{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7315-2EH13-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7315-2EH13-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7315-2EH13-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7315-2EH13-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6ES7315-2EH13-0AB0 S7-300 CPU, SFB type, with integrated PROFINET interface, FM 8, 244-byte I/O, supports CFC, FBD, LAD, SCL, STL, GRAPH, HiGraph.","salesMarkdown":"## Integrated PROFINET CPU with FM capability The Siemens 6ES7315-2EH13-0AB0 is an S7-300 CPU with an integrated PROFINET interface supporting UDP and TCP communication via loadable function blocks. It ships with FM 8 configuration — meaning this CPU can accommodate up to eight function modules in its rack. The I/O process image sits at 244 bytes each for inputs and outputs, enough for medium-sized plants without needing an external IM. Programming is handled through STEP 7 V5.4 SP2 or higher, with support for CFC, FBD, LAD, SCL, STL, GRAPH, and HiGraph — covering nearly all project styles from legacy ladder to structured text. The CPU functions as both a PROFINET client and server, and it can route communication between subnets via the backplane. No separate MPI port is fitted; the PROFINET interface serves as the primary programming and network gateway. ## I/O and configuration details This CPU supports forcing of inputs and outputs, and it holds retentive data across power cycles — though a restart is required to re-establish retentive values. The variable set includes inputs, outputs, memory bits, data blocks, timers, and counters. It does not support PROFIsafe, nor is it adjustable or expandable beyond its fixed configuration. For additional communication, up to 4 CPs for LAN, 10 CPs for Ethernet, and 8 CPs for PtP can be installed.","metaTitle":"Siemens 6ES7315-2EH13-0AB0 S7-300 CPU, PROFINET, FM 8","metaDescription":"Siemens S7-300 CPU with integrated PROFINET, FM 8 function blocks, 244-byte I/O, supports CFC, FBD, LAD, SCL, STL, GRAPH, HiGraph.","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","LAD":"Yes","MPI":"No","SCL":"Yes","STL":"Yes","UDP":"Yes; via integrated PROFINET interface and loadable FBs","DPV1":"No","Type":"SFB","Depth":"130 mm","GRAPH":"Yes","Width":"80 mm","Height":"125 mm","Inputs":"244 byte","Number":"1","Preset":"No retentivity","RS 485":"Yes","STEP 7":"Yes; V5.4 SP2 or higher","TCP/IP":"Yes; via integrated PROFINET interface and loadable FBs","via CP":"4","CP, LAN":"10","CP, PtP":"8","Forcing":"Yes","Outputs":"244 byte","Overall":"16","Present":"Yes","Routing":"Yes","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":"No","Expandable":"No","Integrated":"1","Size, max.":"2 048 byte","Web server":"Yes","Backup time":"6 wk; At 40 °C ambient temperature","Command set":"see instruction list","Granularity":"1 h","Lower Limit":"10 ms","Racks, max.":"4","SYNC/FREEZE":"Yes","Send cycles":"1 ms","Single step":"Yes","Upper Limit":"9 990 s","Equidistance":"Yes","Inputs, max.":"2 kbyte","Number, max.":"1 024; Number range: 0 to 2047","PROFINET CBA":"Yes","Status block":"Yes","in AS, slave":"Yes","to DP, slave":"Yes","Outputs, max.":"2 kbyte","Plug-in (MMC)":"Yes","Updating time":"1 to 512 ms (minimum value depends on communication share set for PROFINET I/O, on the number of I/O devices, and on the volume of configured user data)","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","Inputs, default":"128 byte","Range of values":"0 to 2^31 hours (when using SFC 101)","Weight, approx.":"460 g","Without Battery":"Yes; Program and data","lifecycle_stage":"eol_hot","Firmware version":"V2.6","Isochronous mode":"Yes; OB 61","Of Which Central":"256","Outputs, default":"128 byte","Power loss, typ.":"3.5 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","S7 communication":"Yes; With loadable FBs, max. configurable connections: 14, max. number of instances: 32","Data length, max.":"1 472 byte","PROFIBUS DP slave":"No","Address area, max.":"32; With max. 32 bytes each","Forcing, variables":"Inputs, outputs","Inputs, adjustable":"2 kbyte","PROFIBUS DP master":"No","PROFINET IO Device":"No","Per Priority Class":"8","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","Number/Number range":"0","Outputs, adjustable":"2 kbyte","PG/OP communication":"Yes","Plug-in (MMC), max.":"8 Mbyte","Programming package":"STEP 7 V5.4 SP2","on Ethernet via NTP":"Yes; As client","Acyclic Transmission":"Yes","HW functional status":"01","ISO-on-TCP (RFC1006)":"Yes; via integrated PROFINET interface and loadable FBs","Inrush current, typ.":"2.5 A","Number of breakpoints":"2","Number of connections":"16","Number of startup OBs":"1; OB 100","Open IE communication":"Yes; Via TCP/IP, ISO on TCP, and UDP","Retentivity available":"Yes; MB 0 to MB 2 047","Modules per rack, max.":"8","PROFINET IO Controller":"Yes","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","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.":"0.1 µs","Number of DPV1 alarm OBs":"3; OB 55, 56, 57","Number of GD loops, max.":"8","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 free cycle OBs":"1; OB 1","Number of time alarm OBs":"1; OB 10","Of Which Powerfail-Proof":"100","Per Priority Class, Max.":"1 024 byte; per block max. 510","Size of GD packets, max.":"22 byte","integrated channels (AI)":"0","integrated channels (AO)":"0","integrated channels (DI)":"0","integrated channels (DO)":"0","For Word Operations, Typ.":"0.2 µs","Global data communication":"No","Number of DP slaves, max.":"124","Number of delay alarm OBs":"1; OB 20","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","Number of connections, max.":"8","Number of process alarm OBs":"1; OB 40","Process diagnostic messages":"Yes","S7 communication, as client":"No","S7 communication, as server":"Yes","User data consistency, max.":"254 byte","usable for OP communication":"15","usable for PG communication":"15; max.","Retentive And Synchronizable":"Yes","System function blocks (SFB)":"see instruction list","Number of PROFINET interfaces":"1","additional within an error OB":"4","reserved for OP communication":"1","reserved for PG communication":"1","Number of cyclic interrupt OBs":"1; OB 35","Number of isochronous mode OBs":"1; OB 61","Number of expansion units, max.":"3","Number of synchronous error OBs":"2; OB 121, 122","Of Which Status Variables, Max.":"30","For Fixed Point Arithmetic, Typ.":"2 µs","Number of asynchronous error OBs":"6; OB 80, 82, 83, 85, 86, 87","Of Which Control Variables, Max.":"14","Current consumption (rated value)":"650 mA","Number of subprocess images, max.":"1","usable for S7 basic communication":"14","For Floating Point Arithmetic, Typ.":"3 µs","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","Output current of the interface, max.":"200 mA","adjustable for OP communication, max.":"15; 1 to 15","adjustable for OP communication, min.":"1","adjustable for PG communication, max.":"15; 1 to 15","adjustable for PG communication, min.":"1","Number of connectable IO Devices, max.":"128","Number of GD packets, transmitter, max.":"8","Setpoint for the CPU communication load":"50 %","Automatic Detection Of Transmission Rate":"Yes; 10/100 Mbit/s","Number of industrial Ethernet interfaces":"1","simultaneously active Alarm-S blocks, max.":"40","User program protection/password protection":"Yes","adjustable for S7 basic communication, max.":"14; 0 to 14","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.":"76 byte; 76 bytes (with X_SEND or X_RCV); 64 bytes (with X_PUT or X_GET as server)","Current consumption (in no-load operation), typ.":"100 mA","Direct data exchange (slave-to-slave communication)":"Yes","Number of login stations for message functions, max.":"16; Depending on the configured connections for PG/OP and S7 basic communication","Data management on MMC (after last programming), min.":"10 y","number of remote connection partners / with PROFINET CBA":"32","Retentive data area (incl. timers, counters, flags), max.":"128 kbyte","External Protection For Power Supply Lines (Recommendation)":"2 A min.","number of coupled PROFIBUS devices / with PROFIBUS functionality":"16"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$800.00 – $1,073.79","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=378968&mlfb=6ES7315-2EH13-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7315-2EH13-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What does FM 8 mean on this CPU?","answer":"The FM 8 value indicates the CPU supports up to eight function modules in the rack. This allows integrating additional counter, positioning, or weighing modules."},{"question":"Does the 6ES7315-2EH13-0AB0 support CFC programming?","answer":"Yes, it supports CFC (Continuous Function Chart) along with FBD, LAD, SCL, STL, GRAPH, and HiGraph."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7315-2EH13-0AB0","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/6ES7315-2EH13-0AB0 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}}