Allen-Bradley 1772-LX Mini Processor

The Allen-Bradley 1772-LX is a Mini Processor used in the PLC 2/16 industrial automation system. It functions as the core processor of the PLC, managing inputs from I/O modules and executing user-written programs. The processor includes a memory system with 4000 words of backup EEPROM and general memory, enabling efficient data processing and program storage. It supports various mathematical and logic operations essential for industrial control.

Technical Specifications

• Module Type: Mini Processor
• Part Number: 1772-LX
• Backplane Requirement: 1.25 Amperes at 5 Volts DC
• Amperes: 0.80/0.40
• Operating Frequency: 50/60 Hz
• Output: 4 Amperes at 5 Volts DC
• Screw Torque: 7-9 lb*in
• Typical Application: 10-32 Volts DC, Digital
• Coating: Conformal Coat
• Required External Power: None
• Typical AC Signal Delay (Off): 29 (+/- 8) ms
• Typical DC Signal Delay (Off): 30 (+/- 7) ms
• Wiring Arm: 1771-WN
• Dimensions: 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
• Weight: 2.20 lbs

Memory

• General Memory: 4000 words
• Backup EEPROM: 4000 words
• Data Table Expansion: 3968 words

Control Features

• PROC Indicator: Green (operating), Red (fault), Off (program mode)
• Battery: For memory protection (BATT light turns red when replacement is needed)
• Key Switch Selector: 4 positions (PROG, R/P, RUN, MEM STORE)

Interfaces

• 15-pin INTFC connector: For program loading and interfacing with related devices