Industrial Automation Solution – Allen-Bradley 1756-L85E ControlLogix Controller | ControlLogix Series
Where This Product Is Used
The Allen-Bradley 1756-L85E is a high-performance ControlLogix programmable logic controller (PLC) engineered for mission-critical industrial environments. Engineers and system integrators specify this controller across a wide range of demanding applications:
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, and powertrain assembly requiring deterministic, high-speed I/O coordination.
- Oil & Gas: Upstream wellhead control, midstream pipeline SCADA integration, and downstream refinery process automation with SIL-rated safety interlocks.
- Water & Wastewater Treatment: Multi-pump station control, SCADA-linked remote telemetry, and chemical dosing systems demanding 24/7 uptime.
- Food & Beverage: High-speed packaging lines, CIP (Clean-in-Place) sequencing, and batch recipe management under FDA/HACCP compliance.
- Metals & Mining: Rolling mill drives coordination, conveyor belt management, and crusher control with high-vibration tolerance.
- Power Generation & Utilities: Turbine governor control, substation automation, and distributed energy resource (DER) management via EtherNet/IP.
Technical Specifications
- Part Number / SKU: 1756-L85E
- Series: ControlLogix 5580
- Manufacturer: Allen-Bradley / Rockwell Automation
- User Memory: 40 MB
- I/O Memory: 4 MB
- Communication Port: Dual EtherNet/IP (RJ-45), USB Type-B (programming)
- Backplane: ControlLogix 1756 chassis compatible
- Tasks Supported: Continuous, periodic, event (up to 100 tasks)
- Motion Axes: Up to 256 axes (with 1756-M02AE or compatible motion modules)
- Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F)
- Power Supply: Supplied via 1756 chassis backplane (requires 1756-PA72 or 1756-PB72)
- Firmware: Studio 5000 Logix Designer compatible (v32+)
- Weight: Approx. 400 g
- Certifications: UL, CE, RCM, ATEX (Zone 2), IECEx
Why Engineers Specify This Model
- 40 MB User Memory – Handles large ladder logic, function block, and structured text programs without memory constraints, ideal for complex multi-axis motion and process control.
- Dual EtherNet/IP Ports – Enables Device Level Ring (DLR) topology for network redundancy without additional switches, reducing single points of failure.
- Integrated Motion & Process Control – Single controller manages both discrete I/O and servo motion axes, eliminating the need for separate motion controllers.
- CIP Security Support – Built-in cybersecurity features align with IEC 62443 and NIST frameworks, critical for OT network protection.
- Scalable Architecture – Slots into any 1756 chassis (4, 7, 10, 13, or 17-slot) and integrates seamlessly with existing ControlLogix infrastructure.
- High-Speed Execution – Sub-millisecond task execution for time-critical process loops and motion profiles.
Complete System Bill of Materials
A typical 1756-L85E control panel build requires the following components:
- 1756-L85E – ControlLogix 5580 Controller (this item)
- 1756-A10 – 10-Slot ControlLogix Chassis
- 1756-PA72 – 120/240 VAC Power Supply
- 1756-EN2T – EtherNet/IP Communication Module (if additional ports needed)
- 1756-IB16 – 16-Point 24 VDC Digital Input Module
- 1756-OB16E – 16-Point 24 VDC Digital Output Module (electronically fused)
- 1756-IF8 – 8-Channel Analog Input Module
- 1756-OF8 – 8-Channel Analog Output Module
- 1756-M02AE – 2-Axis Servo Drive Interface (for motion applications)
- 1756-EWEB – EtherNet/IP Web Server Module (optional, for remote HMI)
Compliance & Industry Standards
- UL 508 – Industrial Control Equipment
- IEC 61131-3 – PLC Programming Languages Standard
- IEC 62443 – Industrial Cybersecurity (CIP Security)
- ATEX Directive 2014/34/EU – Zone 2 Hazardous Location (with appropriate enclosure)
- CE Marking – EU Low Voltage and EMC Directives
- RoHS Compliant – Restriction of Hazardous Substances
- ISO 13849 / IEC 62061 – Functional Safety (when used with GuardLogix safety modules)
Quality Assurance & Sourcing
At Konmask.com, every Allen-Bradley 1756-L85E unit is subject to a rigorous multi-point inspection process before shipment:
- Visual inspection for physical damage, label integrity, and connector condition
- Firmware version verification against Rockwell Automation release notes
- Functional power-on test with Studio 5000 connectivity check
- Anti-static packaging with humidity indicator cards
- Traceability documentation available upon request (batch/lot records)
We source from authorized distributors and verified surplus channels. All units are tested and guaranteed to meet OEM specifications. Counterfeit-free guarantee backed by our sourcing policy.
How to Source This Part
- In Stock: Add to cart and proceed to checkout. Orders placed before 3:00 PM CST ship same business day.
- Lead Time Orders: Contact us for volume pricing, project-based procurement, and scheduled delivery.
- Repair & Exchange: We offer exchange programs for failed 1756-L85E units — contact support for details.
- Email: support@konmask.com
- Phone / WhatsApp: +0086 19859288691
- Website: https://konmask.com
Application-Specific FAQ
Q: Can the 1756-L85E replace a 1756-L84E in an existing system?
A: Yes. The 1756-L85E is backward compatible with 1756-L84E programs. Simply restore your project backup via Studio 5000 after swapping the controller. Verify firmware compatibility before going live.
Q: Does the 1756-L85E support redundancy?
A: Yes, when paired with a second 1756-L85E and the 1756-RM2 redundancy module in a redundant chassis pair, it supports ControlLogix Enhanced Redundancy (SER B).
Q: What is the maximum number of I/O points supported?
A: The 1756-L85E supports up to 128,000 I/O points across local and remote chassis via EtherNet/IP and ControlNet networks.
Q: Is this controller suitable for SIL 2 safety applications?
A: The standard 1756-L85E is not SIL-rated. For functional safety, use the GuardLogix 5580 (1756-L8xGS) series, which shares the same chassis and integrates with the 1756-L85E in a standard/safety controller pair.
Q: What programming software is required?
A: Studio 5000 Logix Designer v32.0 or later is required. RSLogix 5000 (legacy) is not compatible with the 5580 series.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
