{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7972-0AA01-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7972-0AA01-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7972-0AA01-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7972-0AA01-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC DP, RS485 repeater, 6ES7972-0AA01-0XA0, for PROFIBUS/MPI bus systems, max. 12 Mbit/s, 31 nodes, IP20, 24 VDC.","salesMarkdown":"The Siemens 6ES7972-0AA01-0XA0 is a SIMATIC DP RS485 repeater designed to extend and regenerate PROFIBUS and MPI bus segments. It supports up to 31 nodes per segment and handles transmission rates from 9.6 kbit/s to 12 Mbit/s, auto-sensing the baud rate so you don't need DIP switches for speed selection. Power is drawn from a 24 VDC supply (20.4 to 28.8 V permissible range). The repeater consumes 200 mA without load on the PG/OP socket; with a programming device or operator panel connected, budget for up to 230 mA at the 5 V pin or 300 mA at the 24 V pin. The 12 Mbit/s ceiling covers the full PROFIBUS speed range — from the 9.6 kbit/s used on long cable runs up to the 12 Mbit/s typical for drive islands and high-speed I/O. The repeater regenerates the signal and provides electrical isolation between segments, which is critical when you're crossing panel boundaries or running cable past variable-frequency drives. IP20 means it's intended for a clean, dry enclosure — no washdown, no dust. Mount it inside a cabinet with at least IP54 protection for the overall panel. The 45 mm width (roughly 2.5 standard DIN spaces) fits alongside a typical S7-300 power supply or CPU without crowding. The -40 to 70 °C operating range covers unheated warehouses and outdoor cabinets in temperate climates, but the 95 % humidity limit at 25 °C means condensation is the real enemy — keep the cabinet above the dew point or add a cabinet heater if the repeater sits in a cold, humid environment. ## Connection and wiring Supply voltage connects via a terminal module; the PROFIBUS cables land on two terminal blocks — one for the incoming segment, one for the outgoing. No backplane bus is involved; the repeater is a standalone device that sits between two bus segments.","metaTitle":"Siemens 6ES7972-0AA01-0XA0 SIMATIC DP RS485 Repeater, 12 Mbi","metaDescription":"Siemens SIMATIC DP RS485 repeater for PROFIBUS/MPI bus systems. Max. 12 Mbit/s, 31 nodes, 24 VDC, IP20. Mature lifecycle, sourced to order. Cite: 6ES7972-0AA01-0XA0.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Accessories"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"67 mm","Width":"45 mm","title":"6ES7972-0AA01-0XA0","Height":"128 mm","description":"SIMATIC DP, RS485 REPEATER FOR THE CONNECTION OF PROFIBUS/MPI BUS SYSTEMS WITH MAX. 31 NODES; MAX. 12 MBIT/S, DEGREE OF PRO- TECTION IP20","Operation, max.":"95 %; at 25 °C","Weight, approx.":"350 g","lifecycle_stage":"mature","Rated value (DC)":"24 V","IP degree of protection":"IP20","Transmission rate, max.":"12 Mbit/s; 9.6 kbit/s to 12 Mbit/s","Current consumption, max.":"200 mA; 200 mA without loads at PG/OP socket; 230 mA load at PG/OP socket (5 V/90 mA); 300 mA load at PG/OP socket (24 V/90 mA)","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Design of electrical connection for supply voltage":"Terminal module","Design of electrical connection for PROFIBUS cables":"2 terminal blocks"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$123.79 – $326.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/222de8ebbf57af30d36a1d6f99f77cbe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=101717&mlfb=6ES7972-0AA01-0XA0"},"ai":{"faq":[{"question":"What transmission rates does it support?","answer":"It auto-detects and supports any baud rate from 9.6 kbit/s to 12 Mbit/s, covering the full PROFIBUS speed range."},{"question":"What is the supply voltage range?","answer":"Rated 24 VDC, with a permissible range of 20.4 to 28.8 VDC. Current consumption is 200 mA without a PG/OP device, up to 300 mA with a 24 V load on the programming socket."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7972-0AA01-0XA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7972-0AA01-0XA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}