public void Disconnect()
{
if (_server == null)
{
throw new InvalidOperationException("OPC Serverに接続されていません。");
}
_group.Dispose();
_group = null;
_server.Dispose();
_server = null;
_serverHandles = null;
}
public void Connect(string progId)
{
_logger.Trace($"Connect( {progId ?? "<null>"} )");
if (_server != null)
{
throw new InvalidOperationException("既にOPC Serverに接続されています。");
}
if (progId == null)
{
throw new ArgumentNullException(nameof(progId));
}
_server = _factory.CreateFromProgId(progId);
if (_server == null)
{
throw new NullReferenceException(nameof(_server));
}
_group = _server.AddGroup("default", true, 1000, 0, 0, 0);
if (_group == null)
{
throw new NullReferenceException(nameof(_group));
}
_serverHandles = new ConcurrentDictionary <string, int>();
}
