MVME5500-0161工控模块备件
由于这些值与测量值相同，因此不进行缩放。导出为测量值的数据记录器与显示的数据记录器之间的唯一区别是，前一种情况下的值是未缩放的，但后一种情况中的值是缩放的。趋势6-124 DriveWindow 2另请参阅：导出趋势图子菜单数据记录器显示器监视器显示上下文菜单将趋势复制到剪贴板处理导出文件如何导出参数DriveWindow 2 7-1第7章-OPC服务器内容1.什么是OPC OPC服务器7-2 DriveWindow 2 1.什么是一个OPC服务器OPC服务器是一个软件模块，它实现了OPC基金会（www.opcfoundation.org）制定的OPC数据访问规范。OPC代表“OLE for Process Control”。原则上，DriveWindow可以作为任何OPC服务器的用户界面。但是，DriveWindow包含许多与驱动器相关的功能，这些功能要求OPC服务器为DriveOPC。DriveOPC包含在DriveWindow的安装中。安装DriveWindow时，也会安装DriveOPC。DriveOPC也可以通过DCOM远程使用。DriveWindow也可以连接到远程OPC服务器。在内部，DriveWindow（自2.10版起）使用另一个OPC服务器OfflineOPC。它用于保存离线图形和工作空间，以及恢复图形或模拟驱动器。OPC服务器可以有两种版本：•进程内服务器，即DLL。它只能在本地使用。•本地服务器，这是一个EXE文件。它在远端使用，但也可以在本地使用。通常，DriveWindow在本地使用进程内服务器。OfflineOPC只有一个进程中版本。OPC服务器未静态连接。用户必须请求连接。用户还必须选择要连接的服务器和PC。但是，用户不应直接连接到OfflineOPC。用户通常也会请求断开连接。请注意，即使本地没有安装DDCS硬件，也可以将DriveWindow用作远程客户端。另请参阅：DriveOPC OfflineOPC Offline Mode Offline Connection 2.连接到OPC服务器在DriveWindow中完成的大多数操作都需要连接到OPC Server。虽然原则上，DriveWindow可以作为任何OPC服务器的用户界面，但OPC服务器必须是DriveOPC。OPC服务器驱动窗口2 7-3注意，您可以打开参数文件并使用它，而无需连接到OPC服务器。还要注意，当您保存和恢复工作区时，连接也会恢复。如果需要，当前连接的OPC服务器已断开。
Because the values are as measured, they are unscaled. The only difference between a datalogger exported as measured and as shown is that the values in the previous case are unscaled, but in the latter they are scaled. Trends 6-124 DriveWindow 2 See Also: Exporting Trends Graph Submenu Context Menu of Monitor Display Context Menu of Datalogger Display Copying Trends to the Clipboard Handling of Exported Files How to Export Parameters DriveWindow 2 7-1 Chapter 7 - OPC Server Contents 1. What is OPC OPC Server 7-2 DriveWindow 2 1. What is OPC Server An OPC Server is a software module, which implements OPC data access specification made by OPC Foundation (www.opcfoundation.org). OPC stands for “OLE for Process Control”. In principle, DriveWindow is able to act as a user interface for any OPC Server. However, DriveWindow contains many drive dependent features, which require that the OPC Server is DriveOPC. DriveOPC is included in the installation of DriveWindow. When you install DriveWindow, you get also DriveOPC installed. DriveOPC can be used also remotely through DCOM. DriveWindow has the ability to connect to a remote OPC Server, too. Internally, DriveWindow (since version 2.10) uses another OPC Server, OfflineOPC. It is used for saving graphs and workspaces for off-line as well as restoring graphs or simulating drives. There can be two versions of an OPC Server: • In-process server, which is a DLL. It can be used only locally. • Local server, which is an EXE. It is used at the remote end, but can also be used locally. Normally, DriveWindow uses locally the in-process server. There is only an in-process version of OfflineOPC. The OPC Server is not statically connected. The connection must be requested by the user. The user must also select the Server and the PC, which to connect. However, a user should never connect directly to OfflineOPC. Disconnecting is usually also requested by the user. Note that you can use DriveWindow as a remote client even if you do not have DDCS hardware installed locally. See Also: DriveOPC OfflineOPC Off-line Mode Off-line Connection 2. Connecting to OPC Server Most operations done in DriveWindow require that you have connected to an OPC Server. Although, in principle, DriveWindow is able to act as a user interface for any OPC Server, it is required that the OPC Server is DriveOPC. OPC Server DriveWindow 2 7-3 Note that you are able to open a parameter file and work with it without a connection to an OPC Server. Note also that when you are saving and restoring a workspace, connection is restored, too. Currently connected OPC Server is disconnected, if needed.
