Product Details
Product Overview
The Allen Bradley 2711-T5A8L1 functions as a high-performance Human Machine Interface (HMI) within the PanelView Standard 550 series. This unit facilitates seamless operator interaction with PLC systems using a durable 5.5-inch monochrome LCD. It provides a reliable interface for monitoring and controlling industrial automation processes, even in legacy environments. We supply this unit as 100% Brand New and Original, ensuring peak performance and longevity for your critical infrastructure.
Technical Specifications
The following table outlines the essential hardware parameters for the 2711-T5A8L1:
| Feature | Specification |
| Manufacturer | Allen Bradley |
| Series | PanelView 550 |
| Display Type | Monochrome LCD (Blue Mode) |
| Display Size | 5.5-inch (120 x 60 mm) |
| Resolution | 256 x 128 pixels |
| Input Type | Touchscreen (128 touch pixels) |
| Communication | DH+ (Data Highway Plus) & RS-232 Printer Port |
| Input Voltage | 24V DC (18-32 VDC range) |
| Application Memory | 170 KB - 240 KB (Series dependent) |
| Operating Temp | 0 to 55 °C (32 to 131 °F) |
| Backlight Life | Replaceable (Part No. 2711-NL1) |
Engineering Advantages
The 2711-T5A8L1 addresses specific industrial challenges through its rugged design and specialized communication protocols:
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Legacy Integration via DH+: This terminal integrates directly into existing Data Highway Plus networks. It eliminates the need for expensive protocol converters when maintaining older PLC-5 or SLC 500 systems.
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Space-Efficient Footprint: The compact 5.5-inch display allows engineers to install powerful HMI functionality in cramped control panels where larger screens cannot fit.
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Touch-Responsive Interface: The 128-pixel touch grid provides tactile feedback and eliminates the need for external keyboards, reducing failure points in dusty or oily environments.
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Thermal Resilience: The hardware dissipates 29W of heat efficiently, maintaining stable operation in ambient temperatures up to 55°C without requiring dedicated cooling fans.
FAQs
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Does this unit come with a warranty and is it truly new?
Yes. We provide this 2711-T5A8L1 as a 100% brand new, original factory unit. It includes our standard industrial warranty to ensure your facility avoids the risks associated with refurbished or used surplus.
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Can I replace a keypad-only PanelView with this touchscreen model?
Transitioning from a keypad to a touchscreen (2711-T series) requires a physical cutout change in your panel door. Additionally, you must update the application file in PanelBuilder32 software to convert keypad objects into touch-sensitive objects.
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What should I check if the backlight fails?
If the screen appears dark but the unit is powered, the 2711-NL1 backlight lamp has likely reached its end of life. You can replace this component separately without replacing the entire HMI, significantly reducing maintenance costs.
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Which cable do I need for DH+ communication?
Standard installations utilize the 2711-NC13 communication cable for reliable data transfer. Ensure you maintain proper shielding to prevent electromagnetic interference (EMI) from high-voltage motor drives nearby.
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
PLC vs. HMI: Distinguishing the Brain from the Interface in Industrial Automation
In the realm of industrial automation, distinguishing between a Programmable Logic Controller (PLC) and a Human-Machine Interface (HMI) is fundamental. While both devices work in tandem, they serve distinct purposes. The PLC acts as the "brain" of the operation, executing logic, whereas the HMI serves as the "eyes," allowing operators to monitor and interact with the system. Understanding this synergy is essential for any professional designing robust factory automation solutions.
Selecting the Right Industrial Automation Solution for Modern Manufacturing
Choosing an effective industrial automation system starts with a thorough process audit. You must identify tasks that are repetitive, labor-intensive, or prone to human error. Not every process requires high-level automation; therefore, prioritize operations that directly impact throughput and quality. By scoping your needs accurately, you avoid over-investing in unnecessary technology. A balanced approach ensures that your capital expenditure aligns with measurable gains in operational efficiency.
Implementing FIFO and LIFO Data Sequencing in PLC Programming
Data management serves as a cornerstone of modern industrial automation. Whether tracking materials on a conveyor or managing batch sequences in a process, engineers frequently rely on sequential logic. Two primary structures—First-In-First-Out (FIFO) and Last-In-First-Out (LIFO)—form the bedrock of this data handling. Mastering these blocks allows programmers to optimize complex machine operations efficiently.