The Siemens SIMATIC S7-1500F CPU 1518F-4 PN/DP MFP is the most powerful fail-safe, multi-function performance (MFP) PLC CPU in the SIMATIC S7-1500 range. It is designed for very large, complex, and safety-critical industrial automation systems where maximum computing power, advanced motion control, and integrated safety are required.
This F-CPU combines standard control, safety functions, and high-end performance in one central controller. With extremely fast processing speed and large memory, it can handle big automation programs, synchronized motion tasks, high-speed communication, and safety logic simultaneously.
Equipped with PROFINET IRT, PROFINET RT, and PROFIBUS DP, the CPU 1518F-4 PN/DP MFP supports both cutting-edge Ethernet-based automation architectures and existing PROFIBUS networks. Fully integrated into TIA Portal, it enables efficient engineering, diagnostics, and scalable system expansion. This CPU is ideal for automotive plants, power generation, oil & gas, chemical industries, large process plants, and high-risk machinery, where performance and safety cannot be compromised.
| Parameter | Specification |
|---|---|
| Product Brand | Siemens |
| Product Series | SIMATIC S7-1500F |
| Product Type | Fail-Safe PLC CPU – MFP (F-CPU) |
| Model | CPU 1518F-4 PN/DP MFP |
| Part Number | 6ES7518-4FX00-1AC0 |
| Application | Very Large & Safety-Critical Automation Systems |
| Program Memory | 6 MB |
| Data Memory | 12 MB |
| Load Memory | SIMATIC Memory Card (required) |
| Bit Processing Time | Approx. 1 ns |
| Communication Interface 1 | PROFINET IRT (2-port switch) |
| Communication Interface 2 | PROFINET RT |
| Communication Interface 3 | PROFIBUS DP |
| Safety Function | Integrated Fail-Safe (F-CPU) |
| Multi-Function Performance (MFP) | Yes |
| Programming Software | TIA Portal |
| Supported Languages | LAD, FBD, SCL (Structured Text), SFC |
| Power Supply | 24 V DC |
| Mounting Type | DIN Rail |
| Expansion Support | S7-1500 Signal, Communication & Technology Modules |
| Typical Use | Automotive Lines, Power Plants, Process & Safety Systems |
| Condition | New & Original |
| Country of Origin | Germany |
| CPU 1511-1 PN | 300 KB | 1.5 MB | 6ES7511-1AL03-0AB0 |
| CPU 1511F-1 PN | 450 KB | 1.5 MB | 6ES7511-1FL03-0AB0 |
| CPU 1513-1 PN | 600 KB | 2.5 MB | 6ES7513-1AM03-0AB0 |
| CPU 1513F-1 PN | 900 KB | 2.5 MB | 6ES7513-1FM03-0AB0 |
| CPU 1515-2 PN | 1 MB | 4.5 MB | 6ES7515-2AN03-0AB0 |
| CPU 1515F-2 PN | 1.5 MB | 4.5 MB | 6ES7515-2FN03-0AB0 |
| CPU 1516-3 PN/DP | 2 MB | 7.5 MB | 6ES7516-3AP03-0AB0 |
| CPU 1516F-3 PN/DP | 3 MB | 7.5 MB | 6ES7516-3FP03-0AB0 |
| CPU 1517-3 PN | 4 MB | 50 MB | 6ES7517-3AQ10-0AB0 |
| CPU 1517F-3 PN/DP | 6 MB | 50 MB | 6ES7517-3FQ10-0AB0 |
| CPU 1518-3 PN | 12 MB | 150 MB | 6ES7518-3AT10-0AB0 |
| CPU 1518F-3 PN | 18 MB | 150 MB | 6ES7518-3FT10-0AB0 |
| SIPLUS S7-1500 CPU 1511-1 PN | - | - | 6AG1511-1AL03-7AB0 |
| SIPLUS S7-1500 CPU 1513-1 PN | - | - | 6AG1513-1AM03-7AB0 |
| SIPLUS S7-1500 CPU 1515F-2 PN | - | - | 6AG1515-2FN03-2AB0 |
| SIPLUS S7-1500 CPU 1516-3 PN | - | - | 6AG1516-3AP03-2AB0 |
| SIPLUS S7-1500 CPU 1516F-3 PN | - | - | 6AG1516-3FP03-2AB0 |
| SIPLUS S7-1500 CPU 1518F-4 PN/DP | - | - | 6AG1518-4FP00-4AB0 |
| CPU 1511C-1 PN | 300 KB | 1.5 MB | 6ES7511-1CL03-0AB0 |
| CPU 1512C-1 PN | 400 KB | 2 MB | 6ES7512-1CM03-0AB0 |
| CPU 1511C-1 PN | 175 KB | 1 MB | 6ES7511-1CK01-0AB0 |
| CPU 1512C-1 PN | 250 KB | 1 MB | 6ES7512-1CK01-0AB0 |
| CPU 1511T-1 PN | 450 KB | 1.5 MB | 6ES7511-1TL03-0AB0 |
| CPU 1511TF-1 PN | 450 KB | 1.5 MB | 6ES7511-1UL03-0AB0 |
| CPU 1515T-2 PN | 1.5 MB | 4.5 MB | 6ES7515-2TN03-0AB0 |
| CPU 1515TF-2 PN | 1.5 MB | 4.5 MB | 6ES7515-2UN03-0AB0 |
| CPU 1516T-3 PN | 3 MB | 25 MB | 6ES7516-3TP10-0AB0 |
| CPU 1516TF-3 PN | 3 MB | 25 MB | 6ES7516-3UP10-0AB0 |
| CPU 1517T-3 PN | 6 MB | 50 MB | 6ES7517-3TQ10-0AB0 |
| CPU 1517TF-3 PN | 6 MB | 50 MB | 6ES7517-3UQ10-0AB0 |
| CPU 1518T-3 PN | 18 MB | 150 MB | 6ES7518-3TT10-0AB0 |
| CPU 1518TF-3 PN | 18 MB | 150 MB | 6ES7518-3UT10-0AB0 |
| CPU 1513R-1 PN | 600 KB | 2.5 MB | 6ES7513-1RM03-0AB0 |
| CPU 1515R-2 PN | 1 MB | 4.5 MB | 6ES7515-2RN03-0AB0 |
| CPU 1517H-3 PN | 2 MB | 8 MB | 6ES7517-3HP00-0AB0 |
| CPU 1517H-4 PN | 4 MB | 50 MB | 6ES7517-4HQ10-0AB0 |
| CPU 1518HF-4 PN | 9 MB | 60 MB | 6ES7518-4JP00-0AB0 |
| CPU 1518HF-4 PN | 18 MB | 150 MB | 6ES7518-4JT10-0AB0 |
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