{"product_id":"yokogawa-sdv531-l23-digital-output-module","title":"Yokogawa SDV531-L23 Digital Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa SDV531-L23\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSDV531\u003c\/strong\u003e Digital Output Module, operates as a dedicated hardware component for driving 24 VDC Discrete Field Actuators within ProSafe-RS Safety Instrumented System platforms. It controls high-integrity digital output signals to solenoids and interlock relays while executing internal diagnostics.\u003c\/p\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\u003eSDV531-L23\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\u003e0.28 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e75 mm x 114 mm x 90 mm\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e280 mA max at 5 VDC, 140 mA max at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS Safety Instrumented System (SIS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 Digital Output Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Rating\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal, up to 25 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load Current\u003c\/td\u003e\n\u003ctd\u003e0.6 A per line (4.8 A total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Load Current\u003c\/td\u003e\n\u003ctd\u003e35 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Response Time\u003c\/td\u003e\n\u003ctd\u003eLess than or equal to 30 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Withstand\u003c\/td\u003e\n\u003ctd\u003e2 kV AC for 1 minute (signal to system ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC (minimum 5 A requirement)\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 Loop Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe SDV531-L23 incorporates channel-to-channel isolation parameters to prevent ground potential variations from corrupting output switching circuits across the 8 discrete channels. Designed to interface with safety instrumented loops, the module continuously monitors line integrity to detect short-circuit and open-circuit wire conditions. Pass-through current and voltage isolation loops ensure that physical faults on individual field lines do not compromise system backplane communication or propagate to adjacent safety logic execution paths.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What happens to the outputs on the SDV531-L23 during an internal module diagnostic failure?\u003c\/p\u003e\n\u003cp\u003eA: Upon detection of an unrecoverable internal hardware fault or CPU timeout, the module executes a fail-safe state release, de-energizing all 8 digital output channels to bring connected field devices to their predefined safe states.\u003c\/p\u003e\n\u003cp\u003eQ: What power source requirements exist for powering external load loops on the SDV531-L23?\u003c\/p\u003e\n\u003cp\u003eA: An external field power supply of 24 VDC with a current rating of at least 5 A must be connected to feed the field-side load driver circuitry independently from internal system logic power.\u003c\/p\u003e\n\u003cp\u003eQ: How is galvanic isolation structured between system logic and field wiring on this unit?\u003c\/p\u003e\n\u003cp\u003eA: Optical and transformer-coupled isolation barriers provide a withstand rating of 2 kV AC for 1 minute between field signal lines and internal system ground to protect system backplane electronics.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the module onto the dedicated panel or subnode rack, ensuring the retaining mechanical latches engage completely to lock the assembly against vibration.\u003c\/li\u003e\n\u003cli\u003eTerminate all 24 VDC field wiring to the signal cable interface adapter, maintaining wire gauge sizing compliant with the 0.6 A per line maximum current load limit.\u003c\/li\u003e\n\u003cli\u003eConnect the external 24 VDC power source to dedicated power terminals, verifying correct polarity before applying system power.\u003c\/li\u003e\n\u003cli\u003eRoute field digital output conductors separately from high-voltage AC cables and variable frequency drive motor leads to prevent capacitive noise coupling.\u003c\/li\u003e\n\u003cli\u003eBond system chassis ground connections using a low-impedance copper strap to establish a stable reference for the 2 kV AC isolation rating.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53327279292725,"sku":"SDV531-L23","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/SDV531-L23.png?v=1787103439","url":"https:\/\/www.5gplc.com\/products\/yokogawa-sdv531-l23-digital-output-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}