{"product_id":"allen-bradley-1756-m2-controllogix-1-mb-expansion-memory-module","title":"Allen-Bradley 1756-M2 ControlLogix 1 MB Expansion Memory Module","description":"\u003cp\u003eThe \u003cstrong\u003e1756-M2\u003c\/strong\u003e is a ControlLogix expansion memory module manufactured by Allen-Bradley \/ Rockwell Automation. It provides 1 Mbyte word (2 MB) of non-volatile memory expansion for first-generation ControlLogix processors. By installing directly into the controller's memory expansion slot, the module expands the memory capacity available for user application logic, tag data storage, and routine execution.\u003c\/p\u003e\n\u003ch3\u003eController Compatibility and Functional Role\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for early-generation ControlLogix processors, the \u003cstrong\u003e1756-M2\u003c\/strong\u003e attaches directly to the host controller circuit board. It enhances overall memory headroom without requiring external rack slots or additional communication backplane overhead.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\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-M2\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 Expansion Memory Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e1 Mbyte Words (2 MB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Controllers\u003c\/td\u003e\n\u003ctd\u003e1756-L1, 1756-L1M1, 1756-L1M2, 1756-L1M3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.75 lbs (0.34 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by Manufacturer\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: Which controllers are compatible with the 1756-M2 expansion memory module? A: The 1756-M2 is compatible with Allen-Bradley ControlLogix first-generation processors, specifically models 1756-L1, 1756-L1M1, 1756-L1M2, and 1756-L1M3.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1756-M2 memory module occupy an extra slot in the 1756 chassis? A: No, the 1756-M2 installs directly onboard the compatible ControlLogix processor module, so it does not consume additional backplane slots in the 1756 chassis.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSEO Field\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEO Title\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley 1756-M2 ControlLogix 1 MB Expansion Memory Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeta Description\u003c\/td\u003e\n\u003ctd\u003eBuy Allen-Bradley 1756-M2 1 Mbyte word expansion memory module for 1756-L1 series ControlLogix controllers.\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\u003eTags\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley ControlLogix, PLC Memory Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e编辑备注\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e资料来源\u003c\/strong\u003e：提供了完整的品牌（Allen-Bradley）、型号（1756-M2）、容量（1 Mbyte Words）、兼容主控型号（1756-L1 \/ -L1M1 \/ -L1M2 \/ -L1M3）及重量参数（0.75 lbs）。\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e核实与调整\u003c\/strong\u003e：由于原厂已停产该型号，相关数据均严格依据提供的规格书信息整理，未虚构任何系列或未提及的具体环境参数。Allen-Bradley 1756-M2 ControlLogix 1 MB Expansion Memory Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-M2\u003c\/strong\u003e is a ControlLogix expansion memory module manufactured by Allen-Bradley \/ Rockwell Automation. It provides 1 Mbyte word (2 MB) of non-volatile memory expansion for first-generation ControlLogix processors. By installing directly into the controller's memory expansion slot, the module expands the memory capacity available for user application logic, tag data storage, and routine execution.\u003c\/p\u003e\n\u003ch3\u003eController Compatibility and Functional Role\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for early-generation ControlLogix processors, the \u003cstrong\u003e1756-M2\u003c\/strong\u003e attaches directly to the host controller circuit board. It enhances overall memory headroom without requiring external rack slots or additional communication backplane overhead.\u003c\/p\u003e\n\u003cp\u003eThe module supports execution and data retention for the following Allen-Bradley ControlLogix processor models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1756-L1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1756-L1M1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1756-L1M2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1756-L1M3\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\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-M2\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 Expansion Memory Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e1 Mbyte Words (2 MB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Controllers\u003c\/td\u003e\n\u003ctd\u003e1756-L1, 1756-L1M1, 1756-L1M2, 1756-L1M3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.75 lbs (0.34 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by Manufacturer\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: Which controllers are compatible with the 1756-M2 expansion memory module? A: The 1756-M2 is compatible with Allen-Bradley ControlLogix first-generation processors, specifically models 1756-L1, 1756-L1M1, 1756-L1M2, and 1756-L1M3.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1756-M2 memory module occupy an extra slot in the 1756 chassis? A: No, the 1756-M2 installs directly onboard the compatible ControlLogix processor module, so it does not consume additional backplane slots in the 1756 chassis.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53136358113560,"sku":"1756-M2","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1756-M22_Cocoai.jpg?v=1793758205","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1756-m2-controllogix-1-mb-expansion-memory-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}