Description

The Allen-Bradley 2711-B5A9 is a robust operator terminal belonging to the PanelView 550 Standard series. This HMI unit is designed for reliable process monitoring, alarm management, and control input in demanding industrial settings. By interfacing directly with programmable controllers via serial communication, the 2711-B5A9 enables operators to manage complex machinery through a centralized, durable interface, effectively replacing traditional hard-wired control panels and reducing system downtime.

Features

• Hybrid input system featuring both a resistive touchscreen and a 10-key tactile function keypad (F1-F10) for versatile operation.
• 5.5-inch monochrome blue-mode LCD display with a resolution of 256 x 128 pixels.
• Long-life LED backlight rated for 100,000 hours of continuous operation.
• Integrated RS-232 communication port supporting DH-485 protocol.
• Dedicated RS-232 serial port for local printer connectivity and data logging.
• Dual-memory architecture with 170 KB for application runtime and 240 KB for nonvolatile storage.

Applications

This operator terminal is suitable for a wide range of industrial automation tasks, including automotive manufacturing, chemical processing, water treatment, and food and beverage production. Its rugged design ensures performance in environments where vibration and consistent reliability are critical.

Technical Specifications

Installation Guidelines

• Ensure the unit is mounted in a panel cutout that meets the required clearance for the bezel and gasket seal.
• Verify that the power supply is within the 85-264 VAC range before connection.
• Use shielded communication cables (e.g., 2711-NC13) and route them away from high-voltage lines or high-EMI sources to prevent signal interference.
• Maintain proper ventilation around the unit to ensure the operating temperature remains below 55 deg C.
• Always power down the device before performing maintenance or connecting/disconnecting communication cables.

FAQ

Is this unit still in production? No, the 2711-B5A9 is classified as discontinued/obsolete by the manufacturer.

What communication protocols are supported? This model supports the DH-485 protocol via the integrated RS-232 port.

Can I use a standard printer with this terminal? Yes, the unit includes a dedicated RS-232 printer port for local data logging applications.