{"product_id":"siemens-simatic-s7-1500-cpu-1517h-high-availability-plc","title":"SIEMENS - SIMATIC S7-1500 - CPU 1517H High-Availability PLC","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eSiemens SIMATIC S7-1500 CPU 1517H controllers are high-performance redundant PLC CPUs designed for industrial automation applications where \u003cstrong\u003ehigh availability and continued process operation\u003c\/strong\u003e are critical.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe CPU 1517H family uses a coordinated two-CPU architecture in which process-relevant data is synchronized between the controllers through dedicated \u003cstrong\u003eH-SYNC communication\u003c\/strong\u003e. If the process-controlling CPU or its associated path fails, the redundant partner can maintain or assume process control according to the configured S7-1500H system architecture.\u003c\/p\u003e\n\u003cp\u003eDepending on the applicable CPU 1517H generation, the controllers provide multiple PROFINET and Industrial Ethernet interfaces together with dedicated H-SYNC channels. Fiber-optic H-SYNC architectures can support physically separated controller installations, including long-distance synchronization configurations of up to 10 km with the appropriate Siemens synchronization components. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCPU 1517H controllers are suited to process plants, production systems, infrastructure automation, utilities and other applications where controller redundancy, network availability and reduced process interruption are important design requirements.\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"CPU 1517H-3 PN - High Availability - 2MB\/8MB Memory - PROFINET + H-SYNC - 24V DC - 6ES7517-3HP00-0AB0","offer_id":49538087616739,"sku":"ID 01030028","price":19898.99,"currency_code":"NZD","in_stock":true},{"title":"CPU 1517H-4 PN - High Availability - 4MB\/50MB Memory - 3× PROFINET + H-SYNC - 24V DC - 6ES7517-4HQ10-0AB0","offer_id":49538087649507,"sku":"ID 01030029","price":20688.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/5956\/8611\/files\/Screenshot_2026-08-15_at_4.57.30_PM.png?v=1786771140","url":"https:\/\/www.electrotk.com\/products\/siemens-simatic-s7-1500-cpu-1517h-high-availability-plc","provider":"Electrotk","version":"1.0","type":"link"}