{"product_id":"3bdz000398r1-abb-profibus-redundancy-link-module-rlm01","title":"3BDZ000398R1 ABB PROFIBUS Redundancy Link Module RLM01","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eRLM01 with order number 3BDZ000398R1 is an ABB PROFIBUS redundancy link module for Advant OCS \/ 800xA control systems. It is used to maintain communications availability in PROFIBUS RS-485 networks by supervising multiple bus paths and switching the active channel when a fault condition is detected. The module also performs signal regeneration, helping preserve waveform integrity and communication margin on extended or electrically noisy segments.\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous service in industrial cabinets, this redundancy link module supports diagnostic visibility via front indicators and alarm signaling, enabling faster troubleshooting in critical control networks.\u003c\/p\u003e\n\u003ch3\u003eNetwork \u0026amp; Hardware Characteristics\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eRLM01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Number\u003c\/td\u003e\n\u003ctd\u003e3BDZ000398R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS Redundancy Link Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Range\u003c\/td\u003e\n\u003ctd\u003eAdvant OCS \/ 800xA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Layer\u003c\/td\u003e\n\u003ctd\u003eRS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rates\u003c\/td\u003e\n\u003ctd\u003e9.6 kbit\/s to 12 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003e3 × RS-485 ports (typical use A \/ B \/ M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eRedundant line supervision, automatic path changeover, signal regeneration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eFront-panel LED status indication, alarm output (dry contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply\u003c\/td\u003e\n\u003ctd\u003e24 VDC (single or redundant feed supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eIn Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.5 × 9.5 × 13.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHS Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAdditional engineering notes\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic channel selection based on telegram validity to reduce communication interruptions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRepeater behavior improves signal amplitude\/shape to stabilize bus performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlarm contact can be wired to DCS diagnostics, annunciators, or maintenance monitoring systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePROFIBUS networks requiring redundant cabling paths for high-availability control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess industries where communication loss can cause trips, production loss, or safety risk\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMarine\/offshore and heavy industrial installations using ruggedized fieldbus infrastructure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRevamps and lifecycle support for Advant OCS \/ 800xA systems with PROFIBUS field devices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45518991425709,"sku":"3BDZ000398R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-rlm01-3bdz000398r1-profibus-redundancy-link-module-4rk4irwfn5x.jpg?v=1766984236","url":"https:\/\/www.maxwellplc.com\/products\/3bdz000398r1-abb-profibus-redundancy-link-module-rlm01","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}