Overview
The Allen-Bradley 2711-T9A8X is a monochrome operator terminal from the PanelView 900 series, designed to provide reliable human-machine interface (HMI) capabilities for industrial automation applications. Although discontinued, the 2711-T9A8X remains a dependable choice for engineers maintaining legacy control systems or integrating into networks that support Data Highway Plus (DH+) communication protocols.
Key Features
- 9-inch monochrome touchscreen display with 640 x 480 VGA resolution
- Integrated Data Highway Plus (DH+) communication port for seamless PLC connectivity
- RS-232 printer port for alarm and event logging
- Touchscreen interface with 384 touch cells for reliable operator input
- Battery-backed real-time clock (RTC) for timestamp and scheduling functions
- Field-replaceable backlight module minimizes maintenance downtime
Technical Specifications
- Display Type: Monochrome LCD, 9-inch diagonal
- Resolution: 640 × 480 pixels (VGA)
- Display Area: 6.73 × 5.12 inches
- Touch Interface: Resistive touchscreen, 384 touch cells
- Input Voltage: 85–264 VAC
- Nominal Voltage: 100–240 VAC
- Frequency: 47–63 Hz
- Power Consumption: 110 VA
- Communication Ports: DH+ (Data Highway Plus), RS-232 printer
- Operating Temperature: 0–55°C (32–131°F)
- Storage Temperature: −25–70°C (−13–158°F)
- Memory: 240 KB application memory, 768 KB bitmap and text storage
- Dimensions: 16 × 14 × 8 inches
- Weight: 8 lbs
- Series: PanelView 900
Typical Applications
- Legacy system upgrades and replacements in existing DH+ networks
- Machine monitoring and process visualization in manufacturing environments
- Remote control and diagnostics for pumps, compressors, and HVAC systems
- Batch process management and data logging for quality assurance
- Multi-controller environments requiring network communication across facility floors
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 500 programmable logic controllers
- Allen-Bradley MicroLogix controllers
- Data Highway Plus (DH+) network architecture
- PanelBuilder 900 engineering software
- Rockwell Automation legacy control systems
- Multi-controller DH+ networks with point-to-point and networked topologies
Replaces / Drop-In Replacement For
- 2711-T9A1 (with firmware adjustments for DH+ vs. RIO protocols)
- 2711-T9A2 (color vs. monochrome trade-off)
- Other PanelView 900 monochrome 9-inch terminals in Series F configuration
Works With
- PanelBuilder 900 configuration and engineering software
- Data Highway Plus (DH+) communication protocol
- RS-232 serial communication for printer integration and diagnostics
- Rockwell Automation CompactLogix, ControlLogix, and legacy platforms via network gateways
- Real-time scheduling and timestamp functions via battery-backed RTC
