Excellent PLC
Product Introduction
The Allen-Bradley 2711-B5A2L1 PanelView 550 Operator Interface is a compact and reliable human-machine interface (HMI) designed for industrial control applications. As part of the PanelView 550 series, this unit integrates both keypad and touch input, providing flexible operator interaction in demanding environments.
Built with a 5.5-inch monochrome display, the terminal delivers clear visualization of process data, alarms, and system status. Its 256 × 128 pixel resolution is optimized for text-based and simple graphical applications, ensuring fast response and stable operation without unnecessary complexity.
The device communicates via the DH-485 network, making it well-suited for legacy Allen-Bradley PLC systems such as SLC 500 and MicroLogix controllers. Powered by a 24 VDC input, it supports stable performance in typical industrial power systems.
With its rugged construction and proven reliability, the PanelView 550 is widely used in manufacturing, process control, and machine automation where durability and straightforward operation are required.
Product Specifications
| Parameter | Description |
|---|---|
| Product Model | 2711-B5A2L1 |
| Series | PanelView 550 |
| Display Type | Monochrome LCD |
| Display Size | 5.5 inch |
| Resolution | 256 × 128 pixels |
| Input Method | Keypad & Touchscreen |
| Communication Protocol | DH-485 |
| Power Supply | 24 VDC |
| Operating Interface | Operator Terminal (HMI) |
| Mounting Type | Panel Mount |
| Display Color | Monochrome (Black & White) |
| Dimensions | 266 × 106 × 167 mm |
| Weight | 1.2 kg |
Applications
• Machine Automation Systems – Used as a local operator interface for monitoring and controlling automated equipment, allowing operators to start, stop, and adjust machine parameters efficiently.
• Packaging Lines – Provides real-time status display and alarm handling for packaging machinery, improving operational visibility and response speed.
• Process Control Systems – Suitable for small to medium-scale process environments where stable and simple visualization is required.
• Manufacturing Production Lines – Enables operators to interact with PLC-controlled systems, ensuring smooth workflow and reduced downtime.
• Water and Wastewater Treatment – Used for monitoring pump status, valve control, and alarm conditions in utility systems.
• Legacy System Integration – Ideal for upgrading or maintaining older DH-485-based systems without requiring major architecture changes.
Advantages
• Dual Input Flexibility – Combines keypad and touchscreen operation, allowing users to choose the most suitable interaction method based on the environment.
• High Reliability Design – Built for continuous industrial operation, offering stable performance even in harsh conditions.
• Optimized for Legacy Networks – Native support for DH-485 communication ensures seamless integration with existing Allen-Bradley PLC systems.
• Clear and Efficient Display – The monochrome screen enhances readability for text and alarms while reducing power consumption.
• Compact Structure – Space-saving panel design makes it easy to install in control cabinets with limited space.
• Low Power Requirement – Operates on standard 24 VDC, simplifying system power design.
• User-Friendly Configuration – Supports straightforward application development and maintenance, reducing engineering effort.
