Product Details
Overview
The Allen-Bradley 2711-B5A5 is a PanelView 550 standard operator terminal with a monochrome LCD in blue mode. It is designed to provide reliable operator interface capabilities for SLC and PLC systems, enabling display, input, and control of machine and process data. The terminal supports both keypad and touch input for flexible operation. Although now discontinued, it remains a robust choice for legacy applications.
Key Features
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5.5-inch monochrome LCD display with blue mode
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Touchscreen with 128 touch cells, rated for 1 million presses
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10 function keys (F1–F10) for direct operator input
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Application memory: 170 KB runtime memory, 240 KB non-volatile storage for objects, text, and bitmaps
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Dual communication support via DH485 and RS-232 (DF1)
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LED backlight with a rated life of 100,000 hours
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Input voltage range: 85–264V AC, 47–63 Hz
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Accessories: function key legend inserts, anti-glare overlays, backlight replacements, real-time clock replacements, mounting hardware, interface modules, and power supply components
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: PanelView 550
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Part Number: 2711-B5A5
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Weight: 2.50 lbs (1.13 kg)
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Display Type: Monochrome LCD (blue mode)
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Display Area: 120 x 60 mm (4.75 x 2.38 in)
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Resolution: 256 x 128
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Touchscreen: 128 cells, 1 million actuations
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Keypad: 10 function keys
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Memory: 170 KB runtime, 240 KB non-volatile
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Communication Ports: DH485, RS-232 (DF1)
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Input Voltage: 120V AC (operating 85–264V AC, 47–63 Hz)
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Series Compatibility: A–H
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Product Lifecycle Status: Discontinued
Application Scenarios
The 2711-B5A5 terminal is suited for:
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Displaying and controlling process variables in legacy PLC systems
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Operator interfaces for assembly lines, packaging, and material handling
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Integration with PLCs requiring monochrome or simple graphical displays
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Applications where a compact 5.5-inch display is sufficient
FAQs
Q: Can this terminal connect to modern PLC systems?
A: It is compatible with PLCs that support DH485 or RS-232 DF1 protocols, primarily older SLC and PLC-5 systems.
Q: How durable is the touchscreen?
A: The touch interface supports up to 1 million actuations and is designed for industrial environments.
Q: Are replacement parts available for discontinued models?
A: Accessories like function key legends, backlight replacements, and interface modules are still available from authorized distributors.
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.
Tech & Buying Guide
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.