{"product_id":"fanuc-from-sram-module-for-16i-18i-21i-a20b-3900-0160","title":"Fanuc FROM\/SRAM module for 16i\/ 18i\/ 21i A20B-3900-0160","description":"\u003cp data-start=\"0\" data-end=\"68\"\u003e\u003cstrong data-start=\"0\" data-end=\"68\"\u003eFANUC A20B‑3900‑0160 — Memory\/Storage Module for CNC Controllers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"70\" data-end=\"338\"\u003eThe \u003cstrong data-start=\"74\" data-end=\"92\"\u003eA20B‑3900‑0160\u003c\/strong\u003e is a \u003cstrong data-start=\"98\" data-end=\"129\"\u003ememory module (FROM + SRAM)\u003c\/strong\u003e used in industrial \u003cstrong data-start=\"149\" data-end=\"181\"\u003eFANUC CNC controller systems\u003c\/strong\u003e. It stores firmware, configuration data, and other essential digital information that the controller needs to operate. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"340\" data-end=\"358\"\u003e📌 Key Details\u003c\/h3\u003e\n\u003cul data-start=\"359\" data-end=\"1226\"\u003e\n\u003cli data-start=\"359\" data-end=\"396\"\u003e\n\u003cp data-start=\"361\" data-end=\"396\"\u003e\u003cstrong data-start=\"361\" data-end=\"377\"\u003ePart Number:\u003c\/strong\u003e \u003cem data-start=\"378\" data-end=\"394\"\u003eA20B‑3900‑0160\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"397\" data-end=\"448\"\u003e\n\u003cp data-start=\"399\" data-end=\"448\"\u003e\u003cstrong data-start=\"399\" data-end=\"408\"\u003eType:\u003c\/strong\u003e \u003cstrong data-start=\"409\" data-end=\"446\"\u003eMemory board\/module (FROM + SRAM)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"449\" data-end=\"695\"\u003e\n\u003cp data-start=\"451\" data-end=\"466\"\u003e\u003cstrong data-start=\"451\" data-end=\"464\"\u003eFunction:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"469\" data-end=\"695\"\u003e\n\u003cli data-start=\"469\" data-end=\"552\"\u003e\n\u003cp data-start=\"471\" data-end=\"552\"\u003eContains \u003cstrong data-start=\"480\" data-end=\"500\"\u003eFlash ROM (FROM)\u003c\/strong\u003e — typically \u003cstrong data-start=\"513\" data-end=\"522\"\u003e16 MB\u003c\/strong\u003e of firmware\/program storage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"555\" data-end=\"695\"\u003e\n\u003cp data-start=\"557\" data-end=\"695\"\u003eContains \u003cstrong data-start=\"566\" data-end=\"587\"\u003eStatic RAM (SRAM)\u003c\/strong\u003e — typically \u003cstrong data-start=\"600\" data-end=\"608\"\u003e1 MB\u003c\/strong\u003e for storing runtime data and control variables \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"696\" data-end=\"877\"\u003e\n\u003cp data-start=\"698\" data-end=\"877\"\u003e\u003cstrong data-start=\"698\" data-end=\"706\"\u003eUse:\u003c\/strong\u003e Plugs into the main controller PCB of a FANUC CNC system to hold essential software\/parameters that the CNC needs to boot and run. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"878\" data-end=\"1066\"\u003e\n\u003cp data-start=\"880\" data-end=\"1066\"\u003e\u003cstrong data-start=\"880\" data-end=\"897\"\u003eApplications:\u003c\/strong\u003e Commonly used in FANUC \u003cstrong data-start=\"921\" data-end=\"946\"\u003ei‑Series CNC controls\u003c\/strong\u003e including \u003cem data-start=\"957\" data-end=\"962\"\u003e16i\u003c\/em\u003e, \u003cem data-start=\"964\" data-end=\"969\"\u003e18i\u003c\/em\u003e, \u003cem data-start=\"971\" data-end=\"976\"\u003e21i\u003c\/em\u003e, and also later \u003cem data-start=\"993\" data-end=\"1006\"\u003e30i\/31i\/32i\u003c\/em\u003e series controllers. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1226\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1226\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1080\"\u003eStatus:\u003c\/strong\u003e Often discontinued by FANUC, but available new surplus, refurbished, or repaired via aftermarket suppliers. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1228\" data-end=\"1247\"\u003e🧠 How It Works\u003c\/h3\u003e\n\u003cp data-start=\"1248\" data-end=\"1548\"\u003eThis module acts as \u003cstrong data-start=\"1268\" data-end=\"1292\"\u003enon‑volatile storage\u003c\/strong\u003e for the CNC controller’s operational software and parameters (FROM), and \u003cstrong data-start=\"1366\" data-end=\"1384\"\u003etemporary data\u003c\/strong\u003e (SRAM) used during execution. Without it, the CNC would fail to initialize or would lose critical program and parameter data. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"1550\" data-end=\"1585\"\u003e⚙️ Typical Installation Context\u003c\/h3\u003e\n\u003cul data-start=\"1586\" data-end=\"1863\"\u003e\n\u003cli data-start=\"1586\" data-end=\"1735\"\u003e\n\u003cp data-start=\"1588\" data-end=\"1735\"\u003eInstalled as part of the controller electronics rack, usually alongside the \u003cstrong data-start=\"1664\" data-end=\"1682\"\u003emain CPU board\u003c\/strong\u003e, \u003cstrong data-start=\"1684\" data-end=\"1706\"\u003eservo\/axis modules\u003c\/strong\u003e, and other memory modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1736\" data-end=\"1863\"\u003e\n\u003cp data-start=\"1738\" data-end=\"1863\"\u003eIf replacing this module, it’s important to \u003cstrong data-start=\"1782\" data-end=\"1824\"\u003erestore machine parameters and backups\u003c\/strong\u003e to avoid loss of configuration data.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"JJAutomation","offers":[{"title":"New","offer_id":44832927252616,"sku":"A20B-3900-0160","price":0.0,"currency_code":"INR","in_stock":true},{"title":"Used \/ Refurbished","offer_id":46109847093384,"sku":"A20B-3900-0160","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-2026-02-24T140952.364.jpg?v=1771922399","url":"https:\/\/jjautomation.in\/products\/fanuc-from-sram-module-for-16i-18i-21i-a20b-3900-0160","provider":"JJAutomation","version":"1.0","type":"link"}