{"product_id":"st5-a-yokogawa-plc-module-discontinued-refurbished-stock","title":"ST5*A YOKOGAWA PLC Module | Discontinued \u0026 Refurbished Stock","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA ST5*A\u003c\/strong\u003e is a legacy PLC board module formerly utilized in industrial machine control and rack-based automation systems. As this unit has been officially discontinued by the manufacturer, it is primarily sought for maintenance, repair, and operational continuity of existing legacy infrastructure.\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\u003eST5*A\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\u003eCategory\u003c\/td\u003e\n\u003ctd\u003ePLC Module \/ Rack-based Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.36 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus\u003c\/td\u003e\n\u003ctd\u003eDiscontinued\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eSubject to supplier terms (e.g., Radwell 2-Year)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Application and Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe ST5*A serves as a critical component in older PLC racks, providing the interface and logic handling required to execute machine control sequences. Because this module is no longer in active production, it is typically deployed as a direct, \"drop-in\" replacement to resolve hardware failures in aging control systems without requiring a full platform migration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Since the manufacturer has discontinued the ST5*A, what are the primary risks of using refurbished units?\u003c\/p\u003e\n\u003cp\u003eA: The main risks involve component aging and potential degradation of electrolytic capacitors or solder joints over extended service lives. It is recommended to perform bench testing and verify board health before integrating the unit into a critical production loop.\u003c\/p\u003e\n\u003cp\u003eQ: Will the factory warranty still apply?\u003c\/p\u003e\n\u003cp\u003eA: No, manufacturer warranties are generally void for discontinued components. Reliance must be placed on third-party warranties (such as the 2-year support provided by distributors like Radwell) to ensure functionality upon receipt.\u003c\/p\u003e\n\u003ch3\u003eField Installation and Best Practices\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatic Discharge Precautions:\u003c\/strong\u003e As this is a legacy PCB-based module, it is highly susceptible to Electrostatic Discharge (ESD). Always handle the board by the edges or the frame, and use a grounded wrist strap when inserting it into the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Inspection:\u003c\/strong\u003e Before seating the ST5*A, inspect the PLC rack backplane for bent pins or debris. Older systems often suffer from connector oxidation, which can cause intermittent signal errors even with a functional module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation Verification:\u003c\/strong\u003e Verify that the revision level of the replacement ST5*A matches your original unit. Older PLC systems can be sensitive to hardware variations; installing a slightly different revision may require parameter adjustments in the PLC configuration software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreventative Maintenance:\u003c\/strong\u003e If this module is part of a critical system, treat the replacement as an opportunity to clean the surrounding rack components and check for signs of moisture or dust ingress, which often contribute to the premature failure of legacy electronics.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49182345789692,"sku":"ST5*A","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/ST5A.jpg?v=1781143673","url":"https:\/\/www.electronicplc.com\/products\/st5-a-yokogawa-plc-module-discontinued-refurbished-stock","provider":"Electronic PLC","version":"1.0","type":"link"}