MVME6100-0163工控备件
请注意，滚动的效果并不总是可逆的。当滚动前y轴最小值和最大值的符号不同，但滚动后相同时，刻度线的数量以及它们之间的距离可能会改变。要更改y轴的最大值或最小值，请双击趋势设置窗格中的y轴最大值或y轴最小值字段，或在“轴”子菜单中选择“y轴最大”或“y轴最小”命令，该命令可在“监视器”、“监视器设置”的上下文菜单、“数据记录器”菜单和“数据记录器设置”的菜单中找到。或显示“Y轴最大值”或“Y轴最小值”对话框，其编辑字段中显示当前值。趋势6-12 DriveWindow 2编辑或输入新的（实际）值，然后单击确定。如果要取消操作，请单击取消按钮。新值显示在趋势设置窗格中，趋势显示窗格中的y轴最大值或y轴最小值也会更新。y轴最小值和y轴最大值有限制：•y轴最大值必须大于最小值。•y轴最小值和最大值的绝对值不得超过3.40282356779733642751e+038。•如果y轴最小和最大值具有相同的符号，则其前8位有效小数位数不得相等。如果该值无效，单击“确定”按钮时将显示错误消息。您必须确认错误消息并编辑无效值或取消操作。另请参阅：通用趋势设置恢复默认设置监视器和数据记录器趋势设置窗格监视器菜单轴子菜单调整Y轴趋势驱动窗口2 6-13 2.3调整Y轴注意，如果您有多个测量通道的值相差很大，自动缩放可能比调整Y轴显示更好的结果。如果您已经在趋势显示窗格中显示了趋势，您可以让DriveWindow为您选择并设置适当的y轴最小值和最大值。请注意，设置仅涉及当前缩放级别。要让DriveWindow选择和设置y轴最小值和最大值，请选择轴子菜单中的自适应y轴命令，该命令可以在监视器、监视器设置的上下文菜单、数据记录器菜单和数据记录器设置的上下文表中找到，或按Ctrl+Shift+y。DriveWindow立即为您选择并设置适当的y轴最小值和最大值。将更新趋势显示窗格中的y轴最大值和最小值。趋势6-14 DriveWindow 2新的最小值和最大值也显示在趋势设置窗格中。如果趋势显示窗格中没有显示趋势，则该命令将被禁用（灰色）。在这种情况下，按Ctrl+Shift+Y没有效果。否则，如果DriveWindow由于某种罕见的原因无法进行选择，它会发出蜂鸣声，并且y轴的最小值和最大值不会更改。选择完成后，当前x轴定义的时间内的所有点都可见。DriveWindow使用两种选择方法：•搜索方法：搜索y轴最小值和最大值，以便y轴刻度线处的数值精确舍入。这是通常使用的方法。•快速方法：Y轴最小值和最大值仅根据当前x轴定义的时间内的最小值和最高值趋势点计算。y轴刻度线处的值没有很好地舍入。此方法仅用于监控器运行时的监控器趋势，监控间隔小于或等于2500 ms，x轴长度小于或等于12.5秒。另请参阅：通用趋势设置自动缩放监视器和数据记录器趋势设置窗格轴子菜单设置Y最小值和最大值2.4设置监视器或数据记录器通道的缩放比例可以将具有很大不同范围的值绘制到趋势显示窗格中，以便它们都可见并且仍然具有良好的分辨率。
. Note that the effect of scrolling is not always reversible. When signs of y-axis minimum and maximum differ before scrolling, but are the same after scrolling, the number of tick marks, and also the distance between two of them, may change. To change y-axis maximum or minimum, either double-click the Y Axis Maximum or Y Axis Minimum field in the trend settings pane, or select Y-Axis Maximum or Y-Axis Minimum command in the Axis submenu, which can be found in the Monitor, context menu of Monitor Settings, Datalogger menu, and context menu of Datalogger Settings. or A Y Axis Maximum or Y Axis Minimum dialog box is presented with the present value shown in its edit field. Trends 6-12 DriveWindow 2 Edit or enter a new (real) value and click OK. If you want to cancel the operation, click the Cancel button. The new value is shown in the trend settings pane, and the y-axis maximum or y-axis minimum in the trend display pane is updated, too. There are restrictions about the y-axis minimum and y-axis maximum: • Y-axis maximum must be greater than minimum. • Absolute value of y-axis minimum and maximum must not exceed 3.40282356779733642751e+038. • If y-axis minimum and maximum have same signs, their first 8 significant decimal digits must not be equal. If the value is invalid, an error message is displayed, when you click the OK button. You have to acknowledge the error message and edit the invalid value or cancel the operation. See Also: Common Trend Settings Restoring Default Settings Monitor and Dataloggers Trend Settings Pane Monitor Menu Axis Submenu Adapting Y Axis Trends DriveWindow 2 6-13 2.3 Adapting Y Axis Note that if you have several measured channels that have values with vastly differing magnitudes, automatic scaling may show better results than adapting y-axis. If you already have a trend shown in the trend display pane, you can let DriveWindow to select and set proper y-axis minimum and maximum for you. Note that the settings concern only the current zooming level. To let DriveWindow to select and set y-axis minimum and maximum, either select the Adapt Y-Axis command in the Axis submenu, which can be found in the Monitor, context menu of Monitor Settings, Datalogger menu, and context menu of Datalogger Settings, or press Ctrl+Shift+Y. DriveWindow immediately selects and sets proper y-axis minimum and maximum for you. The y-axis maximum and minimum in the trend display pane are updated. Trends 6-14 DriveWindow 2 The new minimum and maximum are shown in the trend settings pane, too. If you have no trend shown in the trend display pane, the command is disabled (grayed). Pressing Ctrl+Shift+Y has no effect in this case. Otherwise, if DriveWindow, for some rare reason, is not able to do the selection, it beeps, and y-axis minimum and maximum are not changed. The selection is done so that all points within the time defined by current x-axis are visible. DriveWindow uses two selection methods: • The search method: Values for y-axis minimum and maximum are searched so that the numerical values at the tick marks of the y-axis are nicely rounded. This is the method used normally. • The quick method: Y-axis minimum and maximum are simply calculated from the minimum and maximum trend points within the time defined by current x-axis. Values at the tick marks of the y-axis are not nicely rounded. This method is used only by monitor trends while the monitor is running, the monitoring interval is less than or equal to 2500 ms, and x-axis length is less than or equal to 12.5 seconds. See Also: Common Trend Settings Automatic Scaling Monitor and Dataloggers Trend Settings Pane Axis Submenu Setting Y Minimum and Maximum 2.4 Setting Scaling Scaling of monitor or datalogger channels makes is possible to draw values with largely different ranges into the trend display pane, so that they are all visible and still have good resolution.
