{"product_id":"yokogawa-sdv544-s23-prosafe-rs-safety-digital-output-module","title":"Yokogawa SDV544-S23 ProSafe-RS Safety Digital Output Module","description":"\u003ch2\u003eYokogawa SDV544-S23 Safety Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-integrity actuator command execution in ProSafe-RS platforms, the \u003cstrong\u003eYokogawa SDV544-S23\u003c\/strong\u003e (\u003cstrong\u003eSDV544\u003c\/strong\u003e Safety Digital Output Module) provides direct physical\/electrical execution across 24 VDC field control loops.\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\u003eSDV544-S23 (Base Model: SDV544)\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\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32 x 127 x 127 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e450 mA at 5 VDC backplane supply \/ 150 mA at 24 VDC external supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels (isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Output Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (external loop power required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Current\u003c\/td\u003e\n\u003ctd\u003e0.6 A per channel (8 A total aggregate module load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Compliance\u003c\/td\u003e\n\u003ctd\u003eSIL3 (IEC 61508 certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 VAC between output logic and system backplane for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e40 ms maximum (logic command to output transition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Isolation Features\u003c\/h3\u003e\n\u003cp\u003eThe SDV544-S23 executes safe state de-energization for solenoid valves, trip relays, and alarm indicators. Each channel relies on internal galvanic channel-to-system isolation to suppress ground loop current and prevent external field voltage surges from damaging central processing units. Furthermore, active pulse-test diagnostic routines continuously verify internal switching transistors and field wiring loop continuity without disturbing connected inductive loads. Under nominal operating conditions, clean 24 VDC loop distribution maintains high noise rejection across long field runs, ensuring accurate actuation times during critical shutdown sequences.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does replacing an SDV544-S23 module require shutting down the entire ProSafe-RS node?\u003c\/p\u003e\n\u003cp\u003eA: Maintenance teams can hot-swap the SDV544-S23 online while the safety node remains powered, provided the system runs a dual-redundant I\/O configuration. The active secondary module assumes loop control during the exchange process.\u003c\/p\u003e\n\u003cp\u003eQ: How does internal pulse testing prevent false trips on connected solenoid valves?\u003c\/p\u003e\n\u003cp\u003eA: The module injects microsecond-duration off-pulses into the output circuit to evaluate switching response. Because the pulse duration is significantly shorter than the mechanical response threshold of standard relays and solenoids, the field device remains continuously energized during diagnostic execution.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the SDV544-S23 vertically into an assigned slot of an FIO safety node unit inside a IP54-rated control enclosure. Connect external 24 VDC field wiring to the pressure clamp terminal block or dedicated signal cable adapter. Technicians must route low-voltage 24 VDC output conductors separately from high-voltage AC lines to prevent inductive coupling. Connect the primary cabinet grounding strap directly to the earth bar and ensure the external 24 VDC field power supply floats relative to protective earth to maximize system noise immunity.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43787213668442,"sku":"SDV544-S23","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/664._b5fea8b8-8b8f-49a3-b7e5-0f731316f38c.jpg?v=1785895827","url":"https:\/\/www.spareoil.com\/ar\/products\/yokogawa-sdv544-s23-prosafe-rs-safety-digital-output-module","provider":"SpareOil Automation","version":"1.0","type":"link"}