Siemens 6ES7518-4FX00-1AC0

Four-interface CPU architecture for demanding controller, network and modernization projects.

Product Summary

Siemens 6ES7518-4FX00-1AC0 is a SIMATIC S7-1500F CPU 1518F-4 PN/DP MFP Bundle designed for standard and fail-safe control tasks in the SIMATIC S7-1500F platform. Siemens specifies 9 MB working memory for the program, 60 MB for data, PROFINET IRT through a two-port switch, a second PROFINET RT interface, PROFINET basic services, and a PROFIBUS interface. The CPU delivers 1 ns bit performance and requires a SIMATIC Memory Card. This bundle also includes C/C++ Runtime and OPC UA Runtime licensing for multi-functional platform applications. Before ordering, confirm the complete article number, supplied hardware and firmware, TIA Portal project, network topology, memory card, licenses where applicable, mounting requirements and nameplate details.

Key Product Information

Four-Interface Communication Map

Verified Technical Data Summary

MFP Runtime Scope

Fail-Safe Project Focus

This CPU belongs to the S7-1500F family. Preserve the safety project, signatures, access protection, acceptance records and validated commissioning procedure when planning replacement or migration.

Integration and Replacement Workflow

1. Identify: record the complete suffix, installed hardware, firmware and label data.
2. Audit: confirm TIA Portal, licenses, memory card, controller program and configured devices.
3. Map: document every PROFINET, Ethernet and PROFIBUS connection, address and topology.
4. Commission: preserve backups, access credentials and acceptance procedures before replacement.

Applications

• Fail-safe automation with supplementary C/C++ runtime applications.
• OPC UA connectivity in safety-oriented controller architectures.
• Combined standard, safety and open-development workloads.
• PROFINET IRT networks with PROFIBUS device integration.
• Advanced S7-1500F projects requiring high processing performance.

Compatibility and Revision Notice

Confirm the complete article number and suffix, system architecture, 24 V DC supply, all four interfaces, hardware status, firmware, TIA Portal and project requirements, mounting dimensions, memory card, runtime licenses where applicable, target equipment, and original nameplate photographs. A similar CPU designation does not establish direct interchangeability.

FAQ

Request Availability and Compatibility Review

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.