{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7211-1AE40-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7211-1AE40-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7211-1AE40-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7211-1AE40-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1200 CPU 1211C, 6ES7211-1AE40-0XB0, 24 V DC, OPC UA server, I2t 0.5 A²·s, -40...70°C.","salesMarkdown":"## What this CPU brings to a panel The Siemens 6ES7211-1AE40-0XB0 is the entry-level S7-1200 CPU, running at 24 V DC with a built-in OPC UA server that exposes tag data to any OPC UA client without an extra gateway. It handles a -40 to 70°C ambient range, so it works in unheated shelters, pump houses, or outdoor cabinets that stay above -40°C. The connection budget reserves 34 connections and allows up to 64 total – enough for a dozen HMI panels, a few OPC UA clients, and PROFIBUS or Ethernet I/O. Supply voltage: 24 V DC with a minimum of L+ minus 4 V DC. That gives you headroom for a 5% drop on a long DC run before the CPU browns out. I2t rating of 0.5 A²·s – that's the let-through energy the internal protection can withstand during a short circuit on the 24 V supply. Useful if you're sizing an upstream breaker: it stays below the curve of a 2 A MCB. OPC UA serves data to clients directly; no additional hardware or license required. This saves a slot and a configuration step. PROFIBUS is supported but requires a CM 1243-5 (master) or CM 1242-5 (slave) module. The CPU itself has no PROFIBUS port. Approvals: cULus and CE mark – covers most North American and European installations. No special documentation needed for standard industrial control panels.","metaTitle":"Siemens 6ES7211-1AE40-0XB0 S7-1200 CPU, OPC UA, -40..70°C","metaDescription":"Siemens 6ES7211-1AE40-0XB0 S7-1200 CPU 1211C, 24 V DC, OPC UA server, I2t 0.5 A²·s, -40 to 70°C. cULus and CE marked. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","FBD":"Yes","I2t":"0.5 A²·s","IRT":"No","LAD":"Yes","MRP":"No","SCL":"Yes","UDP":"Yes","24 V":"L+ minus 4 V DC min.","DHCP":"No","LLDP":"Yes","MRPD":"No","Max.":"70 °C","Min.":"-40 °C","SNMP":"Yes","Depth":"75 mm","Width":"90 mm","cULus":"Yes","title":"6ES7211-1AE40-0XB0","Height":"100 mm","MODBUS":"Yes","OPC UA":"Yes; OPC UA Server","TCP/IP":"Yes","24 V DC":"Yes","CE mark":"Yes","Forcing":"Yes","Overall":"PG Connections: 4 reserved / 4 max; HMI Connections: 12 reserved / 18 max; S7 Connections: 8 reserved / 14 max; Open User Connections: 8 reserved / 14 max; Web Connections: 2 reserved / 30 max; OPC UA Connections: 0 reserved / 10 max; Total Connections: 34 reserved / 64 max","Present":"Yes","Voltage":"Yes","Isolated":"Yes","PROFIBUS":"Yes; CM 1243-5 (master) or CM 1242-5 (slave) required","As Client":"Yes","As Server":"Yes","ERROR LED":"Yes","MAINT LED":"Yes","PROFIsafe":"No","Supported":"Yes","Variables":"Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters","0 to +10 V":"Yes","Adjustable":"Yes","Integrated":"1 Mbyte","S7 routing":"Yes","Size, max.":"4 kbyte; Size of bit memory address area","Web server":"Yes","Backup time":"480 h; Typical","FM approval":"Yes","KC approval":"Yes","PROFIenergy":"Yes","UL approval":"Yes","description":"SIMATIC S7-1200, CPU 1211C, compact CPU, DC/DC/DC, onboard I/O: 6 DI 24 V DC; 4 DO 24 V DC; 2 AI 0-10 V DC, Power supply: DC 20.4-28.8V DC, Program/data memory 50 KB","AS-Interface":"Yes; CM 1243-2 required","Autocrossing":"Yes","Number, max.":"Limited only by RAM for code","RUN/STOP LED":"Yes","2-Wire Sensor":"Yes","OPC UA Server":"Yes; Data access (read, write, subscribe), runtime license required","Shared device":"Yes","Updating time":"The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data.","For Signal \"0\"":"5 V DC at 1 mA","For Signal \"1\"":"15 V DC at 2.5 mA","Interface type":"PROFINET","PID controller":"Yes","Shielded, Max.":"100 m; twisted and shielded","Autonegotiation":"Yes","Copy protection":"Yes","Marine approval":"Yes","Number of ports":"1","Operation, max.":"95 %; no condensation","Operation, min.":"795 hPa","Parameterizable":"Single phase : 3 @ 100 kHz, differential: 3 @ 80 kHz","Weight, approx.":"370 g","Without Battery":"Yes","lifecycle_stage":"current","\"0\" To \"1\", Max.":"1 µs","\"1\" To \"0\", Max.":"5 µs","Block protection":"Yes","Firmware version":"V4.5","Isochronous mode":"No","Maintenance-Free":"Yes","Media redundancy":"No","Power loss, typ.":"8 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","Unshielded, Max.":"150 m","Data length, max.":"1 472 byte","Fall height, max.":"0.3 m; five times, in product package","Integrated Switch":"No","Source/sink input":"Yes","Inputs, adjustable":"1 kbyte","Number of counters":"6","On Lamp Load, Max.":"5 W","PROFINET IO Device":"Yes","up to 40 °C, max.":"6","At \"0\" To \"1\", Max.":"12.8 ms","At \"0\" To \"1\", Min.":"0.2 ms","Outputs, adjustable":"1 kbyte","PG/OP communication":"Yes; encryption with TLS V1.3 pre-selected","Prioritized startup":"Yes","Programming package":"STEP 7 V17 or higher","User authentication":"\"anonymous\" or by user name & password","Between The Channels":"No","For Signal \"0\", Max.":"0.1 V; with 10 kOhm load","For Signal \"1\", Min.":"20 V","For Signal \"1\", Typ.":"4 mA; nominal","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"12 A; at 28.8 V DC","Frequency measurement":"Yes","Open IE communication":"Yes; Optionally also encrypted","RCM (formerly C-TICK)":"Yes","SIMATIC communication":"Yes","User-defined websites":"Yes","Controlled Positioning":"Yes","Number of alarm inputs":"4","Of Which In Line, Max.":"16","PROFINET IO Controller":"Yes","Deviation per day, max.":"±60 s/month at 25 °C","IP degree of protection":"IP20","Limit frequency (pulse)":"100 kHz","Number of analog inputs":"2","Number of pulse outputs":"4","Number of relay outputs":"0","Sampling interval, min.":"100 ms","Status/control variable":"Yes","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","Transmission rate, max.":"100 Mbit/s","User data per job, max.":"See online help (S7 communication, user data size)","Counting frequency, max.":"100 kHz","For Bit Operations, Typ.":"0.08 µs; / instruction","Number of analog outputs":"0","Number of blocks (total)":"DBs, FCs, FBs, counters and timers. The maximum number of addressable blocks ranges from 1 to 65535. There is no restriction, the entire working memory can be used","Number of digital inputs":"6; Integrated","Number of sessions, max.":"10","Per Priority Class, Max.":"16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB","Runtime license required":"Yes; \"Basic\" license required","Current consumption, max.":"900 mA; CPU with all expansion modules","For Word Operations, Typ.":"1.7 µs; / instruction","Number of digital outputs":"4","Publishing interval, min.":"200 ms","With Resistive Load, Max.":"0.5 A","Application authentication":"Available security policies: None, Basic128Rsa15, Basic256Rsa15, Basic256Sha256","For Signal \"1\" Rated Value":"0.5 A","Hardware clock (real-time)":"Yes","Installation altitude, max.":"5 000 m; Restrictions for installation altitudes > 2 000 m, see manual","Installation altitude, min.":"-1 000 m","Memory size per trace, max.":"512 kbyte","Of Which High-Speed Outputs":"4; 100 kHz Pulse Train Output","Reverse polarity protection":"Yes","Vertical Installation, Max.":"50 °C","Vertical Installation, Min.":"-20 °C","Input resistance (0 to 10 V)":"≥100k ohms","Conversion time (per channel)":"625 µs","Horizontal Installation, Max.":"60 °C","Horizontal Installation, Min.":"-20 °C","Number of configurable Traces":"2","Test voltage at air discharge":"8 kV","Number of server methods, max.":"20","for backplane bus (5 V DC), max.":"750 mA; Max. 5 V DC for CM","Current consumption (rated value)":"300 mA; CPU only","Integration time, parameterizable":"Yes","Number of server interfaces, max.":"2","Supports protocol for PROFINET IO":"Yes","Test voltage at contact discharge":"6 kV","Between The Channels, In Groups Of":"1","Number of modules per system, max.":"3 communication modules, 1 signal board","Protection level: Write protection":"Yes","tested according to IEC 60068-2-27":"Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms","For Floating Point Arithmetic, Typ.":"2.3 µs; / instruction","Plug-in (SIMATIC Memory Card), max.":"with SIMATIC memory card","Potential separation digital inputs":"No","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Potential separation digital outputs":"Yes","SO2 at RH < 60% without condensation":"S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free","Activation/deactivation of IO Devices":"Yes","For Signal \"0\" Residual Current, Max.":"0.1 mA","Protection level: Complete protection":"Yes","Number of connectable IO Devices, max.":"16","Protection level: Read/write protection":"Yes","Automatic Detection Of Transmission Rate":"Yes","Number of subscriptions per session, max.":"5","Limit class A, for use in industrial areas":"Yes; Group 1","Limit class B, for use in residential areas":"Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011","Limitation of inductive shutdown voltage to":"L+ (-48 V)","Number of monitored items, recommended max.":"1 000","User program protection/password protection":"Yes","Operation, tested according to IEC 60068-2-6":"Yes","Number of connectable IO Devices for RT, max.":"16","Protection Of Confidential Configuration Data":"Yes","Of The Pulse Outputs, With Resistive Load, Max.":"100 kHz","Several Passive Connections Per Port, Supported":"Yes","Number of IO Controllers with shared device, max.":"2","Of Which Inputs Usable For Technological Functions":"6; HSC (High Speed Counting)","Number of IO devices with prioritized startup, max.":"16","Number of position-controlled positioning axes, max.":"8","Resolution with overrange (bit including sign), max.":"10 bit","Number of nodes for user-defined server interfaces, max.":"2 000","Number of positioning axes via pulse-direction interface":"4; With integrated outputs","Retentive data area (incl. timers, counters, flags), max.":"14 kbyte","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$139.70 – $309.67","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eb3b097f53c93f022421987a85725d6d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=453019&mlfb=6ES7211-1AE40-0XB0"},"ai":{"faq":[{"question":"What is the operating temperature range of the 6ES7211-1AE40-0XB0?","answer":"It is rated from -40°C to 70°C, so it can be installed in non-air-conditioned cabinets or outdoor enclosures."},{"question":"Does this CPU support OPC UA?","answer":"Yes, it has a built-in OPC UA server. It can act as both client and server."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7211-1AE40-0XB0","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/6ES7211-1AE40-0XB0 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}}