{"product_id":"yokogawa-ssc60d-s2121-prosafe-rs-sil3-duplexed-safety-control-unit","title":"Yokogawa SSC60D-S2121 ProSafe-RS SIL3 Duplexed Safety Control Unit","description":"\u003ch2\u003eYokogawa SSC60D-S2121 ProSafe-RS Safety Control Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for deterministic safety logic execution in ProSafe-RS Safety Instrumented System architectures, the \u003cstrong\u003eYokogawa SSC60D-S2121\u003c\/strong\u003e (\u003cstrong\u003eSSC60D\u003c\/strong\u003e Safety Control Unit) provides direct physical and electrical execution. The module operates as the primary SIL3-certified safety logic solver across Vnet\/IP networks, managing real-time emergency shutdown sequences and fire-and-gas protection loops.\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\u003eOption \/ Suffix\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDesignation\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eEngineering Function\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSSC60D\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Safety Control Unit\u003c\/td\u003e\n\u003ctd\u003eDuplexed redundant safety logic processor for ProSafe-RS platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-S2121\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOption Code Configuration\u003c\/td\u003e\n\u003ctd\u003eSpecifies factory conformal coating and dual-redundant communication channels\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\u003eSSC60D-S2121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e103 x 51 x 54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.0 W (5 VDC at 600 mA nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Safety Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 compliant (IEC 61508 standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eSynchronized duplexed dual-processor system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Network Protocol\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP Safety Bus \/ ESB Bus compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Bus Speed\u003c\/td\u003e\n\u003ctd\u003e100 Mbps full duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation between logic processing and field network\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eConformal coating (Suffix -S2121)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic System\u003c\/td\u003e\n\u003ctd\u003eIntegrated continuous hardware self-test, watchdog timers, LED status array\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance Standard\u003c\/td\u003e\n\u003ctd\u003eCE, UL, FM certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and Fail-Safe Processing\u003c\/h3\u003e\n\u003cp\u003eThe safety control unit integrates high-grade optical isolation barriers between central processing logic and field communications, isolating core processing hardware from field-induced electrical surges and ground potential differences. Operating within a dual-redundant architecture, the module executes synchronized parallel safety algorithms to maintain continuous evaluation of critical process loops. Upon detecting an internal processing fault or memory corruption, hardware-level diagnostic routines initiate seamless switchover to the secondary redundant processor path, executing fail-safe state actions without causing false process trips.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the duplex processor architecture handle internal hardware faults without disrupting active safety loops?\u003c\/p\u003e\n\u003cp\u003eA: The module executes synchronized parallel logic across two independent processing channels. Internal hardware self-checking circuits compare output execution frames in real time; if a fault develops on the primary processor, control transfers instantly to the secondary unit without interrupting output signal states or causing nuisance shutdowns.\u003c\/p\u003e\n\u003cp\u003eQ: What environmental operating restrictions apply to the conformal coating on the S2121 suffix variant?\u003c\/p\u003e\n\u003cp\u003eA: The S2121 option code designates factory-applied conformal coating engineered to protect internal printed circuit board traces against moisture condensation, industrial dust, and chemical vapors. Technicians must ensure cabinet operating temperatures remain strictly within -20 to +55 deg C to prevent thermal degradation of the protective layer.\u003c\/p\u003e\n\u003cp\u003eQ: What precautions must technicians observe when hot-swapping a redundant safety control module?\u003c\/p\u003e\n\u003cp\u003eA: Before unseating the target module, technicians must verify via front-panel status LEDs and system diagnostics that the secondary redundant unit holds active, error-free safety control. Handle the module carefully to avoid static discharge across exposed edge connectors during extraction.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the unit securely into its designated rack slot using standard retaining hardware, verifying that backplane pin connections seat fully to ensure stable signal continuity. Maintain separation between high-voltage power conduits and low-voltage Vnet\/IP or ESB bus optical cables to prevent electromagnetic interference. Connect all system cable shielding directly to the cabinet ground bus bar via low-impedance copper straps to maintain uniform earth grounding across all safety instrumented loops.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43865985908826,"sku":"SSC60D-S2121","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/428._f7856741-ef36-4fc7-9a9d-3d10fc5faae2.jpg?v=1787105773","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ssc60d-s2121-prosafe-rs-sil3-duplexed-safety-control-unit","provider":"SpareOil Automation","version":"1.0","type":"link"}