MC-TAIH14 HONEYWELL

HONEYWELL MC-TAIH14 Memory Board, Dynamic

Brand：HONEYWELL Model number：MC-TAIH14

Country of origin: United States Product weight：0.4kg

HS code：8517623990

Product Details：

Product Dimensions：

The primary function of a dynamic memory board is to expand the working memory of a control processor. It acts as the system's "scratchpad" memory, providing the high-speed storage necessary for the controller to execute complex algorithms, manage real-time data from a multitude of I/O modules, and handle historical data logging. These boards are typically modular, designed to be easily inserted into a specific slot within a controller rack or chassis. They are engineered to be extremely reliable and rugged to withstand the harsh conditions of industrial and even aerospace environments. Honeywell is particularly known for its highly reliable, radiation-hardened memory products for aerospace and military applications, which often use specialized memory technologies like Static RAM (SRAM) and MRAM.

Product Parameters

Specific parameters vary widely by the generation and model of the board (e.g., 51401072-300). Common specifications include:

Memory Capacity: The total amount of data the board can store, measured in words or megabytes (e.g., 2 MB, 3M words).
Access Speed: The time it takes for the controller to read or write data from the board. This is a critical factor for real-time control.
Power Requirements: The voltage and current needed to power the board, typically provided by the controller chassis backplane (e.g., 5V DC).
Physical Dimensions: The size and weight of the board, which must conform to the specific rack or chassis it's designed for.
Operating Environment: The temperature and humidity range the board is rated for, which can be standard industrial or a more extreme range for aerospace or high-temperature applications.
Certification: Compliance with relevant industrial and military standards (e.g., UL, CE, MIL-PRF-38535 for radiation-hardened versions).

Product Advantages

High Reliability: Honeywell's memory boards are designed to be a highly reliable component in mission-critical control systems. They undergo rigorous testing to ensure stable, long-term performance.
Seamless Integration: As a proprietary or purpose-built component, it integrates perfectly with the controller, ensuring high performance and compatibility with the system's architecture.
Modularity: The modular design allows for easy installation, replacement, and upgrades without requiring a full system overhaul. This simplifies maintenance and reduces downtime.
Performance: Dynamic memory boards provide the high-speed access required for complex, data-intensive control applications, allowing controllers to execute logic and react to process changes in real-time.
Legacy System Support: For companies with existing Honeywell control systems, these boards are essential for maintaining and extending the life of their equipment.

Important Considerations

Obsolescence: Many dynamic memory boards, especially those for legacy systems like the TDC 3000, are no longer in production. They can be difficult to find and may only be available from surplus or third-party vendors.
Compatibility: It is crucial to verify the part number and model to ensure the board is compatible with the specific controller and system version you have. Incompatible boards will not work and could potentially damage the system.
Data Volatility: Since these are dynamic memory boards, they are volatile. This means data is lost when power is removed. The controller or an external battery backup system must be in place to prevent data loss.
Proper Handling: Like any sensitive electronic component, static discharge precautions must be taken during handling and installation.
Cost: Due to their specialized nature and the limited supply of legacy parts, these boards can be expensive.

Product Applications

Honeywell dynamic memory boards are essential components in a variety of industrial and high-reliability applications:

Industrial Process Control: Used in older distributed control systems (DCS) in chemical plants, refineries, and power generation facilities to store real-time process data and control algorithms.
Building Management Systems: Found in legacy building automation systems to handle system variables, event logs, and operational data.
Aerospace and Defense: Specialized, radiation-hardened versions are used in avionics, satellites, and military systems where reliability in harsh environments is paramount.
Machine Automation: In older automated manufacturing lines, they would have been used to provide a larger memory space for complex machine control logic and diagnostics.
Data Storage: Acting as the primary volatile storage medium for the controller's CPU, providing space for collected process data, setpoints, and historical trends.

51400821-100 HONEYWELL

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