{"product_id":"fanuc-from-sram-module-for-0i-b-0i-mate-b-16i-18i-21i-a20b-3900-0181","title":"Fanuc FROM\/SRAM module for 0i-B\/ 0i Mate-B\/ 16i\/ 18i\/ 21i A20B-3900-0181","description":"\u003ch3 data-start=\"0\" data-end=\"72\"\u003e📌 \u003cstrong data-start=\"7\" data-end=\"72\"\u003eFANUC A20B‑3900‑0181 — 16 MB FROM \/ 512 KB SRAM Memory Module\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"74\" data-end=\"451\"\u003e\u003cstrong data-start=\"74\" data-end=\"90\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"90\" data-end=\"93\"\u003eThe \u003cstrong data-start=\"97\" data-end=\"121\"\u003eFANUC A20B‑3900‑0181\u003c\/strong\u003e is a \u003cstrong data-start=\"127\" data-end=\"153\"\u003ecombined memory module\u003c\/strong\u003e used in FANUC CNC controllers — especially in \u003cstrong data-start=\"200\" data-end=\"235\"\u003emid‑generation i‑Series systems\u003c\/strong\u003e such as \u003cstrong data-start=\"244\" data-end=\"272\"\u003eSeries 16i, 18i, and 21i\u003c\/strong\u003e. It contains both \u003cstrong data-start=\"291\" data-end=\"324\"\u003enon‑volatile Flash ROM (FROM)\u003c\/strong\u003e and \u003cstrong data-start=\"329\" data-end=\"346\"\u003evolatile SRAM\u003c\/strong\u003e that together store the CNC’s operating software and working data. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"453\" data-end=\"472\"\u003e\u003cstrong data-start=\"453\" data-end=\"470\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"473\" data-end=\"1258\"\u003e\n\u003cli data-start=\"473\" data-end=\"645\"\u003e\n\u003cp data-start=\"475\" data-end=\"645\"\u003e💾 \u003cstrong data-start=\"478\" data-end=\"499\"\u003eFlash ROM (FROM):\u003c\/strong\u003e \u003cstrong data-start=\"500\" data-end=\"529\"\u003e16 MB non‑volatile memory\u003c\/strong\u003e — holds the \u003cstrong data-start=\"542\" data-end=\"604\"\u003econtroller’s firmware, system code, and essential programs\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"646\" data-end=\"814\"\u003e\n\u003cp data-start=\"648\" data-end=\"814\"\u003e🧠 \u003cstrong data-start=\"651\" data-end=\"660\"\u003eSRAM:\u003c\/strong\u003e \u003cstrong data-start=\"661\" data-end=\"682\"\u003e512 KB static RAM\u003c\/strong\u003e — used as \u003cstrong data-start=\"693\" data-end=\"711\"\u003eworking memory\u003c\/strong\u003e for runtime variables, machine parameters, and data buffering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"815\" data-end=\"1048\"\u003e\n\u003cp data-start=\"817\" data-end=\"1048\"\u003e⚙️ \u003cstrong data-start=\"820\" data-end=\"833\"\u003eFunction:\u003c\/strong\u003e Provides the \u003cstrong data-start=\"847\" data-end=\"870\"\u003ecore memory storage\u003c\/strong\u003e for the CNC’s control software and dynamic system data, enabling the controller to \u003cstrong data-start=\"954\" data-end=\"1007\"\u003eboot, run programs, and manage machine operations\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1049\" data-end=\"1258\"\u003e\n\u003cp data-start=\"1051\" data-end=\"1258\"\u003e🔌 \u003cstrong data-start=\"1054\" data-end=\"1070\"\u003eApplication:\u003c\/strong\u003e Typically found in FANUC \u003cstrong data-start=\"1096\" data-end=\"1134\"\u003eSeries 16i\/18i\/21i modular systems\u003c\/strong\u003e, where memory modules are separate boards that plug into the main control assembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1260\" data-end=\"1278\"\u003e\u003cstrong data-start=\"1260\" data-end=\"1276\"\u003eUsage Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1279\" data-end=\"1680\"\u003e\n\u003cli data-start=\"1279\" data-end=\"1514\"\u003e\n\u003cp data-start=\"1281\" data-end=\"1514\"\u003e📂 After replacing this module, \u003cstrong data-start=\"1313\" data-end=\"1382\"\u003eALL FROM files, machine parameters, and programs must be reloaded\u003c\/strong\u003e from backups — because SRAM content is volatile and the FROM needs appropriate system code. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1515\" data-end=\"1680\"\u003e\n\u003cp data-start=\"1517\" data-end=\"1680\"\u003e🔄 This part is often stocked \u003cstrong data-start=\"1547\" data-end=\"1576\"\u003enew, refurbished, or used\u003c\/strong\u003e by suppliers, with varying warranty and repair\/return policies. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1682\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1682\" data-end=\"1707\"\u003eTypical Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1710\" data-end=\"1975\"\u003e\n\u003cli data-start=\"1710\" data-end=\"1839\"\u003e\n\u003cp data-start=\"1712\" data-end=\"1839\"\u003eServing as the \u003cstrong data-start=\"1727\" data-end=\"1751\"\u003eprimary memory board\u003c\/strong\u003e in conventional FANUC i‑Series CNC controllers. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1840\" data-end=\"1975\"\u003e\n\u003cp data-start=\"1842\" data-end=\"1975\"\u003eUsed where moderate memory capacity is sufficient for typical control programs and system code.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JJAutomation","offers":[{"title":"New","offer_id":44705500266632,"sku":"A20B-3900-0181","price":0.0,"currency_code":"INR","in_stock":true},{"title":"Used \/ Refurbished","offer_id":46109836705928,"sku":"A20B-3900-0181","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/WhatsAppImage2025-10-18at1.47.49PM-2026-01-21T161802.069.jpg?v=1768992489","url":"https:\/\/jjautomation.in\/products\/fanuc-from-sram-module-for-0i-b-0i-mate-b-16i-18i-21i-a20b-3900-0181","provider":"JJAutomation","version":"1.0","type":"link"}