{"product_id":"1756-rm2-allen-bradley-controllogix-enhanced-redundancy-communication-module","title":"1756-RM2 | Allen-Bradley | ControlLogix Enhanced Redundancy Communication Module","description":"\u003ch2\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance redundancy module engineered for the Allen-Bradley ControlLogix platform. This enhanced module provides the high-speed data synchronization necessary to maintain a seamless \"hot standby\" configuration between a primary and secondary controller chassis. In the event of a hardware or software fault in the primary system, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2 (Ser A\/B)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efacilitates an automatic, bumpless switchover to the redundant controller, ensuring zero downtime for critical industrial processes.\u003c\/p\u003e\n\u003cp\u003eUtilizing fiber-optic connectivity, this module supports significantly faster synchronization speeds and higher data throughput (up to 1000 Mbps) compared to legacy redundancy hardware. It is specifically designed to work with Logix 5560 and Logix 5570 controllers, providing a robust backbone for high-availability systems in mission-critical environments such as power plants, water treatment facilities, and continuous chemical processing.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: Allen-Bradley \/ Rockwell Automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e: Enhanced Redundancy Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSupported Controllers\u003c\/strong\u003e: ControlLogix 5560 (L6x) and 5570 (L7x) series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransmission Speed\u003c\/strong\u003e: 1000 Mbps (1 Gbps)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFiber Optic Connector\u003c\/strong\u003e: LC Type (Small Form-factor)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Cable Type\u003c\/strong\u003e: 8.5\/125 micron single-mode fiber-optic cable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Link Distance\u003c\/strong\u003e: 10 kilometers (6.2 miles)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Wavelength\u003c\/strong\u003e: 1310 nm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Link Cables\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RMC1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(1m),\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RMC3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(3m),\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RMC10\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(10m)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e: 1.16 A @ 5.1V DC; 3.4 mA @ 24V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Mounting\u003c\/strong\u003e: Single slot in any 1756 ControlLogix Chassis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e: 0.31 kg (0.69 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eIndustrial Application Scenarios\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a vital component for any \"Always-On\" automation architecture. It is primarily deployed in safety-instrumented systems (SIS) and complex process control loops where a system failure could lead to significant financial loss or hazardous conditions. By linking two identical chassis, it creates a fault-tolerant environment that preserves I\/O status and program variables during a transition.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eProfessional FAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1756-RM2 be used with the newer ControlLogix 5580 (L8x) controllers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RM2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis primarily optimized for L6 and L7 series controllers. For L8 series redundancy, the functionality is often integrated into the processor's firmware via the onboard Ethernet ports, though the RM2 can still be utilized in specific legacy-bridge configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs special software required to configure the redundancy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConfiguration is handled through the Studio 5000 Logix Designer software and the Redundancy Module Tool (RMT), which allows engineers to monitor link status and initiate manual switchovers for maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53058023358648,"sku":"1756-RM2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-RM2.jpg?v=1773912369","url":"https:\/\/www.globalpetroparts.com\/products\/1756-rm2-allen-bradley-controllogix-enhanced-redundancy-communication-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}