{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7314-6CF01-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7314-6CF01-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7314-6CF01-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7314-6CF01-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 CPU 314, order code 6ES7314-6CF01-0AB0, FM 8 memory, CFC, FBD, LAD, SCL, STL, GRAPH, 244-byte I/O address space, retentive memory, 120 x 125 x 130 mm.","salesMarkdown":"## Memory and programming scope The 6ES7314-6CF01-0AB0 CPU carries 8 KB of FM (function block memory), which sets the ceiling for the user program size in a batch or continuous process application. That 8 KB FM limit means the program must be lean — ladder logic for a dozen analogue loops and a few dozen digital sequences fits; a full recipe manager with 50+ phases will push past it. Programming languages supported include CFC, FBD, LAD, SCL, STL, and GRAPH — the full S7-300 engineering suite except for HiGraph®. The CFC support is the key differentiator for process engineers: it lets you wire function blocks graphically without writing a line of STL, which speeds up loop tuning and batch-sequence changes on the line. ## I/O address space and retentive memory The CPU addresses 244 bytes each of inputs and outputs — enough for a mid-sized panel with a few analogue cards and a couple of digital racks. The retentive memory holds inputs, outputs, memory bits, DBs, timers, and counters across a power cycle, which is essential for a batch process where you cannot lose the phase state on a brownout. The module measures 120 mm wide, 125 mm high, and 130 mm deep — standard S7-300 single-width format.","metaTitle":"Siemens 6ES7314-6CF01-0AB0 PLC, FM 8, CFC, 244-byte I/O","metaDescription":"Siemens 6ES7314-6CF01-0AB0 PLC with 8 KB FM, CFC/FBD/LAD/SCL/STL/GRAPH support, 244-byte I/O address space, retentive memory. Sourced to order against RFQ.","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","DPV1":"No","Type":"SFB","Depth":"130 mm","GRAPH":"Yes","Width":"120 mm","Height":"125 mm","Inputs":"244 byte","Number":"1","Preset":"No retentivity","Pt 100":"Yes","RS 485":"Yes","STEP 7":"Yes; V5.1 SP2","via CP":"4","CP, LAN":"10","CP, PtP":"8","Current":"Yes","Forcing":"Yes","Outputs":"244 byte","Overall":"12","Present":"Yes","Routing":"Yes","Isolated":"Yes","0 to 10 V":"Yes","As Client":"Yes","As Server":"Yes","HiGraph®":"Yes","Retentive":"Yes","Supported":"Yes","Variables":"Inputs, outputs, memory bits, DB, times, counters","0 to +10 V":"Yes","0 to 20 mA":"Yes","Adjustable":"Yes","Expandable":"No","Integrated":"1","Resistance":"Yes","Size, max.":"16 kbyte","Backup time":"6 wk","Command set":"see instruction list","Granularity":"1 h","Lower Limit":"10 ms","Racks, max.":"4","SYNC/FREEZE":"Yes","Single step":"Yes","Upper Limit":"9 990 s","Equidistance":"Yes","Inputs, max.":"244 byte","Number, max.":"256 byte","Status block":"Yes","0 To 600 Ohms":"Yes","2-Wire Sensor":"Yes","4 mA to 20 mA":"Yes","Analog inputs":"752 to 761","Outputs, max.":"244 byte","Plug-in (MMC)":"Yes","in AS, master":"Yes","to MPI, slave":"Yes","-10 V to +10 V":"Yes","Analog outputs":"752 to 755","Digital inputs":"124.0 to 126.7","For Signal \"0\"":"-3 to +5V","For Signal \"1\"":"+15 to +30 V","Interface type":"Integrated RS 485 interface","Nesting levels":"8","PID controller":"Yes","Shielded, Max.":"100 m","to MPI, master":"Yes","Digital outputs":"124.0 to 125.7","Parameterizable":"Yes; 0.1 / 0.3 / 3 / 15 ms","Range of values":"0 to 2^31 hours (when using SFC 101)","Weight, approx.":"676 g","Without Battery":"Yes; Program and data","lifecycle_stage":"eol_hot","-20 mA to +20 mA":"Yes","Firmware version":"V2.0.0","Of Which Central":"248","Power loss, typ.":"14 W","Rated value (DC)":"24 V","S7 communication":"No","Unshielded, Max.":"600 m","PROFIBUS DP slave":"Yes","Address area, max.":"32","Cable length, max.":"50 m; without repeater","Forcing, variables":"Inputs, outputs","Number of counters":"4","PROFIBUS DP master":"Yes","Per Priority Class":"8","Retentivity preset":"MB 0 to MB 15","Usable For Routing":"4","up to 40 °C, max.":"8 A","up to 60 °C, max.":"4 A","At \"0\" To \"1\", Max.":"8 µs","Number/Number range":"0","PG/OP communication":"Yes","Plug-in (MMC), max.":"8 Mbyte","Programming package":"STEP 7 V5.2 SP1 or higher (with STEP 7 V5.1 SP3 or higher, please use predecessor CPU)","For Signal \"1\", Min.":"L+ (-0.8 V)","For Signal \"1\", Typ.":"8 mA","HW functional status":"01","Inrush current, typ.":"11 A","Frequency measurement":"Yes","Number of breakpoints":"2","Number of connections":"12","Retentivity available":"Yes; MB 0 to MB 255","Controlled Positioning":"Yes","Modules per rack, max.":"8; In rack 3 max. 7","Resistance thermometer":"Yes","S7 basic communication":"No","System functions (SFC)":"see instruction list","Deviation per day, max.":"10 s","Limit frequency (pulse)":"2.5 kHz","Number of pulse outputs":"4","Status/control variable":"Yes","Transmission rate, max.":"12 kbit/s","User data per job, max.":"180 kbyte","For Bit Operations, Typ.":"0.1 µs","Number of GD loops, max.":"4","Number of analog outputs":"2","Number of blocks (total)":"1 024","Number of clock memories":"8","Number of digital inputs":"24","Number of time alarm OBs":"1","Per Priority Class, Max.":"510 byte","Short-circuit protection":"Yes; Clocked electronically","Size of GD packets, max.":"22 byte","integrated channels (AI)":"4+1","integrated channels (AO)":"2","integrated channels (DI)":"24","integrated channels (DO)":"16","For Word Operations, Typ.":"0.2 µs","Global data communication":"No","Input resistance (Pt 100)":"10 MΩ","Number of DP slaves, max.":"32","Number of delay alarm OBs":"1","Number of digital outputs":"16","Number of variables, max.":"10","Point-to-point connection":"No","With Inductive Load, Max.":"0.5 Hz","With Resistive Load, Max.":"100 Hz","Automatic Baud Rate Search":"Yes","Hardware clock (real-time)":"Yes","Number of GD packets, max.":"4","Number of frequency meters":"4","Number of connections, max.":"12; For PG/OP communication","Number of process alarm OBs":"1","Process diagnostic messages":"Yes","S7 communication, as client":"No","S7 communication, as server":"No","usable for OP communication":"11","usable for PG communication":"11","Input resistance (0 to 10 V)":"100 kΩ","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","Conversion time (per channel)":"1 ms","Input resistance (0 to 20 mA)":"100 Ω","additional within an error OB":"4","reserved for OP communication":"1","reserved for PG communication":"1","Number of connection resources":"12","Number of cyclic interrupt OBs":"1","For voltage/current measurement":"4","Number of expansion units, max.":"3","Of Which Status Variables, Max.":"30","For Fixed Point Arithmetic, Typ.":"2 µs","Input resistance (0 to 600 ohms)":"10 MΩ","Input resistance (4 mA to 20 mA)":"100 Ω","Of Which Control Variables, Max.":"14","User data per address area, max.":"32 byte","Counting frequency (counter) max.":"60 kHz","Current consumption (rated value)":"1 000 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.":"3 µs","For Signal \"1\" Minimum Load Current":"5 mA","Input resistance (-20 mA to +20 mA)":"100 Ω","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","Activation/deactivation of DP slaves":"Yes","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 OP communication, min.":"1","adjustable for PG communication, max.":"11","adjustable for PG communication, min.":"1","Between The Channels And Backplane Bus":"Yes","For Signal \"1\" Permissible Range, Max.":"500 mA","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 %","Resistance, relative to input range, (+/-)":"3 %","simultaneously active Alarm-S blocks, max.":"40","Limitation of inductive shutdown voltage to":"L+ (-48 V)","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"8","adjustable for S7 basic communication, min.":"0","Size of GD packet (of which consistent), max.":"22 byte","User data per job (of which consistent), max.":"64 byte","Power supply to interface (15 to 30 V DC), max.":"200 mA","Current consumption (in no-load operation), typ.":"150 mA","For resistance/resistance thermometer measurement":"1","Direct data exchange (slave-to-slave communication)":"Yes","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA","Number of login stations for message functions, max.":"12","Resolution with overrange (bit including sign), max.":"12 bit","Data management on MMC (after last programming), min.":"10 y","Technical unit for temperature measurement adjustable":"Yes; Degrees Celsius / degrees Fahrenheit / Kelvin","Resistance thermometer, relative to input range, (+/-)":"3 %","for signal \"1\" permissible range for 0 to 60 °C, max.":"500 mA","Permissible Input Current For Voltage Input (Destruction Limit), Max.":"0.5 mA; Permanent","Permissible Input Voltage For Current Input (Destruction Limit), Max.":"5 V; Permanent"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,270.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=228156&mlfb=6ES7314-6CF01-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7314-6CF01-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What are the exact specifications of 6ES7314-6CF01-0AB0 (memory, I/O, interfaces)?","answer":"The CPU has 8 KB FM memory, supports CFC, FBD, LAD, SCL, STL, and GRAPH programming, addresses 244 bytes each of inputs and outputs, and includes retentive memory for inputs, outputs, memory bits, DBs, timers, and counters. Physical dimensions are 120 x 125 x 130 mm."},{"question":"What memory card (MMC) is required for Siemens 6ES7314-6CF01-0AB0?","answer":"The evidence does not specify an MMC requirement for this CPU. The 8 KB FM is internal; if a load memory card is needed, consult the S7-300 manual for compatible MMC types."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7314-6CF01-0AB0","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/6ES7314-6CF01-0AB0 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}}