Bailey IMMFP12 Controls ABB Multi-Function Processor ABB PLC Module

The IMMFP12 Multi-Function Processor Module is a powerful stand-alone controller for use in complex control applications. It has the processing speeds and storage capabilities necessary for advanced control applications. The IMMFP12 module is a user-configurable device that receives process input and output through a variety of analog and digital I/O modules.

This instruction manual provides information about how the IMMFP12 module functions and how to install, configure, operate, and troubleshoot the module.

The microprocessor, operating at 16 megahertz, enables module operation and control. The operating system instructions and function code library of the microprocessor reside in read-only memory (ROM). Since the microprocessor is responsible for overall module operation, it communicates with all the functional blocks. The microprocessor also constantly triggers the machine fault timer (MFT) circuit. If the microprocessor or module software fails and the MFT circuit is not reset, the MFT circuit issues a board-wide reset, and the status LED turns red. This condition is known as a fatal error.

The MFP module goes into error mode whenever the built-in system diagnostics detect a hardware or configuration error. If a hardware error is detected, the module halts and displays the error code using LEDs one through eight. If an NVRAM memory error is detected, the status LED flashes, but the module continues to operate. This is possible because a copy of the valid configuration is loaded into RAM memory and is executed from there. The next time the module is reset it will not start up but will fail with an NVRAM memory error.

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