MVME705Bw/RFI控制器模块
默认情况下，控制项集中的项被隐藏并脱机。2.2.1当您：•断开OPC服务器时，自动释放控制。•恢复工作区。•关闭DriveWindow。•注销或关闭Windows操作系统。控制驱动器5-8 DriveWindow 2自DriveWindow版本2.11起，您必须确认自动释放控制，例如：请注意，如果您在注销或关闭Windows操作系统时取消释放控制，则注销或关闭将被取消，但可能有应用程序未为这种情况做好适当准备，并且可能在会话结束之前变得不稳定。另请参阅：控制驱动器获取和释放控制获取控制3.清除故障记录器要清除驱动器的故障记录器，取决于您是否已控制某个驱动器：•如果您已控制某一驱动器，则只能清除该驱动器的故障记录器（除非使用原始控制项）。•如果您尚未控制任何驱动器，您可以清除任何选定驱动器的故障记录器。要清除驱动器的故障记录器，请首先通过在浏览树窗格中单击该驱动器来选择该驱动器。但是，不必选择其根。选择其任何分支机构即可。然后，单击驱动器面板工具栏中的清除故障记录器按钮，或在驱动器菜单中选择清除故障记录器命令。控制驱动器驱动器窗口2 5-9清除故障记录器命令也可以在上下文菜单中找到，您可以通过在浏览树窗格中单击驱动器（或其中的子分支）获得该命令。注意，也可以使用原始控制项清除故障记录器。默认情况下，故障项集显示空故障记录器。但是，例如，如果您正在浏览的项目集中查看故障记录器，并且项目处于脱机状态，则在清除故障记录器时，项目集中不会发生任何更改。如果您没有在浏览的项目集中查看故障记录器，但您已经在一段时间之前查看过它，并且项目集属性设置为在项目集窗格中发生更改时使用缓存，则如果您选择查看，则在清除故障记录器后，所有故障记录器项目都将以质量不确定的方式显示。质量是不确定的，因为DriveOPC已经清除了其缓存中的项目，但无法确定它们是否也在驱动器中清除。控制驱动器5-10驱动器窗口2如果项目集属性设置为在项目集窗格中发生更改时使用缓存，则故障记录器项目将保持不确定状态，直到您更新它们（或使其联机）。
By default, the items in the control item set are hidden and put off-line. 2.2.1 Automatic release of control Control is automatically released when you: • Disconnect the OPC Server. • Restore a workspace. • Close DriveWindow. • Log off or shut down the Windows operating system. Controlling Drives 5-8 DriveWindow 2 Since DriveWindow version 2.11 you have to confirm the automatic releasing of control, e.g.: Note that if you cancel releasing of control when logging off or shutting down the Windows operating system, logging off or shutting down in cancelled, but there may be applications, which are not properly prepared for such a situation, and may become unstable up to the end of the session. See Also: Controlling Drives Taking and Releasing Control Take Control 3. Clearing Fault Logger To be able to clear fault logger of a drive depends on, whether you have taken control of some drive or not: • If you have taken control of a drive, you can clear the fault logger of that drive only (unless using the raw control items). • If you have not taken control of any drive, you can clear fault logger of any selected drive. To clear the fault logger of a drive, select first the drive by clicking it in the browse tree pane. It is not necessary to select its root, however. Selection of any of its sub-branches will do. Then either, click the clear fault logger button in the drive panel toolbar, or select the Clear Faultlogger command in the Drive menu. Controlling Drives DriveWindow 2 5-9 The Clear Faultlogger command can also be found in the context menu, which you get by clicking with the right mouse button the drive (or a sub-branch within it) in the browse tree pane. Note that a fault logger can also be cleared by using the raw control items. By default, the item set of faults shows the empty fault logger. However, if you were viewing the fault logger in the browsed item set, for example, and the items are off-line, no change happens in the item set, when the fault logger is cleared. If you were not viewing the fault logger in the browsed item set, but you have viewed it some time earlier, and the item set properties are set to use cache when there are changes in the item sets pane, all fault logger items are shown with quality uncertain after clearing the fault logger, if you select to view them. The quality is uncertain because the DriveOPC has cleared the items in its cache, but it is not known for certain that they are also cleared in the drive. Controlling Drives 5-10 DriveWindow 2 If the item set properties are set to use cache when there are changes in the item sets pane, the fault logger items stay uncertain, until you update them (or put them on-line).
