The code LUD700A appears to be a product code for a communication board manufactured by Hitachi, not ABB. Here's a breakdown of the information and how to find details:

**Manufacturer:**

* While ABB manufactures various industrial automation components, LUD700A points towards Hitachi  being the original equipment manufacturer.

**Function:**

* LUD700A likely refers to a **communication board** or **UD module** based on information found on parts distributor websites.
* Communication boards are interfaces within a system that enable data exchange between different components.

**Applications (Possible):**

*  Industrial control systems
*  Programmable logic controllers (PLCs)
*  Data acquisition systems (DAQs)

**Finding Information:**

* **Limited Public Information:** Due to the technical nature of industrial control components, detailed information might be restricted. Here are some suggestions:
    * **Hitachi Website:** While Hitachi might not have publicly available information on LUD700A  due to its age or replacement by newer models,  search their website ([invalid URL removed]) for industrial automation products or archived resources.
    * **Parts Distributors:** Several online retailers and industrial parts suppliers list the LUD700A with brief descriptions [various online retailers, information not shown due to privacy]. Be cautious about the accuracy and detail of this information, especially if it refers to used or discontinued products.
    * **Search for Alternatives:** If the LUD700A is no longer available,  consider searching for compatible communication boards from other manufacturers based on the system it was designed for.

**Additional Notes:**

* The LUD700A might be a discontinued product replaced by newer communication modules in Hitachi's current product lines.
* Working with industrial control systems often requires qualified personnel due to their complexity and role in critical applications.

I hope this clarifies the confusion about the manufacturer and helps you find the information you need about the LUD700A communication board. Let me know if you have any other questions.