/// <summary>
/// opc注册组和数据点
/// </summary>
/// <param name="device"></param>
/// <param name="configs"></param>
public static void OpcRegister(DC_DEVICE device, List <DC_DATA_CONFIG> configs)
{
OpcGroup opcGroup = new OpcGroup(device.ID); //创建组对象
OpcServer.Instance.AddGroup(opcGroup); //组添加到server
opcGroup.DataReceived += OpcGroup_DataReceived;
opcGroup.IsSubscribed = true;
foreach (var config in configs)
{
OpcItem opcItem = new OpcItem(config.ID, device.CHANNEL + ":[" + device.S7CONNECTION + "]" + config.MEMORY_ADDRESS); //创建数据项对象
opcItem.IsActive = config.SUBSCRIPTION == 1?1:0; //当为0时，可读写，但不会订阅数据;为1时，可读写,会订阅数据
opcGroup.AddItem(opcItem); //项添加到组
}
}
/// <summary>
/// 添加组
/// </summary>
/// <param name="opcGroup"></param>
public void AddGroup(OpcGroup opcGroup)
{
GCHandle hTimeBias = GCHandle.Alloc(0, GCHandleType.Pinned);//为指定的对象分配句柄。
GCHandle hPercendDeadBand = GCHandle.Alloc(0, GCHandleType.Pinned);
int updateRate;
Guid riid = typeof(IOPCItemMgt).GUID;
if (string.IsNullOrEmpty(opcGroup.GroupName))//组名称为空，给个默认的组名
{
opcGroup.GroupName = _defaultGroupName;
_defaultGroupName = "Group" + (Convert.ToInt32(_defaultGroupName.Remove(0, 5)) + 1);
}
//if (opcGroup.ClientGroupHandle == 0)
//{
// opcGroup.ClientGroupHandle = _defaultClientGroupHandle;
// _defaultClientGroupHandle++;
//}
try
{
opcServer.AddGroup(opcGroup.GroupName, opcGroup.IsActive, opcGroup.RequestedUpdateRate, opcGroup.ClientGroupHandle,
hTimeBias.AddrOfPinnedObject(), hPercendDeadBand.AddrOfPinnedObject(), opcGroup.LocalId, out opcGroup.ServerGroupHandle,
out updateRate, ref riid, out opcGroup.ObjGroup);
// _lstOpcGroup.Add(opcGroup);
OpcGroups.Add(opcGroup.ClientGroupHandle, opcGroup);
Guid iid = typeof(IOPCDataCallback).GUID; //为所有的异步调用创建回调
opcGroup.ConnectionPointContainer.FindConnectionPoint(ref iid, out opcGroup.ConnectionPoint); //为OPCServer的连接点与客户端接收点之间建立连接
opcGroup.ConnectionPoint.Advise(opcGroup, out opcGroup.dwCookie);
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (hTimeBias.IsAllocated)
{
hTimeBias.Free();
}
if (hPercendDeadBand.IsAllocated)
{
hPercendDeadBand.Free();
}
}
}
