{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RPBA-01","brand":"ABB","brandSlug":"abb","productSlug":"RPBA-01","canonicalUrl":"https://aoctrl.com/abb/RPBA-01","factsUrl":"https://aoctrl.com/api/mcp/products/RPBA-01","rawCanonicalId":null},"summary":{"shortDescription":"ABB RPBA-01 Profibus-DP communication adapter for ACS550 and ACS800 series variable frequency drives, RS-485 twisted-pair fieldbus interface.","salesMarkdown":"## What the card actually is The ABB RPBA-01 is a Profibus-DP communication adapter that drops into the option slot of an ACS550 or ACS800 drive to put the drive on a Profibus-DP segment as a slave station. Profibus on this adapter runs over an RS-485 twisted-pair cable, the standard physical layer for the bus, so the panel-side wiring and termination rules are the usual Profibus-DP segment practice — not Ethernet, not fiber. The card is sold under the ABB Drives option family for the ACS550 and ACS800 inverter lines, which is the cohort that still calls for the RPBA-01 form factor on legacy retrofit and spares work. ## Bus mechanics a buyer needs to know up front The bus segment carries up to 31 stations without repeaters, and the trunk length scales from 100 to 1200 meters as the transmission rate steps down — the higher the baud, the shorter the cable the adapter will reach across. Because the physical layer is RS-485, termination, shield grounding at the panel end, and repeater placement follow the Profibus-DP installation guide rather than any ABB-specific rule; the adapter itself does not change those conventions. ## Where it lands in the drive family Compatibility is stated for the ACS550 and ACS800 series drives, which covers the bulk of ABB general-purpose and industrial drives in the field that accept a plug-in fieldbus option of this generation. ## Sourcing posture","metaTitle":"ABB RPBA-01 Profibus-DP Adapter, ACS550/ACS800","metaDescription":"ABB RPBA-01 Profibus-DP communication adapter for ACS550 and ACS800 series drives. RS-485 twisted pair, up to 31 stations per segment, sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Inverter / VFD"],"specifications":{"Type":"Communication Adaptor","lifecycle_stage":"unknown"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$200.00 – $469.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f19b9ed81e89ecf16c28d5249a4041f9.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/RPBA-01/alternatives.json"},"ai":{"faq":[{"question":"What drives does the RPBA-01 fit?","answer":"The RPBA-01 is specified for the ABB ACS550 and ACS800 series variable frequency drives, plugging into the drive's communication option slot."},{"question":"Can the RPBA-01 be swapped for a RETA-02-KIT without rewiring?","answer":"No — the RPBA-01 is a Profibus-DP adapter on RS-485, while the RETA-02-KIT is an EtherNet/IP adapter. They are same-family option cards on different fieldbuses, so the controller-side mapping, cabling, and PLC configuration all change with the swap."},{"question":"What physical layer and segment limits apply to the RPBA-01?","answer":"Profibus-DP on RS-485 twisted pair, supporting up to 31 stations per segment without repeaters and trunk lengths from 100 to 1200 meters depending on the baud rate selected."},{"question":"How do I source the RPBA-01?","answer":"Submit an RFQ against order code RPBA-01; quotes are returned with current availability and lead time for the ABB ACS550/ACS800 option slot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/RPBA-01","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/RPBA-01 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}