{"product_id":"6fc5357-0bb14-0aa0","title":"Siemens SINUMERIK 840D\/DE NCU 571.4 6FC5357-0BB14-0AA0","description":"\u003cp\u003eThe \u003cstrong\u003eSiemens SINUMERIK 840D\/DE NCU 571.4 (6FC5357-0BB14-0AA0)\u003c\/strong\u003e is the numerical control unit of a SINUMERIK 840D \/ 840DE system — the module that runs the NC kernel, the integrated PLC and axis interpolation. It plugs into the NCU box alongside the SIMODRIVE 611D drive rack. The NCU 571.4 is the entry-level powerline NCU with a 400 MHz processor and 64 MB memory, supplied \u003cstrong\u003ewithout system software\u003c\/strong\u003e (the NC software is loaded on a separate PCMCIA card). At \u003cstrong\u003eJJ Automation\u003c\/strong\u003e it is available \u003cstrong\u003enew\u003c\/strong\u003e and as \u003cstrong\u003etested used \/ refurbished\u003c\/strong\u003e — checked before dispatch and backed by warranty.\u003c\/p\u003e\u003ch3\u003eWhen to replace\u003c\/h3\u003e\u003cp\u003eControl not booting, watchdog or NCK system alarms, corrupted SRAM data, repeated battery-backup failures, or physical damage after a power event. \u003cstrong\u003eBefore swapping:\u003c\/strong\u003e back up your machine data, PLC program and drive parameters — an NCU without this machine's own data cannot run it. Our free guides: \u003ca href=\"\/blogs\/siemens\/how-to-back-up-siemens-sinumerik-808d-828d-data-complete-guide\"\u003eSINUMERIK backup guide\u003c\/a\u003e · \u003ca href=\"\/blogs\/siemens\/siemens-840d-alarm-list\"\u003e840D alarm list\u003c\/a\u003e · \u003ca href=\"\/blogs\/siemens\/how-to-reference-a-siemens-sinumerik-cnc-808d-828d-840d-reference-point-absolute-encoder-calibration\"\u003ereferencing after a control change\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDetails\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e6FC5357-0BB14-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eNCU 571.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eSINUMERIK 840D \/ 840DE powerline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eNumerical Control Unit (NCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003e400 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e64 MB; NC user memory 0.5 MB; PLC user memory 96 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS DP prepared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem software\u003c\/td\u003e\n\u003ctd\u003eNot included (ordered separately on PCMCIA card)\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\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew \u0026amp; Used \/ Refurbished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eRelated: \u003ca href=\"\/pages\/siemens-controllers-panels\"\u003eSINUMERIK controllers \u0026amp; panels\u003c\/a\u003e · \u003ca href=\"\/pages\/siemens-pcb-boards\"\u003eSiemens PCB boards\u003c\/a\u003e · \u003ca href=\"\/pages\/siemens-drives-power\"\u003eSINAMICS \/ SIMODRIVE drives\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e✓ 100% tested ✓ Warranty ✓ Pan-India shipping\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePrice on request\u003c\/strong\u003e — 📞 +91 8826207004 ✉ sales@jjautomation.in\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":67605457076360,"sku":"6FC5357-0BB14-0AA0","price":300000.0,"currency_code":"INR","in_stock":true},{"title":"Used \/ Refurbished","offer_id":67605457109128,"sku":"6FC5357-0BB14-0AA0","price":200000.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/1c78873f-3dc1-4715-83c2-860a073f1407.jpg?v=1791029038","url":"https:\/\/jjautomation.in\/products\/6fc5357-0bb14-0aa0","provider":"JJAutomation","version":"1.0","type":"link"}