{"product_id":"allen-bradley-1747-l543-slc-500-series-slc-5-04-processor","title":"Allen-Bradley 1747-L543 SLC 500 Series SLC 5\/04 Processor","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1747-L543\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1747-L543\u003c\/strong\u003e SLC 5\/04 Processor, operates as a dedicated CPU module for program execution and DH+ \/ RS-232 communication within SLC 500 controller platforms. The module provides 64K words of user memory for ladder logic processing and controller data handling.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1747-L543 is part of the SLC 5\/04 processor family within the Allen-Bradley SLC 500 platform. The available catalog reference includes the standard hardware identifier 1747-L543 and spare model reference 1747L543.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\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-L543\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\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSLC 5\/04 Processor\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\u003e0.32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 13 x 14.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified in provided data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in provided data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e64K words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eDH+ and RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Family\u003c\/td\u003e\n\u003ctd\u003eSLC 5\/04 CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eData Highway Plus and Serial Communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eSLC chassis installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Communication Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1747-L543 processor supports SLC 500 system communication through DH+ and RS-232 interfaces. DH+ communication provides controller-to-controller and operator interface connectivity, while the RS-232 port supports serial communication with compatible devices.\u003c\/p\u003e\n\u003cp\u003eThe Allen-Bradley SLC platform uses chassis-based I\/O architecture with processor modules communicating through the SLC backplane. System configuration depends on installed I\/O modules, power supply capacity, and application requirements.\u003c\/p\u003e\n\u003cp\u003eThe processor firmware compatibility must match the configured SLC 500 hardware environment. Program transfer, monitoring, and troubleshooting functions require compatible programming software and communication drivers.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1747-L543 SLC 5\/04 Processor Module\u003c\/li\u003e\n\u003cli\u003e1 x Processor housing assembly\u003c\/li\u003e\n\u003cli\u003e1 x Communication interface ports (DH+ and RS-232 integrated)\u003c\/li\u003e\n\u003cli\u003e1 x SLC 500 compatible processor unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChassis Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the processor module only in a compatible Allen-Bradley SLC 500 chassis.\u003c\/li\u003e\n\u003cli\u003eVerify chassis power is removed before module insertion or removal.\u003c\/li\u003e\n\u003cli\u003eConfirm backplane connector alignment before securing the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Wiring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse suitable shielded communication cable for RS-232 connections where required.\u003c\/li\u003e\n\u003cli\u003eMaintain separation between communication wiring and high-voltage power conductors.\u003c\/li\u003e\n\u003cli\u003eConnect DH+ network wiring according to SLC 500 network installation practices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Check\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify processor configuration before loading application programs.\u003c\/li\u003e\n\u003cli\u003eConfirm communication parameters match connected devices.\u003c\/li\u003e\n\u003cli\u003eAvoid unauthorized firmware or memory modifications during operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat controller family does the 1747-L543 belong to?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1747-L543 is an Allen-Bradley SLC 5\/04 CPU processor module designed for the SLC 500 programmable controller family.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat communication ports are available on this processor?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module provides DH+ and RS-232 communication interfaces for programming, monitoring, and system communication functions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHow much user memory is available in the 1747-L543?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe processor provides 64K words of user memory for ladder logic programs, data tables, and controller configuration storage.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCan the 1747-L543 operate in other PLC chassis platforms?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The processor is designed for installation in Allen-Bradley SLC 500 chassis systems and is not compatible with other controller platforms.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the processor support Ethernet communication directly?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The provided specifications list DH+ and RS-232 communication ports. Ethernet requires additional compatible communication hardware.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIs hot swapping supported for this processor module?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe processor should not be removed or installed under power unless the system documentation specifically permits the procedure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat software is required for programming the 1747-L543?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProgramming requires software compatible with Allen-Bradley SLC 500 processors and the selected communication interface.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat should be checked before replacing an existing processor?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVerify processor model compatibility, memory requirements, communication settings, and application program backup before replacement.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066409963693,"sku":"1747-L543","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1747-L543_1-0.jpg?v=1785929502","url":"https:\/\/www.maxwellplc.com\/ga\/products\/allen-bradley-1747-l543-slc-500-series-slc-5-04-processor","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}