{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7515-2UN03-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7515-2UN03-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7515-2UN03-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7515-2UN03-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1500 CPU 1515-2 PN, order code 6ES7515-2UN03-0AB0, fail-safe capable PROFINET controller with MRP, -40 to 70 °C, 32 kbyte I/O process image.","salesMarkdown":"## Controller backbone for high-speed lines The 6ES7515-2UN03-0AB0 is a fail-safe capable PROFINET CPU with 32 kbyte each of input and output process image. ## Network resilience that matters PROFINET runs at full 100 Mbps with MRP Automanager support (IEC 62439-2 Edition 2.0), so if a switch or cable fails mid-shift, the CPU stays online — no production stop to ring an integrator. DCP and DNS are both enabled, which simplifies initial IP assignment and device discovery on a mixed-vendor line. The failsafe logic is programmed in FBD or LAD, both with failsafe instructions built in, and PROFIsafe is supported for safety-related I/O. ## Mounting dimensions and sourcing At 70 mm wide, 147 mm high, and 129 mm deep, the CPU fits DIN-rail mounting with hardware clock, up to 8 CPs/CMs via backplane. IRT unsupported; for isochronous motion see 6ES7515-2TN03-0AB0. Sourced to order; RFQ for BOM.","metaTitle":"Siemens 6ES7515-2UN03-0AB0 CPU 1515-2 PN, -40-70°C, fail-saf","metaDescription":"S7-1500 CPU with PROFINET, MRP, 32 kB I/O, fail-safe capable, -40 to 70°C. Rated 100 Mbps, DCP/DNS. Sourced to order against 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":"0.6 A²·s","IRT":"No","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":"70 mm","title":"6ES7515-2UN03-0AB0","Height":"147 mm","Inputs":"32 kbyte; All inputs are in the process image","MODBUS":"Yes; MODBUS TCP","Number":"16","TCP/IP":"Yes","Via CM":"8; A maximum of 8 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","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":"2","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 S7-1500T, CPU 1515TF-2 PN, central processing unit with 1.5 MB work memory for program and 4.5 MB for data, 1st interface: PROFINET IRT with 2-port switch, 2nd interface: PROFINET RT, 6 ns bit performance, SIMATIC Memory Card required * *** approvals and certificates according to entry 109816881 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. 118 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":"1","STOP ACTIVE LED":"Yes","Weight, approx.":"456 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.":"7.9 W","RJ 45 (Ethernet)":"Yes; X2","Rated value (DC)":"24 V","Data length, max.":"2 kbyte; 1 472 bytes for UDP broadcast","H-Sync forwarding":"Yes","Integrated Switch":"No","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":"No","User authentication":"\"anonymous\" or by user name & password","on Ethernet via NTP":"Yes","Direct data exchange":"No","HW functional status":"FS01","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"1.15 A; Rated value","Number of IO modules":"8 192; max. number of modules / submodules","Password for display":"Yes","Per External Encoder":"80","Per Positioning Axis":"80","Per Synchronous Axis":"160","Screen diagonal [cm]":"6.1 cm","Alarms and Conditions":"Yes","Integrated (For Data)":"4.5 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.":"32","PROFINET IO Controller":"Yes","Per leading axis proxy":"3","Retentivity adjustable":"Yes","Asset management record":"Yes; per user program","Deviation per day, max.":"10 s; Typ.: 2 s","Number of entries, max.":"3 200","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.":"6 ns","Integrated (For Program)":"1.5 Mbyte","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":"1 000","Number of sessions, max.":"48","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; \"Medium\" license required","Current consumption, max.":"1.03 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.":"7 ns","Number of delay alarm OBs":"20","Number of variables, max.":"200","Per Speed-Controlled Axis":"40","Publishing interval, min.":"100 ms","Application authentication":"Yes","For Each Set Of Kinematics":"30","Number of S7 routing paths":"16","Number of elements (total)":"8 000; Blocks (OB, FB, FC, DB) and UDTs","Number of connections, max.":"10","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":"2","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.":"50","Number of synchronous error OBs":"2","Of Which Status Variables, Max.":"200; per job","For Fixed Point Arithmetic, Typ.":"9 ns","Number of asynchronous error OBs":"4","Number of distributed IO systems":"64; 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)":"0.83 A","Infeed power to the backplane bus":"12 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.":"20 000","Of which IO devices with IRT, max.":"64","Protection level: Write protection":"Yes","For Floating Point Arithmetic, Typ.":"37 ns","Joint commission (Team Engineering)":"Yes; Parallel online access possible for up to 8 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.":"100 000","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.":"32; In total, up to 1 000 distributed I/O devices can be connected via AS-i, PROFIBUS or PROFINET","Per Cam (1 000 Points And 50 Segments)":"2","Number of alarms for system diagnostics":"200","Number of slots for SIMATIC memory card":"1","Per Cam (10 000 Points And 50 Segments)":"20","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.":"10 000; Program messages are generated by the \"Program_Alarm\" block, ProDiag or GRAPH","Number of connectable IO Devices for RT, max.":"32","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":"128","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.":"5 000","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)":"6.2 W","Number of login stations for message functions, max.":"64","STEP 7 TIA Portal configurable/integrated from version":"V18 (FW V3.0); with older TIA Portal versions configurable as 6ES7515-2UM01-0AB0","High demand/continuous mode: PFH in accordance with SIL3":"< 1.00E-09","Number of nodes for user-defined server interfaces, max.":"30 000","Retentive data area (incl. timers, counters, flags), max.":"512 kbyte; In total; available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 472 KB","Number of nodes of the client interfaces, recommended max.":"2 000","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.":"4.5 Mbyte; When using PS 6 0W 24/48/60 V DC HF","Number of available Motion Control resources for technology objects":"2 400","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)":"20","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8; in total across all interfaces","Number of available Extended Motion Control resources for technology objects":"120","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":null,"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=1647429&mlfb=6ES7515-2UN03-0AB0"},"ai":{"faq":[{"question":"Does the 6ES7515-2UN03-0AB0 support DCP?","answer":"Yes, DCP is listed as supported on this CPU, which allows for dynamic configuration of PROFINET device names and IP addresses."},{"question":"Does the 6ES7515-2UN03-0AB0 support DNS?","answer":"Yes, DNS client is enabled, so the CPU can resolve hostnames on the plant network."},{"question":"What is the ambient temperature range for this CPU?","answer":"The CPU is rated for -40 °C minimum to 70 °C maximum operating temperature, suitable for harsh industrial environments."},{"question":"Does this CPU support IRT?","answer":"No, IRT is not supported on this variant. For isochronous real-time motion control, see the 6ES7515-2TN03-0AB0."},{"question":"How much I/O process image does it have?","answer":"It provides 32 kbyte for inputs and 32 kbyte for outputs, all in the process image."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7515-2UN03-0AB0","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/6ES7515-2UN03-0AB0 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}}