{"product_id":"1785-mr-allen-bradley-4k-ram-memory-module-for-plc-5-15","title":"1785-MR | Allen-Bradley 4K RAM Memory Module for PLC-5\/15","description":"\u003ch3\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1785-MR\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a 4K RAM memory module engineered for use with PLC-5\/15 processors. Designed to provide non-volatile memory storage when paired with an EPROM module, it enables reliable data handling and temporary program storage within control systems. The 1785-MR supports critical control operations that require quick read\/write access and stable data retention during runtime.\u003c\/p\u003e\n\u003cp\u003eAlthough now discontinued by the manufacturer, the 1785-MR remains widely used for maintaining and servicing legacy Allen-Bradley PLC-5 systems in industrial environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAllen-Bradley\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1785-MR\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRAM Memory Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMemory Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4K words\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Controller:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePLC-5\/15 Processor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMemory Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVolatile RAM (used with EPROM for permanent storage)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePLCs \/ Machine Control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSubcategory:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePLC Module \/ Rack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.03 lbs (0.014 kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStatus:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDiscontinued by manufacturer (available as replacement or service part)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFactory Warranty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNot applicable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement Warranty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2-year limited coverage (third-party or distributor dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 1785-MR is suitable for industrial control systems that require reliable temporary data storage during PLC operations. It is commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eLegacy PLC-5 automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess control and manufacturing environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipment upgrades and maintenance of older control architectures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMemory expansion for existing PLC-5\/15 controllers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eComparison with Similar Models\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1785-MR:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4K RAM module for PLC-5\/15 processors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1785-MJ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8K EEPROM module for program retention\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1785-ME16:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16K EPROM module for expanded permanent memory\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Is the 1785-MR still supported by Allen-Bradley?\u003c\/strong\u003e\u003cbr\u003eA1: The model is discontinued, but it remains compatible with legacy PLC-5\/15 systems and can be sourced as a service replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Does this module retain data when power is off?\u003c\/strong\u003e\u003cbr\u003eA2: No. As a RAM-based device, data is lost when power is removed unless backed up by an EPROM module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can the 1785-MR be used with other PLC-5 processors?\u003c\/strong\u003e\u003cbr\u003eA3: It is primarily intended for the PLC-5\/15 but may function with select compatible units within the same architecture.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSEO Title (55–60 characters)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAllen-Bradley 1785-MR 4K RAM Memory Module for PLC-5\/15\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":52829553131704,"sku":"1785-MR","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1785-MR.jpg?v=1770802157","url":"https:\/\/www.globalpetroparts.com\/products\/1785-mr-allen-bradley-4k-ram-memory-module-for-plc-5-15","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}