private void Subscribe(string nodeId, string motorType)
{
referenceDescriptionCollection = myClientHelperAPI.ReadStructProperties(nodeId);
Subscription subscription = myClientHelperAPI.Subscribe(1000);
mySubscriptions.Add(subscription);
try
{
foreach (ReferenceDescription tempRefDesc in referenceDescriptionCollection)
{
//use different item names for correct assignment at the notificatino event
if (tempRefDesc.DisplayName.ToString().Contains("startAnyway"))
{
if (motorType == "cooling")
{
coolingStartAnywayNodeId = tempRefDesc.NodeId.ToString();
}
else if (motorType == "heating")
{
heatingStartAnywayNodeId = tempRefDesc.NodeId.ToString();
}
}
if (tempRefDesc.DisplayName.ToString().Contains("speed"))
{
if (motorType == "cooling")
{
coolingSpeedNodeId = tempRefDesc.NodeId.ToString();
}
else if (motorType == "heating")
{
heatingSpeedNodeId = tempRefDesc.NodeId.ToString();
}
}
string monitoredItemName = motorType + "-" + tempRefDesc.DisplayName.ToString();
myMonitoredItem = myClientHelperAPI.AddMonitoredItem(mySubscriptions[mySubscriptions.Count() - 1], tempRefDesc.NodeId.ToString(), monitoredItemName, 1);
myClientHelperAPI.ItemChangedNotification = new MonitoredItemNotificationEventHandler(Notification_MonitoredItem);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
/// <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_Subscription == null)
{
try
{
// Create subscription
m_Subscription = m_Server.Subscribe(1000);
m_Server.ItemChangedNotification += new MonitoredItemNotificationEventHandler(ClientApi_ValueChanged);
btnMonitor.Text = "Stop";
// Create first monitored item
m_Server.AddMonitoredItem(m_Subscription, new NodeId(txtIdentifier1.Text, m_NameSpaceIndex).ToString(), "item1", 100);
// Create second monitored item
m_Server.AddMonitoredItem(m_Subscription, new NodeId(txtIdentifier2.Text, m_NameSpaceIndex).ToString(), "item2", 100);
}
catch (Exception ex)
{
MessageBox.Show("Establishing data monitoring failed:\n\n" + ex.Message);
}
}
else
{
try
{
m_Server.RemoveSubscription(m_Subscription);
m_Subscription = null;
btnMonitor.Text = "Monitor";
txtMonitored1.Text = "";
txtMonitored2.Text = "";
}
catch (Exception ex)
{
MessageBox.Show("Stopping data monitoring failed:\n\n" + ex.Message);
}
}
}
/// <summary>
/// 添加订阅
/// </summary>
/// <param name="tag"></param>
/// <returns></returns>
public bool AddSubscription(TagItem tag)
{
MonitoredItem item = uAClient.AddMonitoredItem(_Subscription, tag.GetNodeId(), tag.Name, tag.SampleRate);
_SubscriptionTags.Add(tag.ServerId, tag);
_MonitorItem.Add(tag.ServerId, item);
if (item.Created)
{
return(true);
}
else
{
return(false);
}
}
/// <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));
// Create the subscription if it does not already exist.
if (m_Subscription == null)
{
m_Subscription = m_Server.Subscribe(200);
m_Server.ItemChangedNotification += new MonitoredItemNotificationEventHandler(ClientApi_ValueChanged);
}
// 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.
MonitoredItem tempMonitoredItem = m_Server.AddMonitoredItem(m_Subscription, sNodeId, "item1", 100);
tempMonitoredItem.Handle = item;
serverHandle = tempMonitoredItem;
// Update status label.
OnUpdateStatusLabel("Adding monitored item succeeded for NodeId:" +
sNodeId, 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);
}
}