public bool GetItems(string groupName, out string[] itemNames, out string reStr)
{
reStr = "";
itemNames = null;
try
{
OPCGroups myGroups = myServer.OPCGroups;
if (myGroups == null)
{
reStr = "得到项列表失败,组名：" + groupName + "不存在";
return(false);
}
OPCGroup myGroup = myGroups.GetOPCGroup(groupName);
if (myGroup == null)
{
reStr = "得到项列表失败";
return(false);
}
OPCItems items = myGroup.OPCItems;
itemNames = new string[items.Count];
for (int i = 0; i < itemNames.Count(); i++)
{
itemNames[i] = items.Item(i + 1).ItemID;
}
reStr = "得到项列成功!";
return(true);
}
catch (System.Exception ex)
{
reStr = "得到项列表失败，返回异常：" + ex.Message;
return(false);
}
}
/// <summary>
/// 移除项，注意：此接口目前未能实现，需要继续调试
/// </summary>
/// <param name="groupName"></param>
/// <param name="itemName"></param>
/// <param name="reStr"></param>
/// <returns></returns>
public bool RemoveItem(string groupName, string itemName, out string reStr)
{
reStr = "";
try
{
OPCGroup myGroup = GetGroup(groupName);
if (myGroup == null)
{
reStr = "组：" + groupName + "不存在 ";
return(false);
}
OPCItems items = myGroup.OPCItems;
OPCItem item = items.Item(itemName);
Array itemHandles = Array.CreateInstance(typeof(int), 1);
itemHandles.SetValue(item.ServerHandle, 0);
Array errors = null;// Array.CreateInstance(typeof(long), 10);
items.Remove((int)1, ref itemHandles, out errors);
reStr = "移除项:" + itemName + "成功!";
return(true);
}
catch (System.Exception ex)
{
reStr = "移除项:" + itemName + "失败,返回异常：" + ex.Message;
return(false);
}
}
//初始化OPC行
static void InitItems()
{
OPCGroup group = _opcServer.OPCGroups.GetOPCGroup(groupName);
OPCItems items = group.OPCItems;
OPCItem a = items.AddItem(itemID1, 1);
OPCItem b = items.AddItem(itemID2, 2);
a = items.Item(2);
b = items.Item(1);
int c = 0;
c = a.ClientHandle;
c = b.ClientHandle;
c = 0;
}
public bool kep_initial(string path, string devicesymbol)
{
try
{
int num = path.LastIndexOf("\\Config");
string device = path.Substring(num + 8);
KepServer = new OPCServer();
////连接opc server
KepServer.Connect("KEPware.KEPServerEx.V4", "");
//(2)建立一个opc组集合
KepGroups = KepServer.OPCGroups;
//(3)建立一个opc组
KepGroup = KepGroups.Add(null); //Group组名字可有可无
//(4)添加opc标签
KepGroup.IsActive = true; //设置该组为活动状态，连接PLC时，设置为非活动状态也一样
KepGroup.IsSubscribed = true; //设置异步通知
KepGroup.UpdateRate = 250;
KepServer.OPCGroups.DefaultGroupDeadband = 0;
KepItems = KepGroup.OPCItems; //建立opc标签集合
//string path = System.Environment.CurrentDirectory;
StreamReader sr = new StreamReader(path);
string content = sr.ReadToEnd();
string[] str = content.Split(new string[] { "\r\n" }, StringSplitOptions.None);
//混砂车标注名处理
if (devicesymbol == "B")
{
foreach (object temp0 in str)
{
string temp1 = temp0.ToString();
string temp = temp1.Replace("\t", "");
KepItems.AddItem("iFrac.Blender." + temp.ToString(), item_oder);
Item_serverhandle1_To_PC[item_oder_To_PC] = KepItems.Item(item_oder).ServerHandle;
item_oder_To_PC = item_oder_To_PC + 1;
item_oder = item_oder + 1;
}
}
//压力泵标注名处理
if (devicesymbol == "F")
{
for (int i = 0; i < str.Length; i++)
{
string temp1 = str[i].ToString();
string temp = temp1.Replace("\t", "");
int num1 = i / 5 + 1; int num2 = i % 5 + 1;
KepItems.AddItem("iFrac_F" + num1.ToString("00") + ".Frac.var" + num2, item_oder);
Item_serverhandle1_To_PC[item_oder_To_PC] = KepItems.Item(item_oder).ServerHandle;
item_oder_To_PC = item_oder_To_PC + 1;
item_oder = item_oder + 1;
}
}
//0512 状态信号和ip地址
if (devicesymbol == "S")
{
for (int i = 0; i < str.Length; i++)
{
string temp1 = str[i].ToString();
string temp = temp1.Replace("\t", "");
KepItems.AddItem(temp, item_oder);
Item_serverhandle1_To_PC[item_oder_To_PC] = KepItems.Item(item_oder).ServerHandle;
item_oder_To_PC = item_oder_To_PC + 1;
item_oder = item_oder + 1;
}
}
return(true);
}
catch (Exception ex)
{
return(false);
}
}