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1775-MEF

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MEMORY MODULE 256K ERROR CORRECTING

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Technical specifications for 1775-MEF

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
UPC	10612598005854
Product Lifecycle Status*	Discontinued/Obsolete

* The Allen Bradley 1775-MEF has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1775-MEF units instead of migration.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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The 1775-MEF is an Allen-Bradley product that is part of the Programmable Logic Controller module series (PLC-3). The 1775-MEF is a Memory Module, designed for Error Correction. It is part of the Allen Bradley PLC-3 Module series that includes Memory, Communication, Power Supplies, and Scanners. These PLC-3 modules can be used in a variety of configurations as well as expansion options according to the current need of the user. The 1775-MEF model and the entire PLC-3 series are based on an oddly more progressive AMD microprocessor than the initial two models. The communication components are tried and tested in a closed loop, thus ensuring free communication without any errors. The 1775-MEF module comes with a lithium battery that provides an extended backup time. The battery is non-rechargeable, so it is removed and replaced when it indicates BATTERY-LOW. Another battery option is the nickel-cadmium battery offers short-term backup; it is rechargeable and will automatically recharge anytime the module is plugged into a powered power supply, with an average 48-hour recharge time.

The Allen-Bradley 1775-MEF has a Memory Error Corrected indicator, which, when the indicator is yellow, means ‘Steady’; when the light turns off, no single-bit errors were present since power turn-on. The module also has the Memory Error indicator. A steady red light indicates that there is an uncorrectable error, either soft or hard. If the indicator is off, no uncorrectable memory errors were detected. This module also contains a low battery indicator.