{"product_id":"ab-allen-bradley-1756-rm2k-controllogix-redundancy-module","title":"AB Allen Bradley 1756-RM2K ControlLogix Redundancy Module","description":"\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-RM2K\u003c\/strong\u003e is a \u003cstrong\u003eControlLogix Redundancy Module\u003c\/strong\u003e by Rockwell Automation, designed for high-availability control systems. It enables \u003cstrong\u003ebumpless switchover\u003c\/strong\u003e between primary and secondary ControlLogix chassis pairs, ensuring continuous process control with zero data loss during controller failure or maintenance events. The \u003cstrong\u003e-K suffix\u003c\/strong\u003e denotes a kit configuration including the redundancy module and associated fiber-optic communication cables.\u003c\/p\u003e\n\n\u003ch3\u003eCore Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 1756-RM2K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e ControlLogix Redundancy Module Kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Synchronized redundancy communication between paired ControlLogix chassis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e Fiber-optic link via included cables\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitchover Time:\u003c\/strong\u003e Bumpless (sub-scan, typically \u0026lt;10 ms)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e ControlLogix 5580, 5570, and selected 5560 controllers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Allen-Bradley by Rockwell Automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical \u0026amp; Functional Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBackplane Current Draw:\u003c\/strong\u003e 1.2 A at 5.1 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 6.1 W typical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 5.1 VDC (supplied from ControlLogix backplane)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e Module status, synchronization status, and fiber link health LEDs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Synchronization:\u003c\/strong\u003e Continuous cross-loading of controller data, I\/O state, and program logic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Integration \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Platform:\u003c\/strong\u003e ControlLogix 5580 (1756-L8x), 5570 (1756-L7x), and 5560 (1756-L6x) controllers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChassis Requirement:\u003c\/strong\u003e 1756-A4, -A7, -A10, -A13, -A17 chassis in redundant pairs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlot Position:\u003c\/strong\u003e Dedicated redundancy slot (Slot 0 or designated RM slot) in each chassis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoftware Configuration:\u003c\/strong\u003e Studio 5000 Logix Designer v24 or later with Redundancy Module Configuration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelated Parts:\u003c\/strong\u003e 1756-RM2 (module only), 1756-RMC1 (1m fiber cable), 1756-RMC10 (10m fiber cable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Operational Limits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 60°C (32°F to 140°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40°C to +85°C (-40°F to 185°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5% to 95% RH, non-condensing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 2G, 10 to 500 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock:\u003c\/strong\u003e 30G, 11 ms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cp\u003eWidely deployed in oil \u0026amp; gas, petrochemical, power generation, water\/wastewater, metals, mining, pharmaceuticals, food \u0026amp; beverage, and automotive manufacturing facilities requiring continuous process availability and zero-downtime control systems.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is the 1756-RM2K used for?\u003c\/h4\u003e\n\u003cp\u003eIt is a redundancy module kit for ControlLogix systems, enabling automatic bumpless switchover between primary and secondary controllers to eliminate single points of failure.\u003c\/p\u003e\n\n\u003ch4\u003eWhat does the -K suffix mean?\u003c\/h4\u003e\n\u003cp\u003eThe -K indicates a kit that includes the 1756-RM2 redundancy module plus fiber-optic communication cables. The standard 1756-RM2 is the module only.\u003c\/p\u003e\n\n\u003ch4\u003eWhich controllers are compatible?\u003c\/h4\u003e\n\u003cp\u003eControlLogix 5580 (1756-L8x), 5570 (1756-L7x), and selected 5560 (1756-L6x) controllers with firmware supporting redundancy.\u003c\/p\u003e\n\n\u003ch4\u003eWhat are the related part numbers?\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1756-RM2 — Redundancy Module (module only)\u003c\/li\u003e\n  \u003cli\u003e1756-RM2K — Redundancy Module Kit with cables (this part)\u003c\/li\u003e\n  \u003cli\u003e1756-RMC1 — 1 meter fiber-optic cable\u003c\/li\u003e\n  \u003cli\u003e1756-RMC10 — 10 meter fiber-optic cable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53679382560952,"sku":"1756-RM2K","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-RM2K_2.png?v=1782895363","url":"https:\/\/www.globalpetroparts.com\/products\/ab-allen-bradley-1756-rm2k-controllogix-redundancy-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}