MVME51005E-0163 DCS模塊卡件
另請(qǐng)參閱：什么是OPC服務(wù)器脫機(jī)OPC脫機(jī)模式3。有關(guān)OPC服務(wù)器的信息如果您想了解當(dāng)前連接的OPC服務(wù)器的相關(guān)信息，請(qǐng)從“網(wǎng)絡(luò)”菜單中選擇“網(wǎng)絡(luò)服務(wù)器狀態(tài)”。OPC服務(wù)器7-8 DriveWindow 2顯示OPC服務(wù)器狀態(tài)對(duì)話框。您可能特別感興趣的信息是，正在使用進(jìn)程內(nèi)服務(wù)器（DLL）還是本地服務(wù)器（EXE）。您還可以看到版本號(hào)和內(nèi)部版本號(hào)。單擊“確定”按鈕關(guān)閉對(duì)話框。另請(qǐng)參閱：什么是OPC服務(wù)器OPC服務(wù)器驅(qū)動(dòng)窗口2 7-9 4。查看和更改OPC設(shè)置可以查看和更改當(dāng)前顯示的項(xiàng)目集的聯(lián)機(jī)項(xiàng)目或故障和事件的OPC設(shè)置。每個(gè)項(xiàng)目集都有自己的設(shè)置。實(shí)際上，OPC設(shè)置可以被視為項(xiàng)目集的屬性。但是，您很少需要對(duì)它們進(jìn)行任何更改，因此它們?cè)贒riveWindow中單獨(dú)顯示。請(qǐng)注意，每個(gè)項(xiàng)目集都有自己的OPC組。為了保持低通信流量，僅激活當(dāng)前顯示的項(xiàng)目集的組。請(qǐng)注意，您所做的更改將與工作區(qū)一起保存/恢復(fù)。我們不鼓勵(lì)你做任何改變。只有當(dāng)您連接到網(wǎng)絡(luò)相對(duì)較慢的遠(yuǎn)程OPC服務(wù)器時(shí)，和/或您希望在項(xiàng)目集中有大量項(xiàng)目聯(lián)機(jī)時(shí)，您才能為該項(xiàng)目集使用比正常（本地：1秒，遠(yuǎn)程：3秒）更高的更新率。注意，DriveWindow使用的OPC服務(wù)器中還有其他組。但是，您無(wú)法查看和更改其設(shè)置。要查看或更改當(dāng)前顯示的項(xiàng)目集的OPC設(shè)置，請(qǐng)從桌面菜單的項(xiàng)目集子菜單中選擇OPC設(shè)置命令。此時(shí)將顯示OPC設(shè)置對(duì)話框。如果OPC服務(wù)器是DriveOPC，則服務(wù)器不使用死區(qū)、時(shí)間偏差和LCID值，盡管這些值可以接受。筆記不要取消選中Active字段。如果您這樣做，在線值的更新將停止，因?yàn)樵贠PC服務(wù)器中進(jìn)行讀取的線程將停止。實(shí)際上，唯一可以更改的字段是“更新速率”。OPC服務(wù)器7-10 DriveWindow 2如果未進(jìn)行任何更改，請(qǐng)單擊“取消”按鈕。單擊確定按鈕將新值寫入OPC服務(wù)器并關(guān)閉對(duì)話框。單擊應(yīng)用按鈕將值寫入OPC服務(wù)器，而不關(guān)閉對(duì)話框。請(qǐng)注意，不能通過(guò)單擊“應(yīng)用”取消已寫入的值。實(shí)際上，首先單擊“應(yīng)用”，然后單擊“取消”與單擊“確定”具有相同的效果。另請(qǐng)參閱：什么是OPC服務(wù)器5.斷開OPC服務(wù)器請(qǐng)注意，如果要打開圖形（.dwt）文件或工作區(qū)（.ddw）文件，則無(wú)需斷開OPC Server。如果需要，DriveWindow會(huì)在連接到新的OPC服務(wù)器之前自動(dòng)執(zhí)行此操作。要斷開當(dāng)前連接的OPC服務(wù)器，請(qǐng)從“網(wǎng)絡(luò)”菜單中選擇“斷開服務(wù)器”，或按Ctrl+Shift+N。在上下文菜單中可以找到相同的命令，當(dāng)連接時(shí)，當(dāng)瀏覽樹窗格為空時(shí)，即沒(méi)有驅(qū)動(dòng)器且沒(méi)有打開的參數(shù)文件時(shí)，可以通過(guò)在瀏覽樹窗格上單擊鼠標(biāo)右鍵獲得該命令。如果您已控制，則需要確認(rèn)釋放控制。OPC服務(wù)器驅(qū)動(dòng)窗口2 7-11成功斷開連接后，標(biāo)題欄中顯示：斷開連接的副作用是：?釋放控制。?監(jiān)視器停止并清除。將從監(jiān)視器中刪除所有通道。
See Also: What is OPC Server OfflineOPC Off-line Mode 3. Information about OPC Server If you want information about the currently connected OPC Server, select Network Server Status from the Network menu. OPC Server 7-8 DriveWindow 2 An OPC Server Status dialog box is presented. Information of special interest to you might be, whether the in-process server (DLL) or local server (EXE) is in use. You can also see version and build numbers. Click the OK button to close the dialog box. See Also: What is OPC Server OPC Server DriveWindow 2 7-9 4. Viewing and Changing OPC Settings The OPC settings of the on-line items or faults and events of the currently shown item set can be viewed and changed. Each item set has settings of its own. Actually OPC settings can be regarded as properties of the item set. However, you seldom need to make any changes to them, so they are presented separately in DriveWindow. Note that that each item set has an OPC group of its own. To keep the communication traffic low, only the group of the currently displayed item set is made active. Note that the changes you make are saved/restored with a workspace. We discourage you to make any changes. Only if you are connected to a remote OPC Server with a relatively slow network, and/or you want to have a huge amount of items on-line in an item set, you can use bigger update rate than the normal (local: 1 s, remote: 3 s) for that item set. Note that there are also other groups in the OPC Server used by DriveWindow. However, you are not able to view and change their settings. To view or change the OPC settings of the currently displayed item set, select the OPC Settings command from the Item Set submenu of the Desktop menu. An OPC Settings dialog box is presented. If the OPC Server is DriveOPC, the values Deadband, Time Bias, and LCID are not used, although accepted, by the server. Note! Do not uncheck the Active field. If you do, updating of the on-line values ceases, because the thread doing the reading in the OPC Server stops. In practice, the only field you may change is Update Rate. OPC Server 7-10 DriveWindow 2 If you did not make any changes, click the Cancel button. Clicking the OK button writes the new values to the OPC Server and closes the dialog box. Clicking the Apply button writes the values to OPC Server without closing the dialog box. Note that you cannot cancel the values already written by clicking Apply. Actually, clicking first Apply and then Cancel has the same effect as clicking OK. See Also: What is OPC Server 5. Disconnecting OPC Server Note that you do not need to disconnect the OPC Server in case you are opening a graph (.dwt) file or a workspace (.dww) file. DriveWindow does it automatically, if required, before connecting to a new OPC Server. To disconnect the currently connected OPC Server, select Disconnect Server from the Network menu or by pressing Ctrl+Shift+N. The same command can be found in the context menu, which you get by clicking with the right mouse button on the browse tree pane when it is empty while you are connected, i.e., there is no drive and you do not have a parameter file open. If you have control taken, you need to confirm releasing of control. OPC Server DriveWindow 2 7-11 After successful disconnection, is shown in the title bar: Side effects of disconnecting are: ? Control is released. ? The monitor is stopped and cleared. All channels are removed from the monitor.
