{"product_id":"allen-bradley-1768-l43s-compactlogix-guardlogix-controller","title":"Allen-Bradley 1768-L43S CompactLogix GuardLogix Controller","description":"\u003cp\u003eConfigured for safety logic execution and integrated motion control in CompactLogix 1768 platforms, the \u003cstrong\u003eAllen-Bradley 1768-L43S\u003c\/strong\u003e (\u003cstrong\u003e1768-L43S\u003c\/strong\u003e GuardLogix Controller) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBase Part Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eHardware Revision Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1768-L43\u003c\/td\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003eIntegrated safety memory layer (0.5 MB) for SIL 3 \/ PL e safety execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1768-L43S\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg (1.00 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCompactLogix 1768 CPU module 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\u003e33.6 W (Backplane: 1.4 A at 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4 to 7.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Memory\u003c\/td\u003e\n\u003ctd\u003e2 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Memory\u003c\/td\u003e\n\u003ctd\u003e0.5 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30 V continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003e5 g at 10 to 500 Hz\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\u003eEtherNet\/IP Deterministic Networks and Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEtherNet\/IP Deterministic Networks\u003c\/strong\u003e: Coordinates safety I\/O data cross-checking over EtherNet\/IP and ControlNet deterministic networks using CIP Safety protocol extensions across 1768 communication bridges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Density Scaling\u003c\/strong\u003e: Integrates rackless 1769 safety I\/O expansion modules and standard I\/O banks under a single controller task execution scheme without requiring extra safety partner hardware slots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Flash Compatibility\u003c\/strong\u003e: Maintains cross-revision firmware synchronization via Studio 5000 \/ RSLogix 5000 environment, enforcing safety signature validation and memory locking routines during firmware flashing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is memory partitioned within the 1768-L43S GuardLogix controller?\u003c\/p\u003e\n\u003cp\u003eA: The controller contains 2 MB of standard memory for primary logic execution and an independent 0.5 MB safety memory section dedicated to safety task storage.\u003c\/p\u003e\n\u003cp\u003eQ: What are the backplane power supply demands for the 1768-L43S CPU?\u003c\/p\u003e\n\u003cp\u003eA: The processor draws 1.4 A at 24 VDC from the system backplane power supply, resulting in maximum total power consumption of 33.6 W and power dissipation between 4 and 7.5 W.\u003c\/p\u003e\n\u003cp\u003eQ: What precautions must be taken when attaching or removing serial cables during operation?\u003c\/p\u003e\n\u003cp\u003eA: Power must be isolated prior to connecting or disconnecting serial communication cables to prevent hazardous electrical arcing across open contacts in industrial locations.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Mounting\u003c\/strong\u003e: Mount the controller securely onto a 35 mm DIN rail or chassis panel inside a protective enclosure, verifying top and bottom mounting latches click firmly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Considerations\u003c\/strong\u003e: Ensure the 1768 system mounting rail connects directly to the panel protective earth (PE) ground bus bar to preserve electromagnetic immunity against 10 V\/m radiated RF interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArc Flash Prevention\u003c\/strong\u003e: De-energize backplane and serial port connections before making physical cable modifications to suppress electrical arcing hazards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Limits\u003c\/strong\u003e: Maintain panel cooling air flow to prevent ambient operating temperatures from exceeding 60 deg C under maximum power dissipation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48596873773246,"sku":"1768-L43S","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1768-L45S_7f89920c-330e-4cf2-a5a5-38cd07e15236.png?v=1786087196","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1768-l43s-compactlogix-guardlogix-controller","provider":"AutoOilTech Limited","version":"1.0","type":"link"}