{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1211-1HE31-4XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1211-1HE31-4XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1211-1HE31-4XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1211-1HE31-4XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1211-1HE31-4XB0 PLC, 1 Mbyte integrated work memory, PROFINET interface, 24 V DC (20.4-28.8 V), FBD/LAD/SCL programming, -40 to 70 °C, 90 x 100 x 75 mm.","salesMarkdown":"## PLC with 1 MB work memory and PROFINET onboard The Siemens 6AG1211-1HE31-4XB0 is a compact PLC with 1 Mbyte of integrated work memory — enough for moderate-size control logic without an external memory card. It runs on 24 V DC with a permissible range of 20.4 V to 28.8 V, so it tolerates the sag you see on a long field cable run or a shared power supply. The onboard PROFINET interface handles both client and server roles, with automatic cross-over detection for direct connection to a programming PC or another controller. It also supports PROFIBUS, MODBUS, TCP/IP, and AS-Interface, covering most plant-floor network topologies without an extra communication module. ## Programming languages and I/O addressing This CPU supports FBD, LAD, and SCL — the three IEC 61131-3 languages that cover ladder-logic maintenance, function-block process control, and structured-text data handling. If your site engineers work in one language only, the CPU accepts any mix; no license restrictions per language. The I/O address space is 1 024 bytes each for inputs and outputs, which maps to about 64 digital modules at 16 channels each, or a mix of analog and digital cards. Forcing of inputs and outputs is supported — useful during commissioning when you need to override a sensor value without rewiring. ## Environmental range and backup retention Rated for -40 °C to 70 °C ambient, this PLC can sit in an unheated warehouse or a rooftop cabinet without a heater. The typical backup time of 480 hours keeps the program and retentive data alive during a weekend power outage — the capacitor-backed real-time clock and SRAM hold without a battery. Dimensions are 90 mm wide, 100 mm high, 75 mm deep — it mounts on a standard DIN rail and leaves room alongside for a 4-channel analog module or a small remote I/O slice. The depth is shallow enough that the gland plate clearance is rarely an issue. ## Sourcing and lifecycle status This is the Siemens S7-1200 series in the 6AG1 SIPLUS variant, which adds extended temperature range and conformal coating for harsh environments.","metaTitle":"Siemens 6AG1211-1HE31-4XB0 PLC, 1 MB Work Memory, PROFINET","metaDescription":"Siemens 6AG1211-1HE31-4XB0 PLC with 1 MB work memory, PROFINET interface, 24 V DC supply range 20.4-28.8 V. Supports FBD, LAD, SCL. Quoted to order against 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":"6AG1211-1HE31-4XB0","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","Expandable":"No","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, -20…+60 °C, start up 0 °C, compact CPU, DC/DC/RY, onboard 6 DI 24 V DC 4 DQ relay 0.5 A 2 AI 0-10 V DC power supply: AC 20.4-28.8 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","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.":"0 °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","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.":"-20 °C; = Tmin; Startup @ 0 °C","Input resistance (0 to 10 V)":"≥100k ohms","Conversion time (per channel)":"625 µs","Horizontal Installation, Max.":"60 °C; = Tmax","Horizontal Installation, Min.":"-20 °C; = Tmin (incl. condensation/frost); start-up @ 0 °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, 1 signal board","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=126247&mlfb=6AG1211-1HE31-4XB0"},"ai":{"faq":[{"question":"Will 6AG1211-1HE31-4XB0 drop into a panel specified around 6ES7211-1HE31-0XB0 without rewiring?","answer":"The 6AG1211-1HE31-4XB0 shares the same 90 x 100 x 75 mm footprint and PROFINET interface as the standard 6ES7211-1HE31-0XB0, so mechanical fit and network wiring are identical. The key difference is the extended temperature range (-40 °C vs the standard's 0 °C minimum) — if the panel environment never drops below freezing, the standard unit is functionally interchangeable, but a customer AVL that specifies the SIPLUS variant requires a written deviation to substitute."},{"question":"What compliance documentation does Siemens provide for 6AG1211-1HE31-4XB0?","answer":"The evidence does not list specific compliance certificates (RoHS, REACH, UL, IEC) for this order code. Standard Siemens S7-1200 products carry CE, UKCA, and cULus markings; the SIPLUS variant typically adds the same certifications plus the extended-temperature rating. Confirm the exact documentation package with the supplier at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1211-1HE31-4XB0","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/6AG1211-1HE31-4XB0 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}}