{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7212-1HF40-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7212-1HF40-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7212-1HF40-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7212-1HF40-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1200, CPU 1212C, 6ES7212-1HF40-0XB0, compact controller with 2 MB integrated memory, OPC UA server, MODBUS TCP, failsafe FBD/LAD support.","salesMarkdown":"## Compact controller with OPC UA and failsafe logic The Siemens 6ES7212-1HF40-0XB0 is a SIMATIC S7-1200 CPU 1212C controller running a full OPC UA server and MODBUS TCP stack, with 2 Mbyte of integrated program and data memory. Rated for -40 to 70 °C ambient, it fits enclosures without climate control or cold-weather installations. Ladder and function block diagram programming both include failsafe blocks, eliminating the need for a separate safety relay on smaller applications. The 90 x 100 x 75 mm footprint (width/height/depth) matches the standard S7-1200 slot in a distribution board or control panel. Connection capacity: up to 4 PG, 12 HMI, 8 S7, 8 open user, 2 web, and 0 reserved OPC UA connections, expandable to 64 total. ## Programming and connectivity overview Step 7 TIA Portal handles engineering; DCP (Discovery and Configuration Protocol) gives automatic PROFINET addressing at first power-on. Supports forcing on peripheral inputs/outputs excluding fail-safe channels, useful during FAT/SAT without rewiring. PROFIBUS master or slave can be added via CM 1243-5 or CM 1242-5 modules; the CPU has no native PROFIBUS submodule. OPC UA server runs alongside Modbus TCP, TCP/IP, and UDP; SNMP and LLDP are available for network management.","metaTitle":"Siemens 6ES7212-1HF40-0XB0 S7-1200 CPU, 2 MB, OPC UA","metaDescription":"Siemens 6ES7212-1HF40-0XB0 SIMATIC S7-1200 CPU 1212C controller with 2 MB memory, OPC UA server, MODBUS, failsafe FBD/LAD. -40 to 70°C. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","FBD":"Yes; incl. failsafe","I2t":"0.8 A²·s","IRT":"No","LAD":"Yes; incl. failsafe","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":"6ES7212-1HF40-0XB0","Height":"100 mm","MODBUS":"Yes","OPC UA":"Yes; OPC UA Server","TCP/IP":"Yes","24 V DC":"Yes","CE mark":"Yes","Forcing":"Yes; peripheral inputs/outputs (without fail-safe)","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":"Yes","Supported":"Yes","Variables":"inputs/outputs, bit memories, DBs, peripheral I/Os (without fail-safe), times, counters","0 to +10 V":"Yes","Adjustable":"Yes","Integrated":"2 Mbyte","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 1212FC, compact CPU, DC/DC/relay, onboard I/O: 8 DI 24 V DC; 6 DO relay 2 A; 2 AI 0-10 V DC, Power supply: DC 20.4-28.8V DC, Program/data memory 100 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), method call, 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 & 3 @ 30 kHz, differential: 3 @ 80 kHz & 3 @ 30 kHz","Weight, approx.":"385 g","Without Battery":"Yes","lifecycle_stage":"current","\"0\" To \"1\", Max.":"10 ms; max.","\"1\" To \"0\", Max.":"10 ms; max.","Block protection":"Yes","Firmware version":"V4.5","Isochronous mode":"No","Maintenance-Free":"Yes","Media redundancy":"No","Power loss, typ.":"9 W","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.":"30 W with DC, 200 W with AC","PROFINET IO Device":"Yes","up to 40 °C, max.":"8","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","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"12 A; at 28.8 V","Frequency measurement":"Yes","Open IE communication":"Yes; Optionally also encrypted","RCM (formerly C-TICK)":"Yes","SIL acc. to IEC 61508":"SIL 3","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","Number of analog inputs":"2","Number of relay outputs":"6","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":"8; 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.":"1 200 mA; CPU with all expansion modules","For Word Operations, Typ.":"1.7 µs; / instruction","Number of digital outputs":"6; Relays","Publishing interval, min.":"200 ms","With Resistive Load, Max.":"2 A","Application authentication":"Available security policies: None, Basic128Rsa15, Basic256Rsa15, Basic256Sha256","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","Vertical Installation, Max.":"45 °C","Vertical Installation, Min.":"0 °C","Input resistance (0 to 10 V)":"≥100k ohms","Conversion time (per channel)":"625 µs","Horizontal Installation, Max.":"55 °C","Horizontal Installation, Min.":"0 °C","Number of configurable Traces":"2","Test voltage at air discharge":"8 kV","Number of server methods, max.":"20","Number of operating cycles, max.":"mechanically 10 million, at rated load voltage 100 000","for backplane bus (5 V DC), max.":"1 000 mA; Max. 5 V DC for SM and CM","Current consumption (rated value)":"400 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":"2","Number of modules per system, max.":"3 comm. modules, 1 signal board, 2 signal modules","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":"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","SO2 at RH < 60% without condensation":"S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free","Activation/deactivation of IO Devices":"Yes","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","Performance level according to ISO 13849-1":"PLe","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","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","Number of IO Controllers with shared device, max.":"2","Of Which Inputs Usable For Technological Functions":"4; 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":"Up to 4 with SB 1222","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":"$275.59 – $738.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d2fe97d1cb6429155141ce1e5cc2b88f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=725666&mlfb=6ES7212-1HF40-0XB0"},"ai":{"faq":[{"question":"What is DCP on this CPU?","answer":"DCP (Discovery and Configuration Protocol) is supported, enabling automatic device identification and IP assignment over PROFINET without separate configuration tools."},{"question":"What does FBD with failsafe mean?","answer":"FBD (Function Block Diagram) programming includes failsafe blocks, allowing safety functions to be programmed in block logic without a separate safety controller."},{"question":"What compliance marks does this CPU carry?","answer":"It carries cULus and CE certification, covering North American and European regulatory requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7212-1HF40-0XB0","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/6ES7212-1HF40-0XB0 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}}