{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1314-6CH04-2AY0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1314-6CH04-2AY0","canonicalUrl":"https://aoctrl.com/siemens/6AG1314-6CH04-2AY0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1314-6CH04-2AY0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-300 CPU, FM 8, EN 50155, -40 to 70 °C, I2t 0.7 A²·s, isolated analog I/O, CFC/FBD/LAD/SCL/STL/GRAPH, CE.","salesMarkdown":"## Ruggedized S7-300 for Harsh Environments The 6AG1314-6CH04-2AY0: This is a Siemens S7-300 CPU with firmware version FM 8, designed for applications requiring EN 50155 railway certification and a wide ambient range of -40 to 70 °C. The isolated analog inputs handle ±10 V, 0–10 V, and ±20 mA / 0–20 mA / 4–20 mA signals with 100 Ω burden. Programming options include CFC, FBD, LAD, SCL, STL, and GRAPH. I²t rating is 0.7 A²·s, and the module supports Pt100 RTDs, RS485, and PROFIBUS GSD file integration. ## Compliance and Sourcing Notes The module carries a CE mark and is certified to EN 50155:2007, sections 4, 5, and 12, covering temperature, shock, vibration, and humidity for railway equipment. No RoHS, REACH, or UL statement appears in the spec sheet. Sourcing is on an RFQ basis – quote to order against your BOM line. ## Analog Input Wiring and Isolation Each analog channel is isolated and accepts voltage (±10 V or 0–10 V) via 100 kΩ input impedance, or current (±20 mA, 0–20 mA, 4–20 mA) via 100 Ω burden. For Pt100 RTDs, the module provides a direct connection. The RS485 port uses the same isolation barrier. When wiring, keep analog and digital cables separated in the trunking to preserve noise immunity.","metaTitle":"Siemens 6AG1314-6CH04-2AY0 CPU, FM 8, EN 50155","metaDescription":"This ruggedized S7-300 CPU (FM 8) has EN 50155 railway certification, -40 to 70°C operation, isolated analog I/O, and supports CFC/FBD/LAD/SCL/STL/GRAPH. Sourced to order.","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","I2t":"0.7 A²·s","LAD":"Yes","MPI":"No","SCL":"Yes","STL":"Yes","ATEX":"No","DPV1":"No","Max.":"70 °C","Min.":"-40 °C","Type":"SFB","Depth":"130 mm","GRAPH":"Yes","Width":"120 mm","title":"6AG1314-6CH04-2AY0","Height":"125 mm","Inputs":"244 byte","Number":"1","Preset":"10","Pt 100":"Yes","RS 485":"Yes","STEP 7":"Yes; STEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203","via CP":"4","CE mark":"Yes","CP, LAN":"10","CP, PtP":"8","Current":"Yes; ±20 mA / 100 Ω; 0 mA to 20 mA / 100 Ω; 4 mA to 20 mA / 100 Ω","Forcing":"Yes","Outputs":"244 byte","Overall":"12","Present":"Yes","Routing":"Yes; Only with active interface","Voltage":"Yes; ±10 V / 100 kΩ; 0 V to 10 V / 100 kΩ","EN 50155":"Yes; Sections 4, 5 and 12; no further agreements apply; T1, Category 1, Class A/B, EN 50155:2007","GSD file":"The latest GSD file is available on the Internet (http://www.siemens.com/profibus-gsd)","Isolated":"Yes","0 to 10 V":"Yes","As Client":"Yes; Via CP and loadable FB","As Server":"Yes","HiGraph®":"Yes","PROFIsafe":"No","Retentive":"Yes; Must be restarted at each restart","Supported":"Yes; via CP and loadable FC","Variables":"Inputs, outputs, memory bits, DB, times, counters","0 to +10 V":"Yes","0 to 20 mA":"Yes","Adjustable":"Yes; From 10 to 499","Expandable":"No","Integrated":"1","Resistance":"Yes; 0 Ω to 600 Ω / 10 MΩ","Size, max.":"256 byte","Backup time":"6 wk; At 40 °C ambient temperature","Command set":"see instruction list","Granularity":"1 h","KC approval":"Yes","Lower Limit":"48 Ω","Racks, max.":"4","Rated value":"3 ms","STEP 7 Lite":"No","SYNC/FREEZE":"Yes","Single step":"Yes","UL approval":"Yes","Upper Limit":"4 kΩ","description":"***spare part*** SIPLUS S7-300 CPU 314C-2DP based on 6ES7314-6CH04-0AB0 with conformal coating, -25…+60 °C, compact CPU with MPI, 24 DI/16 DQ, 4 AI, 2 AQ, 1 Pt100, 4 high-speed counters (60 kHz), integrated DP interface, integrated power supply 24 V DC, work memory 192 KB, front connector (2x 40-pole) and Micro Memory Card required","Equidistance":"Yes","For Uprating":"No","Inputs, max.":"244 byte","Number, max.":"see instruction list","PROFINET CBA":"No","Status block":"Yes; Up to 2 simultaneously","in AS, slave":"No","to DP, slave":"Yes","0 To 600 Ohms":"Yes","2-Wire Sensor":"Yes","4 mA to 20 mA":"Yes","Analog inputs":"752 to 761","Current, max.":"50 mA; Permanent","Outputs, max.":"244 byte","Plug-in (MMC)":"Yes","in AS, master":"Yes","to DP, master":"Yes; With DP slave only slave clock","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.":"200 m","to MPI, master":"Yes","Can Be Read Out":"Yes","Digital outputs":"124.0 to 125.7","Inputs, default":"128 byte","Parameterizable":"Yes; by software","Range of values":"0 to 2^31 hours (when using SFC 101)","Weight, approx.":"680 g","Without Battery":"Yes; Program and data","lifecycle_stage":"current","-20 mA to +20 mA":"Yes","Block encryption":"Yes; With S7 block Privacy","Isochronous mode":"No","Of Which Central":"250","Outputs, default":"128 byte","Power loss, typ.":"13 W","Rated value (DC)":"24 V","S7 communication":"Yes; Only server, configured on one side","Unshielded, Max.":"600 m","PROFIBUS DP slave":"Yes","Repeat rate, min.":"1 s","Address area, max.":"32","For Inductive Load":"0.5 ms","For Resistive Load":"0.6 ms","Forcing, variables":"Inputs, outputs","Inputs, adjustable":"2 048 byte","On Lamp Load, Max.":"100 Hz","PROFIBUS DP master":"Yes","PROFINET IO Device":"No","Per Priority Class":"16","Retentivity preset":"Yes","Usable For Routing":"4; max.","up to 40 °C, max.":"2 A","up to 60 °C, max.":"2 A","At \"0\" To \"1\", Max.":"8 µs; Minimum pulse width/minimum pause between pulses at maximum counting frequency","Data record routing":"Yes","For Capacitive Load":"1 ms","Number/Number range":"0","Outputs, adjustable":"2 048 byte","PG/OP communication":"Yes","Plug-in (MMC), max.":"8 Mbyte","Programming package":"STEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203","Between The Channels":"No","For Signal \"1\", Min.":"L+ (-0.8 V)","For Signal \"1\", Typ.":"8 mA","Inrush current, typ.":"5 A","EAC (formerly Gost-R)":"Yes","Frequency measurement":"Yes","Isolation tested with":"500V AC for 1 minute","Measurement principle":"Actual value encryption (successive approximation)","Number of breakpoints":"4","Number of startup OBs":"1; OB 100","RCM (formerly C-TICK)":"Yes","Retentivity available":"Yes; MB 0 to MB 255","Controlled Positioning":"Yes","Modules per rack, max.":"8; In rack 3 max. 7","PROFINET IO Controller":"No","Resistance thermometer":"Yes; Pt 100 / 10 MΩ","Retentivity adjustable":"Yes; via non-retain property on DB","S7 basic communication":"No","System functions (SFC)":"see instruction list","Deviation per day, max.":"10 s; Typ.: 2 s","For Voltage Measurement":"Yes","Limit frequency (pulse)":"2.5 kHz","Number of analog inputs":"5","Number of entries, max.":"500","Number of pulse outputs":"4; Pulse width modulation up to 2.5 kHz (see \"Technological Functions\" Manual)","Status/control variable":"Yes","Transmission rate, max.":"12 Mbit/s","User data per job, max.":"180 kbyte; With PUT/GET","For Bit Operations, Typ.":"0.06 µs","Number of DPV1 alarm OBs":"3; OB 55, 56, 57","Number of GD loops, max.":"8","Number of analog outputs":"2","Number of blocks (total)":"1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used.","Number of clock memories":"8; 1 memory byte","Number of digital inputs":"24","Number of free cycle OBs":"1; OB 1","Number of time alarm OBs":"1; OB 10","Of Which Powerfail-Proof":"100; Only the last 100 entries are retained","Per Priority Class, Max.":"32 kbyte; Max. 2048 bytes per block","Response threshold, typ.":"1 A","Short-circuit protection":"Yes; Clocked electronically","Size of GD packets, max.":"22 byte","integrated channels (AI)":"5; 4x current/voltage, 1x resistance","integrated channels (AO)":"2","integrated channels (DI)":"24","integrated channels (DO)":"16","For Word Operations, Typ.":"0.12 µs","Global data communication":"No","Input resistance (Pt 100)":"10 MΩ","Number of DP slaves, max.":"124","Number of delay alarm OBs":"2; OB 20, 21","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; only with passive interface","For Resistance Thermometer":"Pt 100","For Signal \"1\" Rated Value":"500 mA","Hardware clock (real-time)":"Yes","Number of GD packets, max.":"8","Number of frequency meters":"4; up to 60 kHz (see \"Technological Functions\" manual)","With Current Outputs, Max.":"300 Ω","With Voltage Outputs, Min.":"1 kΩ","from load voltage L+, max.":"50 mA","Controlling a digital input":"Yes","Number of RS 422 interfaces":"0","Number of RS 485 interfaces":"2; MPI and PROFIBUS DP","Number of process alarm OBs":"1; OB 40","Of Which High-Speed Outputs":"4; Notice: You cannot connect the fast outputs of your CPU in parallel","Process diagnostic messages":"Yes","Reverse polarity protection":"No","S7 communication, as client":"No","S7 communication, as server":"Yes","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","Number of PROFINET interfaces":"0","additional within an error OB":"4","reserved for OP communication":"1","reserved for PG communication":"1","Common mode interference, min.":"40 dB","Number of cyclic interrupt OBs":"4; OB 32, 33, 34, 35","For Redundant Control Of A Load":"Yes","For voltage/current measurement":"4","Number of expansion units, max.":"3","Number of synchronous error OBs":"2; OB 121, 122","Of Which Status Variables, Max.":"30","Electrical input frequency, max.":"400 Hz","For Fixed Point Arithmetic, Typ.":"0.16 µs","Input resistance (0 to 600 ohms)":"10 MΩ","Input resistance (4 mA to 20 mA)":"100 Ω","Number of asynchronous error OBs":"5; OB 80, 82, 85, 86, 87","Of Which Control Variables, Max.":"14","User data per address area, max.":"32 byte","Current consumption (rated value)":"880 mA","Integration time, parameterizable":"Yes; 16.6 / 20 ms","Time constant of the input filter":"0.38 ms","usable for S7 basic communication":"8","Between The Channels, In Groups Of":"8","Crosstalk between the inputs, min.":"60 dB","Potential separation analog inputs":"Yes; common for analog I/O","Crosstalk between the outputs, min.":"60 dB","For Floating Point Arithmetic, Typ.":"0.59 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)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","reserved for S7 basic communication":"0","Activation/deactivation of DP slaves":"Yes","Number of GD packets, receiver, max.":"8","Potential separation digital outputs":"Yes","Voltages at the outputs towards MANA":"16 V; Permanent","Current output, no-load voltage, max.":"14 V","For Signal \"0\" Residual Current, Max.":"0.5 mA","Output current of the interface, max.":"200 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 Current Output Two-Wire Connection":"Yes","For Signal \"1\" Permissible Range, Max.":"0.6 A","For Signal \"1\" Permissible Range, Min.":"5 mA","For Voltage Output Two-Wire Connection":"Yes; Without compensation of the line resistances","Status indicator digital input (green)":"Yes","Current, relative to input range, (+/-)":"0.8 %; Linearity error ±0.06 %","For Voltage Output Four-Wire Connection":"No","Number of GD packets, transmitter, max.":"8","Number of entries readable in RUN, max.":"499","Status indicator digital output (green)":"Yes","Voltage, relative to input range, (+/-)":"0.8 %; Linearity error ±0.06 %","Behavior of the clock following POWER-ON":"Clock continues running after POWER OFF","Current, relative to output range, (+/-)":"0.8 %","Mains/voltage failure stored energy time":"5 ms","Number of industrial Ethernet interfaces":"0","Voltage output, short-circuit protection":"Yes","Voltage, relative to output range, (+/-)":"0.8 %","from load voltage L+ (without load), max.":"80 mA","Resistance, relative to input range, (+/-)":"0.8 %; Linearity error ±0.2 %","With Current Outputs, Inductive Load, Max.":"0.1 mH","simultaneously active Alarm-S blocks, max.":"300","Installation altitude above sea level, max.":"5 000 m","Limitation of inductive shutdown voltage to":"L+ (-48 V)","User program protection/password protection":"Yes","Voltage output, short-circuit current, max.":"55 mA","With Voltage Outputs, Capacitive Load, Max.":"0.1 µF","adjustable for S7 basic communication, max.":"8","adjustable for S7 basic communication, min.":"0","For Current Measurement As 2-Wire Transducer":"Yes; with external supply","For Current Measurement As 4-Wire Transducer":"Yes","Size of GD packet (of which consistent), max.":"22 byte","User data per job (of which consistent), max.":"240 byte; as server","Of The Pulse Outputs, With Resistive Load, Max.":"2.5 kHz","Current consumption (in no-load operation), typ.":"150 mA","Integrated Function Blocks (Closed-Loop Control)":"Yes; PID controller (see \"Technological Functions\" manual)","For resistance/resistance thermometer measurement":"1","Linearity error (relative to output range), (+/-)":"0.15 %","Of Which Inputs Usable For Technological Functions":"16","Temperature error (relative to input range), (+/-)":"0.006 %/K","Direct data exchange (slave-to-slave communication)":"Yes","For Resistance Measurement With Two-Wire Connection":"Yes; Without compensation of the line resistances","Permissible Quiescent Current (2-Wire Sensor), Max.":"1.5 mA","Temperature error (relative to output range), (+/-)":"0.01 %/K","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)","For Resistance Measurement With Four-Wire Connection":"No","Number of login stations for message functions, max.":"12; Depending on the configured connections for PG/OP and S7 basic communication","Resolution with overrange (bit including sign), max.":"12 bit","Data management on MMC (after last programming), min.":"10 y","For Resistance Measurement With Three-Wire Connection":"No","No-load voltage for resistance-type transmitter, typ.":"3.3 V","Technical unit for temperature measurement adjustable":"Yes; Degrees Celsius / degrees Fahrenheit / Kelvin","Resistance thermometer, relative to input range, (+/-)":"0.8 %","Behavior of the clock following expiry of backup period":"the clock continues at the time of day it had when power was switched off","Retentive data area (incl. timers, counters, flags), max.":"64 kbyte","Basic execution time of the module (all channels released)":"1 ms","External Protection For Power Supply Lines (Recommendation)":"Miniature circuit breaker, type C; min. 2 A; miniature circuit breaker type B, min. 4 A","Constant measurement current for resistance-type transmitter, typ.":"1.25 mA","Interference voltage suppression for interference frequency f1 in Hz":"50 / 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"50 mA; Permanent","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","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"30 V; Permanent","Output ripple (relative to output range, bandwidth 0 to 50 kHz), (+/-)":"0.1 %","Number of DP slaves that can be simultaneously activated/deactivated, max.":"8","Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)":"0.06 %","Repeat accuracy in steady state at 25 °C (relative to output range), (+/-)":"0.06 %","Series mode interference (peak value of interference < rated value of input range), min.":"30 dB"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6b71eccec7e2de98b3b7ef02e381d2c6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=175622&mlfb=6AG1314-6CH04-2AY0"},"ai":{"faq":[{"question":"Does this CPU support CFC programming?","answer":"Yes, CFC (Continuous Function Chart) is supported, along with FBD, LAD, SCL, STL, and GRAPH."},{"question":"What compliance documentation is available for 6AG1314-6CH04-2AY0?","answer":"The module has CE marking and EN 50155 railway certification (sections 4, 5, and 12). RoHS, REACH, and UL are not listed in the specification sheet."},{"question":"Can this CPU be used in a panel originally wired for 6ES7314-1AF10-0AB0?","answer":"Mechanically it fits the same S7-300 rail and pinout, but the 6AG1314-6CH04-2AY0 has extended temperature and railway certification. If your application needs those, it is a drop-in functional replacement; if not, the standard 6ES7314-1AF10-0AB0 may be a lower-cost alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1314-6CH04-2AY0","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/6AG1314-6CH04-2AY0 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}}