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PN V2.5 - Service Exchange Protocol (SXP)

June 2026

服务交换协议（SXP）通过在第2层和第3层（无论是否启用安全功能）实现安全、灵活且可扩展的通信，使PROFINET从2.5版起实现现代化升级，并为未来的工业、边缘、云和安全应用奠定了技术基础，同时保持向后兼容性。优势：可分阶段迁移至PROFINET 2.5，且不会中断现有系统的运行。

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