{"product_id":"siemens-6es7417-4ht14-0ab0-central-processing-unit","title":"Siemens 6ES7417-4HT14-0AB0 Central Processing Unit","description":"\u003cp\u003eThe \u003cstrong\u003eSiemens 6ES7417-4HT14-0AB0\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e6ES7417-4HT14-0AB0\u003c\/strong\u003e Central Processing Unit, operates as a dedicated hardware component for high-availability hot-standby automation control within SIMATIC S7-400H fault-tolerant systems. The high-capacity hardware module manages synchronization variables, concurrent fieldbus execution profiles, and application-layer task structures across multi-segment subrack frames.\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\u003e6ES7417-4HT14-0AB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-400H (CPU 417H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany (DEU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.54 lbs (1.15 kg net mass profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard dual-width S7-400 rack module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C (Continuous chassis air convection boundaries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSourced via central S7-400 backplane power supply (PS 405\/407)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Memory\u003c\/td\u003e\n\u003ctd\u003e30 MB total RAM (15 MB dedicated data \/ 15 MB dedicated program)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Interfaces\u003c\/td\u003e\n\u003ctd\u003e1x MPI\/DP, 1x PROFIBUS DP, 2x Fiber Optic Sync Module Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer effective 10\/01\/2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Framework\u003c\/td\u003e\n\u003ctd\u003eInstalls into UR2-H split subracks or standard UR1\/UR2 frames\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSiemens Fault-Tolerant Execution\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity Integration:\u003c\/strong\u003e The dual-width processor utilizes dedicated parallel lines on the S7-400 backplane. It manages synchronous data handshakes between the master and standby partner over two dedicated fiber-optic synchronization modules, processing parallel memory blocks without inserting software instruction processing delays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Flash Compatibility and Program Partitioning:\u003c\/strong\u003e The 30 MB internal memory is divided into two strict 15 MB blocks to store variables and code separately. This hardware mapping provides absolute parity across the active system configuration, enabling bumpless failover timing sequences if a major network or localized hardware drop occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the strict hot-swap and configuration limitations for the CPU 417H synchronization ports?\u003c\/p\u003e\n\u003cp\u003eA: The two fiber-optic sync ports on the faceplate must never be unseated or disconnected during active run operations. Removing a synchronization cable while the H-system is in redundant mode breaks the data sync pathway, causing the backup unit to execute a fault-trap shutdown sequence.\u003c\/p\u003e\n\u003cp\u003eQ: How does the memory allocation behave when expanding system data storage via flash cards?\u003c\/p\u003e\n\u003cp\u003eA: The 30 MB integrated RAM is fixed at the hardware level. To scale long-term storage or retain system blocks during long-term power drops, a compatible SIMATIC S7-400 Memory Card (Flash EPROM or RAM) must be inserted into the front slot interface to expand non-volatile load memory.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Layout Alignment, Clearance Constraints, and Mechanical Seating:\u003c\/strong\u003e Insert the bottom hooks of the 2.54 lbs module into the tracking slots of the UR2-H or standard S7-400 rack subframe. Pivot the module upward firmly until the backplane multipin arrays mate flush with the motherboard connectors, then tighten the top and bottom captive structural screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation, Wireway Constraints, and Shield Grounding:\u003c\/strong\u003e Route the Profibus DP and MPI network drop cables through isolated low-voltage tracks completely separated from high-potential AC phase wiring or variable speed motor drives. Ensure the fiber-optic sync cables are routed inside protective conduits that do not exceed their minimum allowed bending radius specification.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":45141662400627,"sku":"6ES7417-4HT14-0AB0","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-30_16-21-19_85b1fb8c-8aec-4d94-aeae-45822000a152.png?v=1782811566","url":"https:\/\/www.dcssupplier.com\/ar\/products\/siemens-6es7417-4ht14-0ab0-central-processing-unit","provider":"DcsSupplier Limited","version":"1.0","type":"link"}