DigiVis软件有如下特性:
系统信息的层次化分布使操作清楚迅速
变量的直接快速搜索
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采用统一信息概念、清晰的信息显示和操作员提示
DigiVis图形显示种类包括自由图形显示(工艺流程等)及大量标准显示，下面将 分别介绍:
自由圜形显示
自由图形显示是按照裴置工艺和操作员的专门需要进行组态的，用以表示工艺过程状态的显示画
面，工艺流程画面是典型的自由图形显示。
在自由图形中，当前的过程数据或过程状态可以数字或模拟形式进行显示(如棒图、动态填充或
趋势窗口) .画面显示中的图形符号可根据过程状态进行置换、闪烁、变色以及位置变化，即进行动
态显示。所选择的过程变量可通过流程画面中的面板或通过标准分组画面进行显示操作。
如果组态了画面调用热区或调用按钮，则可在自由画面中设置指定的画面调用体系，它确定彼此
之间的调用关系，便于用户监视操作。
mode) or satellite.
PLC and other subsystems communicate with industrial “system through Modbus protocol interface. The system also supports iec870-5 over control coordination
Discussion.
The flash EPROM inside PS provides more than 220 function modules (control algorithm subroutines), in addition to the base specified in IEC 61131 3 standard
In addition to this content, many powerful and strictly tested function blocks from practical engineering applications are also expanded. Any complex control
All schemes can be realized by the combination of these function blocks.
The function blocks provided by the system mainly fall into the following categories:
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Analog quantity processing
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Digital quantity processing
Loop adjustment
Logical sequence control
c
Logical operation
Monitoring function
Acquisition function
c
Arithmetic operation
c
Tcp/ip protocol communication interface
Modbus protocol communication interface
1ec870-5 protocol communication interface (telecontrol)
4.2 field controller PS
Industrial ial “field controller PS is a special process control station, which is embedded with a
