{"product_id":"1747-l551-allen-bradley-slc-5-05-16k-controller-slc-500-series","title":"1747-L551 Allen-Bradley SLC 5\/05 16K Controller SLC 500 Series","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1747-L551\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1747-L551\u003c\/strong\u003e SLC 5\/05 Controller, operates as a dedicated hardware component for executing user application logic and Ethernet-based data communication within SLC 500 control platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1747-L551 is a SLC 5\/05 processor module with 16 KB user memory capacity, RS-232 and Ethernet communication interfaces, and support for RSLogix 500 programming software. The controller executes ladder logic programs with a listed program scan time of 0.9 ms\/K.\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\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-L551\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 Type\u003c\/td\u003e\n\u003ctd\u003eSLC 5\/05 16K Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\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\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e25 x 16.5 x 6 cm\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\u003e5 VDC \/ 1000 mA, 24 VDC \/ 200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e16 KB Battery Backed-RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory Capacity\u003c\/td\u003e\n\u003ctd\u003e16,000 Words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Scan Time\u003c\/td\u003e\n\u003ctd\u003e0.9 ms\/K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eEthernet and RS-232\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\u003ctr\u003e\n\u003ctd\u003eMaximum Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e8192 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Type\u003c\/td\u003e\n\u003ctd\u003eFlash EEPROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Shock\u003c\/td\u003e\n\u003ctd\u003e30 G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Network Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1747-L551 processor integrates SLC 500 backplane communication with Ethernet networking capability for controller-to-controller data exchange and supervisory communication. The processor architecture supports deterministic PLC execution by coordinating I\/O updates, ladder program scanning, and communication servicing.\u003c\/p\u003e\n\u003cp\u003eThe SLC 500 platform uses fixed processor memory mapping and modular I\/O expansion. The 1747-L551 firmware environment supports application execution through RSLogix 500 programming tools and maintains user data through battery-backed RAM and Flash EEPROM storage.\u003c\/p\u003e\n\u003ch3\u003eCommunication and Firmware Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe controller provides Ethernet and RS-232 communication channels for programming, monitoring, and system integration tasks. Firmware flash compatibility allows application retention and controller maintenance without replacing the processor hardware.\u003c\/p\u003e\n\u003cp\u003eThe SLC 500 backplane communication structure manages local I\/O data exchange between processor modules and installed chassis modules. Network configuration should follow Allen-Bradley addressing and communication parameter requirements.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1747-L551 SLC 5\/05 16K Controller module\u003c\/li\u003e\n\u003cli\u003e1 x Installed processor housing assembly\u003c\/li\u003e\n\u003cli\u003e1 x Factory-installed firmware memory hardware\u003c\/li\u003e\n\u003cli\u003eCompatible SLC 500 chassis installation required separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eModule Mounting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the processor into the designated SLC 500 chassis slot.\u003c\/li\u003e\n\u003cli\u003eConfirm chassis power is removed before module insertion or removal.\u003c\/li\u003e\n\u003cli\u003eVerify module seating and locking tabs before energizing the system.\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 proper Ethernet cabling and RS-232 wiring according to network design requirements.\u003c\/li\u003e\n\u003cli\u003eSeparate communication cables from high-voltage power wiring to reduce electrical interference.\u003c\/li\u003e\n\u003cli\u003eConfirm communication addressing before connecting the controller to an active network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance Considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify battery-backed memory status during scheduled maintenance.\u003c\/li\u003e\n\u003cli\u003eMaintain firmware compatibility between processor and application software.\u003c\/li\u003e\n\u003cli\u003eGround shielding according to industrial control cabinet wiring practices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhat memory capacity does the 1747-L551 provide?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe controller provides 16 KB user memory with battery-backed RAM for SLC 500 application storage and processor operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhich programming software is used with the 1747-L551?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1747-L551 is programmed using RSLogix 500 software for ladder logic development and controller configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDoes the 1747-L551 support Ethernet communication?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. The processor includes Ethernet communication capability for programming, monitoring, and network data exchange.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat communication ports are available on this controller?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module provides Ethernet and RS-232 communication interfaces for system configuration and data communication.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat is the operating temperature range?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe specified operating temperature range is 0 to 60 deg C for normal controller operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat is the processor scan performance?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe controller provides a listed program scan time of 0.9 ms\/K instruction execution.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhat type of memory storage is used?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe controller uses battery-backed RAM and Flash EEPROM memory for application storage and retention.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCan the 1747-L551 replace other SLC 500 processors?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplacement compatibility depends on chassis configuration, program requirements, firmware revision, and communication architecture.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066410029229,"sku":"1747-L551","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1747-L551.jpg?v=1785927696","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1747-l551-allen-bradley-slc-5-05-16k-controller-slc-500-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}