Description
ABB IEMMU21 is a module installation unit manufactured by Bailey Engineering Co., Ltd., a subsidiary of ABB Group. It is primarily used in industrial process control systems, particularly in the process control field of the power generation industry. Below is a detailed introduction to this product:
I. Product Overview
- Brand & Model: ABB IEMMU21
- Product Type: Module Installation Unit
- Belonging System: ABB Harmony/Infi 90 Process Control System
- Primary Application: Process control in power plants and other industrial fields, supporting equipment integration, real-time optimization management, and information management.

ABB IEMMU21 infi90 Module Mounting Unit
II. Product Features
- High Reliability:
- As part of the process control system, ABB IEMMU21 exhibits high reliability and stability, ensuring continuous and stable operation of industrial processes.
- The product undergoes rigorous quality control and testing, enabling it to operate reliably in harsh industrial environments over an extended period.
- Powerful Functionality:
- Supports multitasking and parallel operations, enhancing system efficiency and flexibility.
- Features multiple communication interfaces, including Ethernet, serial communication, and fieldbus interfaces, enabling connection and communication with other devices, systems, and networks.
- Supports CPU redundancy for higher availability, ensuring the system can swiftly switch to a backup CPU in case of a failure, preventing production interruptions.
- Easy Integration and Management:
- ABB IEMMU21 can be conveniently integrated into existing industrial control systems without requiring extensive system modifications.
- Supports real-time optimization management and information management, helping enterprises improve production efficiency and reduce operational costs.
- Compatibility and Scalability:
- As part of the ABB Harmony/Infi 90 system, IEMMU21 is compatible with other ABB products, facilitating easy integration with other ABB devices.
- The product supports backward compatibility, ensuring that each system upgrade enhances functionality while protecting the enterprise’s investment.
III. Application Areas
- Power Generation Industry: ABB IEMMU21 is primarily used for process control in power plants, including critical aspects such as boiler control, turbine control, and generator control.
- Other Process Industries: Such as chemicals, pharmaceuticals, pulp and paper, water and wastewater treatment, petrochemicals, metallurgy and mining, food and beverage, cement, and sugar industries.
IV. Product Advantages
- Proven Process Control System: ABB Harmony/Infi 90 is a proven process control system suitable for various industrial applications. The system has undergone multiple upgrades, continuously enhancing functionality and stability.
- Long-term Technical Support and Services: ABB provides a comprehensive lifecycle system support plan, enabling customers to continuously evolve and upgrade their existing systems to the latest products.

