{"product_id":"allen-bradley-2711-b5a3l1-interface-terminal","title":"Allen-Bradley 2711-B5A3L1 PanelView 550 Operator Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 2711-B5A3L1 is a PanelView 550 operator terminal designed for reliable human-machine interface (HMI) applications in industrial environments. This DC-powered unit serves as a critical control interface, allowing operators to monitor system variables, execute manual commands, and manage automated processes. Built for durability, the terminal replaces complex physical pushbutton arrays with a consolidated electronic interface, reducing wiring requirements and enhancing system uptime in sectors such as petrochemical, water treatment, and automated packaging.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHybrid input configuration featuring both an analog resistive touchscreen and a 10-key tactile function keypad (F1-F10).\u003c\/li\u003e\n\u003cli\u003e5.5-inch monochrome blue-mode LCD display with 256 x 128 pixel resolution.\u003c\/li\u003e\n\u003cli\u003eIntegrated DH-485 communication port for multi-node network connectivity.\u003c\/li\u003e\n\u003cli\u003eDedicated RS-232 serial port for local printer data logging.\u003c\/li\u003e\n\u003cli\u003e170 KB of application runtime memory with non-volatile storage for screen data.\u003c\/li\u003e\n\u003cli\u003eField-replaceable backlight module (2711-NL1) to extend operational life.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis operator terminal is suitable for a wide range of industrial automation tasks, including machine control, process monitoring, and data logging in manufacturing facilities. Its robust design allows for operation in high-vibration environments where traditional mechanical interfaces might fail.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e2711-B5A3L1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePanelView 550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Size\u003c\/td\u003e\n\u003ctd\u003e5.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003eMonochrome blue-mode LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e256 x 128 pixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Method\u003c\/td\u003e\n\u003ctd\u003eTouchscreen and Keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e170 KB application runtime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eDH-485 and RS-232 (Printer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued \/ Obsolete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the terminal is mounted in a panel with adequate clearance for ventilation and cable routing.\u003c\/li\u003e\n\u003cli\u003eVerify that the 24 VDC power supply is stable and properly grounded to prevent electrical noise interference.\u003c\/li\u003e\n\u003cli\u003eUse shielded communication cables for DH-485 and RS-232 connections to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003ePower down the unit before performing any maintenance, such as replacing the 2711-NL1 backlight module.\u003c\/li\u003e\n\u003cli\u003eHandle the unit with standard ESD precautions during installation to protect internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eIs the 2711-B5A3L1 still supported by the manufacturer?\u003c\/h3\u003e\u003cp\u003eThe 2711-B5A3L1 is classified as a discontinued or obsolete product. While it remains a reliable component for existing legacy systems, users should plan for eventual migration to modern HMI platforms.\u003c\/p\u003e\u003ch3\u003eCan I replace the backlight on this unit?\u003c\/h3\u003e\u003cp\u003eYes, the display backlight is field-replaceable using the 2711-NL1 replacement module.\u003c\/p\u003e\u003ch3\u003eWhat communication protocols does this terminal support?\u003c\/h3\u003e\u003cp\u003eThis model features an integrated DH-485 port for network communication and an independent RS-232 serial port specifically for printer data logging.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50915788587260,"sku":"2711-B5A3L1","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_39abf1da-7b1b-4660-902c-e0f4e62e5d93.jpg?v=1785840254","url":"https:\/\/www.electronicplc.com\/es\/products\/allen-bradley-2711-b5a3l1-interface-terminal","provider":"Electronic PLC","version":"1.0","type":"link"}