Allen-Bradley 1756-L1M1 ControlLogix Processor Module

Discover the reliable 1756-L1M1 controller from Allen-Bradley's renowned ControlLogix 5550 series. This powerful processor module delivers robust performance for industrial automation applications with its efficient memory management and rugged design.

Product Overview

• Brand: Allen-Bradley / Rockwell Automation
• Series: ControlLogix 5550
• Model: 1756-L1M1
• Module Type: Processor/Controller
• Enclosure Rating: Open-style
• Weight: 0.35 kg (12.5 oz)

Technical Specifications

• Memory Capacity: 500 KB data/logic + 150 KB I/O memory
• Nonvolatile Memory: Not included
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Relative Humidity: 5% to 95% non-condensing
• Power Consumption: 5.33 Watts maximum
• Thermal Dissipation: 15.6 BTU/hour average
• Backplane Current: 950 mA @ 5.1V, 20 mA @ 24V
• Isolation Voltage: 30V continuous
• Dielectric Strength: 500V for 60 seconds
• ESD Immunity: 6kV contact, 8kV air discharge
• Vibration Resistance: 10-500 Hz, 2.0G peak acceleration
• Shock Resistance: 30G operating, 50G storage

Installation & Configuration

• Install in any available slot of the ControlLogix chassis
• Use compatible 1756-CP3 serial cable for programming
• Replace battery with genuine 1756-BA1 lithium battery only
• Ensure proper grounding and power supply connections
• Follow ESD precautions during handling and installation

Compatibility & Accessories

• Compatible Battery: 1756-BA1 (0.59g lithium)
• Programming Cable: 1756-CP3 serial cable category 3
• Terminal Blocks: 1756-TBCH, 1756-TBS6H
• Chassis Compatibility: All ControlLogix chassis models
• Software: Rockwell Automation programming software

For complete technical details and installation guidelines, download the full specification sheet: Download 1756-L1M1 Datasheet

Packaging & Shipping

• Package Includes: 1 x 1756-L1M1 Processor Module
• Shipping Options: FedEx, UPS, DHL express shipping
• Quality Assurance: 12-month comprehensive warranty

Frequently Asked Questions

• What is the memory configuration of this controller?
  The module provides 500 KB for data/logic and 150 KB dedicated to I/O memory.
• Can I use any serial cable for programming?
  No, you must use the specific 1756-CP3 category 3 serial cable.
• What environmental conditions can it withstand?
  It operates reliably in temperatures from 0°C to 60°C with 5-95% humidity.
• How do I replace the battery?
  Use only the compatible 1756-BA1 lithium battery for replacement.
• What are the power requirements?
  The module requires 950mA at 5.1V and 20mA at 24V from the backplane.

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