public object itemREAD(OPCItem item)
{
object ItemValues; object Qualities; object TimeStamps;
item.Read(1, out ItemValues, out Qualities, out TimeStamps);
return(ItemValues);
}
/// <summary>
/// 获取节点的所有值，显示在listview中
/// </summary>
private void ShowListView()
{
if (!CreateGroup())
{
return;
}
object value;
object quality;
object timestamp;
//itmHandlerClient = 1234;
OPCBrowser opcbrowser = ServerConnect.KepServer.CreateBrowser();
list = RecurBrowse(opcbrowser);
for (int i = 0; i < list.Count; i++)
{
KepItem = KepItems.AddItem(list[i], itmHandlerClient);
itmHandlerServer = KepItem.ServerHandle;
KepItem.Read((short)OPCDataSource.OPCDevice, out value, out quality, out timestamp);
lv = new ListViewItem(list[i]);
lv.SubItems.Add(Convert.ToString(value));
lv.SubItems.Add(quality.ToString());
lv.SubItems.Add(timestamp.ToString());
listView1.Items.Add(lv);
}
}
////读取标签值
private static string[,] readitemvalue()
{
OPCItem OPC_item;
try
{
int a = opc_group.OPCItems.Count;
string[,] itemvalue = new string[a, 6];
// if (groupadd == true)
{
for (int i = 1; i < opc_group.OPCItems.Count; i++)
{
OPC_item = opc_group.OPCItems.Item(i);
string strID = OPC_item.ItemID;
//if (strID == "CPU224.Input.I00")
{
object quantity;
object time;
object dya;
OPC_item.Read(1, out dya, out quantity, out time);
foreach (var aaa in allservers)
{
itemvalue[i - 1, 0] = (string)aaa;
}
itemvalue[i - 1, 1] = strID;
itemvalue[i - 1, 2] = quantity.ToString();
itemvalue[i - 1, 3] = Convert.ToDateTime(time).AddHours(8).ToString("yyyy-MM-dd HH:mm");
itemvalue[i - 1, 4] = dya.ToString();
itemvalue[i - 1, 5] = i.ToString();
}
}
}
return(itemvalue);
}
catch (Exception ex)
{
MessageBox.Show("获取标签值失败\n" + ex.Message);
OPC_item = null;
opc_group = null;
OPC_server.Disconnect();
connected = false;
groupadd = false;
string[,] a = new string[1, 6];
a[0, 0] = "";
a[0, 1] = "";
a[0, 2] = "";
a[0, 3] = "";
a[0, 4] = "";
a[0, 5] = "";
return(a);
}
}
/// <summary>
/// 通过itemname来获取相应的value值和时间并展示在listview中
/// </summary>
/// <param name="node"></param>
public void ShowData(string node)
{
itemNames.Add(node);
//itmHandlerClient = ++itmHandlerClient;
KepItem = KepItems.AddItem(node, itmHandlerClient);
itmHandlerServer = KepItem.ServerHandle;
KepItem.Read(1, out value, out quality, out timestamp);
listView1.BeginUpdate();
lv = new ListViewItem(node);
lv.Name = node;
lv.SubItems.Add(Convert.ToString(value));
lv.SubItems.Add(quality.ToString());
lv.SubItems.Add(timestamp.ToString());
listView1.Items.Add(lv);
listView1.EndUpdate();
}
public bool TagCheck(string tag)
{
try
{
OPCItem opcItme = objGroup.OPCItems.AddItem(tag, 0); //byte
Thread.Sleep(100);
object ItemValues; object Qualities; object TimeStamps; //同步读的临时变量：值、质量、时间戳
opcItme.Read(1, out ItemValues, out Qualities, out TimeStamps); //同步读，第一
ConnDispose();
return(true);
}
catch
{
ConnDispose();
return(false);
}
}
/// <summary>
/// 实时计时器的响应函数，会调用脉冲频率
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
//void intime_Tick(object sender, EventArgs e)
//{
// Todo_in(pulsedata);
//}
/// <summary>
/// 实时读取波形数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void boxing_Tick(object sender, EventArgs e)
{
object value;
object quality;
object timeStamp;
if (connecteds)
{
item_chuan.Read((short)OPCDataSource.OPCCache, out value, out quality, out timeStamp);
chuandata = (byte[])value;
}
else
{
chuandata = new byte[] { 0x00, 0x00, 0x00, 0x00 };
}
Todo_chuan(chuandata);
}
public string ReadDataByTag(OPCItem item, string tag)
{
object PValue;
object PQuality;
object PTimeStamp;
string res = "";
try
{
item.Read(1, out PValue, out PQuality, out PTimeStamp);
if (Convert.ToInt32(PQuality) != 0)
{
if (Convert.ToString(PValue) == "True")
{
res = "1";
}
else if (Convert.ToString(PValue) == "False")
{
res = "0";
}
else
{
res = Convert.ToString(PValue).Trim();
}
if (res == "System.Int16[]")
{
res = ObjectToString(PValue).Trim();
}
}
else if (Convert.ToInt32(PQuality) == 0)
{
res = null;
}
}
catch (Exception err)
{
string errtxt = string.Format("读取一级数据{0}出现错误：{1}", tag, err.Message);
Logger.logwrite(errtxt);
Logger.logwrite(errtxt, "OPC");
initOPC();
res = OPC_ERROR_FLAG;
}
return(res);
}
/// <summary>
/// 读取PLC中的值
/// </summary>
/// <param name="itemName"></param>
/// <returns></returns>
public PlcValue GetPlcValue(string itemName)
{
lock (o1)
{
PlcValue plc = new PlcValue();
OPCItem opcitem = dic[itemName];
if (opcitem != null)
{
object Value, Quality, TimeStamp;
opcitem.Read(1, out Value, out Quality, out TimeStamp);
plc.objectTimeStamp = TimeStamp;
plc.Quality = Quality;
plc.Value = Value;
plc.ClientHandle = opcitem.ClientHandle;
}
return(plc);
}
}
public string ReadNodeLabel(string name)
{
MonitorOPCItem(name);
if (clientHandleDict.ContainsKey(name))
{
OPCItem item = opcAGroup.OPCItems.GetOPCItem(clientHandleDict[name].ServerHandler);
if (item.Value != null)
{
return(item.Value.ToString());
}
else
{
object value, quality, timestamp;
item.Read(1, out value, out quality, out timestamp);
return(value.ToString());
}
}
return(string.Empty);
}
/// <summary>
/// 使用同步方法读取宁波监控点位置
/// </summary>
public void ReadNBTag()
{
if (validTagFlagNB)
{
object value, quality, timeStamp;
try
{
monitorItemNB.Read(1, out value, out quality, out timeStamp);
}
catch (Exception ex)
{
WriteMsg("读取宁波点位值失败：" + ex.Message);
ReadFailureOpNB();
return;
}
if (quality != null && quality.ToString() == MES_DATA_GOOD_QUALITY)
{
WriteMsg("成功获取宁波点位值：" + value + " 时间：" + DateTime.Parse(timeStamp.ToString()).AddHours(8).ToString("G"));
//若曾达到失败起始值，则提醒恢复正常
if (readFailureCountNB >= configInfo.MinAlertCount)
{
string smsContent = string.Format("宁波监控点位在读取失败{0}次后恢复正常.", readFailureCountNB);
SendSmsMessage(smsContent);
}
//只要任何读到正常值，则将报警计数置为0
readFailureCountNB = 0;
}
else
{
WriteMsg("获取宁波点位质量属性为Bad：" + quality.ToString());
ReadFailureOpNB();
}
}
else
{
WriteMsg("宁波点位名无效");
}
}
public void ReadCurrentValue(out object aValue, out int aQuality, out DateTime aReadTime)
{
if (!IsActive)
{
throw new OpcValueException(
"OPC параметр не активирован, но предпринята попытка чтения: " + Name);
}
object value;
object quality;
object timeStamp;
try {
opcItem.Read((short)Source, out value, out quality, out timeStamp);
}
catch (Exception ex) {
throw new OpcValueException(string.Format("Ошибка при чтении " +
"значения тега {0}: {1}", Name, ex.Message));
}
aValue = value;
aQuality = Convert.ToInt32(quality);
aReadTime = Convert.ToDateTime(timeStamp);
}
public bool Read(string groupName, string itemID, out object result)
{
bool re = false;
result = null;
try
{
// Console.WriteLine("{0},{1}", groupName, itemID);
OPCGroup myGroup = myServer.OPCGroups.GetOPCGroup(groupName);
if (myGroup == null)
{
return(false);
}
// Console.WriteLine("开始读OPC Item:{0}", itemID);
OPCItem myItem = myGroup.OPCItems.Item(itemID);
if (myItem == null)
{
return(false);
}
object quality = 0;
object timeStamp = 0;
short source = (short)OPCDataSource.OPCDevice;
OPCItem item = myGroup.OPCItems.Item(itemID);
myItem = myGroup.OPCItems.GetOPCItem(item.ServerHandle);
myItem.Read(source, out result, out quality, out timeStamp);
return(true);
}
catch (System.Exception ex)
{
Console.WriteLine("发生异常：{0},{1},{2}", groupName, itemID, ex.ToString());
return(false);
}
}
public override object Read(string itemName)
{
OPCItem item = GetItem(itemName);
return(item.Read());
}