{"product_id":"yokogawa-ssc50d-f2524-prosafe-rs-series-datasheet-technical-manual","title":"Yokogawa  SSC50D-F2524 ProSafe-RS Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eYokogawa SSC50D-F2524 ProSafe-RS Duplexed Safety Control Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-reliability safety applications in the ProSafe-RS Safety Instrumented System (SIS), the \u003cstrong\u003eYokogawa SSC50D-F2524\u003c\/strong\u003e (\u003cstrong\u003eSSC50D\u003c\/strong\u003e Duplexed Safety Control Unit) 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\u003eSuffix Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunctional Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC50D\u003c\/td\u003e\n\u003ctd\u003eBase model designation for the Duplexed Safety Control Unit chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-F\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP communication protocol interface configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eDual-redundant utility power supply architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eBasic construction type with no integrated explosion protection metrics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e24 V DC system input voltage rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3 conformal coating with expanded environmental temperature compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\/CFS1100\u003c\/td\u003e\n\u003ctd\u003eIntegrated Safety Control Function License activation key\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\u003eSSC50D-F2524\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 to 2.5 kg maximum variance depending on populated sub-cards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard compact 19-inch rack-mount or wall-bracket footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C (ISA G3 compliant environments)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~6 W typical operating load draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC nominal input (Supports dual-redundant power configurations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 certified by TUV Rheinland (IEC 61508 compliance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP high-speed deterministic network interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNode Node Capacity\u003c\/td\u003e\n\u003ctd\u003eSupports up to 9 safety node units for expanded I\/O tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input Profiles\u003c\/td\u003e\n\u003ctd\u003eVoltage loops (0-10 V) and Current loops (4-20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Output Profiles\u003c\/td\u003e\n\u003ctd\u003eAnalog user-selectable ranges: 4-20 mA or 0-10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Scan Precision\u003c\/td\u003e\n\u003ctd\u003e+-0.1% of Full Scale accuracy window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response Velocity\u003c\/td\u003e\n\u003ctd\u003eLess than 300 ms loop execution for a full-scale change\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHigh-Reliability Safety Control (SIS) Properties\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa SSC50D-F2524 achieves SIL3 certification by executing safety logic within a duplexed, dual-CPU processor pipeline that enforces hardware-level fault tolerance. The unit uses a fault-safe state execution engine to continuously verify synchronized calculation steps between the internal processors. If a discrepancy or internal bus failure is detected, built-in self-diagnostics isolate the fault and trigger an immediate fail-safe state execution or hot-swap sequence. This duplexed layout, combined with full galvanic isolation across the backplane data tracks, ensures that single-point electronic failures are detected instantly without degrading active emergency shutdown (ESD) or fire and gas (F\u0026amp;G) protection matrices.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the duplexed processor setup coordinate fault detection during active safety scans?\u003c\/p\u003e\n\u003cp\u003eA: The control unit runs dual-redundant processing lines where both CPUs calculate the safety logic in lockstep. Internal hardware cross-checking circuits compare data registers continuously; any processing fault or timing drift triggers automated diagnostics to switch tasks to the standby processor or force the network into a defined fail-safe state.\u003c\/p\u003e\n\u003cp\u003eQ: What are the exact physical and software constraints when integrating additional safety node units?\u003c\/p\u003e\n\u003cp\u003eA: The hardware architecture supports up to 9 downstream safety node units connected over the Vnet\/IP network path. To register these expansion nodes, the primary controller must run software version R4.01 or later with an active CFS1100 Safety Control Function License enabled in the system matrix.\u003c\/p\u003e\n\u003cp\u003eQ: How does the integrated memory protection sub-layer behave during a sudden drop in 24 V DC input power?\u003c\/p\u003e\n\u003cp\u003eA: The module contains a hardware-level memory protection circuit that detects incoming voltage drops on the 24 V DC rails. When a power loss crosses the low threshold, the system writes all current safety states, logic variables, and error logs directly to non-volatile storage before the hardware shuts down, preventing data corruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Rack Seating:\u003c\/strong\u003e Insert the duplexed controller into a standard 19-inch instrumentation rack or fix it to a flat wall array using the designated mounting brackets. Tighten all chassis fasteners completely to ground the frame to the rack and minimize low-frequency industrial vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVnet\/IP Redundant Networking:\u003c\/strong\u003e Connect the primary and secondary high-speed Vnet\/IP communication lines to the independent ports on the front interface. Use separate, shielded Cat-5e or fiber routing paths to ensure a single physical cable break cannot isolate the safety node.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Conductor Separation:\u003c\/strong\u003e Terminate the primary and standby 24 V DC utility feeds using separate power terminal cables. Route these lines through different wire tracks to prevent a localized short-circuit or cabinet fire from taking down both power inputs simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Airflow Clearance:\u003c\/strong\u003e Keep the ventilation paths directly above and below the rack chassis completely clear. Unobstructed airflow is required to keep ambient temperatures within the -20 to +60 deg C operating window, preventing the internal components from overheating in high-density configurations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43503847768154,"sku":"SSC50D-F2524","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/364._dab95394-681c-4030-a23b-17d7c2cf28a2.jpg?v=1781572696","url":"https:\/\/www.spareoil.com\/es\/products\/yokogawa-ssc50d-f2524-prosafe-rs-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}