{"product_id":"plc-siemens-6es7953-8lf20-0aa0-6es7-953-8lf20-0aa0-simatic-s7-micro-memory-card","title":"PLC | Siemens | 6ES7953-8LF20-0AA0 6ES7 953-8LF20-0AA0 SIMATIC S7 Micro Memory Card","description":"\u003ch2\u003eProduct Description: Siemens 6ES7953-8LF20-0AA0\u003c\/h2\u003e\r\n\u003cp\u003eThe Siemens 6ES7953-8LF20-0AA0 is a Micro Memory Card (MMC) designed for use with SIMATIC S7-300 CPUs. With a storage capacity of 2 MB, it serves as the essential load memory for program and data storage in compatible S7-300 CPU modules. This MMC is required for CPU startup and operation, as the CPU loads and executes the user program directly from the card. It offers non-volatile storage, meaning that data is retained even when power is removed. The MMC also supports firmware updates and diagnostic functions in S7-300 systems.\u003c\/p\u003e\r\n\u003ch2\u003eKey Features\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003e2 MB Capacity\u003c\/strong\u003e: Suitable for medium-sized control programs and data blocks.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eNon-Volatile Memory\u003c\/strong\u003e: Retains all data and programs without the need for a battery.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eEssential for CPU Operation\u003c\/strong\u003e: Required for S7-300 CPU startup and program execution.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFirmware Upgrade Support\u003c\/strong\u003e: Can be used to update CPU firmware versions.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCompact and Robust\u003c\/strong\u003e: Industry-grade card built for long-term use in automation environments.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Easily inserted into the MMC slot of supported CPU modules.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Micro Memory Card (MMC)\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 6ES7953-8LF20-0AA0\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: SIMATIC S7-300\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eStorage Capacity\u003c\/strong\u003e: 2 MB\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eForm Factor\u003c\/strong\u003e: MMC (proprietary Siemens format)\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eVoltage Supply\u003c\/strong\u003e: Powered via CPU slot\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e: S7-300 CPUs with MMC slot\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eData Retention\u003c\/strong\u003e: Non-volatile\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFunctions Supported\u003c\/strong\u003e: Program storage, firmware update, diagnostics\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to +60°C\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: Approx. 10 g\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch2\u003eApplication Areas\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eProgram Storage\u003c\/strong\u003e: Holds the complete user program for S7-300 automation tasks.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCPU Initialization\u003c\/strong\u003e: Required for startup and operation of S7-300 CPUs.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eData Logging\u003c\/strong\u003e: Stores process values, setpoints, and configuration parameters.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eSystem Backup\u003c\/strong\u003e: Used to transfer and archive automation projects.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFirmware Maintenance\u003c\/strong\u003e: Supports CPU firmware upgrades for system updates.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch2\u003eAdvantages\u003c\/h2\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eReliable Program Storage\u003c\/strong\u003e: Ensures secure and permanent retention of critical control logic.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Operate\u003c\/strong\u003e: Simplifies replacement and commissioning of automation hardware.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eLong Service Life\u003c\/strong\u003e: Industrial-grade design withstands repeated write cycles.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Siemens Engineering Tools\u003c\/strong\u003e: Easily integrated with STEP 7 and TIA Portal.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eEssential for Operation\u003c\/strong\u003e: Required memory component for S7-300 CPU functionality.\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Rabwellplc","offers":[{"title":"Default Title","offer_id":47070885478624,"sku":"07*6ES7953-8LF20-0AA0","price":63.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/1947\/9776\/files\/10_cd803b3d-7745-4c1e-9121-9aae5147fab1.jpg?v=1740649939","url":"https:\/\/rabwellplc.com\/products\/plc-siemens-6es7953-8lf20-0aa0-6es7-953-8lf20-0aa0-simatic-s7-micro-memory-card","provider":"Rabwellplc","version":"1.0","type":"link"}