Description

The Allen-Bradley 2711-K5A15L1 is a robust human-machine interface (HMI) terminal designed for field-level machine diagnostics and localized automation process management. Featuring a durable stainless steel bezel, this unit is engineered to withstand harsh industrial conditions, including high humidity and chemical exposure, making it suitable for power generation, mining, and water treatment applications. The terminal utilizes a 5.5-inch blue-mode monochrome LCD and a tactile mechanical keypad for reliable operation in environments subject to vibration.

Features

• 5.5-inch monochrome blue-mode LCD display with 256 x 128 resolution.
• Rugged stainless steel bezel for enhanced environmental protection.
• Tactile mechanical keypad with dedicated function keys (F1-F10) and numeric matrix.
• Integrated ControlNet communication port for deterministic, high-speed network synchronization.
• Dedicated RS-232 serial port for printer connectivity and fault logging.
• 170 KB of application runtime memory for efficient process control.

Applications

This operator terminal is designed for integration into industrial control systems requiring real-time status monitoring, alarm tracking, and parameter adjustment. It is commonly deployed in manufacturing lines, wastewater treatment facilities, and power distribution stations where reliable, localized operator interaction with PLCs is required.

Technical Specifications

Installation Guidelines

• Ensure the terminal is mounted in a panel cutout that provides adequate clearance for the bezel and rear cabling.
• Use shielded communication cables for ControlNet and RS-232 connections to minimize EMI interference.
• Verify that the power supply is within the 18-32 VDC range before applying power to the unit.
• Maintain proper ventilation around the unit to ensure the operating temperature remains below 55 deg C.
• Follow standard ESD precautions when handling the terminal to prevent damage to internal electronic components.
• Ensure the stainless steel bezel is properly grounded to the enclosure to maintain environmental and electrical integrity.

FAQ

Does this unit support color graphics?

No, the 2711-K5A15L1 is equipped with a blue-mode monochrome LCD display designed for high-contrast text and simple graphic representation.

What is the primary communication protocol?

This model features a ControlNet port for high-speed, deterministic communication with Allen-Bradley programmable logic controllers.

Can I connect a printer to this HMI?

Yes, the unit includes an RS-232 serial port specifically intended for hardcopy line printer operations to log system faults and process metrics.