//Initialize OPC Server and obtain the IOPCSyncIO interface
private bool InitializeServer()
{
OPCServerLib.Server server = new OPCServerLib.Server();
int TimeBias = 0;
float DeadBand = 0.0f;
uint phServerGroup;
uint UpdateRate;
var id = typeof(OPC.IOPCItemMgt).GUID;
object p;
server.AddGroup("Group1", 1, 10, 1, ref TimeBias, ref DeadBand, 0, out phServerGroup, out UpdateRate, ref id, out p);
//Obtain IOPCItemMgt interface
OPC.IOPCItemMgt pOPCItemMgt = (OPC.IOPCItemMgt)p;
Item[] items = { new Item("ItemY1", 1, VarEnum.VT_R8, VarEnum.VT_EMPTY, false, null),
new Item("ItemY2", 2, VarEnum.VT_R8, VarEnum.VT_EMPTY, false, null),
new Item("ItemY3", 3, VarEnum.VT_R8, VarEnum.VT_EMPTY, false, null) };
IntPtr itemPtr = OPCHelper.GetIntPtrfromItemArray(items);
IntPtr dataPtr;
IntPtr errorsPtr;
pOPCItemMgt.AddItems(3, itemPtr, out dataPtr, out errorsPtr);
//Obtain IOPCSyncIO interface
syncIO = (OPC.IOPCSyncIO)p;
return(true);
}
//Obtain signals from IOPCSyncIO
private ItemValue[] ReadSignals()
{
int[] serverIds = { 0, 1, 2 };
IntPtr dataPtr1;
IntPtr errorsPtr1;
syncIO.Read(DataSource.Cache, 3, serverIds, out dataPtr1, out errorsPtr1);
ItemValue[] temItem = OPCHelper.GetSignalsState(3, dataPtr1, errorsPtr1);
for (int k = 0; k < 3; ++k)
{
if (temItem[k].Error < 0)
{
Console.WriteLine("Error!");
return(null);
}
}
return(temItem);
}
private void 获取opc配置_Click(object sender, RoutedEventArgs e)
{
Tuple <string, Guid> server = cmb_OpcSerList.SelectedItem as Tuple <string, Guid>;
if (null == server)
{
MessageBox.Show("请选择服务点");
return;
}
List <DriveNodeEntity> listDriveNodes;
OPCHelper.GetOpcServerAllItem(txtOpcIp.Text.Trim(), server.Item2, out listDriveNodes);
driveNodeRoot.nodeStrGuid = server.Item2.ToString();
driveNodeRoot.nodeName = server.Item1;
driveNodeRoot.serviceIp = txtOpcIp.Text.Trim();
driveNodeRoot.childNode = listDriveNodes;
string strDriveNodeRoot;
JsonHelper.ObjectToStrJson(driveNodeRoot, out strDriveNodeRoot);
Console.WriteLine(strDriveNodeRoot);
}
private void 获取opc服务列表_Click(object sender, RoutedEventArgs e)
{
List <Tuple <string, Guid> > opcSerList = OPCHelper.GetOPCServiceList(txtOpcIp.Text.Trim());
cmb_OpcSerList.ItemsSource = opcSerList;
}