{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7511-1FL03-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7511-1FL03-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7511-1FL03-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7511-1FL03-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1500 CPU 6ES7511-1FL03-0AB0, PROFIsafe V2.4/V2.6, 32 kB inputs / 32 kB outputs process image, MRP Automanager with IRT, operating temperature -40 to 70 °C, dimensions 35 × 147 × 129 mm.","salesMarkdown":"## Safety CPU with wide temperature range The 6ES7511-1FL03-0AB0: The process image is 32 kbyte each for inputs and outputs, all mapped into the I/O space. This CPU also supports DCP, DNS, DHCP, and UDP for industrial network configuration, plus a built-in web server (HTTP/HTTPS) for diagnostics and user pages. Network management is covered with SNMP, LLDP, and MRP client capability. The CPU also supports MODBUS TCP for integrating older equipment or SCADA systems. ## Diagnostics and field service Front-panel ERROR and MAINT LEDs give instant status at the cabinet. Forcing is available for non-fail-safe outputs. The CPU includes a PID temperature controller with integrated optimization and a for valve control, useful for process loops. The I²t rating of 0.5 A²·s applies to the internal fuse; observe this limit when calculating short-circuit capacity on the backplane supply.","metaTitle":"Siemens 6ES7511-1FL03-0AB0 S7-1500 CPU, PROFIsafe, -40…70°C","metaDescription":"PROFIsafe S7-1500 CPU with 32 kB I/O image each, MRP IRT, wide temperature. Sourced via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","DNS":"Yes","FBD":"Yes; incl. failsafe","I2t":"0.5 A²·s","IRT":"Yes","LAD":"Yes; incl. failsafe","MRP":"Yes; MRP Automanager according to IEC 62439-2 Edition 2.0, MRP Manager; MRP Client","SCL":"Yes","STL":"Yes","UDP":"Yes","DHCP":"Yes","HTTP":"Yes; Standard and user pages","LLDP":"Yes","MRPD":"Yes; Requirement: IRT","Max.":"70 °C","Min.":"-40 °C","SNMP":"Yes","Type":"Hardware clock","Depth":"129 mm","GRAPH":"Yes","HTTPS":"Yes; Standard and user pages","Width":"35 mm","title":"6ES7511-1FL03-0AB0","Height":"147 mm","Inputs":"32 kbyte; All inputs are in the process image","MODBUS":"Yes; MODBUS TCP","Number":"16","TCP/IP":"Yes","Via CM":"4; A maximum of 4 CMs/CPs (PROFIBUS, PROFINET, Ethernet) can be inserted in total","Forcing":"Yes; without fail-safe","Outputs":"32 kbyte; All outputs are in the process image","Present":"Yes","100 Mbps":"Yes","I&M data":"Yes; I&M0 to I&M3","PID-Temp":"Yes; PID controller with integrated optimization for temperature","ERROR LED":"Yes","MAINT LED":"Yes","PID_3Step":"Yes; PID controller with integrated optimization for valves","PROFIsafe":"Yes; V2.4 / V2.6","Per Probe":"40","Supported":"Yes","Variables":"inputs/outputs, bit memories, DBs, peripheral I/Os (without fail-safe), times, counters","Adjustable":"Yes","Encryption":"Yes; Optional","Integrated":"1","S7 routing":"Yes","Size, max.":"16 kbyte","Web server":"Yes","Backup time":"6 wk; At 40 °C ambient temperature, typically","IP protocol":"Yes; IPv4","Lower Limit":"adjustable minimum cycle time","PID_Compact":"Yes; Universal PID controller with integrated optimization","PROFIenergy":"Yes; per user program","Single step":"No","Upper Limit":"adjustable maximum cycle time","Via Dataset":"Yes","description":"SIMATIC S7-1500F, CPU 1511F-1 PN, central processing unit with work memory 450 KB for program and 1.5 MB for data, 1st interface: PROFINET IRT with 2-port switch, 25 ns bit performance, SIMATIC Memory Card required **** approvals and certificate according to entry 109815653 at support.industry.siemens.com to be observed! ****","Autocrossing":"Yes","Mode buttons":"2","Number range":"0 ... 65 535","RUN/STOP LED":"Yes","Status block":"Yes; Up to 8 simultaneously (in total across all ES clients)","in AS, slave":"Yes","OPC UA Client":"Yes; Data Access (registered Read/Write), Method Call","OPC UA Server":"Yes; Data Access (Read, Write, Subscribe), Method Call, Alarms & Condition (A&C), Custom Address Space","Per Cam Track":"160","Shared device":"Yes","UDP multicast":"Yes; max. 78 multicast circuits","in AS, master":"Yes","Motion Control":"Yes; Note: The number of technology objects affects the cycle time of the PLC program; selection guide via the TIA Selection Tool","Number of keys":"8","Per Output Cam":"20","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","STOP ACTIVE LED":"Yes","Weight, approx.":"336 g","lifecycle_stage":"current","Block protection":"Yes","Firmware version":"V3.0","Isochronous mode":"No","Maintenance-Free":"Yes","Media redundancy":"only via 1st interface (X1)","Outputs (volume)":"8 kbyte","Power loss, typ.":"7.5 W","RJ 45 (Ethernet)":"Yes; X1","Rated value (DC)":"24 V","Data length, max.":"2 kbyte; 1 472 bytes for UDP broadcast","H-Sync forwarding":"Yes","Integrated Switch":"Yes","Number of PtP CMs":"the number of connectable PtP CMs is only limited by the number of available slots","Repeat rate, min.":"1/s","Security policies":"available security policies: None, Basic128Rsa15, Basic256Rsa15, Basic256Sha256, Aes128Sha256RsaOaep, Aes256Sha256RsaPss","FW update possible":"Yes","Forcing, variables":"peripheral inputs/outputs (without fail-safe)","High-speed counter":"Yes","PROFINET IO Device":"Yes","Per Priority Class":"24; Up to 8 possible for F-blocks","Retentivity preset":"No","Data record routing":"Yes","PG/OP communication":"Yes; encryption with TLS V1.3 pre-selected","Prioritized startup":"Yes; Max. 32 PROFINET devices","User authentication":"\"anonymous\" or by user name & password","on Ethernet via NTP":"Yes","Direct data exchange":"Yes; Requirement: IRT and isochronous mode (MRPD optional)","HW functional status":"FS01","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"1.15 A; Rated value","Number of IO modules":"2 048; max. number of modules / submodules","Password for display":"Yes","Per External Encoder":"80","Per Positioning Axis":"80","Per Synchronous Axis":"160","Screen diagonal [cm]":"3.45 cm","Alarms and Conditions":"Yes","Integrated (For Data)":"1.5 Mbyte","Number of breakpoints":"8","Number of lines, max.":"1","Number of startup OBs":"100","Open IE communication":"Yes; Optionally also encrypted","SIL acc. to IEC 61508":"SIL 3","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","Asset management record":"Yes; per user program","Deviation per day, max.":"10 s; Typ.: 2 s","Number of entries, max.":"1 000","Sampling interval, min.":"100 ms","Status/control variable":"Yes; without fail-safe","User data per job, max.":"See online help (S7 communication, user data size)","For Bit Operations, Typ.":"25 ns","Integrated (For Program)":"450 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":"600","Number of sessions, max.":"32","Number of time alarm OBs":"20","Of Which Powerfail-Proof":"500","Per Priority Class, Max.":"64 kbyte; max. 16 KB per block","Runtime license required":"Yes; \"Small\" license required","Current consumption, max.":"0.9 A","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.":"32 ns","Number of delay alarm OBs":"20","Number of variables, max.":"200","Per Speed-Controlled Axis":"40","Publishing interval, min.":"200 ms","Application authentication":"Yes","Number of S7 routing paths":"16","Number of elements (total)":"4 000; Blocks (OB, FB, FC, DB) and UDTs","Number of connections, max.":"4","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.":"-30 °C; No condensation","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.":"-30 °C; No condensation","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","MRP interconnection, supported":"Yes; as MRP ring node according to IEC 62439-2 Edition 3.0","Number of cyclic interrupt OBs":"20; With minimum OB 3x cycle of 250 µs","Number of diagnostic alarm OBs":"1","Number of isochronous mode OBs":"2","Number of server methods, max.":"20","Number of synchronous error OBs":"2","Of Which Status Variables, Max.":"200; per job","For Fixed Point Arithmetic, Typ.":"42 ns","Number of asynchronous error OBs":"4","Number of distributed IO systems":"32; A distributed I/O system is characterized not only by the integration of distributed I/O via PROFINET or PROFIBUS communication modules, but also by the connection of I/O via AS-i master modules or links (e.g. IE/PB-Link)","Of Which Control Variables, Max.":"200; per job","Current consumption (rated value)":"0.73 A","Infeed power to the backplane bus":"10 W","Number of server interfaces, max.":"10 of each \"Server interfaces\" / \"Companion specification\" type and 20 of the type \"Reference namespace\"","Number of subprocess images, max.":"32","Number of registerable nodes, max.":"10 000","Of which IO devices with IRT, max.":"64","Protection level: Write protection":"Yes","For Floating Point Arithmetic, Typ.":"170 ns","Joint commission (Team Engineering)":"Yes; Parallel online access possible for up to 5 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; For MRP, bumpless for MRPD","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Number of accessible variables, max.":"50 000","Number of stations in the ring, max.":"50","activation/deactivation of I-devices":"Yes; per user program","Protection level: Complete protection":"Yes","Number of connectable IO Devices, max.":"128; In total, up to 512 distributed I/O devices can be connected via AS-i, PROFIBUS or PROFINET","Number of alarms for system diagnostics":"100","Number of slots for SIMATIC memory card":"1","Protection level: Read/write protection":"Yes","Mains/voltage failure stored energy time":"5 ms","Number of subscriptions per session, max.":"50","Number of technology synchronous alarm OBs":"2","Performance level according to ISO 13849-1":"PLe","Installation altitude above sea level, max.":"5 000 m; Restrictions for installation altitudes > 2 000 m, see manual","Number of monitored items, recommended max.":"4 000; for 1 s sampling interval and 1 s send interval","User program protection/password protection":"Yes","Number of configurable program messages, max.":"5 000; Program messages are generated by the \"Program_Alarm\" block, ProDiag or GRAPH","Number of connectable IO Devices for RT, max.":"128","Number of connections reserved for ES/HMI/web":"10","Protection Of Confidential Configuration Data":"Yes","Number of alarms for motion technology objects":"160","Low demand mode: PFDavg in accordance with SIL3":"< 2.00E-05","Number of connections via integrated interfaces":"88","Protection level: Write protection for Failsafe":"Yes","Several Passive Connections Per Port, Supported":"Yes","Number of inputs/outputs per server method, max.":"20","Number of loadable program messages in RUN, max.":"2 500","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":"V18 (FW V3.0); with older TIA Portal versions configurable as 6ES7 511-1FK02-0AB0","High demand/continuous mode: PFH in accordance with SIL3":"< 1.00E-09","Number of nodes for user-defined server interfaces, max.":"15 000","Retentive data area (incl. timers, counters, flags), max.":"256 kbyte; in total; available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 216 KB","Number of nodes of the client interfaces, recommended max.":"1 000","Number of inputs/outputs when calling OPC_UA_MethodCall, max.":"20","Number of registerable method calls of OPC_UA_MethodCall, max.":"100","Extended retentive data area (incl. timers, counters, flags), max.":"1.5 Mbyte; When using PS 6 0W 24/48/60 V DC HF","Number of available Motion Control resources for technology objects":"1 120","Number of elements for one call of OPC_UA_MethodGetHandleList, max.":"100","Number of elements for one call of OPC_UA_NameSpaceGetIndexList, max.":"20","Number of positioning axes at motion control cycle of 4 ms (typical value)":"11","Number of positioning axes at motion control cycle of 8 ms (typical value)":"14","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8; in total across all interfaces","Number of simultaneous calls of the client instructions for data access, per connection, max.":"5","Number of simultaneous calls of the client instructions for session management, per connection, max.":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$670.56 – $1,597.82","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=1647413&mlfb=6ES7511-1FL03-0AB0"},"ai":{"faq":[{"question":"What is the operating temperature range?","answer":"The CPU operates from -40 °C to 70 °C, covering a wide industrial and storage range."},{"question":"What is the I/O image size?","answer":"32 kbyte each for inputs and outputs, all mapped in the process image."},{"question":"Does it support MRP and IRT?","answer":"Yes, MRP Automanager per IEC 62439-2 Edition 2.0 and MRPD with IRT requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7511-1FL03-0AB0","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/6ES7511-1FL03-0AB0 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}}