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Allen Bradley PLC 3 1775-MSD

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1775-MSD

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The 1775-MSD memory module is designed for use in Allen Bradley's PLC 3 series. This module is powered by the system backplane and requires an input voltage that ranges from 5 VDC to 15 VDC. It is capable of holding 128K words of data and includes diagnostic features to ensure data integrity.

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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-MSD

ManufacturerAllen Bradley
Product TypeMemory Module
Product LinePLC 3
Part Number1775-MSD
Weight7.38 lbs (3.35 kg)
Power SourceSystem backplane via the chassis
Low Input Voltage5 VDC
High Input Voltage15 VDC
Backplane Current3.5 A max at +5 VDC
Operating Temperature0° to 60°C
Storage TemperatureUp to 85°C
Relative Humidity5 - 95% non-condensing
Installation Altitude1000 m
Mounting TypeChassis type
Memory Capacity128K words of storage
DiagnosticsFeatures error indicators and internal error correction technology to maintain data integrity
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The 1775-MSD memory module is an essential component for the Allen Bradley PLC 3 series. It connects directly to the system backplane through the chassis, effectively utilizing low input voltages between 5 VDC and 15 VDC. With a memory capacity of 128K words, it offers substantial data storage for various applications. The module manages a maximum backplane current of 3.5 A at +5 VDC.

This unit operates efficiently under standard conditions, functioning within an operating temperature range of 0° to 60°C and with a maximum storage temperature reaching 85°C. The 1775-MSD can be installed at elevations up to 1000 meters above sea level and is designed to maintain performance in relative humidity situations that span from 5% to 95%, assuming non-condensing air.

For improved reliability, this memory module incorporates diagnostic features that include error indicators and advanced internal error correction technology. These attributes help uphold data integrity and ensure reliable operation in diverse conditions.

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