private void btn_Connect_Click(object sender, EventArgs e)
{
EndpointWrapper wrapper;
string endpointUrl;
object item = UrlCB.SelectedItem;
wrapper = (EndpointWrapper)item;
endpointUrl = wrapper.Endpoint.EndpointUrl;
m_Server.Connect(wrapper.Endpoint, true, "OpcUaClient", "SUNRISE");
UrlCB.Enabled = false;
List <string> readList = new List <string>();
List <string> rest = new List <string>();
readList.Add("ns=2;s=/Channel/State/actToolLength1");
readList.Add("ns=2;s=/Channel/GeometricAxis/actToolBasePos[u1,2]");
rest = m_Server.ReadValues(readList);
while (true)
{
rest = m_Server.ReadValues(readList);
label2.Text = rest[1].ToString();
//label2.Update();
label2.Refresh();
}
}
/// <summary>
/// Connect to the UA server and read the namespace table.
/// The connect is based on the Server URL entered in the Form
/// The read of the namespace table is used to detect the namespace index
/// of the namespace URI entered in the Form and used for the variables to read
/// </summary>
private void btnConnect_Click(object sender, EventArgs e)
{
// Connect to the server
try
{
// Connect with URL from Server URL text box
m_Server.Connect(txtServerUrl.Text, "none", MessageSecurityMode.None, false, "", "");
// Toggle enable flag of buttons
toggleButtons(true);
}
catch (Exception ex)
{
MessageBox.Show("Connect failed:\n\n" + ex.Message);
return;
}
// Read Namespace Table
try
{
List <string> nodesToRead = new List <string>();
List <string> results = new List <string>();
nodesToRead.Add("ns=0;i=" + Variables.Server_NamespaceArray.ToString());
// Read the namespace array
results = m_Server.ReadValues(nodesToRead);
if (results.Count != 1)
{
throw new Exception("Reading namespace table returned unexptected result");
}
// Try to find the namespace URI entered by the user
string[] nameSpaceArray = results[0].Split(';');
ushort i;
for (i = 0; i < nameSpaceArray.Length; i++)
{
if (nameSpaceArray[i] == txtNamespaceUri.Text)
{
m_NameSpaceIndex = i;
}
}
// Check if the namespace was found
if (m_NameSpaceIndex == 0)
{
throw new Exception("Namespace " + txtNamespaceUri.Text + " not found in server namespace table");
}
}
catch (Exception ex)
{
MessageBox.Show("Reading namespace table failed:\n\n" + ex.Message);
}
}
private int queryPLCQueueSize()
{
int ret = -1;
List <String> retVals = myClientHelperAPI.ReadValues(PLCTransaction.getOneInputParam(opcQueryQSize));
if (retVals.Count > 0)
{
String firstVal = retVals.ElementAt <String>(0);
ret = int.Parse(firstVal);
}
return(ret);
}
/// <summary>
/// Writes and displays the new values.
/// </summary>
private void UpdateCurrentValues()
{
try
{
// Prepare call to ClientAPI.
List <string> nodesToRead = new List <string>(this.listView.Items.Count);
List <string> readResults = new List <string>();
foreach (ListViewItem item in this.listView.Items)
{
// NodeIds.
nodesToRead.Add(item.SubItems[1].Text);
}
// Call to ClientAPI.
readResults = m_Server.ReadValues(nodesToRead);
int i = 0;
foreach (ListViewItem item in this.listView.Items)
{
// Update current value.
item.SubItems[2].Text = readResults[i];
i++;
}
}
catch (Exception e)
{
// Update status label.
toolStripLabel1.Text = "An error occured.";
}
}
//ns=3;s="数据块_1"."bbb"
/// <summary>
/// 读取多个变量
/// </summary>
/// <param name="Nodes">读取的地址,格式为：块名.变量名</param>
/// <returns></returns>
public List <string> PLC_ReadValues(List <string> Nodes)
{
if (m_Connected)
{
int i = 0;
foreach (string str in Nodes)
{
Nodes[i] = _GetFormat(str);
i++;
}
return(m_Server.ReadValues(Nodes));
}
else
{
return(null);
}
}
/// <summary>
/// 读多个变量
/// </summary>
/// <param name="tag"></param>
/// <returns>返回状态为GOOD的变量</returns>
public IList <TagItem> Read(IList <TagItem> tag)
{
List <string> nodeids = new List <string>();
foreach (var item in tag)
{
nodeids.Add(item.GetNodeId());
}
List <string> values = uAClient.ReadValues(nodeids);
for (int i = 0; i < values.Count; i++)
{
tag[i].Value = values[i];
}
return(tag);
}
public List <string> ReadValues(List <String> nodeIdStrings)
{
return(myClientHelperAPI.ReadValues(nodeIdStrings));
}