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- Allen Bradley
- 2711-B5A5
- PanelView 550 Operator Interface
- USA
- 266 x 106 x 167 mm
- 1.2 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Allen-Bradley 2711-B5A5 is a PanelView 550 Standard Operator Terminal used as an industrial HMI (Human-Machine Interface). It provides operators with a local interface to monitor and control PLC-driven processes in legacy automation systems.
This model belongs to the PanelView Standard 550 series, commonly used in older Rockwell Automation installations and still widely found in existing industrial machinery.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Model | 2711-B5A5 |
| Product Series | PanelView 550 Standard |
| Display | 5.5-inch monochrome LCD (blue mode) |
| Resolution | 256 × 128 pixels |
| Input Type | Touchscreen + keypad (F1–F10 function keys) |
| Communication | DH-485 / RS-232 (DF1) |
| Power Supply | 85–264 V AC, 47–63 Hz |
| Memory | ~170 KB application runtime memory |
| Function | Machine monitoring and operator control |
| Weight | ~1.2 kg |
| Dimensions | 266 × 106 × 167 mm |
Function and Working Principle
The 2711-B5A5 acts as a local operator interface between users and PLC systems. It works by:
- Displaying real-time process and machine data from PLCs
- Accepting operator inputs via touchscreen and function keys
- Sending control commands back to the PLC system
- Running applications created using PanelBuilder32 software
It communicates using DH-485 or DF1 serial protocols, typical of legacy Allen-Bradley architectures.
Role in Industrial Systems
This HMI is used for:
- Machine visualization and control
- Alarm and fault display
- Operator interaction with PLC systems
- Basic process parameter adjustment
It is still commonly found in long-life industrial equipment where upgrades have not yet been implemented.
Industrial Applications
- Conveyor systems
- Packaging machinery
- Pump and motor control systems
- Material handling equipment
- Legacy manufacturing lines
Installation Notes
- Panel-mounted installation in electrical cabinet doors
- Requires 85–264 V AC power supply
- Uses RS-232 / DH-485 communication wiring
- Programming requires legacy PanelBuilder32 software
- Communication settings must match PLC network configuration
Compatible Equipment
- Allen-Bradley SLC 500 PLC systems
- PLC-5 controllers (via DH-485 or RIO systems with adapters)
- MicroLogix controllers (serial DF1 communication)
- Legacy Rockwell automation systems
Key Advantages
- Simple and reliable operator interface
- Rugged industrial design for harsh environments
- Proven long-term operational stability
- Supports both keypad and touchscreen input
- Well-suited for legacy PLC infrastructure
Limitations
- Obsolete / discontinued product
- No Ethernet communication support
- Limited graphics and memory capability
- Requires legacy configuration tools (PanelBuilder32)
- Increasingly replaced by PanelView Plus series
Replacement Options
| Model | Type | Application |
|---|---|---|
| PanelView Plus 7 | Modern HMI | Ethernet-based upgrade |
| PanelView 800 | Compact HMI | Small machine control |
| PanelView 5500 | Advanced HMI | ControlLogix systems |
Conclusion
The Allen-Bradley 2711-B5A5 PanelView 550 is a legacy industrial HMI designed for machine control and monitoring in DH-485/DF1-based automation systems.
Although it is discontinued, it remains widely installed in industrial environments due to its reliability and long service life in existing automation systems.