{"product_id":"allen-bradley-1747-l541-slc-500-slc-5-04-16k-controller","title":"Allen-Bradley 1747-L541 SLC 500 SLC 5\/04 16K Controller","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1747-L541\u003c\/strong\u003e is an SLC 5\/04 modular processor designed for medium-scale industrial control and distributed I\/O applications. As a core central processing unit within the Allen-Bradley SLC 500 system architecture, it delivers high-speed program execution and expanded communication integration across industrial networks.\u003c\/p\u003e\n\u003cp\u003eThe controller features 12K words of user program memory and up to 4K words of additional data storage. Equipped with an on-board math co-processor, the \u003cstrong\u003e1747-L541\u003c\/strong\u003e achieves execution times of 0.37 $\\mu$s for bit instructions (XIC) and a typical scan time of 0.9 ms per 1K of ladder logic. It supports advanced instruction sets, indirect addressing, remote I\/O, and DeviceNet pass-through, enabling efficient control logic for complex automation tasks.\u003c\/p\u003e\n\u003cp\u003eNetworking features include an integrated Data Highway Plus (DH+) port for direct connection to peer-to-peer DH+ networks, allowing direct communication with PLC-5 processors without additional interface modules. Additionally, an RS-232 serial communication port supports user-configurable protocols, including DF1 Full-Duplex, DF1 Half-Duplex master\/slave, DF1 Radio Modem, DH-485, Modbus RTU, and ASCII.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16K Total Memory Architecture:\u003c\/strong\u003e Configured with 12K words of ladder program memory and up to 4K words of data storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Board Math Co-Processor:\u003c\/strong\u003e Accelerates execution of advanced floating-point and math instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in DH+ Communication Port:\u003c\/strong\u003e Enables high-speed multi-drop and extended distance peer-to-peer networking directly to DH+ devices and PLC-5 systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protocol RS-232 Port:\u003c\/strong\u003e Configurable for DF1, DH-485, ASCII, and DF1 radio modem communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh System Expansion:\u003c\/strong\u003e Supports up to 960 local discrete I\/O points across a maximum local system footprint of 3 chassis and 30 slots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Processing Speed:\u003c\/strong\u003e Provides a typical scan time of 0.9 ms\/K and bit execution speed of 0.37 $\\mu$s.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributed System Integration:\u003c\/strong\u003e Supports distributed I\/O configurations using remote I\/O scanners and direct communication modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributed Factory Automation:\u003c\/strong\u003e Controls complex machinery and distributed production lines using DH+ peer-to-peer networking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Machinery Control:\u003c\/strong\u003e Executes real-time PID loops and mathematical algorithms via the integrated hardware math co-processor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Upgrades \u0026amp; Maintenance:\u003c\/strong\u003e Serves as a direct drop-in replacement processor for existing SLC 5\/04 hardware chassis configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Node Plant Networking:\u003c\/strong\u003e Connects local SLC 500 racks to plant-wide supervisory networks and operator interfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500 (SLC 5\/04)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Memory\u003c\/td\u003e\n\u003ctd\u003e12K Words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Data Storage\u003c\/td\u003e\n\u003ctd\u003eUp to 4K Words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Scan Time\u003c\/td\u003e\n\u003ctd\u003e0.9 ms\/K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBit Execution Time (XIC)\u003c\/td\u003e\n\u003ctd\u003e0.37 $\\mu$s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Local I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e960 Discrete I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Local Expansion\u003c\/td\u003e\n\u003ctd\u003e3 Chassis \/ 30 Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Ports\u003c\/td\u003e\n\u003ctd\u003e1 x DH+, 1 x RS-232 (Channel 0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols (RS-232)\u003c\/td\u003e\n\u003ctd\u003eDF1 Full-Duplex, DF1 Half-Duplex, DF1 Radio Modem, DH-485, ASCII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e1.0 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock\/Calendar Accuracy\u003c\/td\u003e\n\u003ctd\u003e+or-54 sec\/month at 25 degC; +or-81 sec\/month at 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Backup Options\u003c\/td\u003e\n\u003ctd\u003eFlash EPROM (1747-M11, 1747-M12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC (-40 to 185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration (Operating)\u003c\/td\u003e\n\u003ctd\u003eDisplacement: 0.015 inch peak-to-peak at 5-57 Hz; Acceleration: 2.5Gs at 57-2000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock (Operating)\u003c\/td\u003e\n\u003ctd\u003e30Gs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Software\u003c\/td\u003e\n\u003ctd\u003eRSLogix 500 \/ APS \/ SLC 500 A.I. Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDH+ Port\u003c\/td\u003e\n\u003ctd\u003e3-pin Data Highway Plus network connector for high-speed multi-drop communications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-232 Port (Channel 0)\u003c\/td\u003e\n\u003ctd\u003e9-pin D-shell serial connection supporting DF1, DH-485, ASCII, and modem topologies.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeyswitch\u003c\/td\u003e\n\u003ctd\u003e3-position front panel switch for selecting Run, Program, and Remote (REM) operating modes.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify system power is off before inserting or removing the processor module from Slot 0 of the 1746 chassis.\u003c\/li\u003e\n\u003cli\u003eConfirm backplane power supply capacity (5V DC and 24V DC current limits) accounts for the 1.0 A @ 5V DC and 200 mA @ 24V DC requirements of the module.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the 1746 chassis and continuous shielding on Data Highway Plus (Belden #9463) communication cabling.\u003c\/li\u003e\n\u003cli\u003eSet the 3-position keyswitch to REM or PROG before attempting initial firmware updates or logic downloading.\u003c\/li\u003e\n\u003cli\u003eSecure all serial and DH+ connectors with locking screws to prevent signal loss from operational vibration.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eConfiguration Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eOpen RSLogix 500 software and select 1747-L541 SLC 5\/04 CPU in the System Configuration dialog.\u003c\/li\u003e\n\u003cli\u003eConfigure Channel 1 (DH+) with a unique node address (0-63) and match the network baud rate (typically 57.6k, 115.2k, or 230.4k baud).\u003c\/li\u003e\n\u003cli\u003eSet Channel 0 (RS-232) protocol driver to DF1 Full-Duplex, DH-485, or ASCII based on connected target devices.\u003c\/li\u003e\n\u003cli\u003eProgram user memory partitions and establish data file protection using software security features or hardware keyswitch settings.\u003c\/li\u003e\n\u003cli\u003eDownload the complete application file, verify runtime memory utilization, and switch the CPU mode to Run.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53770306486635,"sku":"1747-L541","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1747-L541_1200x1200_f36cc84a-21d7-4004-a6e0-5d80e05bef28.jpg?v=1787740853","url":"https:\/\/www.plcprotech.com\/it\/products\/allen-bradley-1747-l541-slc-500-slc-5-04-16k-controller","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}