The only connection you can make with this device is a slave connection on the OPB; click in the leftmost white bus square to establish this connection (a lowercase 's' will appear in the box).
用这个设备能实现的唯一连接就是在OPB上的从连接；请在最左侧的空总线框中单击，建立此连接(框内会出现一个小写的“s”)。
The objective of the research is to design a multifunctional and universalizable slave interface for PROFIBUS DP, so an ordinary device can be connected on this bus conveniently.
本课题旨在为PROFIBUS DP这一特定总线，设计一款通用的多功能从站接口，从而使普通的设备可方便的挂接到总线上。
In distributed measurement and control system with bus structure, master slave communication may be replaced by race communication, when real time and burst are needed.
在总线结构的分布式测控系统中，当系统实时性要求较高、突发性较强时，主从通信方式往往不能适应需要，而需要采用竞争式通信。
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