{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1211-1HE31-2XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1211-1HE31-2XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1211-1HE31-2XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1211-1HE31-2XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1200 SIPLUS CPU 1211C, 6AG1211-1HE31-2XB0, wide temp -40…70°C, 24V DC 20.4-28.8V, 1 Mbyte memory, PROFINET with MODBUS TCP.","salesMarkdown":"The Siemens 6AG1211-1HE31-2XB0 is a SIPLUS variant of the S7-1200 CPU 1211C, built for applications needing a wider operating temperature range of -40°C to 70°C and a permissible 24 V DC supply from 20.4 V to 28.8 V. It runs standard TIA Portal projects using LAD, FBD, or SCL and communicates over PROFINET with integrated MODBUS TCP and UDP client/server capability. ## Key ratings for the sourcing decision Integrated memory is 1 Mbyte, with a backup time of 480 h (typical) to retain data on power loss. The process image size is 1 024 bytes each for inputs and outputs, which defines the maximum addressable I/O, not the physical count. Forcing of inputs and outputs is supported, and the voltage supply is isolated. In addition to PROFINET, the CPU supports MODBUS (RTU and TCP), UDP, PROFIBUS (as master via CM?), and AS-Interface via CM modules. The PROFINET interface has autocrossing and autonegotiation, and shielded cable runs up to 100 m twisted-pair. No PROFIsafe onboard – that requires an external F-module. ## Physical dimensions Dimensions are 90 mm wide, 100 mm high, and 75 mm deep – the same footprint as the standard S7-1200 CPU 1211C. Panel cutout and DIN rail clip are identical, so a swap from a standard model to this SIPLUS version requires no enclosure modification.","metaTitle":"Siemens 6AG1211-1HE31-2XB0 SIPLUS S7-1200 CPU 1211C, -40-70°","metaDescription":"Siemens 6AG1211-1HE31-2XB0 SIPLUS S7-1200 CPU 1211C rated -40 to 70°C, 24V DC 20.4-28.8V. 1 Mbyte memory, 480h backup. PROFINET, MODBUS, LAD/FBD/SCL. Source to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FBD":"Yes","LAD":"Yes","SCL":"Yes","UDP":"Yes","24 V":"Permissible range: 20.4V to 28.8V","Max.":"70 °C","Min.":"-40 °C","Depth":"75 mm","Width":"90 mm","title":"6AG1211-1HE31-2XB0","Height":"100 mm","Inputs":"1 024 byte","MODBUS":"Yes","TCP/IP":"Yes","24 V DC":"Yes","Forcing":"Yes","Outputs":"1 024 byte","Present":"Yes","Voltage":"Yes","Isolated":"Yes","PROFIBUS":"Yes","As Client":"Yes","As Server":"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","Size, max.":"4 kbyte; Size of bit memory address area","Backup time":"480 h; Typical","description":"***spare part*** SIPLUS S7-1200 CPU 1211C DC/DC/relay based on 6ES7211-1HE31-0XB0 with conformal coating, -40…+70 °C, start up -25 °C, signal board: 0, compact CPU, DC/DC/RY, onboard I/O: 6 DI 24 V DC 4 DQ relay 2 A 2 AI 0-10 V DC power supply: AC 20.4-28.8V DC program/data memory 30 KB","AS-Interface":"Yes","Autocrossing":"Yes","Number, max.":"Limited only by RAM for code","2-Wire Sensor":"Yes","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","Parameterizable":"Single phase : 3 @ 100 kHz, differential: 3 @ 80 kHz","Weight, approx.":"380 g","Without Battery":"Yes","lifecycle_stage":"current","\"0\" To \"1\", Max.":"10 ms; max.","\"1\" To \"0\", Max.":"10 ms; max.","Power loss, typ.":"8 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","Unshielded, Max.":"150 m","Fall height, max.":"0.3 m; five times, in product package","Source/sink input":"Yes","Inputs, adjustable":"1 kbyte","Number of counters":"3","On Lamp Load, Max.":"30 W with DC, 200 W with AC","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","Between The Channels":"No","For Signal \"1\", Typ.":"1 mA","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"12 A; at 28.8 V DC","At cold restart, min.":"-25 °C","Frequency measurement":"Yes","User-defined websites":"Yes","Controlled Positioning":"Yes","Number of alarm inputs":"4","PROFINET IO Controller":"Yes","Deviation per day, max.":"±60 s/month at 25 °C","IP degree of protection":"IP20","Number of analog inputs":"2","Number of relay outputs":"4","Status/control variable":"Yes","Counting frequency, max.":"100 kHz","For Bit Operations, Typ.":"0.085 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","Short-circuit protection":"No; to be provided externally","Current consumption, max.":"0.9 A; 24 V DC","For Word Operations, Typ.":"1.7 µs; / instruction","Number of digital outputs":"4; Relays","With Resistive Load, Max.":"2 A","Between Different Circuits":"500 V DC between 24 V DC and 5 V DC","Hardware clock (real-time)":"Yes","Vertical Installation, Max.":"50 °C; = Tmax","Vertical Installation, Min.":"-40 °C; = Tmin; Startup @ -25 °C","Input resistance (0 to 10 V)":"≥100k ohms","Conversion time (per channel)":"625 µs","Horizontal Installation, Max.":"70 °C; = Tmax; > +60 °C Number of simultaneously controllable inputs and outputs max. 50 %; no signal board can be used","Horizontal Installation, Min.":"-40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C","Test voltage at air discharge":"8 kV","For voltage/current measurement":"2","Number of operating cycles, max.":"mechanically 10 million, at rated load voltage 100 000","for backplane bus (5 V DC), max.":"750 mA; Max. 5 V DC for SM and CM","Current consumption (rated value)":"300 mA; Typical","Integration time, parameterizable":"Yes","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, no signal board can be used","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.":"2.5 µs; / instruction","Potential separation digital inputs":"500V AC for 1 minute","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Potential separation digital outputs":"Relays","Automatic Detection Of Transmission Rate":"Yes","Limit class A, for use in industrial areas":"Yes; Group 1","Installation altitude above sea level, max.":"2 000 m","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","Operation, tested according to IEC 60068-2-6":"Yes","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","Of The Pulse Outputs, With Resistive Load, Max.":"1 Hz","Of Which Inputs Usable For Technological Functions":"3; HSC (High Speed Counting)","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m); above 2 000 m max. 132 V AC","Resolution with overrange (bit including sign), max.":"10 bit","STEP 7 TIA Portal configurable/integrated from version":"see entry ID: 109746275","Retentive data area (incl. timers, counters, flags), max.":"10 kbyte","Resistant to commercially available coolants and lubricants":"Yes; Incl. diesel and oil droplets in the air","Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/122ac295d479e4a3e3dc3fe94638a391.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=88215&mlfb=6AG1211-1HE31-2XB0"},"ai":{"faq":[{"question":"What programming languages does the 6AG1211-1HE31-2XB0 support?","answer":"It supports LAD (Ladder Diagram), FBD (Function Block Diagram), and SCL (Structured Control Language) – the full TIA Portal suite for this CPU class."},{"question":"Does it support MODBUS and PROFINET?","answer":"Yes. PROFINET is the primary interface, with built-in MODBUS TCP client/server, UDP, and MODBUS RTU via the serial port (requires CM module). PROFIBUS is also supported via an external module."},{"question":"Can it be forced online?","answer":"Yes, forcing of inputs and outputs is supported – useful for commissioning and debugging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1211-1HE31-2XB0","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/6AG1211-1HE31-2XB0 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}}