{"product_id":"allen-bradley-2711p-k4m20a-industrial-automation-module-stable","title":"Allen-Bradley 2711P-K4M20A Industrial Automation Module - Stable","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 2711P-K4M20A is a compact PanelView Plus 400 operator terminal designed for reliable machine-level visualization and control. This Human Machine Interface (HMI) combines a 3.8-inch grayscale display with a rugged keypad interface, making it ideal for demanding industrial environments where space is limited but performance is critical. As part of the PanelView Plus family, the 2711P-K4M20A delivers proven Allen-Bradley quality and seamless integration with Rockwell Automation controllers.\u003c\/p\u003e\u003cp\u003eThis operator terminal is engineered for real-time monitoring and process control, enabling operators to view machine status, input data, and respond to alarms efficiently. With its keypad input, the 2711P-K4M20A provides tactile feedback even in environments where touchscreens may be impractical. The unit supports multiple communication protocols, ensuring flexible connectivity in existing automation architectures.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe 2711P-K4M20A is built to meet the demands of continuous industrial operation. Below are the key specifications:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e2711P-K4M20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Size\u003c\/td\u003e\n\u003ctd\u003e3.8 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003eGrayscale passive matrix, film compensated super-twist nematic (FSTN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Area\u003c\/td\u003e\n\u003ctd\u003e77 x 58 mm (3.0 x 2.3 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e320 x 240 pixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklight\u003c\/td\u003e\n\u003ctd\u003eCCFL, 50,000 hours min at 25 °C (77 °F), non-replaceable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eKeypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction Keys\u003c\/td\u003e\n\u003ctd\u003eEight (8) F1-F8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power\u003c\/td\u003e\n\u003ctd\u003eAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e85-264 VAC, 47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e64 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Memory\u003c\/td\u003e\n\u003ctd\u003e5 MB (Series A), 10 MB (Series B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Flash Memory\u003c\/td\u003e\n\u003ctd\u003e5 MB \/ 10 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eEthernet, RS-232, 1 USB host\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eTCP\/IP, DF1, DH485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal Time Clock\u003c\/td\u003e\n\u003ctd\u003eBattery-backed, accuracy ±2 minutes per month\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Lifespan\u003c\/td\u003e\n\u003ctd\u003e1 million actuations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eA, B, C, D, E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Lifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued\/Obsolete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and rugged design:\u003c\/strong\u003e The 3.8-inch display fits easily into tight control panels while maintaining readability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible connectivity:\u003c\/strong\u003e Ethernet and RS-232 ports support TCP\/IP, DF1, and DH485 protocols, allowing integration with various PLCs and PACs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable keypad:\u003c\/strong\u003e Rated for 1 million actuations, the keypad ensures long-term reliability in high-use environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-backed RTC:\u003c\/strong\u003e Maintains accurate timekeeping even during power loss, essential for time-stamped data logging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple series support:\u003c\/strong\u003e Compatible with Series A through E, providing flexibility for replacement or upgrade scenarios.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 2711P-K4M20A is well-suited for a variety of industries, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Monitor and control assembly lines, packaging machines, and robotic cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control:\u003c\/strong\u003e Display real-time process variables, alarms, and trends in chemical, food, and beverage plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Operate conveyors, sorters, and automated storage systems with intuitive keypad controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn a typical manufacturing scenario, the 2711P-K4M20A serves as the primary operator interface for a PLC-controlled machine, allowing operators to start\/stop cycles, adjust setpoints, and acknowledge alarms without needing to access the control cabinet. Its grayscale display remains readable under various lighting conditions, and the keypad works well even when operators wear gloves.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eWhen installing the 2711P-K4M20A, follow these practical guidelines to ensure proper operation:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e The terminal must be flush-mounted in an enclosure rated NEMA Type 12, 13, 4X (Indoor use only), IP54, or IP65. Ensure the panel cutout is precisely sized to avoid stress on the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrientation:\u003c\/strong\u003e The unit supports horizontal mounting only; screen rotation is not supported. Plan the panel layout accordingly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental conditions:\u003c\/strong\u003e Operate within an ambient temperature range of 0-55 °C (32-131 °F). Avoid exposure to excessive vibration or shock beyond the specified limits (15 g at 11 ms shock; 10-57 Hz, 0.012 pk-pk displacement, 57-500 Hz, 2 g pk acceleration).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect AC power (85-264 VAC, 47-63 Hz) using proper fusing and disconnects. For Ethernet and RS-232 connections, use shielded cables appropriate for industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB peripherals:\u003c\/strong\u003e Use the USB host port for keyboards, mice, or flash drives if needed; ensure the devices are compatible with the terminal's operating system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eTo maximize the service life of the 2711P-K4M20A, implement a routine maintenance schedule:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual inspection:\u003c\/strong\u003e Periodically check the display and keypad for physical damage or wear. Clean the screen with a soft, dry cloth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklight:\u003c\/strong\u003e The CCFL backlight has a rated life of 50,000 hours at 25 °C. Plan for eventual replacement, as it is non-replaceable; consider this when budgeting long-term maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e The RTC battery should be replaced every few years to maintain accurate timekeeping. Refer to the manufacturer's guidelines for battery replacement procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental checks:\u003c\/strong\u003e Ensure the enclosure remains sealed and that ambient conditions stay within specified limits. Dust and moisture can degrade performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy following these practices, you can extend the operational life of the 2711P-K4M20A and avoid unexpected downtime, which is especially important given its discontinued status.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 2711P-K4M20A integrates seamlessly with Rockwell Automation controllers, including Allen-Bradley PLCs and PACs. It also supports communication with third-party controllers via TCP\/IP, DF1, and DH485 protocols, making it a versatile choice for mixed-vendor environments. The Ethernet port allows high-speed data exchange (10\/100 Mbps) over distances up to 100 meters per segment, while the RS-232 port is suitable for point-to-point communication within 15 meters, ideal for panel-to-controller links.\u003c\/p\u003e\u003cp\u003eFor programming and configuration, the terminal is compatible with Rockwell Automation's FactoryTalk View Studio software, enabling you to create custom screens, alarms, and data logging. The USB host port simplifies file transfers and peripheral attachment.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the Allen-Bradley 2711P-K4M20A, verify the following:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries compatibility:\u003c\/strong\u003e Confirm which series (A, B, C, D, or E) your application requires, as application memory varies (5 MB for Series A, 10 MB for Series B).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifecycle status:\u003c\/strong\u003e This model is discontinued\/obsolete. Ensure you have a long-term support plan or consider sourcing from a reliable supplier that stocks genuine parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication needs:\u003c\/strong\u003e Verify that your control system supports the protocols available on this terminal (TCP\/IP, DF1, DH485).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical fit:\u003c\/strong\u003e Check the display size and cutout dimensions against your panel design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor a dependable supply of the Allen-Bradley 2711P-K4M20A and other industrial automation spares, consider PLC Source PRO. We offer quality parts with fast shipping to minimize downtime.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44454543163491,"sku":"2711P-K4M20A","price":271.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/2711P-T15C4A8-1_e4f50652-2bf2-43fc-a669-295a724bae70.jpg?v=1786145494","url":"https:\/\/www.plcsourcepro.com\/he\/products\/allen-bradley-2711p-k4m20a-industrial-automation-module-stable","provider":"PLC Source PRO","version":"1.0","type":"link"}