Siemens 6ES7518-4UP00-0AB0 SIMATIC S7-1500TF CPU 1518TF-4 PN/DP
ManufacturerSiemensModel6ES7518-4UP00-0AB0Product TypeSIMATIC S7-1500TF fail-safe technology CPU 1518TF-4 PN/DP
01Product Identification
Siemens 6ES7518-4UP00-0AB0 is the SIMATIC S7-1500TF CPU 1518TF-4 PN/DP for high-performance technology and fail-safe automation. It combines 9 MB program work memory, 60 MB data work memory and a typical 1 ns bit-operation time with PROFINET IRT, PROFINET RT, PROFINET basic services and PROFIBUS interfaces. Selection and replacement must preserve the complete standard, safety and technology project, including motion resources, synchronized networks, PROFIsafe parameters and Memory Card.
Configuration ControlVerify the full article number, nameplate, electrical design, interfaces, software, wiring and lifecycle requirement before ordering.
02Engineering Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7518-4UP00-0AB0 |
| Product Designation | CPU 1518TF-4 PN/DP |
| Automation Platform | SIMATIC S7-1500TF |
| Program Work Memory | 9 MB |
| Data Work Memory | 60 MB |
| Load Memory | SIMATIC Memory Card, maximum 32 GB |
| Bit Processing Time, Typical | 1 ns |
| Interface 1 | PROFINET IRT with integrated 2-port switch |
| Interface 2 | PROFINET RT |
| Interface 3 | PROFINET basic services |
| Interface 4 | PROFIBUS |
| Rated Supply | 24 V DC; permissible range 19.2 to 28.8 V DC |
| Firmware / Engineering | V3.1; TIA Portal V19 for FW V3.1 |
| Operating Temperature | 0 to 60 °C horizontal; 0 to 40 °C vertical |
03Functions
Operational Functions
- Combines fail-safe control and advanced technology functions in one S7-1500TF CPU.
- Provides 9 MB program work memory and 60 MB data work memory.
- Executes typical bit operations in 1 ns.
- Offers four communication interfaces including PROFINET IRT and PROFIBUS.
- Supports isochronous operation, technology objects and fail-safe LAD/FBD engineering.
- Provides integrated diagnostics, I&M data, web-server functions and firmware updating.
Identification
- Manufacturer: Siemens
- Model: 6ES7518-4UP00-0AB0
- Product Type: SIMATIC S7-1500TF fail-safe technology CPU 1518TF-4 PN/DP
- Status: Product phase-out review
04Applications
Use Cases
- High-performance coordinated-motion machines with integrated safety functions.
- Large automation systems combining standard, motion and fail-safe application layers.
- Synchronized PROFINET IRT architectures with extensive process and technology data.
- Production systems requiring separated Ethernet services and a retained PROFIBUS network.
- Projects requiring large work memory and fast execution for complex machine sequences.
Compatibility Boundary
- Match the exact TF CPU, hardware status, firmware and supported TIA Portal / STEP 7 Safety version.
- Preserve all technology objects, axes, camming or kinematic resources actually used by the project.
- Retain the safety program, F-signature, PROFIsafe parameters and validation records.
- Verify each PROFINET interface, IRT timing, basic-services network and PROFIBUS segment.
- Use the required SIMATIC Memory Card and control all project and firmware downloads.
05Lifecycle
- Siemens records a product phase-out milestone dated 1 October 2025 for this article.
- Confirm current product availability and the verified Siemens migration path for both TF and safety functions.
- Archive the full standard, safety and technology project with firmware and Memory Card information.
- Do not select a successor only by CPU performance; safety, motion resources and interface topology must all match.
- After replacement, complete safety acceptance and validate motion, synchronized networks, diagnostics and machine behavior.
