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1756-L71S

Allen-Bradley 1756-L71 L71S PAC Module

A kan haja (21 guda), a shirye don aikawa

  • Manufacturer: Allen-Bradley

  • Product No.: 1756-L71S

  • Product Type: Controller Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 200g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Allen-Bradley ControlLogix 1756-L71 & GuardLogix 1756-L71S Controllers

The Allen-Bradley 1756-L71 is a ControlLogix programmable automation controller with 2 MB user memory and 0.98 MB I/O memory. The 1756-L71S is its safety variant, adding 1 MB safety memory and SIL 3/Cat. 4/PLe compliance. Both models feature a 4-character display, USB port, and support redundancy on ControlNet networks.

Key Features

  • 1756-L71: 2 MB user memory, 0.98 MB I/O memory
  • 1756-L71S: Adds 1 MB safety memory, SIL 3/PLe certified
  • 4-character display for onboard diagnostics
  • Supports redundancy on ControlNet networks
  • USB port for programming and maintenance
  • Uses SD cards (1GB/2GB) for non-volatile storage
  • I/O capacity: 128,000 digital / 4,000 analog points
  • Requires 1756-ESMCAP energy storage module (no battery)

Technical Specifications

  • Brand: Allen-Bradley / Rockwell Automation
  • Series: ControlLogix / GuardLogix L7
  • Models: 1756-L71 (standard), 1756-L71S (safety)
  • User Memory: 2 MB
  • I/O Memory: 0.98 MB
  • Safety Memory: 1 MB (L71S only)
  • SD Card: 1 GB included (expandable to 2 GB, use 1784-SD1/SD2 only)
  • I/O Capacity: 128,000 digital / 4,000 analog
  • Communication: 1 USB port, supports EtherNet/IP, ControlNet, DeviceNet
  • Power: 5 mA @1.2V DC, 800 mA @5.1V DC
  • Operating Temperature: 0°C to 60°C (32°F to 140°F)
  • Energy Storage: Requires 1756-ESMCAP/ESMCAPK modules

Installation & Compatibility

  • Fits all 1756 ControlLogix chassis (1756-A4, A10, A17, etc.)
  • 1756-L71S must pair with 1756-L7SP safety partner module
  • Use only Rockwell 1784-SD1/SD2 SD cards to prevent data corruption
  • Battery-free operation with energy storage modules

Certifications

  • 1756-L71S: SIL 3, Category 4, PLe certified
  • Both models: CE, UL, ATEX certified

Package Includes

  • 1x 1756-L71 or 1756-L71S controller
  • 1x 1 GB SD card (1784-SD1)
  • 1x 1756-ESMCAP or 1756-ESMCAPK energy storage module
  • 1x documentation CD

Shipping Options

  • FedEx, UPS, DHL express worldwide
  • Ships within 24 hours from stock

Technical Documentation

📥 Download Product Datasheet PDF

FAQ

1. What is the difference between 1756-L71 and 1756-L71S?

The 1756-L71S adds 1 MB safety memory and SIL 3/PLe safety certification, requiring a 1756-L7SP safety partner module.

2. What SD cards are compatible with these controllers?

Use only Rockwell 1784-SD1 (1GB) or 1784-SD2 (2GB) cards to ensure reliable operation and prevent data corruption.

3. What is the I/O capacity of these controllers?

They support up to 128,000 digital I/O points and 4,000 analog I/O points.

🏷️ Tags: Controller Module
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