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 out put 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 IMMFP12 Multi-Function Processor Module (MFP) is one of the workhorses of the INFI 90® OPEN control module line.
It is a multiple loop analog, sequential, batch and advanced controller that provides powerful solutions to process control problems.
It also handles data acquisition and information processing requirements providing true peer-to-peer commu nications.
One use is for language support (C and BASIC). Each channel supports standard baud rates up to
19.2 kilobaud. The appropriate termination unit or termina tion module uses standard D-type connectors.
The NTMP01,NIMP01, or NIMP02 termination device optically isolates these communication channels.
This optical isolation eliminates the need to tie chassis ground to system common and alleviates the potential of damage from ground currents. One channel can also be used as a RS-485 connection.
DMA SECTION
The microprocessor sets this section for direct memory access or DMA.
The DMA section allows data being received or trans mitted over the various communication paths to be transferred directly to or from the RAM memory without microprocessor intervention.
This process is known as cycle stealing. It greatly reduces the overhead associated with the microprocessor doing
such data moves.
This circuitry is used for the higher speed communication paths where the microprocessor would be overloaded handling the data moves, specifically Controlway.
The 40-kilobaud station link and the redundancy link also use this feature.
