In modern industrial automation, reliable communication between remote I/O and PLCs is essential. The Schneider Electric CRA module enables efficient Ethernet-based remote I/O connectivity in PLC and DCS systems, improving scalability, diagnostics, and overall networked automation performance.
Product Details
Product Description
The Allen-Bradley 1756-L71S GuardLogix 5571S Controller is a high-performance safety-certified processor module within the ControlLogix family. It combines standard automation control with integrated safety functions, making it suitable for complex applications requiring both high capacity and SIL-rated safety features.
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: ControlLogix / GuardLogix 5570 Series
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Part Number: 1756-L71S
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Weight: 0.56 lbs (0.26 kg)
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Module Type: Processor Module
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User Memory: 2 MB
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Safety Memory: 1 MB
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Nonvolatile Memory: 1 GB CompactFlash (included)
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I/O Capacity (Max): 128,000 digital I/O, 4,000 analog I/O
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Standard Tasks: Up to 31
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Safety Tasks: 1 dedicated safety task
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Programs per Task: 100 programs
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Event Tasks: Supports all trigger types
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Built-in Communication: 1 USB port
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Optional Communication Adapters: EtherNet/IP, ControlNet, DeviceNet
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Redundancy: Not supported
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I/O Memory: 0.98 MB
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Current Draw @ 1.2 VDC: 5 mA
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Current Draw @ 5.1 VDC: 800 mA
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Power Dissipation: 2.5 W
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Thermal Dissipation: 8.5 BTU/hr
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Isolation Voltage: 30 V continuous (basic insulation type)
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Enclosure Rating: Open-style (no enclosure)
Application Scenarios
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Safety-Critical Automation: Ideal for applications requiring integrated safety control alongside standard automation tasks
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Large-Scale Systems: Supports extensive I/O capacity for complex manufacturing and process environments
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Flexible Integration: Compatible with multiple communication adapters for diverse industrial networks
FAQ
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Q: What distinguishes the 1756-L71S from standard ControlLogix controllers? A: The 1756-L71S includes dedicated safety memory and tasks, making it suitable for GuardLogix safety applications.
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Q: Does this controller support redundancy? A: No, redundancy is not supported in this model.
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Q: How many programs can run per task? A: Each task can support up to 100 programs.
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Q: What communication options are available? A: Built-in USB plus optional EtherNet/IP, ControlNet, and DeviceNet adapters.
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Q: How does this compare to the 1756-L72S? A: The 1756-L71S offers 2 MB user memory, while the 1756-L72S provides 4 MB, making the latter better suited for larger applications.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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