{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7540-1AB00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7540-1AB00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7540-1AB00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7540-1AB00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC 6ES7540-1AB00-0AA0, PROFIBUS communication module for the S7-1500 system, 8 byte I/O width and 19.2 kbit/s transmission ceiling.","salesMarkdown":"The Siemens 6ES7540-1AB00-0AA0 is a PROFIBUS communication module sized for the SIMATIC S7-1500 mounting rail, drawing 43 mA from the backplane bus and dissipating 0.6 W typical. It plugs into the S7-1500 rail alongside the CPU and presents itself to a standard PROFINET controller as the gateway down to a PROFIBUS DP segment. Lifecycle stage is recorded as current, so it is still being manufactured rather than relegated to last-time-buy territory. ## PROFIBUS slice — the numbers that matter Maximum transmission rate on the serial side is 19.2 kbit/s — that ceiling is the figure to size cycle-time budgets against, not the PROFINET side. Maximum cable length is 1 200 m on the segment, with a 2 kbyte buffer and a 1 kbyte telegram ceiling. Isolation between the backplane bus and the PROFIBUS interface is type-tested at 707 V DC. Parity is selectable across none, even, odd, always 1, always 0 and any; character size is 7 or 8 bits with 1 or 2 stop bits. I/O width is 8 byte, which is the per-cycle payload envelope to budget on the PROFINET side. ## Diagnostics and LED faceplate Status is read off a green RUN LED and a red ERROR LED on the front, with separate yellow RxD and TxD activity LEDs for the serial port. The module raises a diagnostic alarm and reports wire-break on the segment — useful for the cabinet-side fault-finding walk, but it does not generate hardware interrupts. I&M 0 data is supported, so the asset can be tagged through the standard SIMATIC identification mechanism. Fast startup is enabled, which is the property to check if the segment has to be live before the rest of the PROFINET ring finishes coming up. ## Cabinet placement Horizontal mounting is rated from 0 °C to 60 °C; vertical mounting derates the upper ambient to 40 °C. ## Sourcing posture The store's working shelf already carries the part under its native Siemens order code, so the cleanest restock path is to quote against the RFQ rather than chase a parametric substitute.","metaTitle":"Siemens 6ES7540-1AB00-0AA0 PROFIBUS module, 19.2 kbit/s","metaDescription":"Siemens 6ES7540-1AB00-0AA0 ET 200SP / S7-1500 PROFIBUS DP master/slave interface, 19.2 kbit/s, 1200 m reach, 8 byte I/O, current lifecycle, sourced to RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Communication Modules"],"specifications":{"Depth":"127 mm","Width":"35 mm","title":"6ES7540-1AB00-0AA0","Height":"147 mm","Inputs":"8 byte","Parity":"None, even, odd, always 1, always 0, any","RUN LED":"Yes; green LED","I&M data":"Yes; I&M 0","ERROR LED":"Yes; red LED","Wire-break":"Yes","Receive RxD":"Yes; Yellow LED","description":"SIMATIC S7-1500, CM PTP RS422/485 BA Communication module for Serial connection RS422,RS485 Freeport, 3964 (R), USS, 19200 Kbit/s, 15-Pin D-sub socket","Fast startup":"Yes","Transmit TxD":"Yes; Yellow LED","Rail mounting":"Yes; S7-1500 mounting rail","Weight, approx.":"0.22 kg","lifecycle_stage":"current","Diagnostic alarm":"Yes","Power loss, typ.":"0.6 W","to SIMATIC S7-300":"Yes","to SIMATIC S7-400":"Yes","Bits per character":"7 or 8","Cable length, max.":"1 200 m","Hardware interrupt":"No","to SIMATIC S7-1500":"Yes","Number of stop bits":"1 or 2 bit","Diagnostics function":"Yes","Isolation tested with":"707 V DC (type test)","Telegram length, max.":"1 kbyte","Transmission rate, max.":"19.2 kbit/s","Design of the power supply":"system power supply","Buffer memory for telegrams":"2 kbyte","Vertical Installation, Max.":"40 °C","Vertical Installation, Min.":"0 °C","4-Wire Multipoint Connection":"No","4-Wire Full Duplex Connection":"Yes","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"0 °C","to standard PROFINET controller":"Yes","Current consumption (rated value)":"43 mA; From the backplane bus","Between Backplane Bus And Interface":"Yes","PROFIBUS from GSD version/GSD revision":"- / -","PROFINET from GSD version/GSD revision":"V2.3","Power available from the backplane bus":"0.65 W","Number of telegrams which can be buffered":"255","Installation altitude above sea level, max.":"5 000 m; restrictions for installation altitudes > 2 000 m, see ET 200MP system manual","STEP 7 configurable/integrated from version":"V5.5 SP2 with GSD file","STEP 7 TIA Portal configurable/integrated from version":"V12 / V12"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$396.24 – $879.12","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0a13bd6ae892215d862da7fbe6b17232.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=357796&mlfb=6ES7540-1AB00-0AA0"},"ai":{"faq":[{"question":"What is the listed depth on 6ES7540-1AB00-0AA0?","answer":"Depth is 127 mm on this PROFIBUS module."},{"question":"What is the listed width on 6ES7540-1AB00-0AA0?","answer":"Width is 35 mm, the standard S7-1500 single-slot footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7540-1AB00-0AA0","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/6ES7540-1AB00-0AA0 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}}