{"product_id":"6es7414-4hm14-0ab0-siemens-s7-400h-cpu-414h-new-original-stock","title":"6ES7414-4HM14-0AB0 Siemens S7-400H CPU 414H | New \u0026 Original Stock","description":"\u003ch2\u003eSiemens 6ES7414-4HM14-0AB0 SIMATIC S7-400H CPU 414H\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSiemens 6ES7414-4HM14-0AB0\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCPU 414H\u003c\/strong\u003e SIMATIC S7-400H Central Processing Unit, operates as a dedicated hardware component for discrete data routing and subsystem electrical distribution within S7-400H and S7-400F\/FH redundant and fault-tolerant automation architectures. The module executes synchronous cyclical control logic over distributed I\/O frames, processing bit instructions at 0.045 microseconds and floating-point logic at 0.135 microseconds. Dual embedded synchronization interfaces establish dedicated hardware-level tracking hooks to maintain continuous data alignment between twin sub-units across the system backplane.\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\u003e6ES7414-4HM14-0AB0\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.995 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e50 x 290 x 219 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e6 W typical power loss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWork Memory\u003c\/td\u003e\n\u003ctd\u003e2.8 MB (1.4 MB program, 1.4 MB data)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Memory Expansion\u003c\/td\u003e\n\u003ctd\u003eFEPROM slot support up to 64 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw (5 VDC)\u003c\/td\u003e\n\u003ctd\u003eTyp. 1.4 A, max. 1.7 A from backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw (24 VDC)\u003c\/td\u003e\n\u003ctd\u003eMax. 150 mA per DP interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Interfaces\u003c\/td\u003e\n\u003ctd\u003e1 x MPI\/DP, 1 x DP, 2 x Synchronization Module interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Unit Limit\u003c\/td\u003e\n\u003ctd\u003eMax. 21 expansion frames\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware Baseline\u003c\/td\u003e\n\u003ctd\u003eVersion V4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngineering Environment\u003c\/td\u003e\n\u003ctd\u003eSTEP 7 V5.3 SP2 or higher with hardware update\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and Network Velocity Profiles\u003c\/h3\u003e\n\u003cp\u003eThe processing module integrates internal backplane bus communication velocity licenses optimized to handle large payload data structures across deterministic networks. The device provisions an independent 1 x MPI\/DP and 1 x dedicated DP interface to govern PROFIBUS DP and MPI node communications, shifting data at standard fieldbus rates. Real-time Configuration in RUN (CiR) functionality manages backplane bus allocation loops during active operation, adding an incremental baseline processing penalty of 100 ms with an additional 25 microseconds per I\/O byte to update parameters without interrupting system execution loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific hardware constraints govern the synchronization interfaces during a failover sequence?\u003c\/p\u003e\n\u003cp\u003eA: The two specialized synchronization ports require fiber-optic links to form a direct peer-to-peer connection between dual CPU 414H nodes. The internal hardware logic matches memory tables continuously; upon a primary unit fault, the standby unit takes over the backplane bus within a zero-bounce window without altering current internal register states.\u003c\/p\u003e\n\u003cp\u003eQ: How is retentive data maintained on the CPU 414H when the main rack power supply is disconnected?\u003c\/p\u003e\n\u003cp\u003eA: Retention relies on the rack-level backplane battery system. The CPU draws a typical backup current of 190 microamps (max. 660 microamps) from the battery to preserve data blocks, timers, and flags, while external backup voltages between 5 VDC and 15 VDC can be supplied to prevent work memory corruption.\u003c\/p\u003e\n\u003cp\u003eQ: Can this hardware revision be inserted into an active, running S7-400H backplane rack assembly?\u003c\/p\u003e\n\u003cp\u003eA: While the communication interfaces and secondary expansion modules support online hot-swap operations, inserting a primary central processing unit into an unpowered chassis slot requires the sub-rack to be isolated. The partner CPU will continue executing process logic while the new node initializes and completes memory image synchronization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the processor vertically into the designated chassis slots, ensuring the rear backplane connectors align perfectly before engaging the mechanical locking screws.\u003c\/li\u003e\n\u003cli\u003eConfigure the MPI\/DP and DP physical address mappings inside the STEP 7 hardware utility before downloading system parameters to avoid network collisions.\u003c\/li\u003e\n\u003cli\u003eInstall high-grade fiber-optic synchronization modules into the dedicated dual slots, verifying that the minimum bend radius of the fiber patch cables is maintained.\u003c\/li\u003e\n\u003cli\u003eGround the unshielded segments of all incoming PROFIBUS and MPI communication cables directly to the enclosure shielding bus using standard grounding clamps.\u003c\/li\u003e\n\u003cli\u003eVerify the functional status of the backup batteries on the power supply module before putting the CPU into RUN mode to ensure retentive variables are preserved during power failures.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":43438444118106,"sku":"6ES7414-4HM14-0AB0","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/184._c299bed7-a2a3-418f-8f96-4d9c2da6c8b7.jpg?v=1780275786","url":"https:\/\/www.spareoil.com\/products\/6es7414-4hm14-0ab0-siemens-s7-400h-cpu-414h-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}