Product Details
Product Overview
The Allen Bradley 2711-B5A2 functions as a versatile operator interface within the PanelView 550 Standard series. This specific model provides a rare dual-input configuration, combining a tactile keypad with an analog resistive touchscreen to maximize operator flexibility in diverse plant environments. It utilizes a 120 x 60 mm blue monochrome LCD to render clear process graphics and text. Equipped with a native DH-485 communication port, the 2711-B5A2 integrates directly with SLC 500 and MicroLogix controller networks, serving as a critical bridge for legacy system monitoring and machine-level control.
Technical Specifications
| Feature | Detailed Specification |
| Manufacturer | Allen Bradley / Rockwell Automation |
| Part Number | 2711-B5A2 |
| Display Type | Blue Monochrome LCD |
| Display Area | 120 x 60 mm (4.75 x 2.38 in.) |
| Input Type | Dual Input (Keypad and Touchscreen) |
| Resolution | 256 x 128 Pixels |
| Touch Cells | 128 Cells (8 rows x 16 columns) |
| Communication | DH-485 Port |
| Supply Voltage | 85–264V AC (47–63 Hz) |
| Power Consumption | 45 VA (Maximum) |
| UPC | 662468332682 |
| Condition | 100% Brand New Original |
Engineering Advantages
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Dual-Mode Input Redundancy: The 2711-B5A2 features both a functional keypad and a touchscreen. This design solves the common industrial problem of touchscreen degradation in oily or grimy environments; operators maintain full machine control via the tactile keypad even if the screen surface becomes obstructed or worn.
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High-Granularity Touch Matrix: The display integrates 128 individual touch cells arranged in an 8x16 grid. This high density prevents "fat-finger" errors and ensures that the HMI accurately registers command inputs for high-precision process adjustments.
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Universal AC Power Compatibility: The internal power supply handles a wide voltage swing from 85V to 264V AC. This allows engineers to deploy the unit globally without needing separate step-down transformers, simplifying international machine exports and domestic facility upgrades.
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Instant Diagnostic Feedback: Two dedicated LED indicators provide immediate hardware status. The green COMM LED verifies active network traffic, while the red fault LED alerts maintenance teams to internal hardware issues, significantly reducing mean time to repair (MTTR).
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Rugged Monochrome Clarity: The high-contrast monochrome display maintains readability under harsh overhead factory lighting. Unlike some color screens that wash out in high-glare environments, the 2711-B5A2 provides consistent visibility for critical alarm monitoring.
FAQs
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Is the 2711-B5A2 supplied as Brand New?
Yes. We supply this terminal as 100% Brand New in its original factory-sealed packaging. This guarantees the maximum lifespan for the internal backlight and the integrity of the touchscreen membrane.
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Can I use this model to replace a 2711-K5A2 or 2711-T5A2?
Yes. The 2711-B5A2 (Dual Input) serves as a superior replacement for the 2711-K5A2 (Keypad only) or 2711-T5A2 (Touch only) models, provided the panel cutout dimensions match. It offers the same DH-485 connectivity while adding extra input flexibility.
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What communication cable does this unit require?
The 2711-B5A2 typically connects to an SLC 500 or MicroLogix controller via a 1747-C10, 1747-C11, or 1747-C20 DH-485 cable. Always verify your controller's port type (RJ45 or 25-pin) before selecting the cable.
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Does this terminal require a separate memory card?
The 2711-B5A2 contains internal non-volatile memory for application runtime. However, it supports external ATA memory cards for project backups or firmware transfers, which we recommend for rapid disaster recovery.
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
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.