ABB NDBU-95C (64008366) – Network & Data Buffer Unit for Industrial Automation

Product Introduction

The ABB NDBU-95C, part number 64008366, is a data buffer and communication interface module designed for ABB automation and control architectures. Its primary role is to facilitate stable data exchange, manage communication timing, and ensure reliable synchronization between distributed control components. Built for harsh industrial environments, the NDBU-95C enhances the robustness and responsiveness of modern automation networks.

1. Core Applications

The NDBU-95C is widely used across industries requiring dependable communication and data buffering:

Distributed control systems in power plants

Industrial robotics and automated production lines

Oil & gas processing and refining operations

Mining, metallurgy, and heavy manufacturing

Water & wastewater management systems

Large-scale utility and substation automation

Its stability and buffering performance make it ideal for systems requiring precise timing and continuous data integrity.

2. Key Features

High-reliability data buffering, reducing risk of data loss during communication delays

Stable synchronization between multiple control modules

Excellent noise immunity, ideal for EMC-heavy industrial zones

Flexible interface compatibility within ABB’s automation ecosystem

Long operational lifespan, engineered for continuous, high-duty environments

Compact modular design, easily integrated into control racks

Status and diagnostic indicators to simplify commissioning and troubleshooting

3. Structural Components

The ABB NDBU-95C integrates several specialized internal sections:

Communication Front-End – Manages data reception and protocol handling

Buffer Memory Module – Ensures temporary data storage with high integrity

Signal Conditioning Block – Filters and stabilizes incoming data signals

Isolation Barrier – Protects internal control circuits from voltage disturbances

Output Synchronization Unit – Sends clean, verified data to downstream modules

Reinforced Housing – Industrial-grade casing for vibration and EMC endurance

4. Technical Specifications

5. Operating Principles

The NDBU-95C collects incoming communication data, stores it momentarily in its internal buffer, and outputs it in a controlled, fully synchronized format. This prevents communication congestion, halves data jitter, and stabilizes timing across controllers—especially important in distributed or high-speed automation architectures.

6. Installation Guidelines

Mount the module into the designated ABB automation rack or slot

Verify correct orientation and secure locking before wiring

Use shielded communication cables to ensure noise-free data transfer

Ground according to ABB system EMC practices

After applying power, verify communication health via ABB engineering tools

Perform test messaging or data polling to confirm buffering operation

7. Maintenance & Reliability Tips

Inspect connectors and wiring during routine maintenance

Ensure the module is not exposed to excessive dust, oil vapor, or moisture

Monitor diagnostics and alarm indicators for early detection of communication issues

Check for secure seating within the rack, especially in high-vibration environments

Update system firmware or configuration according to ABB guidelines

8. Final Notes

The ABB NDBU-95C (64008366) excels in providing stable, efficient, and interruption-resistant communication within ABB automation solutions. Its reliability, robust electrical design, and long service life make it indispensable for applications where data synchronization and communication integrity are mission-critical.