{"product_id":"allen-bradley-1771-ke-communication-controller-module","title":"Allen-Bradley 1771-KE Communication Controller Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-KE\u003c\/strong\u003e is a \u003cstrong\u003ePLC-5 Communication Controller Module\u003c\/strong\u003e that provides serial communication interfaces between PLC-5 controllers and external devices. It features \u003cstrong\u003eData Highway\u003c\/strong\u003e and \u003cstrong\u003eRS-232-C\u003c\/strong\u003e ports for flexible connectivity in legacy PLC-5 automation networks, enabling data exchange with programming terminals, SCADA systems, and other serial devices.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Communication Controller Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Platform:\u003c\/strong\u003e PLC-5 \/ 1771 I\/O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e Data Highway and RS-232-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessor Port Speed:\u003c\/strong\u003e 91.2 kilobaud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 750 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Requirement:\u003c\/strong\u003e 1.2 A at 5 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e Approx. 6 W at 5 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Arm:\u003c\/strong\u003e 1771-WH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Rack mountable (1771 chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Conformal coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.79 lbs (1,266 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Communication Interfaces:\u003c\/strong\u003e Data Highway port for PLC-5 network connectivity and RS-232-C for direct serial device connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Data Exchange:\u003c\/strong\u003e 91.2 kbps processor port enables rapid data transfer between controller and external systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Integration:\u003c\/strong\u003e Directly interfaces with PLC-5 backplane for seamless module-to-module communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal Coating:\u003c\/strong\u003e Protects circuitry from moisture, dust, and industrial contaminants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Wiring Arm:\u003c\/strong\u003e Uses 1771-WH for consistent installation practices across the 1771 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePLC-5 programming and diagnostics via Data Highway\u003c\/li\u003e\n\u003cli\u003eSCADA system integration through RS-232-C serial links\u003c\/li\u003e\n\u003cli\u003ePrinter and peripheral device connectivity\u003c\/li\u003e\n\u003cli\u003eLegacy system maintenance and expansion\u003c\/li\u003e\n\u003cli\u003eData logging and supervisory control interfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Selection:\u003c\/strong\u003e Install the 1771-KE into any available slot in a 1771-series I\/O chassis. Verify backplane has adequate 5VDC capacity (1.2A requirement).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Arm Installation:\u003c\/strong\u003e Attach the \u003cstrong\u003e1771-WH wiring arm\u003c\/strong\u003e to provide access to Data Highway and RS-232-C terminal connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Highway Connection:\u003c\/strong\u003e Connect the Data Highway port to the PLC-5 network backbone using appropriate cabling (typically 1770-CD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS-232-C Configuration:\u003c\/strong\u003e Connect serial devices (programming terminals, printers, SCADA interfaces) to the RS-232-C port. Configure baud rate and protocol settings per device requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Verification:\u003c\/strong\u003e Apply chassis power and verify module status indicators. Check communication integrity with connected devices.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1771-KE require an external power supply?\u003c\/strong\u003e\u003cbr\u003e\nA: No. The module receives all operating power through the PLC-5 backplane (5VDC, 1.2A).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum cable length for RS-232-C connections?\u003c\/strong\u003e\u003cbr\u003e\nA: Standard RS-232-C limits cable length to approximately 50 feet (15 meters) at 91.2 kbps. Use RS-422\/485 converters for longer distances.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1771-KE communicate with modern Ethernet networks?\u003c\/strong\u003e\u003cbr\u003e\nA: No. The 1771-KE supports Data Highway and RS-232-C only. For Ethernet connectivity, use the 1771-KG or migrate to ControlLogix with 1756-ENBT\/EN2T modules.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 1771-KE and 1771-KF?\u003c\/strong\u003e\u003cbr\u003e\nA: The 1771-KF is an enhanced communication module with additional features. Verify specific application requirements when selecting between models.\u003c\/p\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify total backplane current budget before adding the 1771-KE (1.2A at 5VDC)\u003c\/li\u003e\n\u003cli\u003eConfirm Data Highway network topology compatibility with existing infrastructure\u003c\/li\u003e\n\u003cli\u003eFor RS-232-C connections, ensure cable length stays within specification\u003c\/li\u003e\n\u003cli\u003eConsider 1771-KG for applications requiring additional communication features\u003c\/li\u003e\n\u003cli\u003ePlan migration path to ControlLogix Ethernet-based communication for future-proofing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53803388731576,"sku":"1771-KE","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1771-KE_3.png?v=1784796355","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1771-ke-communication-controller-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}