在复杂的逻辑控制结构中这一功能特别有 用，此时操作员的快
速干预非常重要。
通口0出J
设定值曲线显示:
系统提供–种设定值时间函数功能块，它用于定义某个模拟变量在确定时间段内其值随时间的变
化过程。典型应用是将PID回路的SP(设定点)定义成一个对时间的函数而不是–般的常数。设定值变
化曲线最多可由32段直线顺序相连而成。DigiVis 上与此功能块对应的画面就是设定值曲线显示，画
面操作简单，允许的操作如切換操作方式及在线修改设定值等。在手动方式下可改变对原组态的设定
点的偏置:大小来定义手动设定值，也可随时恢复原始设定值.设定值时间函数程序可反复循环执行，
也可指定运行次数。
趋势显示和归档
模拟和数字过程变量随时间的变化过程可以趋势画面进行显示并归档存储。
users reduce
Low engineering cost?
●By using a complete engineering tool (Control Builder
F) to configure the entire control system, including automation functions
function, operator interface display and logging, and configuration of the fieldbus.
equipment (PROFIBUS, FOUNDATION Fieldbus,
HART, etc.) and device parameter settings.
● Automatic generation of global data between the process control station and the operator station
According to communication.
For field devices, process control stations and operator stations, a unified global database is used for the entire control system, thereby reducing
cost and time investment in establishing data communication and interactive access.
And ensure the consistency of data throughout the system.
●Provide system-wide unified inspection of user applications, overriding
from process control stations, operator stations to intelligent field devices, including
Including
