{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1317-2EK14-2AY0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1317-2EK14-2AY0","canonicalUrl":"https://aoctrl.com/siemens/6AG1317-2EK14-2AY0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1317-2EK14-2AY0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-300 CPU 317-2 PN/DP, order code 6AG1317-2EK14-2AY0, 8 FM function blocks, IRT, EN 50155 railway certified, -25 to 55°C operating range.","salesMarkdown":"## Railway-rated CPU with deterministic scan budget The Siemens 6AG1317-2EK14-2AY0 is a S7-300 CPU 317-2 PN/DP variant hardened for railway rolling stock, carrying EN 50155 certification (Sections 4, 5 and 12; T1, Category 1, Class A/B per EN 50155:2007). Rated operating range is -25 °C to +55 °C (T1) with a maximum short-term peak of +60 °C — the wider thermal envelope over the standard 317-2 PN/DP (0 to 60 °C) is the main reason to spec this order code over the base 6ES7317-2EK14-0AB0. It supports 8 FM function blocks, along with LAD, FBD, STL, SCL, GRAPH, HiGraph, and CFC programming languages, plus IRT for isochronous real-time PROFINET communication. ## What does the EN 50155 rating mean for your line? EN 50155 T1 means the CPU is qualified for continuous operation at +55 °C ambient inside a sealed enclosure, with no derating required up to that ceiling. The -25 °C minimum covers cold-start in unheated wayside cabinets. The 40 mm width (one S7-300 slot) and 125 mm height fit standard DIN-rail enclosures alongside power supplies and I/O slices. Depth is 130 mm — verify clearance against the enclosure door or gland plate. Integrated PROFINET interface supports IRT (Isochronous Real-Time) for deterministic motion or high-speed I/O buses where jitter below 1 ms is non-negotiable. UDP and TCP/IP are available via the same port with loadable function blocks.","metaTitle":"Siemens 6AG1317-2EK14-2AY0 CPU 317-2 PN/DP, -25 to 55°C","metaDescription":"Siemens S7-300 CPU 317-2 PN/DP (6AG1317-2EK14-2AY0) with FM 8, IRT, and EN 50155 railway certification. Operating temp -25 to 55°C.","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":"1 A²·s","IRT":"Yes","LAD":"Yes","MPI":"No","SCL":"Yes","STL":"Yes","UDP":"Yes; via integrated PROFINET interface and loadable FBs","ATEX":"Yes","DPV1":"No","Max.":"60 °C; = Tmax; the rated temperature range of -25 ... +55 °C (T1) applies for the use on railway vehicles according to EN50155","Min.":"-25 °C; = Tmin","Type":"SFB","Depth":"130 mm","GRAPH":"Yes","Width":"40 mm","title":"6AG1317-2EK14-2AY0","Height":"125 mm","Inputs":"244 byte","Number":"4","Preset":"10","RS 485":"Yes","STEP 7":"Yes; V5.5 or higher","TCP/IP":"Yes; via integrated PROFINET interface and loadable FBs","via CP":"4","CE mark":"Yes","CP, LAN":"10","CP, PtP":"8","Forcing":"Yes","Outputs":"244 byte","Overall":"32","Present":"Yes","Routing":"Yes","EN 50155":"Yes; Sections 4, 5 and 12; no further agreements apply; T1, Category 1, Class A/B, EN 50155:2007","Isolated":"Yes","As Client":"Yes; via integrated PROFINET interface and loadable FB or 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","Adjustable":"Yes; From 10 to 499","Expandable":"No","Integrated":"1","Size, max.":"4 096 byte","Web server":"Yes","Backup time":"6 wk; At 40 °C ambient temperature","Command set":"see instruction list","Granularity":"1 h","KC approval":"Yes","Lower Limit":"10 ms","PROFIenergy":"Yes; With SFB 73 / 74 prepared for loadable PROFIenergy standard FB for I-Device","Racks, max.":"4","SYNC/FREEZE":"Yes","Send cycles":"250 μs, 500 μs,1 ms; 2 ms, 4 ms (not in the case of IRT with \"high flexibility\" option)","Single step":"Yes","UL approval":"Yes","Upper Limit":"9 990 s","description":"***spare part*** SIPLUS S7-300 CPU 317-2PN/DP based on 6ES7317-2EK14-0AB0 with conformal coating, -25…+70 °C, central processing unit with 1 MB work memory, 1st interface MPI/DP 12 Mbps, 2nd interface Ethernet PROFINET, with 2-port switch, Micro Memory Card required","Autocrossing":"Yes","Equidistance":"Yes","Inputs, max.":"1 440 byte; Per IO Controller with shared device","Number, max.":"64","PROFINET CBA":"Yes","Status block":"Yes; Up to 2 simultaneously","in AS, slave":"Yes","to DP, slave":"Yes","Outputs, max.":"1 440 byte; Per IO Controller with shared device","Plug-in (MMC)":"Yes","Shared device":"Yes","Updating time":"250 µs to 512 ms (depending on the operating mode, see Manual \"S7-300 CPU 31xC and CPU 31x, technical Data\" for more details)","in AS, master":"Yes","to DP, master":"Yes; With DP slave only slave clock","to MPI, slave":"Yes","Interface type":"PROFINET","Nesting levels":"8","to MPI, master":"Yes","Autonegotiation":"Yes","Can Be Read Out":"Yes","Inputs, default":"256 byte","Number of ports":"2","Range of values":"0 to 2^31 hours (when using SFC 101)","Weight, approx.":"340 g","Without Battery":"Yes; Program and data","lifecycle_stage":"current","Block encryption":"Yes; With S7 block Privacy","Isochronous mode":"No","Media redundancy":"Yes","Of Which Central":"256","Outputs, default":"256 byte","Power loss, typ.":"4.65 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V; A power supply according to EN 50155 shall be used","S7 communication":"Yes; with loadable FBs, max. configurable connections: 16, max. number of instances: 32","Data length, max.":"1 472 byte","Integrated Switch":"Yes","PROFIBUS DP slave":"No","Repeat rate, min.":"1 s","Address area, max.":"32","Forcing, variables":"Inputs, outputs","Inputs, adjustable":"8 192 byte","PROFIBUS DP master":"No","PROFINET IO Device":"Yes; Also simultaneously with IO Controller functionality","Per Priority Class":"16","Retentivity preset":"Yes","Usable For Routing":"X1 as MPI: max. 10; X1 as DP master: max. 24; X1 as DP slave (active): max. 14; X2 as PROFINET: 24 max.","Cyclic Transmission":"Yes","Data record routing":"Yes","Number/Number range":"0 to 3","Outputs, adjustable":"8 192 byte","PG/OP communication":"Yes","Plug-in (MMC), max.":"8 Mbyte","Prioritized startup":"Yes","Programming package":"STEP 7 V5.5 or higher","on Ethernet via NTP":"Yes; As client","Acyclic Transmission":"Yes","ISO-on-TCP (RFC1006)":"Yes; via integrated PROFINET interface and loadable FBs","Inrush current, typ.":"4 A","EAC (formerly Gost-R)":"Yes","Isolation tested with":"500V AC for 1 minute","Number of breakpoints":"4","Number of startup OBs":"1; OB 100","Open IE communication":"Yes; Via TCP/IP, ISO on TCP, and UDP","RCM (formerly C-TICK)":"Yes","Retentivity available":"Yes; From MB 0 to MB 4 095","User-defined websites":"Yes","Modules per rack, max.":"8","Number of HTTP clients":"5","Of Which In Line, Max.":"128","PROFINET IO Controller":"Yes; Also simultaneously with IO-Device functionality","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","Number of analog inputs":"0","Number of entries, max.":"500","Status/control variable":"Yes","Transmission rate, max.":"100 Mbit/s","User data per job, max.":"See online help of STEP 7 (shared parameters of the SFBs/FBs and of the SFCs/FCs of S7 Communication)","For Bit Operations, Typ.":"0.025 µs","Number of DPV1 alarm OBs":"3; OB 55, 56, 57","Number of GD loops, max.":"8","Number of analog outputs":"0","Number of blocks (total)":"2 048; (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":"0","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.":"32 768 byte; Max. 2048 bytes per block","Size of GD packets, max.":"22 byte","For Word Operations, Typ.":"0.03 µs","Global data communication":"No","Number of DP slaves, max.":"124","Number of delay alarm OBs":"2; OB 20, 21","Number of digital outputs":"0","Number of variables, max.":"10","Point-to-point connection":"No","Automatic Baud Rate Search":"Yes; only with passive interface","Hardware clock (real-time)":"Yes","Number of GD packets, max.":"8","Number of RS 422 interfaces":"0","Number of RS 485 interfaces":"1; Combined MPI / PROFIBUS DP","Number of connections, max.":"16","Number of process alarm OBs":"1; OB 40","Process diagnostic messages":"Yes","S7 communication, as client":"No","S7 communication, as server":"Yes; Connection configured on one side only","User data consistency, max.":"1 024 byte","usable for OP communication":"31","usable for PG communication":"31","usable for S7 communication":"16","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","Number of PROFINET interfaces":"1; 2 ports (switch) RJ45","User data per submodule, max.":"1 024 byte","additional within an error OB":"4","reserved for OP communication":"1","reserved for PG communication":"1","reserved for S7 communication":"0","Keep-alive function, supported":"Yes","Number of cyclic interrupt OBs":"4; OB 32, 33, 34, 35","Number of isochronous mode OBs":"1; OB 61 - isochronous mode is possible either on DP or PROFINET IO (not simultaneously)","Number of expansion units, max.":"3","Number of synchronous error OBs":"2; OB 121, 122","Of Which Status Variables, Max.":"30","Total Number Of Instances, Max.":"32","For Fixed Point Arithmetic, Typ.":"0.04 µs","Number of asynchronous error OBs":"6; OB 80, 82, 83, 85, 86, 87 (OB83 only for PROFINET IO)","Of Which Control Variables, Max.":"14","User data per address area, max.":"32 byte","Current consumption (rated value)":"750 mA","Number of subprocess images, max.":"1; With PROFINET IO, the length of the user data is limited to 1600 bytes","usable for S7 basic communication":"30","Of which IO devices with IRT, max.":"64","For Floating Point Arithmetic, Typ.":"0.16 µs","Number of IO Devices per tool, max.":"8","Switchover time on line break, typ.":"200 ms; PROFINET MRP","permissible range, lower limit (DC)":"20.4 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","Number of stations in the ring, max.":"50","Activation/deactivation of IO Devices":"Yes","Output current of the interface, max.":"200 mA","adjustable for OP communication, max.":"31","adjustable for OP communication, min.":"1","adjustable for PG communication, max.":"31","adjustable for PG communication, min.":"1","adjustable for S7 communication, max.":"16","adjustable for S7 communication, min.":"0","Device replacement without swap medium":"Yes","Number of connectable IO Devices, max.":"128","Number of GD packets, transmitter, max.":"8","Number of entries readable in RUN, max.":"499","Setpoint for the CPU communication load":"50 %","Automatic Detection Of Transmission Rate":"Yes; 10/100 Mbit/s","Behavior of the clock following POWER-ON":"Clock continues running after POWER OFF","Mains/voltage failure stored energy time":"5 ms","Number of industrial Ethernet interfaces":"1; Ethernet, 2-port switch, 2*RJ45","Data length for connection type 01H, max.":"1 460 byte","Data length for connection type 11H, max.":"32 768 byte","Local port numbers used at the system end":"0, 20, 21, 25, 80, 102, 135, 161, 8080, 34962, 34963, 34964, 65532, 65533, 65534, 65535","Change of IP address at runtime, supported":"Yes","simultaneously active Alarm-S blocks, max.":"300","Installation altitude above sea level, max.":"5 000 m","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"30","adjustable for S7 basic communication, min.":"0","Number of connectable IO Devices for RT, max.":"128","Size of GD packet (of which consistent), max.":"22 byte","User data per job (of which consistent), max.":"76 byte; 76 bytes (with X_SEND or X_RCV); 64 bytes (with X_PUT or X_GET as server)","Several Passive Connections Per Port, Supported":"Yes","Current consumption (in no-load operation), typ.":"150 mA","Number of IO Controllers with shared device, max.":"2","Direct data exchange (slave-to-slave communication)":"Yes","Number of IO devices with prioritized startup, max.":"32","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)","Number of login stations for message functions, max.":"32; Depending on the configured connections for PG/OP and S7 basic communication","Data management on MMC (after last programming), min.":"10 y","Behavior of the clock following expiry of backup period":"the clock continues at the time of day it had when power was switched off","number of remote connection partners / with PROFINET CBA":"32","Retentive data area (incl. timers, counters, flags), max.":"256 kbyte","External Protection For Power Supply Lines (Recommendation)":"2 A min.","IO Devices changing during operation (partner ports), supported":"Yes","Number of IO Devices with IRT and the option \"high flexibility\"":"128","number of coupled PROFIBUS devices / with PROFIBUS functionality":"16","Number of DP slaves that can be simultaneously activated/deactivated, max.":"8","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/069005e1051136eb266dae1980fde83c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=423256&mlfb=6AG1317-2EK14-2AY0"},"ai":{"faq":[{"question":"What is the difference between 6AG1317-2EK14-2AY0 and 6ES7317-2EK14-0AB0?","answer":"The 6AG1317-2EK14-2AY0 is the SIPLUS extreme variant rated for -25 to 55 °C with full EN 50155 railway certification (T1, Category 1, Class A/B). The standard 6ES7317-2EK14-0AB0 is rated 0 to 60 °C and lacks the railway approvals. They share the same CPU core and memory, but the 6AG variant is the one to specify for rolling stock, wayside, or any unheated enclosure application."},{"question":"Does 6AG1317-2EK14-2AY0 require a micro memory card?","answer":"Yes — like all S7-300 CPUs from this generation, the 6AG1317-2EK14-2AY0 requires a Siemens Micro Memory Card (MMC) to store the program and retain data on power loss. The CPU has no internal load memory."},{"question":"How do I get current pricing and availability for 6AG1317-2EK14-2AY0?","answer":"Submit an RFQ with your target quantity. Pricing and lead time are confirmed at quote time against the current market — no stock-holding claim is made here. The part is sourced through our independent distribution network."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1317-2EK14-2AY0","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/6AG1317-2EK14-2AY0 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}}