{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7314-6BF00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7314-6BF00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7314-6BF00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7314-6BF00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-300 CPU 314C-2 PtP, order code 6ES7314-6BF00-0AB0, compact CPU with 48 KB integrated work memory, 248 digital inputs / 124 digital outputs, RS 485 point-to-point interface, and support for multiple IEC programming languages.","salesMarkdown":"## CPU memory and I/O count — the fit decision The Siemens 6ES7314-6BF00-0AB0 CPU 314C-2 PtP carries 48 kbyte of integrated work memory for program and data — no memory card required for basic operation, though a Micro Memory Card can be used for firmware updates or transport. Onboard I/O handles 248 digital inputs and 124 digital outputs, enough for a medium-sized machine cell without an expansion rack. ## Programming and communication profile This CPU supports LAD, STL, SCL, FBD, and GRAPH — the full IEC 61131-3 language set for the S7-300 family, plus CFC for continuous-function chart engineering. The integrated PtP interface runs RS 485 (RS 422/485 X.27) with protocols including 3964(R), RK 512, and ASCII — direct connection to drives, barcode readers, or serial printers without a separate CP. ## Panel fit and expansion Dimensions are 120 mm wide × 125 mm high × 130 mm deep — occupies three standard S7-300 slot widths on the DIN rail. Supports up to 8 function modules (FM) and up to 4 PtP CPs or 2 LAN CPs via the backplane bus, though the compact CPU itself is not expandable with additional I/O racks.","metaTitle":"Siemens 6ES7314-6BF00-0AB0 CPU 314C-2 PtP, 48 KB Memory","metaDescription":"Siemens 6ES7314-6BF00-0AB0 CPU 314C-2 PtP PLC with 48 KB integrated work memory, 248 DI / 124 DO, RS 485 PtP interface.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FM":"8","CFC":"Yes","FBD":"Yes","LAD":"Yes","MPI":"No","SCL":"Yes","STL":"Yes","Type":"SFB","ASCII":"Yes","Depth":"130 mm","GRAPH":"Yes","Width":"120 mm","Height":"125 mm","Inputs":"248","Number":"1","Pt 100":"Yes","RK 512":"Yes","RS 485":"Yes; RS 422 / 485 (X.27)","STEP 7":"Yes; V5.1 SP2","via CP":"1","CP, LAN":"2","CP, PtP":"4","Current":"Yes","Outputs":"124","Overall":"12","Present":"Yes","Voltage":"Yes","3964 (R)":"Yes","Isolated":"Yes","0 to 10 V":"Yes","As Client":"No","As Server":"Yes","HiGraph®":"Yes","Supported":"Yes","0 to +10 V":"Yes","0 to 20 mA":"Yes","Adjustable":"Yes","Expandable":"No","Integrated":"48 kbyte; For program and data","Resistance":"Yes","Size, max.":"16 kbyte","Lower Limit":"10 ms","Upper Limit":"9 990 s","Number, max.":"256 byte","0 To 600 Ohms":"Yes","2-Wire Sensor":"Yes","4 mA to 20 mA":"Yes","-10 V to +10 V":"Yes","For Signal \"0\"":"-3 to +5V","For Signal \"1\"":"+15 to +30 V","Nesting levels":"8","PID controller":"Yes","Shielded, Max.":"1 000 m","Parameterizable":"Yes; 0.1 / 0.3 / 3 / 15 ms","Weight, approx.":"680 g","Without Battery":"Yes; Program and data","lifecycle_stage":"eol_hot","-20 mA to +20 mA":"Yes","Power loss, typ.":"14 W","Rated value (DC)":"24 V","S7 communication":"Yes","Unshielded, Max.":"600 m","PROFIBUS DP slave":"No","expandable FEPROM":"Yes; with Micro Memory Card (MMC)","Cable length, max.":"1 200 m","Number of counters":"4","PROFIBUS DP master":"No","Per Priority Class":"8","up to 40 °C, max.":"8 A","up to 60 °C, max.":"4 A","At \"0\" To \"1\", Max.":"8 µs","PG/OP communication":"Yes","For Signal \"1\", Min.":"L+ (-0.8 V)","For Signal \"1\", Typ.":"8 mA","Inrush current, typ.":"11 A","Frequency measurement":"Yes","Number of connections":"12","Retentivity available":"Yes; MB 0 to MB 255","Controlled Positioning":"Yes","Modules per rack, max.":"31","Resistance thermometer":"Yes","S7 basic communication":"Yes","Limit frequency (pulse)":"2.5 kHz","Number of analog inputs":"4","Number of pulse outputs":"4","Transmission rate, max.":"187.5 kbit/s","User data per job, max.":"64 kbyte","expandable FEPROM, max.":"4 Mbyte","For Bit Operations, Max.":"0.2 µs","For Bit Operations, Typ.":"0.1 µs","Number of analog outputs":"2","Number of digital inputs":"24","Number of time alarm OBs":"1","Short-circuit protection":"Yes; Clocked electronically","Size of GD packets, max.":"22 byte","For Word Operations, Typ.":"0.5 µs","Global data communication":"Yes","Number of delay alarm OBs":"1","Number of digital outputs":"16","Point-to-point connection":"Yes","With Inductive Load, Max.":"0.5 Hz","With Resistive Load, Max.":"100 Hz","with ASCII protocol, max.":"19.2 kbit/s","Hardware clock (real-time)":"Yes","with RK 512 protocol, max.":"19.2 kbit/s","Number of process alarm OBs":"1","S7 communication, as client":"No","S7 communication, as server":"Yes","usable for OP communication":"11","usable for PG communication":"11","Retentive And Synchronizable":"Yes","with 3964 (R) protocol, max.":"19.2 kbit/s","Conversion time (per channel)":"1 ms","additional within an error OB":"4","reserved for OP communication":"1","reserved for PG communication":"1","Number of cyclic interrupt OBs":"1","For voltage/current measurement":"4","Number of expansion units, max.":"3","For Fixed Point Arithmetic, Typ.":"1 µs","Counting frequency (counter) max.":"60 kHz","Current consumption (rated value)":"800 mA","Integration time, parameterizable":"Yes; 2,5 / 16,6 / 20 ms","usable for S7 basic communication":"8","Between The Channels, In Groups Of":"8","Potential separation analog inputs":"Yes; common for analog I/O","For Floating Point Arithmetic, Typ.":"15 µs","For Signal \"1\" Minimum Load Current":"5 mA","Potential separation analog outputs":"Yes; common for analog I/O","Potential separation digital inputs":"Yes","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","reserved for S7 basic communication":"8","Number of GD packets, receiver, max.":"4","Potential separation digital outputs":"Yes","For Signal \"0\" Residual Current, Max.":"0.5 mA","adjustable for OP communication, max.":"11","adjustable for PG communication, max.":"11","Between The Channels And Backplane Bus":"Yes","Current, relative to input range, (+/-)":"0.7 %","Number of GD packets, transmitter, max.":"4","Voltage, relative to input range, (+/-)":"0.7 %","Current, relative to output range, (+/-)":"0.7 %","Voltage, relative to output range, (+/-)":"0.7 %","Limitation of inductive shutdown voltage to":"L+ (-48 V)","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"8","For resistance/resistance thermometer measurement":"1","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA","Number of login stations for message functions, max.":"7","Resolution with overrange (bit including sign), max.":"12 bit","Resistance thermometer, relative to input range, (+/-)":"3 %","for signal \"1\" permissible range for 0 to 60 °C, max.":"500 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$725.75","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=456237&mlfb=6ES7314-6BF00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7314-6BF00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the working memory size of 6ES7314-6BF00-0AB0?","answer":"The integrated work memory is 48 kbyte, shared between program and data. No external memory card is required for standard operation."},{"question":"Does 6ES7314-6BF00-0AB0 require a memory card?","answer":"No — the 48 kbyte of integrated memory is sufficient for program and data storage. A Micro Memory Card can be used for firmware updates or program transport but is not mandatory."},{"question":"Where can I buy Siemens 6ES7314-6BF00-0AB0?","answer":"This CPU is sourced to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7314-6BF00-0AB0","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/6ES7314-6BF00-0AB0 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}}