{"product_id":"allen-bradley-1747-l543-slc-500-slc-5-04-processor-module","title":"Allen-Bradley 1747-L543 SLC 500 SLC 5\/04 Processor Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1747-L543\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erepresents the high-performance tier of the SLC 500 platform, specifically the SLC 5\/04 controller series. This processor manages complex automation tasks by providing massive I\/O capacity and high-speed execution for discrete and analog control. It serves as a critical bridge for legacy systems requiring Data Highway Plus (DH+) connectivity for peer-to-peer messaging and SCADA integration. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% brand new and original\u003c\/strong\u003e, ensuring your aging infrastructure maintains peak operational integrity with factory-fresh hardware.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1747-L543 utilizes optimized instruction sets and dual communication channels to handle large-scale industrial data:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProcessor Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSLC 5\/04 Controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUser Memory:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e64 KB (Flash EEPROM supported)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eI\/O Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4096 Inputs \/ 4096 Outputs (8192 total digital I\/O max)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eScan Time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.9 ms\/K (Typical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1 x DH+ (Data Highway Plus), 1 x RS-232-C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current (5V DC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1000 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current (24V DC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e200 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal Chassis Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMax 3 chassis \/ 30 slots\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProgramming Software:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRSLogix 500\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.99 lbs (0.45 kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed DH+ Networking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe integrated DH+ port enables high-speed communication between multiple SLC 5\/04 processors and PLC-5 systems. This facilitates rapid plant-wide data synchronization and program uploads\/downloads without the latency found in older DH-485 networks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMassive Memory Headroom:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith 64KB of user memory, this controller handles extensive math instructions, large data tables, and complex recipe management. This capacity prevents memory bottlenecks in systems controlling multiple distributed I\/O racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Execution Speed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 0.9 ms\/K scan rate ensures deterministic control for high-speed packaging, bottling, and material handling lines. This rapid throughput reduces the time between input sensing and output actuation, increasing overall machine precision.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Port Versatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe dedicated RS-232 port supports DF1 protocol for direct connection to HMIs, modems, or barcode scanners. Simultaneously, the DH+ port maintains the primary network link, allowing local diagnostics without interrupting the main control network.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRugged SLC Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module slides directly into any standard 1746 chassis slot (Slot 0). This chassis-based design protects the electronics from electromagnetic interference (EMI) and provides a secure, vibration-resistant mounting solution for heavy industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 1747-L543 handle program retention during power loss?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module utilizes a replaceable lithium battery to back up the RAM. For permanent, non-volatile storage, you can install an optional Flash EEPROM memory module to ensure the program remains intact even during long-term shutdowns or battery failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace a 1747-L541 (16K) or 1747-L542 (32K) with this model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1747-L543 is fully backward compatible with the L541 and L542. It offers the same physical footprint and communication ports but provides a larger 64K memory buffer to accommodate program growth.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum number of I\/O slots this processor can control?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SLC 5\/04 supports up to 3 local chassis and a maximum of 30 slots. If your system exceeds 30 slots, you must utilize the Remote I\/O (RIO) scanner capabilities via a separate 1747-SN module to manage additional racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable do I need for DH+ communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse standard \"Blue Hose\" (Data Highway Plus cable) for the DH+ port. For the RS-232 port, a 1747-CP3 or standard null-modem cable connects the processor to your engineering workstation or HMI.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53371925233848,"sku":"1747-L543","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1747-L543.jpg?v=1776677731","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1747-l543-slc-500-slc-5-04-processor-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}