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Allen Bradley PLC 3 1775-ME8B

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1775-ME8B

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The Allen Bradley 1775-ME8B is an error-correcting RAM module designed for use in PLC 3 systems. It offers a memory capacity of 32K and includes automatic error correction, ensuring data integrity and reliability.

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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-ME8B

ManufacturerAllen Bradley
Product TypeError Correcting RAM Module
Product LinePLC 3
Part Number1775-ME8B
Weight2.00 lbs (0.91 kg)
UPC782451014682
Memory Capacity32K
Error Correction MethodAutomatic
Battery BackupAvailable
Battery Type3 V Lithium
Access MethodProcessor Controlled
Status IndicatorLEDs
Minimum Operating Temperature0°C
Maximum Operating Temperature60°C
Storage Temperature Range-40 to 85°C
Relative Humidity5 to 95% (non-condensing)
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The 1775-ME8B RAM module from Allen Bradley’s PLC 3 series functions primarily as an error-correcting memory component. It supports a memory capacity of 32K, essential for various processing tasks. Automatic error correction enhances its reliability by correcting data discrepancies, ensuring that the information stored remains accurate and trustworthy.

A key feature of this module is its battery backup, which employs a 3 V lithium battery. This allows the module to retain data even when power is interrupted. The access method is processor-controlled, ensuring efficient communication between the RAM module and the system's main processor.

In terms of operational limits, the 1775-ME8B is built to work within a temperature range of 0°C to 60°C, making it suitable for many environments. For storage, it withstands temperatures spanning -40°C to 85°C. Relative humidity levels between 5 and 95% are permissible, provided that conditions remain non-condensing. The module also incorporates LEDs to indicate status, allowing for easy monitoring of functionality. This combination of features makes the 1775-ME8B a reliable choice for PLC 3 systems and similar applications.

Revision Part #Also known as
1775-ME8B Ser A1775-ME8B/A, Series A, Rev A
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