2711-B5A2 PanelView 550 Monochrome Interface Terminal | Allen Bradley

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

Engineering Advantages

• 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.

• 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.

• 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.

• 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).

• 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

• 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.

• 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.

• 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.

• 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.