MVME705Bw/RFI控制器模塊
默認情況下，控制項集中的項被隱藏并脫機。2.2.1當您：?斷開OPC服務器時，自動釋放控制。?恢復工作區(qū)。?關閉DriveWindow。?注銷或關閉Windows操作系統(tǒng)?？刂乞?qū)動器5-8 DriveWindow 2自DriveWindow版本2.11起，您必須確認自動釋放控制，例如：請注意，如果您在注銷或關閉Windows操作系統(tǒng)時取消釋放控制，則注銷或關閉將被取消，但可能有應用程序未為這種情況做好適當準備，并且可能在會話結束之前變得不穩(wěn)定。另請參閱：控制驅(qū)動器獲取和釋放控制獲取控制3.清除故障記錄器要清除驅(qū)動器的故障記錄器，取決于您是否已控制某個驅(qū)動器：?如果您已控制某一驅(qū)動器，則只能清除該驅(qū)動器的故障記錄器（除非使用原始控制項）。?如果您尚未控制任何驅(qū)動器，您可以清除任何選定驅(qū)動器的故障記錄器。要清除驅(qū)動器的故障記錄器，請首先通過在瀏覽樹窗格中單擊該驅(qū)動器來選擇該驅(qū)動器。但是，不必選擇其根。選擇其任何分支機構即可。然后，單擊驅(qū)動器面板工具欄中的清除故障記錄器按鈕，或在驅(qū)動器菜單中選擇清除故障記錄器命令?？刂乞?qū)動器驅(qū)動器窗口2 5-9清除故障記錄器命令也可以在上下文菜單中找到，您可以通過在瀏覽樹窗格中單擊驅(qū)動器（或其中的子分支）獲得該命令。注意，也可以使用原始控制項清除故障記錄器。默認情況下，故障項集顯示空故障記錄器。但是，例如，如果您正在瀏覽的項目集中查看故障記錄器，并且項目處于脫機狀態(tài)，則在清除故障記錄器時，項目集中不會發(fā)生任何更改。如果您沒有在瀏覽的項目集中查看故障記錄器，但您已經(jīng)在一段時間之前查看過它，并且項目集屬性設置為在項目集窗格中發(fā)生更改時使用緩存，則如果您選擇查看，則在清除故障記錄器后，所有故障記錄器項目都將以質(zhì)量不確定的方式顯示。質(zhì)量是不確定的，因為DriveOPC已經(jīng)清除了其緩存中的項目，但無法確定它們是否也在驅(qū)動器中清除。控制驅(qū)動器5-10驅(qū)動器窗口2如果項目集屬性設置為在項目集窗格中發(fā)生更改時使用緩存，則故障記錄器項目將保持不確定狀態(tài)，直到您更新它們（或使其聯(lián)機）。
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).
