Allen-Bradley 2711C-K3M PanelView Component C300 Graphic Terminal

The Allen-Bradley 2711C-K3M, also cataloged as the 2711C Graphic Terminal, operates as a dedicated hardware component for human-machine interface (HMI) data visualization and parameter entry within local PLC automation systems. Featuring a 3-inch monochrome transflective FSTN passive-matrix display with a resolution of 128 x 64 pixels, the terminal processes operator input through ten function keys (F1 through F10), a numeric keypad, and directional navigation controls. Electrical execution is sustained by an integrated 24 VDC nominal power interface with low-power DC consumption profiles.

Suffix Breakdown & Model Matrix

Hardware Specifications

Firmware Interfacing & Deterministic Network Velocity

The Allen-Bradley 2711C-K3M maintains direct firmware flash compatibility with MicroLogix and CompactLogix controller platforms, enabling deterministic data routing over serial communication networks. Optimized internal system buses ensure stable backplane bus communication velocity and rapid tag database execution during continuous polling cycles. Internal circuit isolation suppresses ground loop potential and transient electrical noise across panel-mounted industrial networks.

Frequently Asked Questions

Q: How is the real-time clock powered when external control voltage is removed?

A: The internal real-time clock relies on an integrated lithium battery rated for a 5-year minimum service life at 25 deg C without requiring external battery backup circuits.

Q: What are the exact panel cutout requirements for installing the terminal?

A: Panel cutouts require a rectangular clearance measuring 100 x 120 mm (3.94 x 4.72 inches) with adequate mounting depth to accommodate the 55 mm chassis.

Field Installation Guidelines

Mount the unit into the panel cutout using designated mounting clips to compress the perimeter seal gasket uniformly against the panel face plate. Maintain a minimum ambient clearance of 50 mm (2 inches) around all sides of the housing to permit unrestricted convection air cooling. Connect the 24 VDC power supply lines to the removable terminal block observing correct polarity. Ground the terminal chassis directly to the primary panel earth ground bus via a dedicated copper conductor (14 AWG minimum) to prevent electromagnetic interference from surrounding switching devices.