Overview
The Allen-Bradley 2711-T5A8L1 Series B is a compact touchscreen operator interface panel designed for industrial automation and process control applications. As part of the PanelView 550 Standard terminal family, this 2711-T5A8L1 provides engineers and maintenance technicians with a reliable human-machine interface (HMI) for real-time system monitoring and equipment control. The unit combines proven touchscreen input technology with robust industrial communications, making it suitable for manufacturing, process automation, and motion control environments.
Key Features
- 5.5-inch Monochrome Touchscreen Display — Monochrome, 5.5-inch display functioning as Human Machine Interface (HMI) device, with 128 touch-sensitive cells arranged in 24 columns × 18 rows for precise operator input control.
- Dual Communication Ports — One (1) Data Highway Plus (DH+) and one (1) RS232 port used for communication with an alarm printer, supporting multi-node DH+ networks over long distances.
- Built-in HMI Objects — Equipped with built-in graphic libraries, alarm, trend, and recipe objects while also supporting the configuration of HMI security.
- Industrial-Grade Design — Equipped with a sealing gasket that seals the front part of a terminal to an enclosure or panel. The terminal is manufactured in accordance with industrial regulations and it meets standards such as the EN50081-2:1993, EN61000-6-2:1999, EN61131 2:1995, UL508, UL2279, and CSA 22.2 standards.
Technical Specifications
- Input Supply Voltage: 18-32 VDC
- Display: 5.5-inch monochrome
- Primary Communication: Data Highway Plus (DH+)
- Secondary Communication: RS232 port
- Touch Input: Analog resistive touchscreen (stylus or finger operated)
- Memory: Built memory of 112Kbytes for Series A to D
- Expandable Storage: Expandable using ATA memory cards with memory size ranging from 256Kbytes to 32MB memory
- Certifications: EN50081-2:1993, EN61000-6-2:1999, EN61131 2:1995, UL508, UL2279, CSA 22.2
- Series: PanelView Standard Operator terminals
Typical Applications
The 2711-T5A8L1 is well-suited for applications requiring real-time operator interaction with industrial control systems. Typical installations include manufacturing lines, batch process operations, machine motion control, alarm and event monitoring, production dashboards, and facility-wide HMI integration over DH+ networks. The touchscreen interface allows technicians to adjust set points, acknowledge alarms, view trend data, and manage recipes without additional input devices.
Compatibility & Replacements
Compatible With
- PLC and SLC controllers over DH+ network
- Data Highway Plus (DH+) industrial networks
- Allen-Bradley communication modules and peripherals
- Standard industrial DH+ cables (Belden 9463, Allen-Bradley 1771-CD)
- RS-232 serial devices (printers, external interfaces)
Replaces / Drop-In Replacement For
- Earlier Series A, Series C versions of the PanelView 550 2711-T5A8L1 platform
- Legacy Allen-Bradley monochrome touchscreen terminals in similar form factor
Works With
- RSView32 and RSView ME for runtime and development
- PanelView Standard engineering tools and project files
- Data Highway Plus (DH+) communication protocol
- DH-485 serial communication protocols
- Standard industrial automation frameworks supporting DH+ and RS-232
















