操作员可从信号顺序记录中获知事件发生的先后顺序,分辩率1毫
秒
生产报表记录
生产报表记录是指在–定的时间间隔内或在某种情况下,记录下过程变量的当前值或状态。该记
录可周期性运行(如班报、日报、月报等),也可手动启停或由事件驱动启停。
事故迫忆记录
事故追忆记录用于检查分析事故的详细过渡过程(脉络波形)。为实现这–目的,系统以极高的时
间分辨率(间隔最小5亳秒)采集事故发生(某开关变量状态改变)前后几分钟有关模拟变量的测量值,
并存储在操作站中。
系统诊1就亚不
系统硬、软件的当前状态由-一个在后台自动运行的系统诊断程序进行监视。
诊断显示的结果在标准化系统显示中分三个详细层次进行描述:
系统状态显示(显示包括操作站、过程站、现场控制器以及系统总线DigiNetS 和站总线
DigiNetP在内的系统结构总貌和状态)
●站状态显示(显示 某站的状态信息)
●模件状态显示(显示与所选模件有关的详细信4)。
easy, the interface is friendly, and the maintenance is simple;
2. Industria1″ system communication
Industrial” system uses international standard industrial bus. Field controller supports Profibus, FF, ModBus, Can, etc.
International standard fieldbus, Profibus is the most widely used open fieldbus international standard in the world, divided into FMS, DP and PA
Level 3, DP communication rate can be as high as 12Mb. Profibus is used to connect intelligent devices such as distributed I/0 stations and field bus instruments.
Communication between the process station, operator station and engineering station takes place via the system bus DigiNetS (Industrial Ethernet). user
Different transmission media (RJ45 twisted pair, thin, thick or fiber optic