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Allen Bradley PLC 3 1775-ME8

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1775-ME8

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The 1775-ME8 is an error-correcting RAM module from Allen Bradley's PLC 3 series. It features a memory capacity of 32K and utilizes ECRAM technology to provide reliable data storage and automatic error correction.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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.

Technical specifications for 1775-ME8

ManufacturerAllen Bradley
Product TypeError-correcting RAM Module
Product LinePLC 3
Part Number1775-ME8
UPC782451014682
Weight4.50 lbs (2.04 kg)
Error DetectionSingle-bit
Memory TypeECRAM
Memory Capacity32K
Error CorrectionAutomatic
Battery BackupSupported
Battery Type3.0 V Lithium
Access MethodProcessor-controlled
Memory ProtectionError Correction Logic
Data StorageProgram and Data Tables
Slot RequirementDedicated Memory Slot
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The Allen Bradley 1775-ME8 is a specialized RAM module designed for fault tolerance in the PLC 3 system. It functions as an error-correcting RAM module, providing a memory capacity of 32K. Utilizing ECRAM technology, this module automatically corrects errors during operation, thus ensuring consistent performance.

For error detection, the 1775-ME8 is equipped with single-bit detection capabilities, allowing it to identify and rectify minor errors promptly. This module also supports a battery backup to maintain memory integrity in the event of a power interruption, using a 3.0 V lithium battery for reliable operation.

The module is accessed via a processor-controlled method, enabling streamlined communication within the system. It employs error correction logic to safeguard data stored within program and data tables. Additionally, it mandates a dedicated memory slot for installation, making it specific in its requirements while integrating seamlessly with the PLC 3 system.

Revision Part #Also known as
1775-ME8 Ser A1775-ME8/A, Series A, Rev A
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