{"product_id":"allen-bradley-1756-m12-controllogix-750-k-memory-module","title":"Allen-Bradley 1756-M12 ControlLogix 750 K Memory Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-M12\u003c\/strong\u003e is a 750 KB expansion memory module designed specifically for first-generation ControlLogix controllers, primarily matching the 1756-L55 (Logix5555) series. Installed directly into the controller's internal expansion slot, it expands user memory capacity for data tags, sequential routines, and complex process control programs.\u003c\/p\u003e\n\u003ch3\u003eSystem Compatibility and Memory Expansion\u003c\/h3\u003e\n\u003cp\u003eThe module provides 750 KB of non-volatile program and data storage. It integrates directly onto the host processor board, combining with the base controller to form full assemblies such as the 1756-L55M12.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-M12\u003c\/strong\u003e is compatible with the entire 1756-L55 controller family, including base models paired with other expansion options (such as 1756-L55M13, 1756-L55M14, 1756-L55M16, 1756-L55M22, 1756-L55M23, and 1756-L55M24). This modular architecture enables facilities to upgrade or replace memory components without disposing of the core controller hardware.\u003c\/p\u003e\n\u003ch3\u003eOperational Requirements and Environment\u003c\/h3\u003e\n\u003cp\u003eThe module installs inside the main controller unit housed within a standard 1756 ControlLogix chassis. It draws operating power from the backplane via the host controller, with typical 5.1 VDC backplane current requirements for the combined assembly.\u003c\/p\u003e\n\u003cp\u003eDesigned for industrial environments, the module supports standard operating ambient temperatures from 0 to 60 deg C (32 to 140 deg F) and relative humidity levels between 5% and 95% non-condensing. Its lightweight design adds approximately 0.06 kg (0.13 lbs) to the controller unit.\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\u003e1756-M12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eController Memory Expansion Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e750 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHost Controller Compatibility\u003c\/td\u003e\n\u003ctd\u003eControlLogix 1756-L55 (Logix5555)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eInternal Controller Daughtercard Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eInternal via Controller \/ Chassis Backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C (-40 to 185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95% Non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Altitude\u003c\/td\u003e\n\u003ctd\u003eUp to 1000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.06 kg (0.13 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which controller family uses the 1756-M12 expansion memory module? A: The 1756-M12 is designed specifically for Allen-Bradley ControlLogix 1756-L55 (Logix5555) controllers, forming complete assembly units like the 1756-L55M12.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1756-M12 module be installed directly into a chassis slot? A: No, the 1756-M12 is an internal memory daughtercard that plugs directly into the host 1756-L55 controller board, not into a standard 1756 backplane slot.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67156296532083,"sku":"1756-M12","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1756-M12_Cocoai.jpg?v=1794289759","url":"https:\/\/www.dcssupplier.com\/ar\/products\/allen-bradley-1756-m12-controllogix-750-k-memory-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}