Technical Specifications Breakdown
Key parameters for the 2711P-K4M3A are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Product Family | PanelView Plus Terminals |
| Product Type | Operator Terminals |
| Part Number | 2711P-K4M3A |
| Input Type | Keypad |
| Display Type | Grayscale passive matrix, film compensated super-twist nematic (FSTN) |
| Display Area | 77 x 58 mm (3.0 x 2.3 in.) |
| Resolution | 320 x 240 pixels |
| Application Memory | 5 MB (Series A); 10 MB (Series B) |
| Communication Ports | Ethernet; DH-485 (module communication interface); RS232; USB |
| Input Voltage Range | 85-264 VAC, 47-63 Hz |
Industry Applications for the PanelView Plus 400
This operator terminal suits a variety of applications where operators need a straightforward interface to interact with PLCs and other control devices. For example, in packaging lines, the 2711P-K4M3A can display machine status, alarm messages, and production counts, allowing operators to respond quickly to issues. In material handling systems, the keypad input enables precise navigation through menus and data entry, while the grayscale display remains readable under typical factory lighting. The Ethernet and RS232 ports support integration into existing control networks, facilitating data exchange and remote monitoring.

Installation and Setup Guidance
When installing the 2711P-K4M3A, ensure the AC input is connected to a source within 85-264 VAC, 47-63 Hz. Use a protective earth-ground connection for safety and regulatory compliance. For Ethernet communication, use a Category 5e shielded cable (e.g., Belden 7921A) and RJ45 connectors per IEC 60603-7 to meet EMC requirements. The DH-485 port supports RS-485 daisy-chain topology, while the RS232 port enables point-to-point communication. Always follow the wiring guidelines in the user manual to avoid damage to communication connectors.
Maintenance and Reliability
Regular inspection of the terminal’s connections and display is recommended to ensure reliable operation. The battery-backed real-time clock maintains accurate time, but the battery should be replaced periodically—typically every 4 years at 25°C. Always remove power before replacing the battery. Keep the unit clean and free from excessive dust or moisture to prolong its lifespan. Since this product is discontinued, verify availability and lifecycle status with AutoDCSTech before ordering.

Compatibility and Integration
The 2711P-K4M3A supports Ethernet/IP, DF1, and DH485 protocols, allowing seamless integration with Rockwell Automation PLCs and other industrial devices. The USB port provides additional flexibility for data transfer or peripheral connectivity. When integrating, ensure that the application memory (5 MB for Series A, 10 MB for Series B) is sufficient for your HMI application. For larger storage needs, an external CompactFlash card (up to 512 MB) can be installed, but this is not listed in the core specifications.
Selection Guide and Purchasing Advice
When selecting a replacement or spare HMI, consider the display size, input type, and communication requirements of your application. The 2711P-K4M3A is a discontinued product, so sourcing from a reliable supplier is critical. AutoDCSTech specializes in industrial automation parts and can help you find this unit or a suitable alternative. Contact AutoDCSTech to confirm availability and ensure you receive a genuine Allen-Bradley product.
Availability & Condition at AutoDCSTech
| Part Number | 2711P-K4M3A |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
