{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1214-1BG31-4XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1214-1BG31-4XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1214-1BG31-4XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1214-1BG31-4XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1200 SIPLUS extreme CPU, 6AG1214-1BG31-4XB0, 24 V DC supply, -40 to 70 °C, PROFINET onboard, 4 Mbyte load memory.","salesMarkdown":"## What the 24 V supply range and temperature spec mean for a panel fit The Siemens 6AG1214-1BG31-4XB0 is a SIPLUS extreme variant of the S7-1200 CPU 1214C, built for environments where the standard 0–55 °C range won't hold. It accepts a 24 V DC supply with a permissible range of 20.4 V to 28.8 V — so it rides through a sagging 24 V bus without browning out, which matters when the same supply feeds field sensors and actuators on a long cable run. The operating temperature spans -40 °C to 70 °C, covering cold-start in an unheated enclosure and the heat soak inside a crowded panel next to a drive. That -40 °C floor is the spec that separates this part from the standard 6ES7214-1BG31-0XB0, which bottoms out at 0 °C. The CPU carries a PROFINET interface with two-port switch, autocrossing enabled, so it can be daisy-chained in a line topology without external switches. It supports PROFINET IO as both client and server, and also runs MODBUS TCP/IP and UDP on the same port. ## Memory, I/O map, and programming languages Integrated load memory is 4 Mbyte, enough for a substantial application with multiple function blocks and visualizations. The bit memory address area is limited to 8 kbyte, but the number of code blocks is limited only by the RAM available for code — so the real ceiling is the 4 Mbyte load memory, not a block count. Process-image I/O address space is 1024 bytes each for inputs and outputs. That maps to about 64 digital modules at 16 bytes each, or a mix of analog and specialty modules. The CPU supports forcing of I/O variables, which is useful during commissioning to override a sensor without rewiring. Programming can be done in LAD (ladder), FBD (function block diagram), or SCL (structured text) — all three are supported. An onboard PID controller is also available, so a simple temperature or pressure loop can run directly on the CPU without a separate controller. The real-time clock backup is rated for 480 hours typical, meaning the CPU holds time and date through a weekend power-down without a battery change. ## Sourcing and lifecycle — what to expect when ordering This is a SIPLUS extreme variant, not the standard S7-1200 catalog number. SIPLUS parts are produced in batches aligned with project demand rather than continuous high-volume runs. The standard-temperature equivalent is 6ES7214-1BG31-0XB0, which shares the same CPU 1214C logic but is rated 0–55 °C. If your environment stays within that range and you don't need the extended temperature or conformal coating, the standard part is a drop-in functional replacement. For cold storage, freezer lines, or outdoor cabinets in northern climates, the SIPLUS variant is the correct choice. ## Physical dimensions and mounting The CPU measures 110 mm wide, 100 mm high, and 75 mm deep. The depth includes the PROFINET connector clearance; allow at least 80 mm behind the panel door for cable bend radius.","metaTitle":"Siemens 6AG1214-1BG31-4XB0 PLC, 24 V, -40 to 70 °C, PROFINET","metaDescription":"Siemens 6AG1214-1BG31-4XB0 PLC with 24 V supply (20.4-28.8 V), -40 to 70 °C range, PROFINET interface, 4 Mbyte memory. Available to order. Request a quote.","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":"110 mm","Height":"100 mm","Inputs":"1 024 byte","MODBUS":"Yes","TCP/IP":"Yes","Forcing":"Yes","Outputs":"1 024 byte","Present":"Yes","Voltage":"Yes","120 V AC":"Yes","230 V AC":"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":"4 Mbyte","Size, max.":"8 kbyte; Size of bit memory address area","Backup time":"480 h; Typical","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":"Yes; Single phase : 3 at 100 kHz & 3 at 30 kHz, differential: 3 at 80 kHz & 3 at 30 kHz","Weight, approx.":"455 g","Without Battery":"Yes","lifecycle_stage":"current","\"0\" To \"1\", Max.":"10 ms; max.","\"1\" To \"0\", Max.":"10 ms; max.","Power loss, typ.":"14 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.":"14","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.":"20 A; at 264 V","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":"10","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":"14; Integrated","Short-circuit protection":"No; to be provided externally","For Word Operations, Typ.":"1.7 µs; / instruction","Number of digital outputs":"10; 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","Permissible Range, Lower Limit":"47 Hz","Permissible Range, Upper Limit":"63 Hz","Number of operating cycles, max.":"mechanically 10 million, at rated load voltage 100 000","for backplane bus (5 V DC), max.":"1 600 mA; Max. 5 V DC for SM and CM","Current consumption (rated value)":"100 mA at 120 V AC; 50 mA at 240 V AC","Integration time, parameterizable":"Yes","Supports protocol for PROFINET IO":"Yes","Test voltage at contact discharge":"6 kV","Between The Channels, In Groups Of":"2","Number of modules per system, max.":"3 comm. modules, 1 signal board, 8 signal modules","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 (AC)":"85 V","permissible range, upper limit (AC)":"264 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":"6; 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":"$3,937.97","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=412737&mlfb=6AG1214-1BG31-4XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6AG1214-1BG31-4XB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy Siemens 6AG1214-1BG31-4XB0 and how do I get a price?","answer":"No stock-holding claim is made — each order is quoted against the BOM quantity."},{"question":"What is the difference between 6AG1214-1BG31-4XB0 and 6ES7214-1BG31-0XB0?","answer":"The 6AG1214-1BG31-4XB0 is the SIPLUS extreme variant rated for -40 °C to 70 °C, while the standard 6ES7214-1BG31-0XB0 is rated 0 °C to 55 °C. Both share the same CPU 1214C logic, I/O capacity, and PROFINET interface. The SIPLUS variant also includes conformal coating for humidity and corrosive gas resistance. If your application stays within 0–55 °C in a clean environment, the standard part is a functional equivalent."},{"question":"Is 6AG1214-1BG31-4XB0 a direct replacement for 6ES7214-1BG31-0XB0?","answer":"Yes, the 6AG1214-1BG31-4XB0 is a direct mechanical and electrical replacement for the 6ES7214-1BG31-0XB0. Same mounting footprint, same 24 V supply range, same PROFINET interface, same I/O address space. The only difference is the extended temperature range and conformal coating on the SIPLUS variant. A program written for the standard CPU loads and runs identically on the SIPLUS version."},{"question":"What temperature range does 6AG1214-1BG31-4XB0 support?","answer":"This covers cold-start in unheated enclosures and the heat soak inside a crowded panel next to drives or power supplies. The permissible 24 V supply range is 20.4 V to 28.8 V, so it rides through a sagging bus without browning out."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1214-1BG31-4XB0","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/6AG1214-1BG31-4XB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}