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 while providing true peer-to-peer communications. The comprehensive set of function codes supported by this module handles even the most complex control strategies. The INFI 90 OPEN system uses a variety of analog and digital I/O modules to communicate with and control the process, and the MFP module communicates with up to 64 modules in any combination.
The MFP module has three operating modes: execute, configure, and error. In execute mode, the module runs control algorithms while continuously checking itself for errors. If an error is found, the front-panel LEDs display an error code that corresponds to the problem. In configure mode, users can edit existing or add new control algorithms, and during this time, the MFP does not execute control logic. If an error occurs while in execute mode, the module automatically switches to error mode.
A one-megabaud CPU-to-CPU communication link allows the MFP module to work with redundant processors. This link enables a backup MFP to remain in hot standby while the primary module runs the control algorithms. If the primary MFP goes off-line for any reason, control transfers to the backup module in a smooth, bumpless switchover.
| Microprocessor | 32 bit processor (16 bit external bus) running at 16 MHz |
| Memory | Total:512 kbytes ROM & 512 kbytes RAM & 256 kbytes NVRAM / Available:347,712 bytes RAM & 194,752 bytes NVRAM |
| Power Requirements | +5 VDC @ 2 A; 10 W typical |
| Serial Ports | Two RS-232-C ports, or one RS-485 and one RS-232-C port all of which link signals at a rate of up to 19.2 kbaud. |
| Station Support | Sixty-four 40-kbaud serial stations (IISAC01) or eight 5-kbaud serial stations (NDCS03 or NDIS01). |
| Redundant Communication Link Rate and Type | 1 Mbaud serial link. |
| Electromagnetic/Radio Frequency Interference | Values not available at this time. Keep cabinet doors closed. Do not use communication equipment any closer than 2 meters from the cabinet. |
| Programmability | C, BASIC, BATCH, ladder, function codes, and user-defined functions. |
| Dimensions | 35.56 mm wide (1.40 in.)<br>177.80 mm high (7.00 in.)<br>298.45 mm long (11.75 in.) |
| Mounting | Occupies one slot in a standard INFI 90 OPEN module mounting unit. |
| Ambient Temperature | 0° to 70°C (32° to 158°F) |
| Relative Humidity | 5% to 95% up to 55°C (131°F)(noncondensing) & 5% to 45% above 55°C (131°F)(noncondensing) |
| Atmospheric Pressure | Sea level to 3 km (1.86 mi) |
| Air Quality | Noncorrosive |
| Certification | CSA certified for use as process control equipment in an ordinary (non-hazardous) location. Factory Mutual approved for use in Class I, Division 2, hazardous locations. |
The IMMFP12 Multi-Function Processor Module operates much like a series of functional blocks working together. To explain how the MFP module functions, this section presents its functionality in a block diagram (refer to below).
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ABB IMMFP12 Multifunction Processor Module with 32 bit processor for INFI 90 OPEN system Images
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