{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7511-1FK00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7511-1FK00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7511-1FK00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7511-1FK00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1500 CPU 1511-1, 6ES7511-1FK00-0AB0, PROFINET IRT, MRP, PROFIsafe, 32 kB I/O, LAD/FBD/SCL, web server, 35×147×129 mm.","salesMarkdown":"## Integrator's note The 6ES7511-1FK00-0AB0: IRT (Isochronous Real-Time) is supported, critical for synchronized drives or high-speed axis coupling. MRP redundancy can be configured with the CPU as manager or client, ring size up to 50 devices — useful when a single cable break must not take down the line. The web server is standard, serving both standard and user-defined pages; HTTPS is activated by default. ## Communication & redundancy PROFINET interface runs at 100 Mbps. DCP (Discovery and Configuration Protocol) is enabled out of the box, so TIA Portal finds the CPU automatically during commissioning. MRP redundancy manager/client support means the CPU can be part of a media-redundant ring without an external switch. For non-PROFINET networks, the four CM/CP slots allow PROFIBUS, Ethernet, or additional PROFINET adapters. S7 routing is supported, allowing communication across subnets. Modbus TCP is built in, and the CPU also handles TCP/IP, UDP, LLDP, and SNMP. No DHCP client (static addressing only per the spec).","metaTitle":"Siemens 6ES7511-1FK00-0AB0 CPU 1511-1, 35mm, PROFINET IRT","metaDescription":"Siemens S7-1500 CPU 1511-1 (6ES7511-1FK00-0AB0). PROFINET IRT, MRP, PROFIsafe. 32 kB I/O image. LAD/FBD/SCL/GRAPH incl. failsafe. Web server. DCP supported. 6 week backup. Active,","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","FBD":"Yes; incl. failsafe","IRT":"Yes","LAD":"Yes; incl. failsafe","MRP":"Yes; as MRP redundancy manager and/or MRP client; max. number of devices in the ring: 50","SCL":"Yes","STL":"Yes","UDP":"Yes","DHCP":"No","HTTP":"Yes; Standard and user-defined pages","LLDP":"Yes","SNMP":"Yes","Type":"Hardware clock","Depth":"129 mm","GRAPH":"Yes","HTTPS":"Yes; Standard and user-defined pages","Width":"35 mm","title":"6ES7511-1FK00-0AB0","Height":"147 mm","Inputs":"32 kbyte; All inputs are in the process image","MODBUS":"Yes; MODBUS TCP","Number":"8","TCP/IP":"Yes","Via CM":"4; A maximum of 4 CMs/CPs (PROFIBUS, PROFINET, Ethernet) can be inserted in total","Outputs":"32 kbyte; All outputs are in the process image","Present":"Yes","100 Mbps":"Yes","ERROR LED":"Yes","MAINT LED":"Yes","PID_3Step":"Yes; PID controller with integrated optimization for valves","PROFIsafe":"Yes","Supported":"Yes","Variables":"Inputs, outputs, memory bits, DB, times, counters","Adjustable":"Yes","Integrated":"1","S7 routing":"Yes","Size, max.":"16 kbyte","Web server":"Yes","Backup time":"6 wk; At 40 °C ambient temperature, typically","Lower Limit":"adjustable minimum cycle time","PID_Compact":"Yes; Universal PID controller with integrated optimization","PROFIenergy":"Yes","Single step":"No","Upper Limit":"adjustable maximum cycle time","description":"***Spare part*** SIMATIC S7-1500F, CPU 1511F-1 PN, Central processing unit with Work memory 225 KB for program and 1 MB for data, 1st interface, PROFINET IRT with 2-port switch, 60 ns bit performance, SIMATIC Memory Card required","Autocrossing":"Yes","Equidistance":"Yes","Number, max.":"1 999; Number range: 1 to 65535","RUN/STOP LED":"Yes","Status block":"Yes; Up to 8 simultaneously (in total across all ES clients)","in AS, slave":"Yes","Shared device":"Yes","in AS, master":"Yes","Motion Control":"Yes","Number of keys":"6","Program alarms":"Yes","Updating times":"The minimum value of the update time also depends on communication share set for PROFINET IO, on the number of IO devices, and on the quantity of configured user data","Autonegotiation":"Yes","Copy protection":"Yes","Inputs (volume)":"8 kbyte","Number of ports":"2","Weight, approx.":"430 g","lifecycle_stage":"current","Block protection":"Yes","Firmware version":"V1.8","Isochronous mode":"No","Maintenance-Free":"Yes","Media redundancy":"Yes","Outputs (volume)":"8 kbyte","Power loss, typ.":"5.7 W","RJ 45 (Ethernet)":"Yes; X1","Rated value (DC)":"24 V","Data length, max.":"1 472 byte","Integrated Switch":"Yes","Number of PtP CMs":"the number of connectable PtP CMs is only limited by the number of available slots","Forcing, variables":"Inputs, outputs","High-speed counter":"Yes","PROFINET IO Device":"Yes","Per Priority Class":"24; Up to 8 possible for F-blocks","Retentivity preset":"No","PG/OP communication":"Yes","Prioritized startup":"Yes; Max. 32 PROFINET devices","on Ethernet via NTP":"Yes","HW functional status":"FS01","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"1.9 A; Rated value","Mode selector switch":"1","Number of IO modules":"1 024; max. number of modules / submodules","Number of axes, max.":"3; Max. number of synchronous axes (requirement: there must be no other motion technology objects created)","Password for display":"Yes","Screen diagonal [cm]":"3.45 cm","Integrated (For Data)":"1 Mbyte","Number of lines, max.":"1","Number of startup OBs":"100","Open IE communication":"Yes","SIMATIC communication":"Yes","For Send Cycle Of 1 Ms":"1 ms to 512 ms","For Send Cycle Of 2 Ms":"2 ms to 512 ms","For Send Cycle Of 4 Ms":"4 ms to 512 ms","Modules per rack, max.":"32; CPU + 31 modules","Of Which In Line, Max.":"128","PROFINET IO Controller":"Yes","Retentivity adjustable":"Yes","Deviation per day, max.":"10 s; Typ.: 2 s","Number of entries, max.":"1 000","Status/control variable":"Yes","User data per job, max.":"See online help (S7 communication, user data size)","For Bit Operations, Typ.":"60 ns","Integrated (For Program)":"225 kbyte","Number of DPV1 alarm OBs":"3","Number of clock memories":"8; 8 clock memory bit, grouped into one clock memory byte","Number of free cycle OBs":"100","Number of program alarms":"300","Number of time alarm OBs":"20","Of Which Powerfail-Proof":"500","Per Priority Class, Max.":"64 kbyte; max. 16 KB per block","For Send Cycle Of 250 μS":"250 µs to 128 ms","For Send Cycle Of 500 μS":"500 µs to 256 ms","For Word Operations, Typ.":"72 ns","Number of delay alarm OBs":"20","Number of variables, max.":"200","Number of S7 routing paths":"16","Number of elements (total)":"2 000; Blocks (OB, FB, FC, DB) and UDTs","Number of connections, max.":"96; via integrated interfaces of the CPU and connected CPs / CMs","Number of process alarm OBs":"50","Reverse polarity protection":"Yes","S7 communication, as client":"Yes","S7 communication, as server":"Yes","Vertical Installation, Max.":"40 °C; Display: 40 °C, at an operating temperature of typically 40 °C, the display is switched off","Vertical Installation, Min.":"0 °C","SIMATIC memory card required":"Yes","Connection display LINK TX/RX":"Yes","Horizontal Installation, Max.":"60 °C; Display: 50 °C, at an operating temperature of typically 50 °C, the display is switched off","Horizontal Installation, Min.":"0 °C","Number of PROFINET interfaces":"1","Number of configurable Traces":"4; Up to 512 KB of data per trace are possible","Industrial Ethernet status LED":"Yes","Number of cyclic interrupt OBs":"20","Number of diagnostic alarm OBs":"1","Number of isochronous mode OBs":"1","Number of synchronous error OBs":"2","Of Which Status Variables, Max.":"200; per job","For Fixed Point Arithmetic, Typ.":"96 ns","Number of asynchronous error OBs":"4","Number of distributed IO systems":"5","Number of positioning axes, max.":"6; Max. number of positioning axes (requirement: there must be no other motion technology objects created)","Of Which Control Variables, Max.":"200; per job","Current consumption (rated value)":"0.7 A","Infeed power to the backplane bus":"10 W","Number of external encoders, max.":"6; Max. number of external encoders (requirement: there must be no other motion technology objects created)","Number of subprocess images, max.":"32","Of which IO devices with IRT, max.":"64","Protection level: Write protection":"Yes","For Floating Point Arithmetic, Typ.":"384 ns","Joint commission (Team Engineering)":"Yes; Parallel online access possible for up to 3 engineering systems","Number of IO Devices per tool, max.":"8","Plug-in (SIMATIC Memory Card), max.":"32 Gbyte","Switchover time on line break, typ.":"200 ms","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Number of stations in the ring, max.":"50","Number of speed-controlled axes, max.":"6; Max. number of speed-controlled axes (requirement: there must be no other motion technology objects created)","Protection level: Complete protection":"Yes","Number of connectable IO Devices, max.":"128; In total, up to 256 distributed I/O devices can be connected via PROFIBUS or PROFINET","Number of alarms for system diagnostics":"100","Protection level: Read/write protection":"Yes","Mains/voltage failure stored energy time":"5 ms","Number of technology synchronous alarm OBs":"2","User program protection/password protection":"Yes","Number of configurable program messages, max.":"5 000","Number of connectable IO Devices for RT, max.":"128","Number of connections reserved for ES/HMI/web":"10","Number of alarms for motion technology objects":"80","Number of connections via integrated interfaces":"64","Several Passive Connections Per Port, Supported":"Yes","Number of IO Controllers with shared device, max.":"4","With IRT and parameterization of \"odd\" send cycles":"Update time = set \"odd\" send clock (any multiple of 125 µs: 375 µs, 625 µs ... 3 875 µs)","Power consumption from the backplane bus (balanced)":"5.5 W","Number of login stations for message functions, max.":"32","STEP 7 TIA Portal configurable/integrated from version":"V13 SP1 Update 4","Retentive data area (incl. timers, counters, flags), max.":"128 kbyte; In total; available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 88 KB","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,783.08","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce9ac6d45726561f85da09d9c983a054.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=552920&mlfb=6ES7511-1FK00-0AB0"},"ai":{"faq":[{"question":"What FBD (Function Block Diagram) capability does this CPU have?","answer":"FBD is supported and includes failsafe logic (F-FBD), enabling safety-related programming in the same environment as standard control."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7511-1FK00-0AB0","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/6ES7511-1FK00-0AB0 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}}