The ABB IEMMU21 modular mounting unit is part of ABB Infi 90 distributed control system (DCS) for industrial automation and process control applications. The IEMMU21 is an update or replacement for the IEMMU01 which is part of the same Infi 90 system.

The IEMMU21 is a structural unit used to mount the various modules, such as processors, input/output (I/O) modules, communication modules, and power supply units, that are part of the Infi 90 DCS. It provides a secure framework that allows these components to be easily integrated and organized within the control system.

Like other mounting units in the Infi 90 series, the IEMMU21 is modular and expandable, it can be expanded or adapted to meet the specific requirements of a given process control application. Multiple IEMMU21 units can be connected to accommodate larger system configurations.The IEMMU21 is designed for rack mounting and fits into a standardized rack or frame for mounting and organizing multiple system modules. The rack is designed for easy installation and maintenance of modules, making the system more compact and efficient.

Frequently asked questions about the product are as follows:

-What is the ABB IEMMU21 module mounting unit?

The IEMMU21 is a module mounting unit designed for ABB's Infi 90 distributed control system (DCS). It provides a mechanical structure for mounting and organizing the various modules within the system. It ensures that these modules are properly aligned, securely mounted, and electrically connected.

-What modules are mounted on the IEMMU21?

I/O modules for collecting data from sensors and controlling actuators. Processor modules for executing control logic and managing system processes. Communication modules for facilitating data exchange within the system and between different systems. Power supply modules for providing the necessary power to the system.

-What is the main purpose of the IEMMU21 unit?

The main purpose of the IEMMU21 is to provide a safe and orderly structure for mounting and interconnecting the various modules. It ensures proper electrical connections and communication between modules, which contributes to the overall operation of the Infi 90 system.