The Allen-Bradley 2711-B5A5 is a PanelView 550 operator terminal designed for high-performance human-machine interface (HMI) applications. This AC-powered control module facilitates real-time process monitoring, industrial alarm data management, and manual input command execution within automated systems. Engineered for continuous operation in demanding industrial environments, including oil and gas, chemical processing, and water management, this terminal replaces complex physical pushbutton arrays with an integrated electronic interface, helping to reduce unscheduled downtime and improve operational efficiency.

Features

• Hybrid input interface featuring both an analog resistive touchscreen and a 10-key mechanical function keypad (F1 to F10) for reliable operation in high-vibration environments.
• 5.5-inch monochrome blue-mode LCD display with 256 x 128 pixel resolution and a long-life 100,000-hour LED backlight.
• Integrated RS-232 communication port supporting DH-485 and DF1 protocols for controller communication and data logging.
• Dual-allocation memory architecture with 170 KB for application runtime and 240 KB for nonvolatile storage.
• Touchscreen grid rated for 1 million press actuations across 128 active cells.

Applications

The 2711-B5A5 is suitable for diverse industrial automation tasks, including:

• Automated packaging and assembly lines.
• Chemical and petrochemical manufacturing process control.
• Water and wastewater management infrastructure.
• General-purpose machine monitoring and operator control.

Technical Specifications

Installation Guidelines

• Ensure the terminal is mounted in a suitable NEMA-rated enclosure to maintain environmental protection ratings.
• Verify that the power supply meets the 85-264 VAC requirement; ensure proper grounding to the chassis to prevent electrical noise interference.
• Use shielded communication cables (such as the 2711-NC13) and route them away from high-voltage power lines to minimize EMI.
• Power down the system before connecting or disconnecting any communication cables or power leads.
• Maintain adequate clearance around the unit to ensure proper ventilation and prevent overheating during operation.

FAQ

Is the 2711-B5A5 still in production?
No, this model is classified as discontinued/obsolete by the manufacturer. We provide high-quality surplus units to support legacy system maintenance.

What communication protocols are supported?
The unit features an RS-232 port that supports DH-485 and DF1 protocols for connectivity with Allen-Bradley controllers.

Can I use this terminal in high-vibration areas?
Yes, the hybrid design includes 10 mechanical function keys, which provide a reliable input method when touchscreen operation is difficult due to vibration.