{"product_id":"1756-l7sp-controllogix-safety-partner-processor-allen-bradley-guardlogix","title":"1756-L7SP ControlLogix Safety Partner Processor | Allen-Bradley GuardLogix","description":"\u003ch3\u003e\u003cb\u003eProduct Overview\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e is a dedicated GuardLogix Safety Partner Controller engineered by \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e for the \u003cstrong style=\"color: #0056b3;\"\u003eControlLogix\u003c\/strong\u003e architecture. Operating alongside a primary GuardLogix L7 controller, this module creates a redundant 1oo2 (1-out-of-2) dual-processor structure to achieve high-integrity industrial safety control.\u003c\/p\u003e\n\u003cp\u003eDesigned for mission-critical applications, the \u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e satisfies strict functional safety benchmarks up to SIL 3 (IEC 61508) and Performance Level e (ISO 13849-1). The unit executes safety routines synchronously with its primary partner controller without occupying standalone user memory allocation.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eModel Number\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBrand \u0026amp; Manufacturer\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eProduct Series\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1756-controllogix\"\u003e\u003cstrong style=\"color: #0056b3;\"\u003eControlLogix\u003c\/strong\u003e\u003c\/a\u003e GuardLogix Safety System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eModule Function\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eSafety Partner Controller (1oo2 Redundant Architecture)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSafety Integrity Rating\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eSIL 3 (IEC 61508) \/ PL e, Cat. 4 (ISO 13849-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePrimary Compatibility\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1756-L71S, 1756-L71SK, 1756-L72S, 1756-L72SK, 1756-L73S, 1756-L73SK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eChassis Slot Requirement\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble-slot (2 slots, mounted immediately to the right of primary controller)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eEnergy Storage Modules\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1756-SPESMNSE (Removable Capacitor), 1756-SPESMNRM (Non-Removable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBackplane Current Draw\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e800 mA @ 5.1 VDC | 5 mA @ 1.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower \u0026amp; Thermal Dissipation\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 W Power Dissipation | 8.5 BTU\/hr Thermal Dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eIsolation Rating\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e30V continuous (Basic Insulation, USB port-to-system, 980VAC 60s test)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eEnvironmental Limits\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to +60°C Operating | -40°C to +85°C Storage | 5–95% RH (Non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eVibration \u0026amp; Shock Resistance\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2G @ 10–500 Hz Vibration | 30G Operational Shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eHazLoc Certifications\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eNorth America T4A, ATEX\/IECEx T4 Temperature Codes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eNetwork Protocol Support\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP, ControlNet, DeviceNet Safety Networks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eHardware Architecture \u0026amp; Diagnostic Capabilities\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCross-Checking Execution:\u003c\/b\u003e Continuously mirrors the primary L7 controller's execution to verify logic state integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStatus Diagnostics:\u003c\/b\u003e Generates internal fault hardware flags during instruction discrepancies between safety partners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUSB Interface:\u003c\/b\u003e Front-panel USB 2.0 port provides local programming access with 30V basic system isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCapacitor Energy Backup:\u003c\/b\u003e Operates with ESM modules to safely flush volatile data without battery maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eApplication Scenarios \u0026amp; Equipment Integration\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePress \u0026amp; Stamping Safety:\u003c\/b\u003e Controls emergency stop circuits, light curtains, and two-hand anti-tiedown interlocking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRobotic Cell Guarding:\u003c\/b\u003e Manages safety zones and speed-restricted monitoring across automated assembly cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProcess Emergency Shutdown (ESD):\u003c\/b\u003e Coordinates high-integrity burner management and critical isolation valves in oil \u0026amp; gas plants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eInstallation \u0026amp; Mounting Guidelines\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eStrict Slot Placement:\u003c\/b\u003e Install the double-slot module directly into the slot immediately to the right of the primary L7 controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eChassis Selection:\u003c\/b\u003e Fully compatible with standard and conformal coated chassis (1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 series).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Supply Sizing:\u003c\/b\u003e Verify 800 mA @ 5.1 VDC headroom when budgeting 1756-PA75 or 1756-PB75 backplane capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003ePackaging, Shipping \u0026amp; Warranty Terms\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePackage Contents:\u003c\/b\u003e 1x \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley\u003c\/strong\u003e \u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e partner module in factory ESD protective packaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFast Dispatch:\u003c\/b\u003e Ships out within 24 to 48 hours following verified order processing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGlobal Carriers:\u003c\/b\u003e Expedited air delivery via FedEx, UPS, and DHL Express.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12-Month Coverage:\u003c\/b\u003e Backed by a full 12-month replacement warranty against component defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eEngineering Buyer's Guide\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePairing Verification:\u003c\/b\u003e Ensure your primary processor ends with 'S' or 'SK' (e.g., 1756-L72S); standard L7 processors cannot pair with this card.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNo Standalone User Memory:\u003c\/b\u003e Do not purchase memory expansion cards for this unit; all project code resides in the primary partner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCapacitor Selection:\u003c\/b\u003e Match the ESM module type (1756-SPESMNSE vs. 1756-SPESMNRM) to your site's physical security guidelines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions (FAQ)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Does the \u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e require a separate Studio 5000 license or code download?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, project logic is downloaded directly to the primary GuardLogix processor, which automatically configures and synchronizes the safety partner.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Can I install this controller two slots away from the primary L7 safety processor?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, physical backplane interconnections require placement in the slot immediately adjacent to the right side of the primary unit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What causes a major safety fault indication on the partner controller front display?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Discrepancies during dual-execution evaluation, loose ESM installation, or physical backplane communication interruptions will trigger a fault.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this partner module compatible with GuardLogix L8 series controllers?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, the L8 safety controllers use a single-slot architecture with integrated safety cores and do not utilize the L7 partner hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: How do field engineers perform firmware updates on the partner controller?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Flashing the primary L7 controller via ControlFLASH automatically updates the partner firmware to matching revision levels.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eGlobal PLC Spare HUB's Insight\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eDuring a safety validation audit on an automotive press line, a field engineer reported persistent safety task trips whenever the system transitioned to high-speed cycling. The primary L73S controller was logging cross-checking timing faults with the \u003cstrong style=\"color: #0056b3;\"\u003e1756-L7SP\u003c\/strong\u003e partner card.\u003c\/p\u003e\n\u003cp\u003eOur technical team analyzed the chassis configuration and discovered that an expansion communication card installed next to the partner was generating excessive thermal build-up due to tight enclosure spacing. Once we re-arranged card placement to optimize airflow and replaced the aging 1756-SPESMNSE energy storage module, timing synchronization settled perfectly under 100% processing load. Always verify proper thermal spacing and ESM health when deploying GuardLogix SIL 3 safety architectures!\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013997584566,"sku":"1756-L7SP","price":156.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1756-L7SP-3.jpg?v=1788938845","url":"https:\/\/www.plcsparehub.com\/products\/1756-l7sp-controllogix-safety-partner-processor-allen-bradley-guardlogix","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}