The principle of users programming for field communication protocol and the development of the software for graphics-oriented programming interface are described.
本文论述了现场通信协议用户可编程的原理，以及面向图形的可编程界面软件的开发。
So the analysis and design for efficient security protocol is more important research problem in the field of computer communication.
因此，分析、设计安全有效的安全协议是计算机通讯领域中一个极为重要的研究课题。
By making relative communication protocol in the SCM and the same in the PC, the card can be directly used in an industrial field control system with highspeed data transmission.
通过在单片机方和PC机方制定相应的通讯协议，该卡能直接用于采用计算机技术、对要求数据传输速率比较高的工业现场控制系统中。
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