Overview
The Allen-Bradley 2711-K5A20 is a PanelView 550 Standard Operator Terminal designed for process monitoring and machine control in industrial automation environments. This operator terminal operates when supplied by an external supply voltage range of 85-264 Volts AC, 47-63 Hertz. It has a 5.5-inch monochrome display screen with a keypad input interface. The Allen Bradley 2711-K5A20 has been discontinued by the manufacturer, however surplus and/or refurbished replacement units are available.
Key Features
- Embedded Ethernet communication interface and RS-232 printer communication port
- Ten function keys (F1 to F10), cursor key, and numeric keypad for direct operator control
- 5.5-inch liquid crystal display (LCD) in blue-mode monochrome; screen dimensions 4.75 × 2.38 inches
- Internal LED backlight with 100,000-hour shelf life; replacement part number 2711-NL1
- ATA memory card slot for application storage and updates
- Field-replaceable battery with real-time clock for data timestamping
Technical Specifications
| Input Voltage | 85–264 Volts AC, 47–63 Hertz |
| Display Type | 5.5-inch monochrome LCD keypad interface |
| Display Resolution | 256 × 128 pixels |
| Display Dimensions | 4.75 × 2.38 inches (120 × 60 mm) |
| Function Keys | F1–F10 with cursor and numeric keypad |
| Communication Ports | EtherNet/IP and RS-232 printer |
| Memory (Runtime) | 170 KB |
| Memory (Nonvolatile) | 240 KB |
| Backlight | LED, 100,000-hour life; part 2711-NL1 |
| Battery | Field-replaceable; supports real-time clock |
| Dimensions | 14 × 11 × 8 inches (355.6 × 279.4 × 203.2 mm) |
| Weight | Approximately 6 pounds (2.7 kg) |
| Series | PanelView 550 (supports Series A–H) |
| Certifications | CSA, UL, Class 1 Div 2 (Groups A, B, C, D, T4) |
Typical Applications
- Manufacturing equipment control and monitoring via Ethernet or legacy DH-485 networks
- Food and beverage, pharmaceutical, and packaging machine interfaces
- Water treatment and utilities process visualization and operator input
- OEM machine builders requiring compact, ruggedized HMI panels
- Retrofit installations where legacy PanelView 550 terminals require replacement
Compatibility & Replacements
The 2711-K5A20 is an Ethernet-based PanelView Standard operator terminal compatible with CompactLogix, ControlLogix, SLC, and MicroLogix controllers via EtherNet/IP or legacy DH-485 networks. PanelView 550 Series H terminals operate in combination with PLC and SLC controllers over DH-485, DH+, EtherNet/IP, ControlNet, or DeviceNet networks. Programming is performed using PanelBuilder32 software with RSLinx connectivity. Related models include the 2711-K5A2 (DH-485 communication variant) and 2711-B5A20 (combined keypad and touchscreen model). For replacement backlight assemblies, order part 2711-NL1.
