Product Details
Module Overview
The 2711-T5A16L1 is a legacy high-performance Human Machine Interface (HMI) from the Allen-Bradley PanelView 550 Standard series. Featuring a 5.5-inch monochrome blue-mode LCD, this terminal is designed for localized machine control where simple, reliable operator input is required. It utilizes a resistive touchscreen interface, allowing operators to interact directly with on-screen graphics to trigger PLC logic. Equipped with an RS-232 (DF1) port, the 2711-T5A16L1 provides a direct point-to-point connection to MicroLogix, SLC 500, and ControlLogix controllers, making it a staple in vintage automation systems and long-term maintenance applications.
Detailed Engineering Specifications
The 2711-T5A16L1 is a DC-powered unit engineered for longevity, boasting a 100,000-hour backlight life.
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Display Type: Monochrome LCD (Blue Mode)
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Display Size: 5.5 inches (120 x 60 mm / 4.75 x 2.38 in.)
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Resolution: 256 x 128 Pixels
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Input Type: Analog Resistive Touchscreen
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Touch Cells: 128 (16 Columns x 8 Rows)
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Touch Cell Size: 26 x 30 Pixels
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Backlight: Integrated LED (100,000-hour service life)
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Application Memory: 170 KB Runtime / 240 KB Non-volatile RAM
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Communication Ports: * RS-232 (DF1) for Controller Communication
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RS-232 for Printer/Application Download
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Input Power: 24V DC (Range: 18–30V DC)
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Heat Dissipation: 20 Watts (69 BTU/HR)
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Operating Temperature: 0°C to 55°C (32°F to 131°F)
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Enclosure Rating: NEMA Type 12/13, 4X (Indoor use only)
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Physical Weight: 2.00 lbs (0.91 kg)
Communication and Software Integration
This terminal uses the DF1 protocol for communication, a robust serial standard for Rockwell Automation hardware. For successful integration, the 2711-NC13 communication cable is typically required to link the HMI to the processor's serial port. Configuration and screen design are managed via PanelBuilder32 software. While this software is legacy, it allows for the creation of intricate tag-based screens, alarm management, and real-time data trending.
Installation and Mechanical Reliability
The 2711-T5A16L1 is built for industrial durability. Its front panel is rated for NEMA 4X environments, meaning it can withstand "wash-down" conditions when properly installed in a sealed enclosure. The unit is secured using functional mounting clips that compress a high-quality gasket against the panel cutout, ensuring an airtight and dust-tight seal.
Technical FAQ
Can I upgrade the memory on the 2711-T5A16L1?
No. The internal application memory is fixed. However, you can use ATA Flash memory cards to transfer applications or store log data, provided they are formatted for use with the PanelView Standard system.
Is the backlight replaceable?
On the 2711-T5A16L1, the LED backlight is integrated. With a 100,000-hour rating, it is designed to last the entire life of the terminal. If the screen goes dark, it often indicates a failure of the internal power inverter rather than the LED itself.
How do I download a program if I don't have a DF1 port on my PC?
You will need a high-quality USB-to-RS232 converter (such as the 1747-UIC or a similar industrial-grade adapter) to communicate between a modern laptop running PanelBuilder32 and the HMI's RS-232 port.
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
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.