{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1518-4AP00-4AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1518-4AP00-4AB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1518-4AP00-4AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1518-4AP00-4AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1518-4AP00-4AB0 SIPLUS S7-1500 CPU, -40 to 70 °C, MRP redundancy manager, 32 kB process image.","salesMarkdown":"It runs as an MRP redundancy manager on rings up to 50 nodes and supports IRT for isochronous motion control. Process image holds 32 kbyte each for inputs and outputs, and you can plug up to 8 communication modules (PROFIBUS, PROFINET, Ethernet) into the rack. This CPU does not bring PROFIsafe onboard; safety functions need a separate F-CPU.","metaTitle":"Siemens 6AG1518-4AP00-4AB0 SIPLUS S7-1500, -40..70°C","metaDescription":"Siemens 6AG1518-4AP00-4AB0 SIPLUS S7-1500 CPU with -40 to 70°C range, MRP redundancy manager, MODBUS TCP, 32 kB process image. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","FBD":"Yes","I2t":"0.45 A²·s","IRT":"Yes","LAD":"Yes","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","Max.":"70 °C","Min.":"-40 °C","SNMP":"Yes","Type":"Hardware clock","Depth":"129 mm","GRAPH":"Yes","HTTPS":"Yes; Standard and user-defined pages","Width":"175 mm","Height":"147 mm","Inputs":"32 kbyte; All inputs are in the process image","MODBUS":"Yes; MODBUS TCP","Number":"8","RS 485":"Yes","TCP/IP":"Yes","Via CM":"8; A maximum of 8 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":"No","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","Autocrossing":"Yes","Equidistance":"Yes","Number, max.":"9 999; Number range: 1 to 65535","RUN/STOP LED":"Yes","Status block":"Yes; Up to 16 simultaneously","in AS, slave":"Yes","Shared device":"Yes","in AS, master":"Yes","to DP, 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":"1","Weight, approx.":"1 988 g","lifecycle_stage":"current","Block protection":"Yes","Isochronous mode":"Yes","Maintenance-Free":"Yes","Media redundancy":"Yes","Outputs (volume)":"8 kbyte","Power loss, typ.":"24 W","RJ 45 (Ethernet)":"Yes","Rated value (DC)":"24 V","Data length, max.":"1 472 byte","Integrated Switch":"No","Number of PtP CMs":"the number of connectable PtP CMs is only limited by the number of available slots","PROFIBUS DP slave":"No","Forcing, variables":"Inputs, outputs","High-speed counter":"Yes","PROFIBUS DP master":"Yes","PROFINET IO Device":"No","Per Priority Class":"24","Retentivity preset":"No","PG/OP communication":"Yes","Prioritized startup":"Yes; Max. 32 PROFINET devices","on Ethernet via NTP":"Yes","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"2.4 A; Rated value","Mode selector switch":"1","Number of IO modules":"8 192","Password for display":"Yes","Screen diagonal [cm]":"6.1 cm","Integrated (For Data)":"20 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.":"256","PROFINET IO Controller":"No","Retentivity adjustable":"Yes","Deviation per day, max.":"10 s; Typ.: 2 s","Number of entries, max.":"3 200","Status/control variable":"Yes","Transmission rate, max.":"12 Mbit/s","User data per job, max.":"See online help (S7 communication, user data size)","For Bit Operations, Typ.":"1 ns","Integrated (For Program)":"4 Mbyte","Number of DPV1 alarm OBs":"3","Number of blocks (total)":"10 000","Number of clock memories":"8; 8 clock memory bit, grouped into one clock memory byte","Number of free cycle OBs":"100","Number of time alarm OBs":"20","Of Which Powerfail-Proof":"1 000","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.":"2 ns","Number of DP slaves, max.":"125; In total, up to 1 000 distributed I/O devices can be connected via PROFIBUS or PROFINET","Number of delay alarm OBs":"20","Number of variables, max.":"200","Number of S7 routing paths":"64; in total, only 16 S7-Routing connections are supported via PROFIBUS","Number of connections, max.":"384; 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; = Tmin","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; = Tmin (incl. condensation/frost)","Number of PROFIBUS interfaces":"1","Number of PROFINET interfaces":"3","Number of configurable Traces":"8","Industrial Ethernet status LED":"Yes","Number of cyclic interrupt OBs":"20","Number of diagnostic alarm OBs":"1","Number of isochronous mode OBs":"2","Number of synchronous error OBs":"2","Of Which Status Variables, Max.":"200; per job","For Fixed Point Arithmetic, Typ.":"2 ns","Number of asynchronous error OBs":"4","Number of distributed IO systems":"10","Number of positioning axes, max.":"128; Up to 128 axes in total (speed-controlled, positioning axis, external encoders) are supported","Of Which Control Variables, Max.":"200; per job","Current consumption (rated value)":"1.55 A","Infeed power to the backplane bus":"12 W","Number of external encoders, max.":"128; Up to 128 axes in total (speed-controlled, positioning axis, external encoders) are supported","Number of subprocess images, max.":"32","Of which IO devices with IRT, max.":"64","Protection level: Write protection":"Yes","For Floating Point Arithmetic, Typ.":"6 ns","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","Activation/deactivation of DP slaves":"Yes","Number of stations in the ring, max.":"50","Number of speed-controlled axes, max.":"128; Up to 128 axes in total (speed-controlled, positioning axis, external encoders) are supported","Protection level: Complete protection":"Yes","Number of connectable IO Devices, max.":"512; In total, up to 1 000 distributed I/O devices can be connected via PROFIBUS or PROFINET","Protection level: Read/write protection":"Yes","Number of technology synchronous alarm OBs":"2","Installation altitude above sea level, max.":"5 000 m","User program protection/password protection":"Yes","Number of configurable program messages, max.":"10 000","Number of connectable IO Devices for RT, max.":"256","Number of connections reserved for ES/HMI/web":"10","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","Number of simultaneously active program alarms":"1 000","Number of connections via integrated interfaces":"192","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)":"30 W","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","STEP 7 TIA Portal configurable/integrated from version":"see entry ID: 109746275","Retentive data area (incl. timers, counters, flags), max.":"768 kbyte; Available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 700 KB","Resistant to commercially available coolants and lubricants":"Yes; Incl. diesel and oil droplets in the air","Number of IO Devices that can be simultaneously activated/deactivated, max.":"8","Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04":"Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)","Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2ed26864a4538689e263fb80d426fcbf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=129977&mlfb=6AG1518-4AP00-4AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6AG1518-4AP00-4AB0/alternatives.json"},"ai":{"faq":[{"question":"What does DCP mean on this CPU?","answer":"DCP stands for Discovery and Configuration Protocol. It's supported, so the CPU can automatically detect and assign device names and IP addresses over Ethernet without needing a separate bootstrapping tool."},{"question":"Does it support FBD programming?","answer":"Yes, Function Block Diagram (FBD) is one of the supported programming languages, along with LAD, STL, SCL, and GRAPH."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1518-4AP00-4AB0","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/6AG1518-4AP00-4AB0 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}}