private Opc.Da.Subscription subscription = null; //定义组对象
public COpcServerCOM()
{
m_Discovery = new OpcCom.ServerEnumerator();
}
/// <summary>
/// OPC访问数据类构造函数
/// </summary>
public COPCAccessTimer()
{
m_discovery = new OpcCom.ServerEnumerator();
}
/// <summary>
/// OPC访问数据类构造函数
/// </summary>
public COPCAccess(int rate)
{
m_discovery = new OpcCom.ServerEnumerator();
m_updateRate = rate;
}
/// <summary>
/// OPC访问数据类构造函数
/// </summary>
public COPCAccess(string ipOrHostName, int rate)
{
m_discovery = new OpcCom.ServerEnumerator();
m_ipOrHostName = ipOrHostName;
m_updateRate = rate;
}
/// <summary>
/// OPC访问数据类构造函数
/// </summary>
public COPCAccess(string ipOrHostName)
{
m_discovery = new OpcCom.ServerEnumerator();
m_ipOrHostName = ipOrHostName;
}