وصف
Description
The Allen-Bradley 2711-B5A2X is a high-performance operator terminal belonging to the PanelView 550 Standard series. This human-machine interface (HMI) module is engineered for industrial process monitoring, real-time diagnostics, and manual control command execution. By facilitating seamless data exchange with programmable logic controllers (PLCs), it serves as a critical interface for operators in demanding environments such as chemical processing, petroleum refining, food packaging, and water treatment facilities. The unit is designed to minimize system downtime by providing a reliable, ruggedized physical interface for complex automation tasks.
Features
- Hybrid Input Interface: Combines a resistive touchscreen with a 10-key function matrix (F1-F10) and an integrated numeric keypad for versatile operation, including high-vibration scenarios.
- Visual Display: Features a 5.5-inch monochrome LCD screen with a 256 x 128 pixel resolution for clear process visualization.
- Communication Connectivity: Equipped with a dedicated DH-485 serial port, supporting token-passing network structures for robust point-to-point or multi-node communication with SLC 500 and MicroLogix controllers.
- Rugged Construction: Built to withstand harsh industrial conditions with high-integrity ingress protection, ensuring resistance against dust and liquid contamination.
Applications
The 2711-B5A2X is suitable for a wide range of industrial automation applications, including:
- Petroleum and chemical processing plants
- Food and beverage packaging lines
- Water and wastewater treatment utilities
- Manufacturing and assembly line control
Technical Specifications
| Model |
2711-B5A2X |
| Product Line |
PanelView 550 |
| Display Size |
5.5 inches |
| Display Type |
Monochrome LCD |
| Resolution |
256 x 128 Pixels |
| Input Method |
Touchscreen and Keypad |
| Function Keys |
10 Tactical Keys |
| Communication |
DH-485 |
| Operating Temperature |
0 to 55 deg C |
| Storage Temperature |
-20 to 70 deg C |
| Enclosure Rating |
NEMA 12/13, 4X (Indoor), IP54, IP65 |
Installation Guidelines
- Mounting: Ensure the terminal is installed in a panel cutout that meets the manufacturer's specified dimensions to maintain the NEMA/IP seal integrity.
- Grounding: Always connect the chassis ground terminal to a low-impedance earth ground to mitigate EMI and protect against electrical surges.
- Wiring: Use shielded communication cables for the DH-485 port and keep them routed away from high-voltage power lines to prevent signal interference.
- Environment: Ensure adequate ventilation around the unit to maintain operating temperatures within the 0 to 55 deg C range.
- Safety: Power down the system before connecting or disconnecting any communication cables or power supply leads.
FAQ
What communication protocol does the 2711-B5A2X use?
This terminal utilizes the DH-485 communication protocol, which is a token-passing network standard designed for reliable connectivity with Allen-Bradley SLC 500 and MicroLogix controller families.
Can this unit be used in outdoor environments?
The 2711-B5A2X is rated for NEMA 4X indoor use only. It is not designed for direct exposure to outdoor weather conditions or direct sunlight.
