{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7518-4JP00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7518-4JP00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7518-4JP00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7518-4JP00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-1500 CPU 1518HF, 6ES7518-4JP00-0AB0, 32 kbyte input/output process image, PROFIsafe V2.4/V2.6, MRP Automanager, -40 to 70 °C.","salesMarkdown":"## CPU 1518HF — 32 kB I/O image, PROFIsafe, MRP ring manager The Siemens 6ES7518-4JP00-0AB0 is a CPU 1518HF designed for high-availability and fail-safe applications. It supports PROFIsafe V2.4 / V2.6 for safety-oriented communication and acts as an MRP Automanager per IEC 62439-2 Edition 2.0 for media redundancy in ring topologies. The CPU provides a 32 kbyte input process image and a 32 kbyte output process image, meaning all I/O data for a typical mid-sized safety application fits within the process image without needing direct peripheral access. ## Programming languages and failsafe capability The CPU supports LAD (ladder diagram) and FBD (function block diagram) including failsafe variants, plus SCL, STL, and GRAPH for structured and sequential control. This covers both standard logic and safety-related code in the same engineering environment. Forcing is supported for standard variables but not for fail-safe variables, which is consistent with safety integrity requirements — forcing a safety output would break the SIL loop. ## Network interfaces and protocol support The CPU has a 100 Mbps Ethernet interface and a second X3 interface capable of 1000 Mbps. It supports TCP/IP, UDP, MODBUS TCP, LLDP, SNMP, and I&M data (I&M0 to I&M3). IRT and MRPD are not supported, so this CPU is not intended for isochronous motion control applications. DCP and DNS are supported for device configuration and network naming; DHCP and HTTP/HTTPS are not. This means the CPU is configured via the engineering tool (TIA Portal) using its MAC address or assigned name, not via a web browser. ## Environmental range and physical dimensions Dimensions are 210 mm wide, 147 mm high, and 129 mm deep.","metaTitle":"Siemens 6ES7518-4JP00-0AB0 CPU 1518HF, 32 kB I/O, PROFIsafe","metaDescription":"Siemens 6ES7518-4JP00-0AB0 CPU 1518HF PLC. 32 kB input/output process image, PROFIsafe V2.4/V2.6, MRP Automanager, -40 to 70 °C. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"DCP":"Yes","DNS":"Yes","FBD":"Yes; incl. failsafe","I2t":"0.4 A²·s","IRT":"No","LAD":"Yes; incl. failsafe","MRP":"Yes; MRP Automanager according to IEC 62439-2 Edition 2.0","SCL":"Yes","STL":"Yes","UDP":"Yes","DHCP":"No","HTTP":"No","LLDP":"Yes","MRPD":"No","Max.":"70 °C","Min.":"-40 °C","SNMP":"Yes","Type":"Hardware clock","Depth":"129 mm","GRAPH":"Yes","HTTPS":"No","Width":"210 mm","Height":"147 mm","Inputs":"32 kbyte; All inputs are in the process image","MODBUS":"Yes; MODBUS TCP","Number":"16","TCP/IP":"Yes","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","1000 Mbps":"Yes; Only possible at the X3 interface of the CPU 1518","ERROR LED":"Yes","MAINT LED":"Yes","PID_3Step":"Yes; PID controller with integrated optimization for valves","PROFIsafe":"Yes; V2.4 / V2.6","Supported":"Yes","Variables":"inputs/outputs, bit memories, DBs, peripheral I/Os (without fail-safe), times, counters","Adjustable":"Yes","Integrated":"1","S7 routing":"Yes","Size, max.":"16 kbyte","Web server":"No","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","Autocrossing":"Yes","Number range":"0 ... 65 535","RUN/STOP LED":"Yes","Status block":"Yes; Up to 16 simultaneously","OPC UA Client":"No","OPC UA Server":"No","UDP multicast":"Yes; 128 multicast circuits (of which max. 5 via X1)","Interface type":"Pluggable synchronization submodule (FO)","Motion Control":"No","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":"No","Inputs (volume)":"16 kbyte","Number of ports":"1","Weight, approx.":"2 116 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)":"16 kbyte","Power loss, typ.":"24 W","RJ 45 (Ethernet)":"Yes; X3","Rated value (DC)":"24 V","Data length, max.":"2 kbyte; 1 472 bytes for UDP broadcast","Integrated Switch":"No","Repeat rate, min.":"1/s","FW update possible":"Yes","Forcing, variables":"peripheral inputs/outputs (without fail-safe)","High-speed counter":"No","PROFINET IO Device":"No","Per Priority Class":"24; Up to 8 possible for F-blocks","Retentivity preset":"No","PG/OP communication":"Yes; encryption with TLS V1.3 pre-selected","on Ethernet via NTP":"Yes","HW functional status":"FS02","ISO-on-TCP (RFC1006)":"Yes","Inrush current, max.":"1.95 A; Rated value","Mode selector switch":"1","Number of IO modules":"8 192; max. number of modules / submodules","Password for display":"Yes","Screen diagonal [cm]":"6.1 cm","Integrated (For Data)":"60 Mbyte","Number of breakpoints":"20; Breakpoints are only supported in RUN-Solo status","Number of startup OBs":"100","Open IE communication":"Yes","SIL acc. to IEC 61508":"SIL 3","SIMATIC communication":"Yes; Only Server","Counting and measuring":"Yes","For Send Cycle Of 1 Ms":"1 ms to 512 ms","Modules per rack, max.":"1; CPU","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; without fail-safe","For Bit Operations, Typ.":"4 ns","Integrated (For Program)":"9 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":"4 000","Number of time alarm OBs":"20","Of Which Powerfail-Proof":"1 000","Per Priority Class, Max.":"64 kbyte; max. 16 KB per block","Current consumption, max.":"1.95 A","For Word Operations, Typ.":"6 ns","Number of delay alarm OBs":"20","Number of variables, max.":"200","Plug-in interface modules":"Synchronization module 6ES7960-1CB00-0AA5, 6ES7960-1FB00-0AA5 or 6ES7960-1FE00-0AA5","Number of S7 routing paths":"64","Number of elements (total)":"20 000; Blocks (OB, FB, FC, DB) and UDTs","Memory size per trace, max.":"512 kbyte","Number of connections, max.":"320","Number of process alarm OBs":"50","Reverse polarity protection":"Yes","S7 communication, as client":"No","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 Subscriptions, Max.":"750","Number of PROFINET interfaces":"3","Number of configurable Traces":"8","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 100 µs","Number of diagnostic alarm OBs":"1","Number of synchronous error OBs":"2","Of Which Status Variables, Max.":"200; per job","PROFINET system redundancy (R1)":"Yes","PROFINET system redundancy (S2)":"Yes","For Fixed Point Arithmetic, Typ.":"6 ns","Number of asynchronous error OBs":"4","Number of distributed IO systems":"1","Of Which Control Variables, Max.":"200; per job","Current consumption (rated value)":"1.55 A","Number of subprocess images, max.":"32","Protection level: Write protection":"Yes","For Floating Point Arithmetic, Typ.":"24 ns","Joint commission (Team Engineering)":"No","Plug-in (SIMATIC Memory Card), max.":"32 Gbyte","Switchover time on line break, typ.":"200 ms; PROFINET MRP","permissible range, lower limit (DC)":"19.2 V","permissible range, upper limit (DC)":"28.8 V","Number of stations in the ring, max.":"50","Protection level: Complete protection":"Yes","Number of connectable IO Devices, max.":"256","Number of alarms for system diagnostics":"1 000","Number of slots for SIMATIC memory card":"1","Protection level: Read/write protection":"Yes","Mains/voltage failure stored energy time":"5 ms","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","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 connections reserved for ES/HMI/web":"10","Protection Of Confidential Configuration Data":"Yes","Low demand mode: PFDavg in accordance with SIL3":"< 2.00E-05","Number of connections via integrated interfaces":"320","Protection level: Write protection for Failsafe":"Yes","Several Passive Connections Per Port, Supported":"Yes","Number of loadable program messages in RUN, max.":"5 000","Number Of Tags/Attributes For Subscriptions, Max.":"40 000","Number of login stations for message functions, max.":"64","STEP 7 TIA Portal configurable/integrated from version":"V18 (FW V3.0) / V17 (FW V2.9)","High demand/continuous mode: PFH in accordance with SIL3":"< 1.00E-09","Retentive data area (incl. timers, counters, flags), max.":"768 kbyte; In total; available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 700 KB"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=1496774&mlfb=6ES7518-4JP00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7518-4JP00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Can 6ES7518-4JP00-0AB0 be used in redundant systems?","answer":"Yes, the CPU 1518HF supports MRP (Media Redundancy Protocol) as an Automanager per IEC 62439-2, enabling ring redundancy. It is designed for high-availability applications with PROFIsafe safety communication."},{"question":"What is the difference between 6ES7518-4JP00-0AB0 and 6ES7518-4FP00-0AB0?","answer":"The 6ES7518-4JP00-0AB0 (CPU 1518HF) supports PROFIsafe V2.4/V2.6 and MRP Automanager, while the 6ES7518-4FP00-0AB0 (CPU 1518F) is a standard fail-safe CPU without the high-availability redundancy features. The HF variant is the correct choice for redundant safety applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7518-4JP00-0AB0","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/6ES7518-4JP00-0AB0 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}}