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基金会现场总线 (FF)使用轮叫探询协议支持其实时通信,并在该协议中采用了隐含地址方式。论文将冗余地址方式引入该协议,从执行时间、抖动和鲁棒性三个方面分析冗余引入前后网络的通信效果。结果显示,隐含地址方式的效率略高、抖动较大、鲁棒性小。在可靠性较差的网络中,采用冗余地址方式更理想。
FOUNDATION Fieldbus (FF) supports its real-time communication using the round robin discovery protocol, which implies an implied address. The paper introduces the redundant address mode into the protocol, and analyzes the communication effects of the network before and after redundancy introduction from three aspects: execution time, jitter and robustness. The results show that the implied address mode is slightly more efficient, more jitter, and less robust. In the less reliable network, the use of redundant address mode is more ideal.