/// <summary>
/// 异步读
/// </summary>
/// <param name="tag"></param>
public void AsyncRead(IList <TagItem> tag)
{
List <string> ss = new List <string>();
foreach (var item in tag)
{
ss.Add(item.GetNodeId());
_AsyncReadTags.Add(item.ServerId, item);
}
uAClient.AsyncReadValue(ss, CallBack_Read);
}