private void initData()
{
//下一步增加数据连接，保证能够对OPC UA服务器进行修改
Subscription in_Subscription = m_Server.AddSubscription(100);
object serverHandle = null; //初始化服务器句柄
String nodeIDXStr = "ns=2;s=Channel1.Device1.Tag1";
NodeId nodeIdX = new NodeId(nodeIDXStr);
String nodeIDYStr = "ns=2;s=Channel1.Device1.Tag2";
NodeId nodeIdY = new NodeId(nodeIDYStr);
String iidX = "motorXPosition";
object itemX = iidX;
String iidY = "motorYPosition";
object itemY = iidY;
try
{
in_Subscription.AddDataMonitoredItem(nodeIdX, itemX, ClientApi_ValueChanged, 100, out serverHandle);
in_Subscription.AddDataMonitoredItem(nodeIdY, itemY, ClientApi_ValueChanged, 100, out serverHandle);
MainWindow.myMotorPos.XValue = 0;
MainWindow.myMotorPos.YValue = 0;
}
catch (Exception ex)
{
Console.WriteLine("添加项时出现异常，异常信息：" + ex);
}
}
/// <summary>
/// Starts the monitoring of the values of the two variables entered in the From.
/// The NodeIds used for the monitoring are constructed from the identifier entered
/// in the Form and the namespace index detected in the connect method
/// </summary>
private void btnMonitor_Click(object sender, EventArgs e)
{
// Check if we have a subscription
// - No -> Create a new subscription and create monitored items
// - Yes -> Delete Subcription
if (m_Subscipition == null)
{
try
{
// Handle is not stored since we delete the whole subscription
object monitoredItemServerHandle = null;
// Create subscription
m_Subscipition = m_Server.AddSubscription(100);
btnMonitor.Text = "Stop";
// Create first monitored item
m_Subscipition.AddDataMonitoredItem(
new NodeId(txtIdentifier1.Text, m_NameSpaceIndex),
txtMonitored1,
ClientApi_ValueChanged,
100,
out monitoredItemServerHandle);
// Create second monitored item
m_Subscipition.AddDataMonitoredItem(
new NodeId(txtIdentifier2.Text, m_NameSpaceIndex),
txtMonitored2,
ClientApi_ValueChanged,
100,
out monitoredItemServerHandle);
}
catch (Exception ex)
{
MessageBox.Show("Establishing data monitoring failed:\n\n" + ex.Message);
}
}
else
{
try
{
m_Server.RemoveSubscription(m_Subscipition);
m_Subscipition = null;
btnMonitor.Text = "Monitor";
txtMonitored1.Text = "";
txtMonitored2.Text = "";
}
catch (Exception ex)
{
MessageBox.Show("Stopping data monitoring failed:\n\n" + ex.Message);
}
}
}
public void CreateMySubscipition(StationModel station, APPConfiguration appconfig)
{
object monitoredItemServerHandle = null;
int interval = Convert.ToInt32(appconfig.PublishingInterval);
uint rate = Convert.ToUInt32(appconfig.SamplingRate);
Subscription mysubscription = station.StationOPCServer.AddSubscription(interval);
for (int i = 0; i < station.MonitorNodes.Count; i++)
{
mysubscription.AddDataMonitoredItem(
station.MonitorNodes[i],
station.MonitorClientHandl[i],
rate,
out monitoredItemServerHandle);
}
}
private void initData(opcUAServer curServer)
{
Subscription in_Subscription = curServer.AddSubscription(100);
object serverHandle = null; //初始化服务器句柄
String nodeIDStr = "ns=2;s=curSimulation.IOGroup.Input0";
NodeId nodeId = new NodeId(nodeIDStr);
String iid = "data1";
object item = iid;
try
{
in_Subscription.AddDataMonitoredItem(nodeId, item, ClientApi_ValueChanged, 100, out serverHandle);
dataGridData myData = new dataGridData();
myData.IID = iid;
myData.varName = "I0";
myData.varValue = 0;
beckhoffInputData.Add(myData);
}
catch (Exception ex)
{
Console.WriteLine("添加项时出现异常，异常信息：" + ex);
}
serverHandle = null; //初始化服务器句柄
nodeIDStr = "ns=2;s=curSimulation.IOGroup.Input1";
nodeId = new NodeId(nodeIDStr);
iid = "data2";
item = iid;
try
{
in_Subscription.AddDataMonitoredItem(nodeId, item, ClientApi_ValueChanged, 100, out serverHandle);
dataGridData myData = new dataGridData();
myData.IID = iid;
myData.varName = "I1";
myData.varValue = 0;
beckhoffInputData.Add(myData);
}
catch (Exception ex)
{
Console.WriteLine("添加项时出现异常，异常信息：" + ex);
}
for (int i = 2; i < 16; i++)
{
dataGridData myData = new dataGridData();
myData.varName = "I" + i;
myData.varValue = 0;
beckhoffInputData.Add(myData);
}
for (int i = 0; i < 16; i++)
{
dataGridData myData = new dataGridData();
myData.varName = "O" + i;
myData.varValue = 0;
beckhoffOutputData.Add(myData);
}
dataGridData otherData = new dataGridData();
otherData.varName = "AI1";
otherData.varValue = 0;
beckhoffOtherData.Add(otherData);
otherData = new dataGridData();
otherData.varName = "AO1";
otherData.varValue = 0;
beckhoffOtherData.Add(otherData);
otherData = new dataGridData();
otherData.varName = "电流";
otherData.varValue = 0;
beckhoffOtherData.Add(otherData);
otherData = new dataGridData();
otherData.varName = "气压";
otherData.varValue = 0;
beckhoffOtherData.Add(otherData);
}
/// <summary>
/// Finishes a drag and drop action whereas this control is used as target.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void MonitoredItems_DragDrop(object sender, DragEventArgs e)
{
try
{
// Retrieve the event data and create the according nodeid.
String sNodeId = (String)e.Data.GetData(typeof(System.String));
NodeId nodeId = new NodeId(sNodeId);
// Create the subscription if it does not already exist.
if (m_Subscription == null)
{
m_Subscription = m_Server.AddSubscription(100);
}
// Add the attribute name/value to the list view.
ListViewItem item = new ListViewItem(sNodeId);
object serverHandle = null;
// Prepare further columns.
item.SubItems.Add("100"); // Sampling interval by default.
item.SubItems.Add(String.Empty);
item.SubItems.Add(String.Empty);
item.SubItems.Add(String.Empty);
item.SubItems.Add(String.Empty);
item.SubItems.Add(String.Empty);
try
{
// Add the item and apply any changes to it.
m_Subscription.AddDataMonitoredItem(nodeId, item, ClientApi_ValueChanged, 100, out serverHandle);
// Update status label.
OnUpdateStatusLabel("Adding monitored item succeeded for NodeId:" +
nodeId.ToString(), true);
}
catch (ServiceResultException monitoredItemResult)
{
item.SubItems[5].Text = monitoredItemResult.StatusCode.ToString();
// Update status label.
OnUpdateStatusLabel("An exception occured while adding an item: " +
monitoredItemResult.Message, false);
}
item.Tag = serverHandle;
MonitoredItemsLV.Items.Add(item);
// Fit column width to the longest item and add a few pixel:
MonitoredItemsLV.Columns[0].Width = -1;
MonitoredItemsLV.Columns[0].Width += 15;
// Fit column width to the column content:
MonitoredItemsLV.Columns[1].Width = -2;
MonitoredItemsLV.Columns[5].Width = -2;
// Fix settings:
MonitoredItemsLV.Columns[2].Width = 95;
MonitoredItemsLV.Columns[3].Width = 75;
MonitoredItemsLV.Columns[4].Width = 75;
}
catch (Exception exception)
{
// Update status label.
OnUpdateStatusLabel("An exception occured while creating a subscription: " +
exception.Message, false);
}
}