Allen-Bradley 2711C-K3M PanelView Component C300

The Allen-Bradley 2711C-K3M, also cataloged as the 2711C-K3M PanelView Component C300, operates as a dedicated hardware component for operator input and basic process visualization within EtherNet/IP, RS-232, and RS-485 serial network platforms.

Suffix Breakdown & Model Matrix

• 2711C: PanelView Component product platform designation.
• K3M: Form factor indicator where K specifies a keypad-only operator input mechanism (10 function keys, navigation keys, and a dedicated numeric keypad), 3 specifies a 3-inch diagonal display size, and M indicates a monochrome transflective FSTN passive matrix screen.
• SER B: Series B hardware revision, dictating updated internal component execution and firmware flash compatibility baselines.

Hardware Specifications

Deterministic Industrial Networking & Firmware Flash Compatibility

The 2711C-K3M interfaces with host controllers via deterministic industrial networks using integrated physical transceivers. Backplane bus communication velocity and serialization protocols enable direct interface execution with MicroLogix and CompactLogix architectures without intermediate interface hardware. The unit features dedicated firmware flash compatibility, allowing application-level logic, local alarm logs, real-time data trends, and tag browsing databases to be written, retained, and parsed inside the onboard flash memory. Data frame delivery on the 10/100 Mbps Ethernet port enforces precise timing intervals for industrial control operations under strict deterministic networking profiles.

Frequently Asked Questions

Q: How is the 2711C-K3M configured without external programming software? A: The device features an embedded, web-based design utility. When connected via the USB Type-B or Ethernet interface to a workstation, configuration pages are served directly from the module's internal operating firmware, permitting full tag configuration, screen layout building, and system parameters deployment via a standard web browser.

Q: What are the exact structural guidelines regarding the internal backup battery? A: The internal lithium battery maintains configuration parameters and runtime properties with a minimum operational lifespan of 5 years at 25 deg C. This battery does not provide backup power for the real-time clock (RTC) circuit during a complete hardware power cycle.

Q: Can this HMI handle simultaneous communications on the serial and Ethernet interfaces? A: Yes, the internal processor routes concurrent traffic from the physical RS-232/RS-485 serial ports and the 10/100 Mbps Ethernet transceiver, allowing the terminal to bridge point-to-point Modbus RTU requests while executing standard CIP commands over EtherNet/IP.

Field Installation Guidelines

• Enclosure Cutout and Gasket Integrity: Ensure the mounting panel thickness ranges between 1.5 mm and 4.8 mm. Insert the terminal into the 10 x 12 cm panel cutout, verifying that the sealing gasket is seated flat without twists to maintain the specified environmental ingress rating.
• Torque Specifications: Tighten all mounting levers evenly to a torque rating of 0.56 N-m (5.0 lb-in.). Exceeding this torque specification risks distorting the front plastic bezel or stripping the functional mechanical mounting tabs.
• Power and Grounding Paths: Execute connections to the 24 VDC nominal input using a dedicated, Class 2 or Safety Extra-Low Voltage (SELV) power supply. Connect a low-impedance functional ground wire directly from the terminal's ground lug to the main enclosure earth ground plane, keeping wire runs as short as possible to attenuate high-frequency electrical noise.
• Conduit and Routing Clearances: Maintain a minimum structural clearance of 50 mm (2.0 in.) on all sides of the terminal housing to facilitate passive convective heat dissipation. Do not route data communication lines (Ethernet and Serial) parallel to high-voltage AC power lines or variable frequency drive (VFD) output motor cables.