Free UPS Ground on All Orders!
Request a
Fast Quote
Account
Cart
Quote
+1 (919) 205-4392
Allen Bradley PLC 5 1771-HM3A

Product image is representative; revision or series may vary. Contact us to request a specific version.

1771-HM3A

|
Need a Specific Revision?

The 1771-HM3A memory cartridge from Allen Bradley is specifically designed for use with PLC 5 systems, providing crucial memory storage functionality. It utilizes CMOS technology, supporting compatibility with IMC 123 Motion Controller Modules and ensuring reliable performance in diverse applications.

In Stock
Ships from Raleigh, NC
2 Year DO Supply Warranty
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.
Learn more
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 1771-HM3A

ManufacturerAllen Bradley
Product TypeMemory Cartridge
Product LinePLC 5
Part Number1771-HM3A
Weight0.25 lbs (0.11 kg)
Memory TypeCMOS Memory
Spare Part/AccessoryYes
Compatible withIMC 123 Motion Controller Modules
Battery TypeLithium Battery
Replaceable BatteryYes
Actual User Memory Capacity85 KB
Memory Size128 KB/64K Word
Estimated Battery Life at Normal TemperatureApproximately 3.5 Years
Estimated Battery Life at 60 degrees CelsiusApproximately 1.25 Years
Operating Temperature0 to 60 degrees Celsius
Storage Temperature-40 to 85 degrees Celsius
Relative Humidity Without Condensation5 to 95%
Maximum Operating Altitude1000 meters above sea level
Request a Repair

The 1771-HM3A by Allen Bradley serves as a memory cartridge integral to the PLC 5 series, utilizing CMOS memory technology. This module provides essential storage options for users, featuring a memory capacity of 85 KB accessible to the user, while the total memory size is specified at 128 KB or 64K words. Designed to ensure compatibility with IMC 123 Motion Controller Modules, this component enhances operational efficiency by facilitating smooth data management.

The device is powered by a lithium battery, which can be replaced to extend the lifespan of the cartridge. Under typical operating conditions, the estimated battery life reaches approximately 3.5 years, demonstrating reliability for extended use. However, in hotter conditions, specifically at 60 degrees Celsius, the battery life decreases to around 1.25 years. The 1771-HM3A memory cartridge remains functional in operating temperatures ranging from 0 to 60 degrees Celsius, while it can withstand storage temperatures between -40 and 85 degrees Celsius.

Moreover, this memory cartridge operates effectively within a humidity range of 5% to 95% without condensation, ensuring stable performance in varying environmental conditions. It is also rated to function at an altitude of up to 1000 meters above sea level, making it suitable for a range of installation settings.