{"product_id":"allen-bradley-1756-rm-redundancy-module","title":"Allen-Bradley 1756-RM ControlLogix Enhanced Redundancy Module","description":"\u003cp\u003eThe Allen-Bradley 1756-RM is a high-performance Enhanced Redundancy Module designed for the ControlLogix Programmable Automation Controller (PAC) platform. This module enables seamless controller redundancy, ensuring high availability and system reliability in critical industrial processes. It facilitates the synchronization of two identical controllers installed in separate, identical chassis configurations.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSingle-slot chassis mounting for flexible installation.\u003c\/li\u003e\n\u003cli\u003e100 Mbps fiber-optic synchronization via LC-type connector.\u003c\/li\u003e\n\u003cli\u003eIntegrated LED status indicators (PRI, COM, OK) for real-time system health and redundancy monitoring.\u003c\/li\u003e\n\u003cli\u003eCompatible with 8.5\/125 µm single-mode fiber-optic cabling.\u003c\/li\u003e\n\u003cli\u003eSupports synchronization distances up to 10 km.\u003c\/li\u003e\n\u003cli\u003eLow power dissipation (9W) with efficient thermal management.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOil, Gas, and Petrochemical Refining: Ensures continuous monitoring of critical pressures and flow rates.\u003c\/li\u003e\n\u003cli\u003eWater and Wastewater Management: Maintains non-stop operation for chemical purification and distribution systems.\u003c\/li\u003e\n\u003cli\u003ePower Generation: Provides grid synchronization and governor control stability during local system events.\u003c\/li\u003e\n\u003cli\u003eChemical Manufacturing: Prevents process disruptions that could lead to thermal runaway or material spoilage.\u003c\/li\u003e\n\u003cli\u003eMetals and Mining: Protects infrastructure by preventing solidification of materials during unexpected controller downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-RM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eLC-type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003e8.5\/125 µm single-mode fiber-optic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Cable Length\u003c\/td\u003e\n\u003ctd\u003e10 km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e100 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1310 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e4 mA @ 1.2V DC, 1.2 A @ 5.1V DC, 120 mA @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the controller is powered down before inserting or removing the module from the chassis.\u003c\/li\u003e\n\u003cli\u003eAlign the module circuit board with the top and bottom chassis card guides and slide firmly until it seats into the backplane connector.\u003c\/li\u003e\n\u003cli\u003eUse only compatible 1756-RMCx series fiber-optic cables for synchronization.\u003c\/li\u003e\n\u003cli\u003eDo not mix legacy 1756-RM series modules with newer 1756-RM2 or 1756-RM3 modules within the same redundant chassis pair.\u003c\/li\u003e\n\u003cli\u003eHandle the module using standard ESD (Electrostatic Discharge) precautions to prevent damage to sensitive internal components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eCan the 1756-RM module be replaced with newer models?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-RM has been succeeded by the 1756-RM2 and 1756-RM3 modules. Migration requires firmware updates via the Redundancy Module Configuration Tool (RMCT). Note that you cannot mix different series modules within the same synchronized system.\u003c\/p\u003e\u003ch3\u003eWhat software is required for configuration?\u003c\/h3\u003e\u003cp\u003eBasic parameters are configured via Studio 5000 Logix Designer, while advanced redundancy settings are managed using the Redundancy Module Configuration Tool (RMCT), accessible through RSLinx.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51009134625020,"sku":"1756-RM","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_7fe8ed4c-8ec8-439c-bbbb-2e9146749e56.jpg?v=1787597973","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1756-rm-redundancy-module","provider":"Electronic PLC","version":"1.0","type":"link"}