Allen Bradley 2711-B5A1L1 PanelView 550 Standard Operator Terminal

Product Overview

The Allen Bradley 2711-B5A1L1 functions as a versatile Human-Machine Interface (HMI) within the PanelView Standard 550 series, specifically designed for legacy industrial networks. This terminal provides dual-mode interaction, combining a physical keypad with an analog resistive touchscreen to give operators maximum flexibility in machine-level control. We supply this unit as 100% Brand New and Factory Original, offering a critical replacement for obsolete infrastructure without the need for expensive software migrations.

Technical Specifications

The 2711-B5A1L1 utilizes a specialized blue-mode monochrome display to provide high-contrast visualization in factory environments:

Engineering Advantages

• Native Remote I/O (RIO) Integration: This terminal connects directly to Allen Bradley PLC-5 or SLC 500 controllers via the blue hose Remote I/O network. It processes block transfers and discrete I/O bits natively, eliminating the need for complex protocol converters or network bridges.

• Dual-Input Operational Redundancy: By offering both a touchscreen and a tactile keypad, the 2711-B5A1L1 solves the common industrial problem of failed touch membranes. If the touchscreen becomes unresponsive due to surface contamination, the operator maintains full machine control via the physical function keys.

• DC Power Stability: The 24V DC power requirement facilitates installation in remote panels or mobile skids where AC power remains unavailable. It draws minimal current, reducing the heat load inside small, non-ventilated enclosures.

• Monochrome High-Contrast Clarity: The blue-mode LCD ensures readability under varied lighting conditions. This display technology avoids the color-washout issues common in older passive-matrix color screens, providing clear status updates for alarm monitoring.

FAQs

• Is this 2711-B5A1L1 unit 100% Brand New?

  Yes. We guarantee this unit is 100% Brand New and ships in its original factory packaging with intact seals. This ensures maximum backlight life and membrane integrity compared to refurbished or used surplus units.

• Can I replace a 2711-B5A1 (AC version) with this 2711-B5A1L1?

  The "L1" suffix indicates 24V DC power. You can replace an AC model only if you provide a dedicated 24V DC power source. The physical dimensions and communication protocols remain identical between the AC and DC versions.

• What software do I need to program this terminal?

  You must use PanelBuilder32 software. Use the RS-232 port or the Remote I/O pass-through feature to download your existing .PVA or .PBP application files to the hardware.

• What mounting precautions should I follow?

  The 2711-B5A1L1 includes a sealing gasket to meet NEMA environmental ratings. Ensure the panel cutout remains within the specified tolerances and tighten the mounting studs evenly to prevent moisture ingress or touchscreen misalignment.