1785-MJ

Overview

The 1785-MJ is a memory module for Allen-Bradley PLC systems, providing program backup functionality and designed for standard PLC-5 processors.

General Information

• Manufacturer: Allen-Bradley

• Part Number: 1785-MJ

• Module Type: Memory Module

• Memory Size: 8K Words

• Write Protection: Removable jumper

• Function: Program Backup

• For This Product: Standard PLC-5 Processors

• Backplane Requirement: 2.5 A at 5 V DC

• Certifications: UL, CSA

Compatibility

• Compatible Processors:

• 1772-LW (PLC-2/17)

• 1772-LWP (PLC-2/17)

• 1785-LT (PLC-5/10)

• 1785-LT2 (PLC-5/12)

• 1785-LT3 (PLC-5/15)

• 1785-LT4 (PLC-5/25)

Environmental Conditions

• Operating Temperature: 0° to 60° C (32° to 140° F)

• Storage Temperature: –40° to 85° C (–40° to 185° F)

• Relative Humidity: 5 to 95% (without condensation)

Size & Dimensions

• Size:

• Inches: 2.18L x 1.73H x 0.69D

• Millimeters: 55.4L x 43.9H x 17.4D

• Weight: approx. 340 g

Additional Features

• Removal and Insertion Under Power (RIUP): No

• Number of Words: 6 Kilowords SRAM

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