{"product_id":"yokogawa-ssc60d-s2521-prosafe-rs-duplexed-safety-control-unit","title":"Yokogawa SSC60D-S2521 ProSafe-RS Duplexed Safety Control Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eYokogawa ProSafe-RS Safety Control Stations utilize dedicated central processing units to execute safety instrumented functions across process automation systems. The \u003cstrong\u003eYokogawa SSC60D-S2521\u003c\/strong\u003e is a rack-mountable duplexed safety control unit designed for operation on Vnet\/IP control networks. Functioning as a high-reliability CPU node within the ProSafe-RS Safety Instrumented System (SIS), the unit manages safety logic execution and continuous diagnostics to meet Safety Integrity Level (SIL) 3 requirements.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSSC60D-S\u003c\/strong\u003e duplexed control architecture incorporates redundant hardware channels to maintain continuous control execution and plant protection during component maintenance or single-fault events. It features dual-redundant Vnet\/IP network interfaces (BUS1 and BUS2) and interfaces with safety node I\/O units through redundant ESB bus links using SEC402 coupler modules. The controller integrates with FAST\/TOOLS SCADA systems, CENTUM DCS, and Plant Resource Manager (PRM), while supporting Modbus master\/slave protocols over serial and Ethernet communication modules.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCertified by TÜV for SIL 3 safety application compliance in accordance with IEC 61508.\u003c\/li\u003e\n\u003cli\u003eDual-redundant CPU module architecture for fault-tolerant safety control operation.\u003c\/li\u003e\n\u003cli\u003eDual-redundant Vnet\/IP control network interfaces with automatic path switchover.\u003c\/li\u003e\n\u003cli\u003eConnects up to 13 I\/O safety node units via ESB bus using SEC402 bus coupler modules.\u003c\/li\u003e\n\u003cli\u003eIntegrated Sequence-of-Events Recorder (SOER) functionality for process diagnostic logging.\u003c\/li\u003e\n\u003cli\u003eSupports Inter-SCS safety communication for distributed SIL 3 safety loops across stations.\u003c\/li\u003e\n\u003cli\u003eModbus master and slave subsystem communication capability via serial and Ethernet interface modules.\u003c\/li\u003e\n\u003cli\u003eStandard operating temperature range designed for cabinet-mounted rack installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEmergency Shutdown Systems (ESD)\u003c\/li\u003e\n\u003cli\u003eBurner Management Systems (BMS)\u003c\/li\u003e\n\u003cli\u003eFire and Gas Detection and Protection Systems (F\u0026amp;G)\u003c\/li\u003e\n\u003cli\u003eHigh Integrity Pressure Protection Systems (HIPPS)\u003c\/li\u003e\n\u003cli\u003eCritical Process Safety Loops in Oil, Gas, Petrochemical, and Power Facilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSSC60D-S2521\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS Safety Instrumented System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Type\u003c\/td\u003e\n\u003ctd\u003eDuplexed Safety Control Unit (Standard Rack-Mountable Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Interface\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP (Dual-Redundant BUS1 \/ BUS2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectable I\/O Nodes\u003c\/td\u003e\n\u003ctd\u003eUp to 13 nodes (via SEC402 ESB bus coupler module \u0026amp; CFS1350 package)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESB Bus Network Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbits\/sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 40 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage \/ Transportation Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\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\u003ctr\u003e\n\u003ctd\u003eTemperature Change Rate\u003c\/td\u003e\n\u003ctd\u003eWithin +-10 degC\/h (operation), +-20 degC\/h (storage\/transportation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Voltage Range\u003c\/td\u003e\n\u003ctd\u003e100 to 120 V AC (-15% to +10%), 220 to 240 V AC (-15% to +10%), or 24 V DC (-10% to +20%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Frequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz +- 3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Withstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC for 1 minute (AC models), 500 V AC for 1 minute (24 V DC models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e20 M ohms at 500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eContinuous: 1.75 mm (5 to 9 Hz), 4.9 m\/s2 (9 to 150 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpact Resistance\u003c\/td\u003e\n\u003ctd\u003e147 m\/s2, 11 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosive Gas Rating\u003c\/td\u003e\n\u003ctd\u003eANSI\/ISA S71.04 G3 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Altitude\u003c\/td\u003e\n\u003ctd\u003e2000 m above sea level or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Mounting:\u003c\/strong\u003e Mount the rack-type safety control unit inside a lockable metal cabinet to satisfy standard safety and EMC protection requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements:\u003c\/strong\u003e Provide independent grounding with a grounding resistance of 100 ohms or less.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork Cabling:\u003c\/strong\u003e Connect Vnet\/IP network buses BUS1 and BUS2 through independent Layer 2 switches. Ensure both switches are not powered down simultaneously during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESB Bus Connections:\u003c\/strong\u003e Maintain dedicated ESB bus cable (YCB301) lengths within 10 m each for upper and lower ports on the SEC402 coupler module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Line Protection:\u003c\/strong\u003e Install dedicated circuit breakers on the power distribution board conforming to UL 489 \/ CSA C22.2 No. 5 or EN 60947-1 \/ EN 60947-3.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Safety:\u003c\/strong\u003e Certified SIL 3 in accordance with IEC 61508 by TÜV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLC Standard:\u003c\/strong\u003e Compliant with IEC 61131-2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Standards:\u003c\/strong\u003e Compliant with EN 54, EN 298, EN 50156-1, IEC 61511-1, IEC 62061, NFPA 85, NFPA 72.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Safety:\u003c\/strong\u003e Compliant with CAN\/CSA-C22.2 No.61010-1 (100-120 V AC), CE Marking Low Voltage Directive (EN 61010-1, EN 61010-2-030).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC Conformity:\u003c\/strong\u003e CE Marking EMC Directive (EN 55011 Class A Group 1, EN 61000-6-2, EN 61000-3-2, EN 61000-3-3), C-Tick Marking (EN 55011 Class A Group 1), KC Marking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Locations:\u003c\/strong\u003e FM Non-Incendive (Class I Division 2 Groups A, B, C, D T4), Type \"n\" Ex protection (II 3 G Ex nA IIC T4 Gc \/ II 3 G Ex nA nC IIC T4 Gc).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53592524030315,"sku":"SSC60D-S2521","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/SSC60D-S2521_2.jpg?v=1784728717","url":"https:\/\/www.plcprotech.com\/products\/yokogawa-ssc60d-s2521-prosafe-rs-duplexed-safety-control-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}