{"product_id":"6es5-374-2fm21-siemens-simatic-s5-plc-memory-card","title":"Siemens 6ES5374-2FM21 Simatic S5 Memory Card","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Siemens 6ES5374-2FM21 is a specialized memory module engineered for the Simatic S5 PLC product line. This non-volatile storage card serves as a reliable medium for storing user programs, configuration parameters, and logic sequences. Designed for demanding industrial environments, the module utilizes robust EPROM\/EEPROM technology to ensure that critical controller data remains intact during power cycles or system outages. Its solid-state design eliminates the need for battery backup, providing a stable, maintenance-free solution for long-term program retention in legacy automation systems.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Volatile Storage:\u003c\/strong\u003e Maintains data integrity without the requirement for internal batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Design:\u003c\/strong\u003e Engineered to withstand the rigors of heavy industrial environments, including thermal cycling and vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Interface:\u003c\/strong\u003e Designed for seamless integration into the Simatic S5 CPU memory slot via high-reliability edge connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrite Protection:\u003c\/strong\u003e Includes integrated circuitry to prevent accidental data corruption or unauthorized program overwrites.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Optimized for long-term performance in continuous-operation applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis memory module is widely utilized in legacy automation infrastructure, including chemical processing facilities, power generation plants, and large-scale manufacturing lines where Simatic S5 controllers remain in active service. It is essential for rapid recovery of control logic following system power resets.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e6ES5374-2FM21\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSimatic S5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Technology\u003c\/td\u003e\n\u003ctd\u003eFlash EPROM \/ EEPROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC (via CPU slot)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e10 years minimum at 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Status:\u003c\/strong\u003e Always ensure the CPU power is disconnected or the system is in a safe state before inserting or removing the memory card.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e Observe standard ESD (Electrostatic Discharge) precautions when handling the module to prevent damage to internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeating:\u003c\/strong\u003e Ensure the card is firmly seated in the dedicated CPU slot to maintain consistent contact across the gold-plated pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Verify that the control cabinet environment is within the specified temperature and humidity ranges to ensure optimal longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleaning:\u003c\/strong\u003e Keep the edge connector area free of dust and debris to minimize contact resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eDoes this module require a battery?\u003c\/h3\u003e\u003cp\u003eNo, the 6ES5374-2FM21 uses non-volatile memory technology, which does not rely on batteries to retain data.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with all S5 CPUs?\u003c\/h3\u003e\u003cp\u003eThis card is designed for specific Simatic S5 series controllers. Please consult your CPU hardware manual to verify compatibility with the 6ES5374-2FM21 order code before installation.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44035166077018,"sku":"6ES5374-2FM21","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_da848118-f5e0-42d2-bb7d-4771f33201b6.jpg?v=1788928920","url":"https:\/\/www.spareoil.com\/es\/products\/6es5-374-2fm21-siemens-simatic-s5-plc-memory-card","provider":"SpareOil Automation","version":"1.0","type":"link"}