{"product_id":"yokogawa-rs71-c-dcs-module","title":"Yokogawa RS71*C DCS Module","description":"\u003cp\u003eConfigured for field device communication and control signal processing in industrial DCS platforms, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa RS71*C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003eRS71*C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDCS Module) provides direct physical and electrical execution of distributed I\/O logic.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRS71*C:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBase model designation for high-density I\/O communication module. The wildcard \"*\" denotes configuration-specific hardware revision levels regarding onboard memory capacity and protocol support.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS71*C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYokogawa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJapan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e130 × 100 × 50 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 deg C to 70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eI\/O Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128 points (Configurable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProcess Control and DCS Instrumentation Characteristics\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e4-20 mA HART loop protocol:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe RS71*C architecture supports transparent pass-through of HART diagnostic data from connected field instruments, allowing for the simultaneous acquisition of process variables and secondary HART parameters within the DCS environment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChannel-to-channel isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eElectrical separation is maintained across the 128 configurable I\/O points to prevent common-mode noise and ground potential differences from affecting signal fidelity. This isolation is necessary when mixing analog and digital signals within the same I\/O rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCold junction compensation (CJC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module maintains thermal stability when integrated with thermocouple interface assemblies, ensuring accurate CJC execution for temperature measurement loops despite ambient fluctuations in the control cabinet.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA connectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module serves as a deterministic gateway for industrial fieldbus networks, ensuring synchronous data exchange between decentralized field devices and the host controller interface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the RS71*C support hot-swapping during runtime?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports hot-insertion and extraction within the DCS rack. Ensure that the associated I\/O channels are inhibited or bypassed in the system configuration software before physical removal to prevent triggering process alarms or hardware diagnostic errors.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 128 I\/O points be simultaneously configured for analog and pulse inputs?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the I\/O points are software-configurable. Users can allocate the 128 points among analog, digital, pulse, or communication functions, provided that the total hardware point load remains within the power and processing limits defined by the specific revision of the RS71*C.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSeat the module firmly into the designated DCS backplane slot. Verify that all bus connectors are fully engaged to guarantee mechanical stability and signal integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBond the module chassis to the cabinet earth bus using a low-impedance connection. This is mandatory for maintaining the effectiveness of EMI shielding and satisfying hazardous location (ATEX\/IECEx\/FM\/CSA) earthing requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoute signal conductors through dedicated trays, maintaining a minimum 150 mm separation from high-voltage AC or VFD motor cabling. Utilize shielded twisted-pair conductors for all analog and pulse inputs to prevent inductive coupling and maintain measurement precision.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45176223465587,"sku":"RS71*C","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-07-07_09-56-39_63a3dc71-6ca2-4148-86ac-6ea10b55321f.png?v=1783402868","url":"https:\/\/www.dcssupplier.com\/ar\/products\/yokogawa-rs71-c-dcs-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}