{"product_id":"yokogawa-rs71-c-dcs-module","title":"Yokogawa RS71*C DCS Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa RS71*C\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eRS71*C\u003c\/strong\u003e DCS Module, operates as a dedicated hardware component for field signal processing and real-time data communication within Yokogawa DCS automation platforms. Operating on a 24 VDC power supply, the unit interfaces up to 128 configurable I\/O points—supporting analog, digital, pulse, and serial communication paths—driven by onboard processing memory (512 KB to 4 MB RAM, 256 KB to 2 MB Flash) across operating temperatures from -40 to 70 deg C.\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\u003eCode Segment\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003ePosition \/ Option\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunctional Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRS71\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eMulti-Function Communication \u0026amp; Control Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e*****\u003c\/td\u003e\n\u003ctd\u003eOption \/ Coating Suffix\u003c\/td\u003e\n\u003ctd\u003eFunctional option \/ Conformal coating specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneration \/ Version\u003c\/td\u003e\n\u003ctd\u003eHardware revision designator\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\u003eRS71*C\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\u003e0.5 kg (1.10 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 mm x 100 mm x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eOperating Voltage: 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e512 KB to 4 MB RAM \/ 256 KB to 2 MB Flash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Point Density\u003c\/td\u003e\n\u003ctd\u003eSupports up to 128 Configurable Points\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\u003eHazardous Certifications\u003c\/td\u003e\n\u003ctd\u003eATEX, IECEx, FM, CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Languages\u003c\/td\u003e\n\u003ctd\u003eLadder Logic, Structured Text, Function Block Diagram\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquipment Category\u003c\/td\u003e\n\u003ctd\u003eDistributed Control System (DCS) Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eField Signal Routing \u0026amp; DCS Loop Integration\u003c\/h3\u003e\n\u003cp\u003eThe RS71*C executes deterministic data transfer between field instrument networks and central control processors. Built-in signal conditioning channels maintain full pass-through support for 4-20 mA HART loop protocol telemetry, allowing dynamic digital variables to superimpose onto analog control lines without signal attenuation. Galvanic channel-to-channel isolation prevents ground loop interference and protects central bus architecture from common-mode voltage spikes in hazardous area installations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What purpose does the asterisk (\u003ci\u003e) suffix serve in the RS71\u003c\/i\u003eC model code?\u003c\/p\u003e\n\u003cp\u003eA: The asterisk represents specific factory-configured hardware options, such as conformal coating for corrosive environments or specialized memory sizing options.\u003c\/p\u003e\n\u003cp\u003eQ: Is the RS71*C rated for installation in hazardous industrial atmospheres?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module carries ATEX, IECEx, FM, and CSA hazardous location certifications, allowing installation in designated hazardous zones when installed per regional electrical codes.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation:\u003c\/strong\u003e Fully isolate and lock out the 24 VDC primary power supply before inserting, removing, or wiring the RS71*C module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Seating:\u003c\/strong\u003e Align the board edges with the chassis mounting guide rails and push firmly until the locking mechanisms seat fully into the backplane connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Location Compliance:\u003c\/strong\u003e Verify that all field wiring meets ATEX\/IECEx standards for non-incendive or intrinsically safe loops, ensuring proper cable gland sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Wire Grounding:\u003c\/strong\u003e Ground all instrument signal cable shields at a single functional earth point on the cabinet bus bar to eliminate ground loop currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Clearance:\u003c\/strong\u003e Maintain minimum required convection airflow spacing around the module housing to prevent heat buildup up to the 70 deg C thermal limit.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52734398267672,"sku":"RS71*C","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/PW482-10S2_8534b38f-ce73-41e5-a30b-df4b3f563578.png?v=1789871092","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-rs71-c-dcs-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}