{"product_id":"siemens-6es79538lf300aa0-memory-card-mmc-plc-module","title":"Siemens 6ES79538LF300AA0 Memory Card Mmc Plc Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIEMENS 6ES79538LF300AA0 is a SIMATIC Micro Memory Card (MMC) designed for use with Siemens S7-300 series programmable logic controllers. This compact solid-state storage module retains PLC programs, data blocks, and configuration files without requiring a battery backup, making it a reliable non-volatile storage solution for industrial automation applications. Weighing just 0.03 pounds and measuring 10.6 x 9.3 x 0.8 inches in packaging dimensions, it is a direct plug-in component handled by automation technicians and controls engineers during commissioning, program transfers, and controller replacements.\u003c\/p\u003e\n\u003cp\u003eThis memory card is used in industrial control environments where S7-300 CPUs require external program storage or data logging. Typical installation scenarios include manufacturing cells, process control panels, and building automation systems where a licensed controls technician or systems integrator is responsible for PLC programming and maintenance. The card supports program upload and download operations directly through the CPU slot without additional hardware interfaces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-volatile MMC storage retains data without battery backup\u003c\/li\u003e\n  \u003cli\u003eDirect plug-in installation into compatible S7-300 CPU card slots\u003c\/li\u003e\n  \u003cli\u003eStores PLC programs, data blocks, and configuration files\u003c\/li\u003e\n  \u003cli\u003eCompact form factor for use in space-constrained control panels\u003c\/li\u003e\n  \u003cli\u003eSolid-state design with no moving parts for long service life in industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement memory card for compatible Siemens S7-300 series PLC CPU modules that accept the standard MMC form factor.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and programming of PLC memory cards should be performed by a qualified controls technician or licensed automation engineer. Always power down the PLC and follow the controller manufacturer lockout procedures before inserting or removing the memory card. Avoid touching the card contacts and store the card in its protective case when not in use. Verify CPU compatibility and firmware version requirements before transferring program data to the card.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions (L x W x H)\u003c\/strong\u003e: 10.6 x 9.3 x 0.8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 88762144543\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6ES79538LF300AA0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":51383210213682,"sku":"6ES79538LF300AA0","price":154.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312677361.jpg?v=1782589777","url":"https:\/\/voomisupply.com\/products\/siemens-6es79538lf300aa0-memory-card-mmc-plc-module","provider":"Voomi Supply","version":"1.0","type":"link"}