Allen-Bradley 2711-T5A5L1 PanelView 550 Standard Operator Terminal

Product Overview

The Allen-Bradley 2711-T5A5L1 functions as a high-performance Human-Machine Interface (HMI) within the PanelView 550 Standard series. This terminal features a 5.5-inch monochrome blue-mode LCD and utilizes a resistive touchscreen for intuitive machine control. We supply this unit as 100% Brand New and Original, providing a mission-critical replacement for legacy systems requiring the specific RS-232 (DH-485) communication protocol and DC power input.

Technical Specifications

Engineering Advantages

• Optimized DH-485 Networking: The 2711-T5A5L1 utilizes a dedicated RS-232 port configured for the DH-485 protocol. This allows direct integration with SLC 500 and MicroLogix controllers via the 2711-NC13 cable, ensuring high-speed data exchange without the need for external protocol converters.

• Long-Life LED Backlighting: The integrated LED backlight provides 100,000 hours of operational life. This eliminates the frequent maintenance cycles associated with older CCFL lamps and ensures display readability in varied factory lighting conditions.

• Robust Touch Grid Configuration: The touchscreen interface employs a 128-cell touch matrix. This design ensures accurate command input even when operators wear industrial gloves, preventing accidental triggers and improving overall shop-floor safety.

• Nonvolatile Data Security: The unit incorporates 240 KB of nonvolatile RAM to store application objects, bitmaps, and text. This hardware protects your HMI project data against power loss, eliminating the need for constant re-loading of the application during power cycles.

• Compact Industrial Footprint: The 2711-T5A5L1 fits into standard panel cutouts, facilitating easy upgrades from older PanelView models. Its DC-powered architecture simplifies wiring in modern control cabinets that have moved away from high-voltage AC control circuits.

FAQs

• Can I use a standard serial cable for communication?

  No. You must use the 2711-NC13 communication cable or an equivalent proprietary cable to connect the RS-232 (DH-485) port to your controller. Standard RS-232 null-modem cables do not support the specific pinout required for DH-485 communication.

• Does this unit support color graphics?

  No. The 2711-T5A5L1 features a monochrome blue-mode LCD. It displays information in high-contrast blue and white, which provides excellent visibility in high-glare environments where color screens often wash out.

• How do I transfer my old application to this new unit?

  Use PanelBuilder32 software to download your existing project files. Since we provide this unit as Brand New, ensure your software version supports the hardware series (Series A through H) to maintain full feature compatibility.

• Is the touchscreen field-replaceable?

  The 2711-T5A5L1 features an integrated touchscreen and display assembly. While the backlight is replaceable, we recommend replacing the entire unit with our original stock if the touch matrix suffers physical damage to maintain the NEMA seal integrity.