{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7314-5AE83-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7314-5AE83-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7314-5AE83-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7314-5AE83-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 CPU 314 IFM, order code 6ES7314-5AE83-0AB0, 32 KB working memory, MPI interface, FM 4 function blocks, -25 to 60 °C.","salesMarkdown":"## CPU 314 IFM — 32 KB working memory with integrated I/O The Siemens 6ES7314-5AE83-0AB0 is a SIMATIC S7-300 CPU 314 IFM with 32 KB integrated working memory, which holds roughly 10 K instructions at 3 bytes per instruction. This is the memory budget for your application code and data blocks — enough for medium-scale logic, PID loops, and motion sequences on a single controller. It supports MPI communication as a server, so it can exchange data with other S7-300 CPUs, operator panels, or a programming device over the built-in MPI port without an extra CP module. The FM 4 designation means the CPU includes four integrated function blocks for counting, positioning, or cam control — useful for handling incremental encoders or simple axis control directly on the CPU without a separate FM module. ## Memory, scan time, and programming scope Working memory is 32 KB integrated RAM, with a maximum load memory of 8 KB. Retentive data (144 bytes of bit memories, counters, timers, and data) is maintained without a battery; with a battery fitted, all blocks are retained. Cycle time is adjustable from 1 ms to 6000 ms, with a preset of 150 ms. The command set covers binary logic, bracketed operations, fixed and floating-point arithmetic, jump functions, and block calls — enough for structured programming in LAD, FBD, STL, or SCL. Nesting depth is 8 levels, and the CPU supports GRAPH sequential control and PID closed-loop control with function blocks for continuous or binary controller outputs, setpoint limitation, and auto/manual mode. ## I/O addressing and wiring The CPU addresses 122 bytes of inputs and 122 bytes of outputs. Digital inputs accept 2-wire sensors and signal thresholds of -3 to +5 V for signal '0' and +15 to +30 V for signal '1', plus analog inputs from -10 V to +10 V. Maximum shielded cable length is 1000 m. The CPU supports up to 128 digital channels and includes a 256-byte maximum number for diagnostics or data logging. Communication expansion includes one slot for a CP 342-5 PROFIBUS module, one slot for an industrial Ethernet CP or LAN module, and two slots for PtP (point-to-point) CPs — covering serial or fieldbus connectivity without overloading the backplane. ## Environmental range and physical fit Rated for -25 °C to +60 °C ambient, this CPU handles unheated enclosures or warm cabinet environments without forced cooling. The 160 mm width, 125 mm height, and 130 mm depth fit a standard S7-300 mounting rail — allow for the front connector and cable duct in your panel layout.","metaTitle":"Siemens 6ES7314-5AE83-0AB0 CPU 314 IFM, 32 KB Working Memory","metaDescription":"Siemens 6ES7314-5AE83-0AB0 CPU 314 IFM PLC with 32 KB integrated RAM, MPI communication, FM 4 function blocks. Sourced to order against RFQ. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"FM":"4","MPI":"Yes","SCL":"Yes","Max.":"60 °C","Min.":"-25 °C","Depth":"130 mm","GRAPH":"Yes","Width":"160 mm","Height":"125 mm","Inputs":"122 byte","Number":"128","Preset":"150 ms","STEP 7":"Yes; V5.0 SP1","via CP":"1; CP 342-5","CP, LAN":"1","CP, PtP":"2","Current":"Yes","Outputs":"122 byte","Voltage":"Yes","As Server":"Yes","Supported":"Yes; via loadable blocks","Adjustable":"Yes","Integrated":"32 kbyte; 32 KB/10 K instructions RAM (integrated); 1 instruction means 3 bytes on average","Size, max.":"8 kbyte","Command set":"Binary logic operations, bracketed operations, result allocation, saving, counting, loading, transferring, comparing, shifting, rotating, complementation, calling blocks, fixed point arithmetic, floating point arithmetic, jump functions","Description":"see instruction list","Lower Limit":"1 ms","Upper Limit":"6 000 ms","Number, max.":"256 byte","With Battery":"Yes; all blocks","2-Wire Sensor":"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; PID closed-loop control function blocks: Continuous controller outputs, binary controller outputs, automatic/manual mode, setpoint limitation","Shielded, Max.":"1 000 m","Of Which Static":"4","Weight, approx.":"900 g","Without Battery":"Yes; 144 bytes: Bit memories, counters, timers and data","lifecycle_stage":"eol_hot","-20 mA to +20 mA":"Yes","Of Which Dynamic":"8","Power loss, typ.":"16 W","Rated value (DC)":"24 V","S7 communication":"Yes","Unshielded, Max.":"600 m","Cable length, max.":"9 100 m; Distance between 2 neighboring nodes, max. - without repeaters: 50 m; with 2 repeaters: 1100 m; with 10 repeaters in series: 9100 m; via fiber optic cable: 23.8 km (with 16 star hubs or OLMs)","Number of counters":"2; 1 counter with 4 inputs or 2 counters with 2 inputs and 2 direction-dependent comparators for each counter; counter frequency 10 kHz; 32 bit (incl. sign)","Per Priority Class":"8","Program processing":"free cycle (OB 1), time-controlled (OB 35), clock-time controlled (OB 10), interrupt controlled (OB 40), startup (OB 100)","up to 40 °C, max.":"4 A","up to 60 °C, max.":"2 A","At \"0\" To \"1\", Max.":"50 µs","PG/OP communication":"Yes","Process diagnostics":"Yes","Software controller":"Yes; depending on the required memory space and the resulting execution time","For Signal \"1\", Min.":"L+ (-0.8 V)","For Signal \"1\", Typ.":"7 mA; Min. 2 mA","Inrush current, typ.":"8 A","Program organization":"Linear, structured","integrated RAM, max.":"48 kbyte","Frequency measurement":"Yes; 1 channel to max. 10 kHz; measurement times 0.1 s, 1 s, 10 s; meas. procedure: calculation of pulse number per meas. time","Number of nodes, max.":"32; 32 nodes on MPI bus; PG/PC, OP, additional S7-300/400, C7; per CPU max. 4 static and 4 dynamic connections","Number of startup OBs":"1; OB 100","Retentivity available":"Yes; MB 0 to MB 255","Controlled Positioning":"Yes; 1 channel; position detection via a 24 V asymmetrical incremental encoder; 3 digital inputs are occupied by the encoder (track A, track B, reference point); simple evaluation of the counting pulses (10 kHz)","Modules per rack, max.":"31","S7 basic communication":"Yes","System functions (SFC)":"Interrupt and error processing, copy data, clock functions, diagnostic functions, module parameterization, operating mode transitions","Number of analog inputs":"4","Transmission rate, max.":"187.5 kbit/s","For Bit Operations, Max.":"0.6 µs","For Bit Operations, Typ.":"0.3 µs","Number of analog outputs":"1","Number of digital inputs":"20; of which 4 channels can be used for process alarms or integrated functions","Number of free cycle OBs":"1; OB 1","Number of time alarm OBs":"1; OB 10","Short-circuit protection":"Yes; Clocked electronically","For Word Operations, Typ.":"1 µs","Global data communication":"Yes","Number of digital outputs":"16","With Inductive Load, Max.":"0.5 Hz","With Resistive Load, Max.":"100 Hz","Hardware clock (real-time)":"Yes","Number of process alarm OBs":"1; OB 40","Conversion time (per channel)":"40 µs","Address space per module, max.":"512 byte; 512 byte / 512 byte","Number of cyclic interrupt OBs":"1; OB 35","Number of expansion units, max.":"3","Of Which Retentive With Battery":"0 to 2 047 (M 0.0 to M 255.7, adjustable)","For Fixed Point Arithmetic, Typ.":"2 µs","Counting frequency (counter) max.":"10 kHz","Current consumption (rated value)":"1 000 mA","Between The Channels, In Groups Of":"1","For Timer/Counter Operations, Typ.":"12 µs","Of Which Retentive Without Battery":"0 to 1 152 (M 0.0 toM 143.7, adjustable)","For Floating Point Arithmetic, Typ.":"50 µs","For Signal \"1\" Minimum Load Current":"5 mA","Input resistance (-20 mA to +20 mA)":"105.5 kΩ","connectable programming devices/PCs":"PGs/PCs with STEP 7 connectable via MPI interface","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","Number of stations per segment, max.":"16","For Signal \"0\" Residual Current, Max.":"0.5 mA","Between The Channels And Backplane Bus":"Yes","Current, relative to input range, (+/-)":"0.9 %","Voltage, relative to input range, (+/-)":"0.9 %","Current, relative to output range, (+/-)":"0.9 %","Voltage, relative to output range, (+/-)":"0.9 %","Limitation of inductive shutdown voltage to":"30 V","User program protection/password protection":"Yes","Number of modules per DP slave interface, max.":"16","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA","Resolution with overrange (bit including sign), max.":"12 bit","for signal \"1\" permissible range for 0 to 60 °C, max.":"500 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$798.83","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=326825&mlfb=6ES7314-5AE83-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7314-5AE83-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Does 6ES7314-5AE83-0AB0 support MPI communication?","answer":"Yes, the CPU supports MPI as a server, allowing data exchange with other S7-300 CPUs, operator panels, or programming devices over the built-in MPI port."},{"question":"What is the working memory size of 6ES7314-5AE83-0AB0?","answer":"The working memory is 32 KB integrated RAM, which holds approximately 10 K instructions at 3 bytes per instruction. Maximum load memory is 8 KB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7314-5AE83-0AB0","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/6ES7314-5AE83-0AB0 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}}