTBF: >350,000 hours  >450,000 hours

V. Typical application scenarios

TDC 3000 core LCN network: Redundant communication for the entire plant control network

Critical process control stations: Oil refining, chemical, power  Core device control

High availability operation stations: Operator stations, engineer stations  Redundant access

Historical data server: HM historical module  Redundant communication guarantee

Full plant information integration: CG computer gateway  Redundant data transmission

24/7 continuous production: No downtime, no interruption  Industrial control scenario

VI. Alternative solutions

Hardware alternative: 51195753-100 (Three Nodes)  Higher redundancy

Modern alternative: Experion PKS LCN redundant interface module (compatible with TDC 3000)

Software alternative: Virtual LCN network (software redundancy, no hardware module)