如何
刷新趋势图
您可以手动刷新趋势图以查看最新的记录。如果实时更新已禁用或如果趋势图显示现场控制器趋势日志，则趋势图不会自动更新。
Trend charts are a way to graphically present trend logs. A trend chart can contain one or more trend logs that are represented in the trend chart by lines or bars.
您还可以在趋势图中添加和移除趋势日志。这便于比较不同的趋势日志，例如相对于平均温度的能量消耗。
WorkStation 中的趋势图导航
The trend chart contains a lot of tools for easy navigation in the chart. You can scroll or use the predefined settings to focus on the time span you want to see.
有关更多信息，请参阅 WorkStation 中的趋势图导航 .
WebStation 中的趋势图导航
The trend chart contains a lot of tools for easy navigation in the chart. You can scroll or use the predefined settings to focus on the time span you want to see.
有关更多信息，请参阅 WebStation 中的趋势图导航 .
WorkStation 中的趋势图系列
You can display the trend logs as trend log series in a trend chart in a number of ways. For example, you can change the color and weight of the trend log line, or display markers at the time where the trend log value was sampled.
有关更多信息，请参阅 WorkStation 中的趋势图系列 .
WebStation 中的趋势图系列
You can display the trend logs as trend log series in a trend chart in a number of ways. For example, you can change the color and weight of the trend log line, or display markers at the time where the trend log value was sampled.
有关更多信息，请参阅 WebStation 中的趋势图系列 .
WebStation 中的趋势图轴
A trend chart displays the records of a trend log or an extended trend log as a series.
有关更多信息，请参阅 趋势图 .
在 WorkStation 的 系统树 窗格，选择想要刷新的趋势图。
在主工具栏中，点击 刷新 按钮
。action_zoom_plus_stroke 
趋势图现在会刷新并为最新状态。
趋势日志运作方式
趋势图运作方式
打开趋势图
创建趋势日志列表
通过实时值更新趋势图