Allen-Bradley 2711-T9A5 PanelView Standard Operator Terminal

The Allen-Bradley 2711-T9A5, also cataloged as the 2711T9A5 operator interface, operates as a dedicated hardware component for touch-screen process visualization, operator data entry, and industrial control network communication within PanelView Standard platforms.

Suffix Breakdown & Model Matrix

• 2711: Base product family identifier designating Allen-Bradley PanelView Standard operator terminals.
• T: Operator input interface type featuring an analog resistive touch screen display configuration.
• 9: Display size classification corresponding to a 9-inch viewing area.
• A: Monochrome display technology supporting high-contrast grayscale graphical visualization.
• 5: Communication protocol architecture incorporating RS-232 operating with DH-485 protocol logic.

Hardware Specifications

Allen-Bradley Industrial Control and Bus Synchronization

The 2711-T9A5 terminal is engineered to interface directly with SLC 500, MicroLogix, and PLC-5 controllers via its built-in RS-232 port operating with DH-485 protocol logic. Designed to execute point-to-point and token-passing data frame exchanges across industrial serial networks, the internal hardware architecture maintains backplane bus communication velocity and real-time tag synchronization with host processors. Channel-to-channel isolation and integrated surge suppression prevent ground loop electrical noise from corrupting screen touch registers or memory data blocks during continuous plant operations.

Frequently Asked Questions

Q: Can the RS-232 (DH-485) port on the 2711-T9A5 be connected directly to a standard PC serial port for configuration transfer?

A: Direct connection requires an isolated line converter (such as a 1747-PIC or 1761-NET-AIC module) or proper RS-232 signal handshaking cable configuration to match the voltage levels and token-passing timing requirements of the DH-485 protocol stack.

Q: What power source is required to energize the 2711-T9A5 terminal?

A: The terminal incorporates an internal universal AC power supply requiring an input voltage of 100 to 240 VAC at 50/60 Hz. Connecting DC power to this terminal will cause internal power supply failure.

Field Installation Guidelines

1. Disconnect and lock out main AC supply power and communication cables before cutting enclosure panels or making electrical connections.
2. Cut the panel enclosure opening strictly according to the PanelView 900 dimensional specifications, deburring all edges thoroughly.
3. Inspect the rear bezel rubber sealing gasket to ensure it is clean, intact, and properly aligned to preserve NEMA 4X or IP enclosure ratings.
4. Seat the terminal into the panel cutout and tighten the surrounding mounting clamps sequentially to distribute uniform compression pressure.
5. Wire the AC input terminals with correct line, neutral, and earth grounding conductors, ensuring the protective ground wire connects directly to the panel ground bus.