{"product_id":"1768-l43-rockwell-automation-2mb-compactlogix-controller","title":"1768-L43 Rockwell Automation 2MB CompactLogix Controller","description":"\u003ch2\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e Allen-Bradley \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1769-compactlogix\"\u003eCompactLogix\u003c\/a\u003e Controller Architecture\u003c\/h2\u003e\n\u003cp\u003eEngineered to deliver high-performance control for medium-scale industrial automation tasks, the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e is a versatile CompactLogix modular processor from Rockwell Automation. Equipped with 2 MB of integrated user memory and supporting up to sixteen (16) 1769 Compact I\/O modules across two I\/O banks, this controller leverages the powerful Logix engine to provide tag-based programming, motion control capabilities, and seamless integration with safety systems in a compact form factor.\u003c\/p\u003e\n\u003ch3\u003eDetailed Technical Specifications \u0026amp; Operational Parameters\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003ePerformance Metric\u003c\/th\u003e\n\u003cth\u003eTechnical Specification Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \/ Brand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley \/ CompactLogix Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCatalog Number \u0026amp; Module Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e \/ Central Processing Unit (Processor Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated User Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 MB memory capacity (supports optional 1784-CF128 CompactFlash non-volatile card)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Expansion Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 16 local\/remote 1769 I\/O modules across a maximum of 2 I\/O banks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Power Demands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.3 Amps at 24VDC and 2.0 Amps at 5.2VDC backplane current consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption \u0026amp; Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e31.3 Watts maximum power draw; 6.3 Watts thermal dissipation rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne fully isolated RS-232 serial port supporting up to 38.4 Kbps (via 1747-CP3 or 1756-CP3 cables)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Dimensions \u0026amp; Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.18 x 2.65 x 4.80 inches (13.1 x 6.7 x 12.2 cm); Weight: 11.9 ounces (0.34 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight \u0026amp; Field Experience\u003c\/h3\u003e\n\u003cp\u003eWhen installing the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e controller inside unconditioned industrial enclosures, Global PLC Spare HUB field technicians stress the importance of maintaining strict thermal clearances—specifically 105 mm of top\/bottom space and 90 mm of side clearance—to ensure adequate convection cooling. Furthermore, because this processor draws significant backplane current (1.3A at 24V and 2.0A at 5.2V), system designers must carefully calculate total power supply loading before adding maximum 1769 I\/O expansion racks.\u003c\/p\u003e\n\u003ch3\u003eChassis Mounting \u0026amp; Hardware Integration Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Flexibility:\u003c\/strong\u003e Installs securely onto standard DIN rails or directly onto back panels using M4 or #8 mounting screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Volatile Storage:\u003c\/strong\u003e Accepts optional 1784-CF128 CompactFlash memory cards for automated program backup and modular data transfers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Programming Languages:\u003c\/strong\u003e Fully compatible with standard IEC languages including Relay Ladder Logic, Statement List, and Function Block Diagrams.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced Diagnostics \u0026amp; Fault Detection Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive LED Array:\u003c\/strong\u003e Front-panel indicators (including PWR, I\/O PWR, RUN, FORCE, MEM SAVE, OK, CF, and CH0) provide instant status visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyed Mode Control:\u003c\/strong\u003e Features a physical keyswitch for secure manual switching between Run, Program, and Remote operating modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Protection:\u003c\/strong\u003e RS-232 serial communication port features 30V continuous isolation voltage tested at 500V AC to prevent ground loop damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Equipment \u0026amp; Typical Industrial Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscrete Manufacturing Cells:\u003c\/strong\u003e Coordinating multi-axis packaging machinery and automated material handling transfer lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Treatment Facilities:\u003c\/strong\u003e Managing pump station telemetry, chemical dosing valves, and local SCADA data logging nodes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized Process Skids:\u003c\/strong\u003e Controlling skid-mounted heat exchangers, compressors, and auxiliary turbine management systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal Logistics, Warranty \u0026amp; Procurement Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Freight Carriers:\u003c\/strong\u003e Expedited global shipping dispatched securely via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFulfillment Speed:\u003c\/strong\u003e Standard orders are processed, fully inspected, and dispatched within \u003cstrong\u003e24 to 48 hours\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assurance Guarantee:\u003c\/strong\u003e Backed by a dependable \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering electronic and mechanical manufacturing defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch3\u003eQ: What is the primary function of the optional 1784-CF128 card when used with the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e?\u003c\/h3\u003e\n\u003cp\u003eA: The 1784-CF128 CompactFlash card provides non-volatile memory backup, enabling automatic user program loading upon startup and secure modular data transfer.\u003c\/p\u003e\n\u003ch3\u003eQ: Which communication cable is recommended for connecting a programming PC to the controller serial port?\u003c\/h3\u003e\n\u003cp\u003eA: The controller features an RS-232 port that connects using a 3-meter 1756-CP3 or 1747-CP3 right-angle serial cable.\u003c\/p\u003e\n\u003ch3\u003eQ: Can this controller support distributed I\/O racks beyond the local chassis?\u003c\/h3\u003e\n\u003cp\u003eA: Yes, the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e1768-L43\u003c\/span\u003e\u003c\/strong\u003e supports up to 16 total I\/O modules distributed across a maximum of 2 physical I\/O banks.\u003c\/p\u003e\n\u003ch3\u003eQ: What precautions should be taken regarding enclosure ventilation and clearances?\u003c\/h3\u003e\n\u003cp\u003eA: Maintain at least 105 mm of vertical clearance and 90 mm of horizontal space around the unit to prevent thermal overload within the operational 0°C to 60°C range.\u003c\/p\u003e\n\u003ch3\u003eQ: Purchasing Guidance: How do I verify power supply compatibility before adding expansion I\/O?\u003c\/h3\u003e\n\u003cp\u003eA: Calculate the cumulative 5.2VDC and 24VDC current draws of all planned 1769 modules to ensure your system power supply does not exceed capacity thresholds.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013902098614,"sku":"1768-L43","price":138.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1768-L43_807a8a5c-d26b-4d82-aca1-ec00a2c18af4.jpg?v=1786523379","url":"https:\/\/www.plcsparehub.com\/products\/1768-l43-rockwell-automation-2mb-compactlogix-controller","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}