Product Overview
The Allen-Bradley 2711P-K4M20D8 is a PanelView Plus 6 400 operator terminal designed for industrial visualization and control. This compact HMI provides a reliable interface between operators and automated machinery, enabling real-time monitoring and data entry. As part of the PanelView Plus 6 family, the 2711P-K4M20D8 delivers proven performance in demanding factory environments.
This operator terminal features a 3.5-inch monochrome display with 320 x 240 resolution, 16-level grayscale, and a durable keypad with eight function keys (F1–F8). It operates on a DC supply voltage of 18–32 VDC, making it suitable for standard 24 VDC industrial control panels.
Key Features and Benefits
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Compact 3.5-inch display: Fits in space-constrained panels while providing clear machine status.
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Dual communication ports: Embedded Ethernet and RS-232 enable flexible integration with PLCs and other controllers.
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Keypad input: Eight function keys and navigation keys allow quick operator interaction, even with gloves.
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Robust memory: 256 MB RAM and 512 MB nonvolatile memory (approx. 79 MB free user memory) support applications and data logging.
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Energy-efficient LED backlight: White LED backlight rated for 25,000 hours minimum at 25 °C (77 °F), reducing maintenance downtime.
Technical Specifications
| Parameter |
Value |
| Part Number |
2711P-K4M20D8 |
| Brand |
Allen-Bradley |
| Manufacturer |
Rockwell Automation |
| Product Family |
PanelView Plus 6 Operator Terminals |
| Product Type |
PanelView Plus 6 400 Operator Terminal |
| Display Size |
3.5 in. |
| Display Type |
Grayscale TFT LCD |
| Display Color |
Monochrome |
| Display Area |
70 x 53 mm (2.8 x 2.3 in.) |
| Resolution |
320 x 240, 16-levels gray |
| Backlight |
White LED, not replaceable; 25,000 hours min at 25 °C (77 °F) |
| Input Type |
Keypad |
| Keypad Function Keys |
8 function keys (F1…F8) |
| Keypad Life |
1 million presses |
| Internal Memory |
256 MB RAM, 512 MB nonvolatile memory (approx. 79 MB free user memory) |
| Integrated Ports |
Ethernet, RS-232 |
| Communication |
Ethernet and RS-232 |
| Input Voltage Range |
18–32 VDC |
| Input Power |
18–30 VDC |
| Communication Cable |
2711-NC13 |
| Shipping Weight |
5 lbs. |
| Shipping Dimensions |
14 x 11 x 8 in |
| Series |
Series A and Series B |
| Lifecycle Status |
End of life |
Industry Applications
The Allen-Bradley 2711P-K4M20D8 suits a wide range of industrial applications where reliable operator interface is essential. Typical use cases include:
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Packaging lines: Operators use the keypad to select recipes, monitor line speed, and acknowledge alarms.
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Material handling systems: The HMI displays conveyor status and allows manual override of automated sequences.
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Process control: In chemical or food processing, the 2711P-K4M20D8 provides a local interface for monitoring temperatures, pressures, and flow rates.
With both Ethernet and RS-232 ports, this terminal integrates easily into existing control architectures, enabling centralized supervision and data exchange.
Installation and Setup
Mount the 2711P-K4M20D8 flush into an enclosure rated NEMA, UL, or IP. Maintain clearances of 51 mm (top), 102 mm (bottom), 25 mm (side), and 0 mm (back) to ensure proper ventilation and access. Connect the DC power supply to the terminal’s input terminals, observing the 18–32 VDC range. Use the RS-232 interface for short-distance peer-to-peer communication with DH485 or DF1 protocols. For networked connections, use the Ethernet port with an RJ45 connector supporting 10/100Base-T and MDI/MDI-X.
Configure the terminal’s IP address via the Ethernet settings screen. Download application files using the built-in FTP server or through the configuration software. The terminal supports VNC access for remote viewing and PDF file compatibility for displaying manuals or reports.
Maintenance and Reliability
This operator terminal is built for long service life. The LED backlight is rated for 25,000 hours, minimizing the need for replacement. The keypad is tested to 1 million presses, ensuring durability in high-use environments. To maintain reliability, keep the unit clean and free of dust, and ensure the enclosure seals remain intact. Periodically check the power supply voltage to stay within the 18–32 VDC range, as voltage fluctuations can affect performance.
Because the 2711P-K4M20D8 is end-of-life, securing a spare unit is prudent for maintaining existing systems. PLC Source PRO offers this model as a genuine Allen-Bradley part, ready for immediate deployment.
Compatibility and Integration
The 2711P-K4M20D8 communicates via Ethernet and RS-232, making it compatible with Allen-Bradley controllers and many third-party PLCs. Use the Ethernet port for EtherNet/IP networks, supporting real-time I/O messaging and message exchange. The RS-232 port supports DH485 or DF1 protocols for direct peer-to-peer connections. Both interfaces can operate simultaneously, providing flexible integration options.
The terminal also supports File Transfer Protocol (FTP) for application uploads/downloads, VNC access for remote monitoring, and PDF file display for on-screen documentation.
Buying Guide
Before purchasing the Allen-Bradley 2711P-K4M20D8, verify the following:
- Confirm your power supply provides 18–32 VDC.
- Check that your enclosure has the required cutout dimensions and clearances.
- Ensure your application requires the keypad interface and monochrome display.
- Verify the communication cable part number (2711-NC13) if you need a replacement.
PLC Source PRO stocks genuine Allen-Bradley 2711P-K4M20D8 terminals, ready to ship. Contact us for availability and lead times.