{"product_id":"allen-bradley-1747-l541-slc-5-04-processor-module","title":"Allen-Bradley 1747-L541 SLC 5\/04 Processor Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1747-L541\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1747-L541\u003c\/strong\u003e Processor Module, operates as a dedicated hardware component for central program execution and multi-chassis I\/O scanning within SLC 500 rack assemblies.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1747-L541\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\u003e0.29 kg (0.64 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSingle-slot SLC 500 chassis footprint\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\u003eStandard backplane power draw (5 to 24 VDC operating range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e16K words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Memory\u003c\/td\u003e\n\u003ctd\u003eFlash EEPROM support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Discrete I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e8192 digital I\/O max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eDH+ (Data Highway Plus) and RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Execution Speed\u003c\/td\u003e\n\u003ctd\u003e0.9 ms\/K scan time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Support\u003c\/td\u003e\n\u003ctd\u003e3 local chassis max \/ 30 slots max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Software\u003c\/td\u003e\n\u003ctd\u003eRSLogix 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Backplane \u0026amp; EtherNet\/IP Networks\u003c\/h3\u003e\n\u003cp\u003eIntegrated into Slot 0 of the local chassis, the processor drives high-velocity backplane bus communication across up to 3 local rack frames (30 total slots). The onboard Data Highway Plus (DH+) and RS-232 communication channels support peer-to-peer data transfers and system monitoring without disrupting local cyclic I\/O scans. High firmware flash compatibility ensures synchronized program memory management across Flash EEPROM structures while maintaining deterministic execution latencies down to 0.9 ms per kiloword across connected industrial network topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the primary onboard communication interfaces available on the 1747-L541 CPU?\u003c\/p\u003e\n\u003cp\u003eA: The module features dedicated DH+ (Data Highway Plus) for high-speed peer-to-peer processor networking and an RS-232 channel for point-to-point serial communication and programming setup.\u003c\/p\u003e\n\u003cp\u003eQ: What maximum I\/O count can the 1747-L541 address across local chassis expansion?\u003c\/p\u003e\n\u003cp\u003eA: The processor can manage up to 8192 digital I\/O points distributed across a maximum configuration of 3 local chassis (30 total slots).\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1747-L541 support non-volatile memory backup without external battery power?\u003c\/p\u003e\n\u003cp\u003eA: Yes, non-volatile user logic and table data backup can be maintained using compatible Flash EEPROM memory modules installed directly onto the processor board.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure main power to the SLC 500 chassis power supply is completely switched off before inserting or removing the processor card. Align the 1747-L541 card edge with the guide rails of Slot 0 in the primary chassis frame, sliding the unit inward until the chassis retaining levers lock securely.\u003c\/p\u003e\n\u003cp\u003eConnect DH+ communication wiring using standard 3-conductor shielded twinaxial cable (Belden 9463), ensuring proper connection to the 3-pin DH+ connector (Clear, Shield, Blue). Land the cable shield drain wire at a single enclosure earth ground point to prevent ground loops. Maintain a minimum separation distance of 12 inches between network communication cables and high-voltage AC power wiring inside electrical control panels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48791573692606,"sku":"1747-L541","price":96.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1747-L542_2_acde559b-1ac3-4180-953e-73ebbd9f9e87.png?v=1787819184","url":"https:\/\/www.autooiltech.com\/ar\/products\/allen-bradley-1747-l541-slc-5-04-processor-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}