{"product_id":"plc-memory-modules-allen-bradley-1745-m1","title":"PLC Memory Modules | Allen-Bradley 1745-M1","description":"\u003cp\u003eThe \u003cstrong\u003e1745-M1\u003c\/strong\u003e is a non-volatile EEPROM memory module engineered for Allen-Bradley SLC 100 and SLC 150 programmable logic controllers. Belonging to the Bulletin 1745 hardware series, this compact memory cartridge installs directly into the host controller to provide secure, non-volatile storage for user logic and configuration data up to a maximum capacity of 1,200 words.\u003c\/p\u003e\n\u003ch3\u003eNon-Volatile Program Backup and Retention\u003c\/h3\u003e\n\u003cp\u003eThe 1745-M1 protects critical operating logic against data loss caused by power outages or internal RAM battery depletion. Once a ladder logic program is saved to the EEPROM chip, the controller can retain its application program indefinitely without requiring battery back-up power, making it ideal for remote or legacy industrial installations where long-term system stability is required.\u003c\/p\u003e\n\u003ch3\u003eModule Installation and System Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned for plug-in operation, the module fits into the designated memory expansion socket on SLC 100 and SLC 150 CPU units. Programmers can transfer user code between the controller's internal RAM and the 1745-M1 EEPROM using an SLC handheld programmer or PC software, enabling simplified program duplication across multiple machines or fast restoration during maintenance.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1745-M1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePLC Memory Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eBulletin 1745\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Type\u003c\/td\u003e\n\u003ctd\u003eEEPROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e1,200 Words (Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible System\u003c\/td\u003e\n\u003ctd\u003eSLC 100 \/ SLC 150 Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.02 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary advantage of using the 1745-M1 EEPROM module over standard internal RAM in an SLC 100\/150 controller? A: The 1745-M1 provides non-volatile storage, meaning user programs (up to 1,200 words) remain safely stored even if the controller loses main power and its internal RAM battery drains completely.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1745-M1 memory module be reprogrammed? A: Yes, as an Electrically Erasable Programmable Read-Only Memory (EEPROM) cartridge, the 1745-M1 can be written to, erased, and re-written using compatible Bulletin 1745 programming tools.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67166905106547,"sku":"1745-M1","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1745-M1.png?v=1794377927","url":"https:\/\/www.dcssupplier.com\/products\/plc-memory-modules-allen-bradley-1745-m1","provider":"DcsSupplier Limited","version":"1.0","type":"link"}