The Allen-Bradley 2711-K5A12L2 is a PanelView 550 operator terminal engineered for reliable human-machine interface (HMI) performance in demanding industrial environments. Featuring a robust stainless steel bezel, this unit is designed to withstand corrosive conditions and physical wear, making it suitable for petrochemical, wastewater, and marine applications. The terminal provides clear data visualization via a 5.5-inch monochrome blue-mode LCD and includes a tactile mechanical keypad for precise input in high-vibration areas or when operators are wearing protective gear.

Features

• 5.5-inch high-contrast blue monochrome LCD display.
• Tactile mechanical keypad with function keys (F1-F10) and numeric matrix.
• Integrated PROFIBUS communication port for high-speed fieldbus connectivity.
• Dedicated RS-232 serial port for printer or auxiliary device integration.
• Stainless steel bezel construction for enhanced durability in harsh environments.
• NEMA 4X and IP66 rated enclosure for protection against dust and water ingress.

Applications

This terminal is designed for local plant telemetry reporting, real-time diagnostic monitoring, and alarm tracking. It allows operators to interface directly with programmable logic controllers (PLCs) to manage process variables and respond to system faults in real-time.

Technical Specifications

Installation Guidelines

• Ensure the terminal is mounted in a panel cutout that meets the specified dimensions to maintain the NEMA 4X/IP66 seal.
• Verify that the power source is within the 100-240 VAC range before connection.
• Use shielded communication cables for the PROFIBUS and RS-232 ports to minimize electromagnetic interference (EMI).
• Maintain proper grounding of the chassis to the cabinet ground bus to ensure electrical safety and noise immunity.
• Power down the unit before performing any wiring or maintenance tasks.
• Ensure adequate ventilation around the rear of the unit to prevent overheating during operation.

FAQ

Is this terminal suitable for outdoor use?

No, the 2711-K5A12L2 is rated for indoor use only, despite its NEMA 4X enclosure rating.

Can this unit connect to a printer?

Yes, the terminal features an auxiliary RS-232 serial port specifically designed for printer connectivity to generate hardcopy diagnostic and alarm logs.