5

我一直无法找到解决我的问题的解决方案，所以我打开了一个新主题。

Utgard ( http://openscada.org/projects/utgard ) 对我来说似乎是一个非常有用的工具。在这个阶段，我只想能够通过 Eclipse 在 Windows 8 操作系统上本地访问 TOP OPC 服务器。但是，当尝试运行他们的教程时，我最终会遇到“访问被拒绝”。我不认为我在用户名、密码等方面犯了任何错误。

Exele OPC DA 测试客户端不返回任何错误。我可以连接、检索和重写值。

请注意，我是 OPC 和 OpenSCADA 的新手。任何帮助将不胜感激。

package org.openscada.opc.tutorial;
import java.util.concurrent.Executors;
import org.jinterop.dcom.common.JIException;
import org.openscada.opc.lib.common.ConnectionInformation;
import org.openscada.opc.lib.da.AccessBase;
import org.openscada.opc.lib.da.DataCallback;
import org.openscada.opc.lib.da.Item;
import org.openscada.opc.lib.da.ItemState;
import org.openscada.opc.lib.da.Server;
import org.openscada.opc.lib.da.SyncAccess;

 public class UtgardTutorial1 {


public static void main(String[] args) throws Exception {
    // create connection information
    final ConnectionInformation ci = new ConnectionInformation();
    //final ConnectionInformation connectionInformation = new ConnectionInformation();
    ci.setHost("127.0.0.1");
    //ci.setDomain("");
    ci.setUser("Me");
    ci.setPassword("Password");
    ci.setProgId("SWToolbox.TOPServer.V5");
    //ci.setClsid("680DFBF7-C92D-484D-84BE-06DC3DECCD68"); // if ProgId is not working, try it using the Clsid instead
    // create an id for the tag you want to retrieve
    final String itemId = "_System._Time_Second";
    // create a new server
    final Server server = new Server(ci, Executors.newSingleThreadScheduledExecutor());
    //final Server serverServer = new Server(connectionInformation, Executor.newSingleThreadSchedulesExecutor);

    try {
        // connect to server
        server.connect();
        // add sync access, poll every 500 ms
        final AccessBase access = new SyncAccess(server, 500);
        access.addItem(itemId, new DataCallback() {
            @Override
            public void changed(Item item, ItemState state) {
                System.out.println(state);
            }
        });
        // start reading
        access.bind();
        // wait a little bit
        Thread.sleep(10 * 1000);
        // stop reading
        access.unbind();
    } catch (final JIException e) {
        System.out.println(String.format("%08X: %s", e.getErrorCode(), server.getErrorMessage(e.getErrorCode())));
    }
}

}

错误堆栈跟踪：

INFO  org.openscada.opc.lib.da.Server - Failed to connect to server
org.jinterop.dcom.common.JIException: Access is denied, please check whether the [domain-username-password] are correct. Also, if not already done please check the GETTING STARTED and FAQ sections in readme.htm. They provide information on how to correctly configure the Windows machine for DCOM access, so as to avoid such exceptions.  [0x00000005]
    at org.jinterop.winreg.smb.JIWinRegStub.winreg_OpenKey(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
    at org.jinterop.dcom.core.JIProgId.getIdFromWinReg(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
    at org.jinterop.dcom.core.JIProgId.getCorrespondingCLSID(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
    at org.jinterop.dcom.core.JIComServer.<init>(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
    at org.openscada.opc.lib.da.Server.connect(Server.java:123) ~[org.openscada.opc.lib_1.0.0.201303051455.jar:na]
    at org.openscada.opc.tutorial.UtgardTutorial1.main(UtgardTutorial1.java:32) [bin/:na]
Caused by: org.jinterop.dcom.common.JIRuntimeException: Access is denied, please check whether the [domain-username-password] are correct. Also, if not already done please check the GETTING STARTED and FAQ sections in readme.htm. They provide information on how to correctly configure the Windows machine for DCOM access, so as to avoid such exceptions.  [0x00000005]
    at org.jinterop.winreg.IJIWinReg$openKey.read(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
    at ndr.NdrObject.decode(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
    at rpc.ConnectionOrientedEndpoint.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
    at rpc.Stub.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
4

2 回答 2

4

You don't have access to the local Windows Registry, so the client fails to convert the server's ProgID to CLSID. Make sure you run the application with enough privileges in there, i.e. that you are an Administrator user.

Alternatively, you can just configure the connection using the server's CLSID, so you will not need the registry.

An OPC client should actually use the OpcEnum service running on the server computer to do the ProgID to CLSID conversion. Perhaps the service is not available or Utgard only tries the registry (I do not know Utgard myself). If you don't have the server installed on the client machine, the registry-based ProgID to CLSID conversion will fail anyway, since that information is not available in the local Windows Registry. The worst case is that Utgard will try to open the remote Windows Registry, which only rarely succeeds (or you need to ensure that it's enabled separately).

Note that as I do not know Utgard, I am just guessing which strategies it is attempting. Nevertheless, using CLSID only will bypass the whole conversion part, which is your problem.

E: Considering that your other client can connect without a problem, I suspect that Utgard does not try to use OpcEnum at all.

于 2013-08-08T07:30:26.693 回答
1

我得到了同样的错误，并通过将以下补丁应用于注册表来解决问题：

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
  • 创建或修改 32 位 DWORD：LocalAccountTokenFilterPolicy
  • 将值设置为：1
于 2018-02-12T10:46:28.193 回答