Connection to Matrikon OPC Simulation Server via Utgard

Working demo, tested on Windows 10 and Java 8.

User must have administrator rights on Windows.

Errors that might occur:

00000005: Login error (does the user has administrator rights !?)
8001FFFF: Firewall, RPC dynamic ports are not open (see below)
80040154: Double check CLSID in registry, below HKEY_CLASSES_ROOT

Firewall rules

netsh advfirewall firewall add rule^
  name="DCOM-dynamic"^
  dir=in^
  action=allow^
  protocol=TCP^
  localport=RPC^
  remoteport=49152-65535

rem the next one does not seems needed
netsh advfirewall firewall add rule name="DCOM" dir=in action=allow protocol=TCP localport=135

Java code

package demo.opc;

import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;

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 UtgardReaderDemo {
  /**
   * Main application, arguments are provided as system properties, e.g.<br>
   * java -Dhost="localhost" -Duser="admin" -Dpassword="secret" -jar demo.opc.jar<br>
   * Tested with a windows user having administrator rights<br>
   * @param args unused
   * @throws Exception in case of unexpected error
   */
  public static void main(String[] args) throws Exception {
    Logger.getLogger("org.jinterop").setLevel(Level.ALL); // Quiet => Level.OFF

    final String host = System.getProperty("host", "localhost");
    final String user = System.getProperty("user", System.getProperty("user.name"));
    final String password = System.getProperty("password");
    // Powershell: Get-ItemPropertyValue 'Registry::HKCR\Matrikon.OPC.Simulation.1\CLSID' '(default)'
    final String clsId = System.getProperty("clsId", "F8582CF2-88FB-11D0-B850-00C0F0104305");
    final String itemId = System.getProperty("itemId", "Saw-toothed Waves.Int2");

    final ConnectionInformation ci = new ConnectionInformation(user, password);
    ci.setHost(host);
    ci.setClsid(clsId);

    final Server server = new Server(ci, Executors.newSingleThreadScheduledExecutor());
    server.connect();

    final AccessBase access = new SyncAccess(server, 1000);
    access.addItem(itemId, new DataCallback() {
      public void changed(final Item item, final ItemState state) {
        System.out.println(state);
      }
    });

    access.bind();
    Thread.sleep(10_000L);
    access.unbind();
  }
}

build.gradle

plugins {
  id 'java-library'
  id 'eclipse'
}

repositories {
  mavenCentral()
}

dependencies {
  implementation 'org.bouncycastle:bcprov-jdk15on:1.60'
  implementation 'org.openscada.utgard:org.openscada.opc.lib:1.5.0'
}

jar  {
  manifest {
    attributes(
      'Class-Path': configurations.runtimeClasspath.collect { 'lib/' + it.getName() }.join(' '),
      'Main-Class': 'demo.opc.UtgardReaderDemo'
    )
  }
}

assemble {
  dependsOn 'dependenciesCopy'
}

task dependenciesCopy(type: Copy) {
  group 'dependencies'
  from sourceSets.main.compileClasspath
  into "$libsDir/lib"
}