Architecture of CIP Safety network protocol independent on CIP network such as DeviceNet, ControlNet, EtherNet/IP and so on is given based on the function of CIP Safety network protocol, and the key technologies for communication layer protocol in CIP safety network protocol are analysis.%在阐述CIP Safety网络协议功能的基础上，给出了独立于DeviceNet、ControlNet以及EtherNet/IP等CIP网络的CIP Safety网络协议体系结构，详细地分析了CIP Safety网络协议通信层协议的关键技术。
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