{"product_id":"allen-bradley-1756-l71-plc-cpu-module","title":"Allen-Bradley 1756-L71 GuardLogix 5570 Controller","description":"\u003cp\u003eThe Allen-Bradley 1756-L71 is a high-performance GuardLogix 5570 programmable automation controller designed for integrated standard and safety-rated control within the ControlLogix platform. This controller enables the execution of both standard automation logic and functional safety tasks within a single chassis, maintaining logical independence for robust machine and process control.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIntegrated standard and safety control architecture in a single platform.\u003c\/li\u003e\n\u003cli\u003e2 MB of standard user memory and 1 MB of dedicated safety memory.\u003c\/li\u003e\n\u003cli\u003eSupports up to 128,000 digital I\/O points and 4,000 analog I\/O points.\u003c\/li\u003e\n\u003cli\u003eConformal coating for enhanced protection in harsh industrial environments with airborne contaminants.\u003c\/li\u003e\n\u003cli\u003eIntegrated support for motion control, periodic tasks, and event-driven automation.\u003c\/li\u003e\n\u003cli\u003eEnergy Storage Module (ESM) eliminates the need for traditional batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOil, Gas, and Petrochemical: Management of pressure loops and burner gas-feed systems.\u003c\/li\u003e\n\u003cli\u003eWater and Wastewater: Regulation of chemical dosing and valve positioning.\u003c\/li\u003e\n\u003cli\u003eFood and Beverage: PID logic control for cooking and mixing temperature regulation.\u003c\/li\u003e\n\u003cli\u003ePower Generation: Integration of steam governor actuators and cooling tower systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-L71\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser 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\u003e1 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Memory\u003c\/td\u003e\n\u003ctd\u003e0.98 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-volatile Memory\u003c\/td\u003e\n\u003ctd\u003e1 GB (SD Card)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw @ 1.2V DC\u003c\/td\u003e\n\u003ctd\u003e5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 degC to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe controller installs into any slot of a standard 1756 ControlLogix chassis.\u003c\/li\u003e\n\u003cli\u003eUse the appropriate plastic keying on the chassis slot to ensure correct module orientation and prevent accidental insertion into incompatible slots.\u003c\/li\u003e\n\u003cli\u003eEnsure the Energy Storage Module (ESM) is securely seated; this module handles data retention during power loss.\u003c\/li\u003e\n\u003cli\u003eIf utilizing an SD card for non-volatile storage, insert it with the beveled corner facing up and contacts on the right until it clicks into place.\u003c\/li\u003e\n\u003cli\u003eAlways power down the chassis before inserting or removing the controller to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation in the control cabinet to stay within the 0 to 60 degC operating range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the purpose of the conformal coating on this model?\u003c\/h3\u003e\u003cp\u003eThe conformal coating provides protection against corrosive atmospheres, meeting Severity Level G3 (ANSI\/ISA 71.04-2013) and C4 (IEC 60721-3-5:2018), shielding the PCB from moisture, gases, and particulates.\u003c\/p\u003e\u003ch3\u003eDoes the 1756-L71 have an integrated Ethernet port?\u003c\/h3\u003e\u003cp\u003eNo, this controller does not feature an embedded Ethernet port. Local programming is performed via the front-facing USB 2.0 port, and network communication requires a dedicated bridge module in the chassis.\u003c\/p\u003e\u003ch3\u003eHow does the controller handle data retention during power loss?\u003c\/h3\u003e\u003cp\u003eIt utilizes an Energy Storage Module (ESM) rather than a battery to store data to non-volatile memory when power is interrupted.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48827083686078,"sku":"1756-L71","price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_41d28be3-e719-4684-a554-08c6560123d9.jpg?v=1788303035","url":"https:\/\/www.autooiltech.com\/ar\/products\/allen-bradley-1756-l71-plc-cpu-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}