{"product_id":"allen-bradley-1747-l514-slc-5-01-processor","title":"Allen-Bradley 1747-L514 SLC 5\/01 Processor","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1747-L514 SLC 5\/01 Processor\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1747-L514\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1747-L514 SLC 5\/01 Processor\u003c\/strong\u003e, serves as the primary SLC 5\/01 CPU module utilized to execute cyclic scan control, I\/O image table management, and DH-485 network coordination across\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eRockwell Automation\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eSLC 500 modular chassis systems. The processor operates as slot 0 controller with integrated memory execution and embedded serial communication handling.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe base model 1747-L514 does not include functional suffix segmentation. It is a fixed configuration SLC 5\/01 processor variant with 4K user memory and integrated DH-485 communication interface.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1747-L514\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e90 mA @ 5 VDC backplane current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSLC 5\/01 Processor Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Memory\u003c\/td\u003e\n\u003ctd\u003e4K user words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Scan Time\u003c\/td\u003e\n\u003ctd\u003e8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Scan Time\u003c\/td\u003e\n\u003ctd\u003e2.6 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O\u003c\/td\u003e\n\u003ctd\u003e960 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Support\u003c\/td\u003e\n\u003ctd\u003eUp to 3 chassis \/ 30 slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBackplane Bus Execution and DH-485 Control Architecture\u003c\/h3\u003e\n\u003cp\u003eWithin\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eRockwell Automation\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eSLC 500 backplane systems, the 1747-L514 executes deterministic scan-based control using capacitor-backed RAM for cyclic program execution. The processor occupies slot 0 and coordinates all I\/O modules through backplane image table synchronization.\u003c\/p\u003e\n\u003cp\u003eThe integrated DH-485 interface operates as a serial token-based communication node, supporting master\/slave exchanges for programming, monitoring, and data transfer via RSLogix 500 environments. Backplane arbitration ensures that I\/O updates are synchronized at defined scan intervals, with 2.6 ms I\/O scan timing and 8 ms program scan execution cycles under nominal load.\u003c\/p\u003e\n\u003cp\u003eMemory architecture is split between volatile program execution space (4K instructions) and EEPROM-backed retention storage via 1747-M1\/M2 expansion modules, enabling structured program retention across power cycles without runtime execution dependency on non-volatile memory.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1747-L514 support hot-swapping in the SLC 500 chassis?\u003cbr\u003eA: No. The processor must be inserted or removed with chassis power removed to prevent backplane signal corruption.\u003c\/p\u003e\n\u003cp\u003eQ: What is the function of slot 0 assignment?\u003cbr\u003eA: Slot 0 defines the primary CPU position responsible for backplane arbitration and I\/O image table coordination across all modules.\u003c\/p\u003e\n\u003cp\u003eQ: Can the DH-485 interface operate independently of the CPU scan cycle?\u003cbr\u003eA: No. DH-485 communication is synchronized with processor execution and depends on CPU scheduling and backplane servicing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eThe module shall be installed exclusively in slot 0 of a 1746 chassis. Backplane connectors must be fully seated to ensure correct 5 VDC and communication bus alignment prior to power application.\u003c\/p\u003e\n\u003cp\u003eDH-485 cabling must follow shielded twisted pair routing practices with correct termination and grounding at a single reference point. Cable routing must be separated from high-noise conductors to maintain serial signal integrity.\u003c\/p\u003e\n\u003cp\u003eEEPROM memory modules, if used, must be inserted only under de-energized conditions to prevent corruption of stored program data.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43545143017562,"sku":"1747-L514","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1747-L5142.jpg?v=1782286097","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1747-l514-slc-5-01-processor","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}