{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7155-6AU30-0CN0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7155-6AU30-0CN0","canonicalUrl":"https://aoctrl.com/siemens/6ES7155-6AU30-0CN0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7155-6AU30-0CN0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC ET 200SP PROFINET interface module, 6ES7155-6AU30-0CN0, 24 V DC, IRT 250 µs–4 ms, 3 Ethernet ports via 2 BusAdapter slots, firmware V4.2.","salesMarkdown":"The Siemens 6ES7155-6AU30-0CN0 is a SIMATIC ET 200SP PROFINET interface module — the head-end that ties an ET 200SP station (or, via a send BU/BA, an ET 200AL island of up to 16 additional modules) onto a PROFINET network. It carries three Ethernet ports through two BusAdapter slots rather than fixed RJ-45 sockets, so the physical media (copper, fiber, mixed) is a slot decision, not a chassis decision. ## Timing and redundancy — what the spec actually buys you IRT is supported across a 250 µs to 4 ms send clock, stepped in 125 µs increments — that range is what determines whether the application fits isochronous motion or stays in standard RT. Maximum jitter is held to 1 µs and equidistance plus H-Sync forwarding are both enabled, so the module is positioned for drives or high-speed I/O where the deterministic gap between cycles matters as much as the cycle itself. PROFINET MRP media redundancy is on the table; MRPD is not — if the design relies on MRPD for parallel-redundant ring reconfiguration, this head-end will not carry it. ## Diagnostics, security, and shared-device posture Status is reported through three front-panel LEDs — green RUN, red ERROR, yellow MAINT — which mirrors the standard Siemens PROFINET diagnostics vocabulary the maintenance tech will already read. Alarms, SNMP, LLDP, and TCP/IP are all on; Modbus TCP is not. Shared-device mode is supported, so two controllers can split the downstream I/O across one head-end when the architecture calls for it. Security is documented against Security Level 1 Test Cases V1.1.1, and I&M0 through I&M3 are populated for asset identification in the engineering tool. PROFIenergy is supported and the module ships at firmware V4.2 — pin that version in the project before commissioning so the controller-side GSD matches the head-end in the cabinet. ## Mechanical and environmental envelope The module occupies 100 mm of DIN-rail width, stands 117 mm tall, and sits 74 mm into the cabinet — no BusAdapter fitted, the unit is approximately 220 g. Autonegotiation and autocrossing are handled by the BusAdapter, so the physical Ethernet segment does not need a manual switch setting; tool-changer docking is supported on both the docking station and docking unit for robotics-side applications. Strain relief is an optional accessory rather than a fixed feature — order it as a separate line if the cabinet sees vibration or if the cable routing puts lateral load on the BusAdapter. ## Sourcing posture","metaTitle":"Siemens 6ES7155-6AU30-0CN0 PROFINET IO, IRT 4 ms","metaDescription":"Siemens 6ES7155-6AU30-0CN0 ET 200SP PN interface module, current production, 24 V, IRT 250 µs–4 ms, MRP, 3 ports via 2 BusAdapter slots.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Communication Modules"],"specifications":{"I2t":"0.34 A²·s","IRT":"Yes; 250 µs to 4 ms in 125 µs frame","MRP":"Yes","LLDP":"Yes","MRPD":"No","SNMP":"Yes","Depth":"74 mm","Width":"100 mm","title":"6ES7155-6AU30-0CN0","Alarms":"Yes","Height":"117 mm","TCP/IP":"Yes","RUN LED":"Yes; green LED","100 Mbps":"Yes","I&M data":"Yes; I&M0 to I&M3","ERROR LED":"Yes; red LED","MAINT LED":"Yes; Yellow LED","Max. Cycle":"4 ms","Modbus TCP":"No","PROFIenergy":"Yes","Via Dataset":"Yes","description":"SIMATIC ET 200SP, PROFINET, 3-port interface module, IM 155-6PN/3 High Feature, 2 slots for BusAdapter, max. 64 I/O modules and 16 ET 200AL modules, S2 redundancy, multi-hotswap, 0.25 ms, isochronous mode, optional PN strain relief, including server module","Autocrossing":"Yes","Equidistance":"Yes","Jitter, max.":"1 µs","Tool changer":"Yes; Docking station and docking unit","Shared device":"Yes","Strain relief":"Yes; Optional","Security level":"According to Security Level 1 Test Cases V1.1.1","via BU/BA Send":"Yes; + 16 ET 200AL modules","Autonegotiation":"Yes","Number of ports":"3; Via 2 BusAdapter slots","Weight, approx.":"220 g; without BusAdapter","lifecycle_stage":"current","Firmware version":"V4.2","Isochronous mode":"Yes","Media redundancy":"Yes; PROFINET MRP","Power loss, typ.":"4.9 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","Status indicator":"Yes","H-Sync forwarding":"Yes","Integrated Switch":"Yes","FW update possible":"Yes","PROFINET IO Device":"Yes","Prioritized startup":"Yes","Diagnostics function":"Yes","HW functional status":"From FS02","Inrush current, max.":"9 A","Shortest Clock Pulse":"250 µs","BusAdapter (PROFINET)":"Yes; BA 2x RJ45, BA 2x FC, BA 2x SCRJ, BA SCRJ/RJ45, BA SCRJ/FC, BA 2x LC, BA LC/RJ45, BA LC/FC","Isolation tested with":"707 V DC (type test)","Network loading class":"3","Open IE communication":"Yes","Transmission procedure":"PROFINET with 100 Mbit/s full duplex (100BASE-TX)","Local coupling, IO data":"Yes","Short-circuit protection":"Yes","Current consumption, max.":"950 mA","Between Different Circuits":"Safety extra low voltage SELV","Bus cycle time (TDP), min.":"250 µs","Number of coupling modules":"16","Reverse polarity protection":"Yes","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-30 °C; No condensation","Connection display LINK TX/RX":"Yes; 2x green link LEDs on BusAdapter","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-30 °C; No condensation","Number of PROFINET interfaces":"1; 3 ports (switch)","Address space per module, max.":"288 byte; For input and output data respectively","Address space per station, max.":"1 440 byte","PROFINET system redundancy (S2)":"Yes; NAP S2","Current consumption (rated value)":"175 mA; At 24 V, 2 slots 2x RJ45 BusAdapter, no I/O modules","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Between Backplane Bus And Electronics":"No","Between Supply And All Other Circuits":"No","Number of submodules per station, max.":"256","PROFINET from GSD version/GSD revision":"GSDML V2.34","between PROFINET and all other circuits":"Yes; 1500 V AC (type test)","Mains/voltage failure stored energy time":"10 ms","Number of coupling submodules per module":"4","Monitoring of the supply voltage (PWR-LED)":"Yes; green PWR LED","Installation altitude above sea level, max.":"5 000 m; Restrictions for installation altitudes > 2 000 m, see manual","Quantity of operable ET 200AL modules, max.":"16","Quantity of operable ET 200SP modules, max.":"64","STEP 7 configurable/integrated from version":"Configurable via GSD file","Module swapping during operation (hot swapping)":"Yes; Multi-hot swapping","Number of IO Controllers with shared device, max.":"4","STEP 7 TIA Portal configurable/integrated from version":"V15.1","Number of MtM communication relationships/connections, max.":"16"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$346.71 – $1,018.86","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0216facfef6dc8c772a6cb0782c6481d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1266016&mlfb=6ES7155-6AU30-0CN0"},"ai":{"faq":[{"question":"What IRT timing does the head-end support?","answer":"IRT is supported with send clocks from 250 µs to 4 ms in 125 µs steps, with maximum jitter of 1 µs, equidistance enabled, and H-Sync forwarding on."},{"question":"What is the listed I²t value for this module?","answer":"The I²t figure on this line is 0.34 A²·s."},{"question":"How many Ethernet ports and what topology does the module expose?","answer":"Three Ethernet ports are exposed through two BusAdapter slots, which can also feed a downstream ET 200AL island of up to 16 modules via BU/BA send."},{"question":"Does the module support MRPD media redundancy?","answer":"No — PROFINET MRP is supported, but MRPD is not, so ring designs relying on MRPD parallel-redundant reconfiguration will not be carried by this head-end."},{"question":"What is the supply voltage and typical dissipation?","answer":"The rated supply is 24 V DC with a typical power loss of 4.9 W."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7155-6AU30-0CN0","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/6ES7155-6AU30-0CN0 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}}