/// <summary>
/// Change frequency to accomplish desired flow rate
/// </summary>
/// <param name="desiredFlowRate">Desired flow rate</param>
public static void freqConversion(object desiredFlowRateObj)
{
//convert obj into float
float desiredFlowRate = (float)desiredFlowRateObj;
//point variables
PointVal currentFlowValue;
PointVal currentFreqValue;
List <PointVal> freqList;
List <PointVal> flowList;
//Set up OSI PI
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//put current flow rate in a saved PI point
flowList = myPI.searchPiPoints("SP14VICE_Flow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFlowValue = flowList.ElementAt(0);
//Check if flow varies by +/- 1 GPM
while (float.Parse(currentFlowValue.value) > (desiredFlowRate + 1) || float.Parse(currentFlowValue.value) > (desiredFlowRate - 1))
{
//put current frequency in a saved PI point
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFreqValue = freqList.ElementAt(0);
//set new frequency
if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 5))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 10, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 5))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 10, 6));
}
else if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 2))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 5, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 2))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 5, 6));
}
else if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 1))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 2, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 1))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 2, 6));
}
Thread.Sleep(6000); // sleep 6 sec for flow rate to change
//put current flow rate in a saved PI point -- hopefully it changes in 8 sec
flowList = myPI.searchPiPoints("SP14VICE_Flow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFlowValue = flowList.ElementAt(0);
}
}
/// <summary>
/// Change frequency to accomplish desired flow rate
/// </summary>
/// <param name="desiredFlowRate">Desired flow rate</param>
public static void freqConversion(object desiredFlowRateObj)
{
//convert obj into float
float desiredFlowRate = (float)desiredFlowRateObj;
//point variables
PointVal currentFlowValue;
PointVal currentFreqValue;
List<PointVal> freqList;
List<PointVal> flowList;
//Set up OSI PI
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//put current flow rate in a saved PI point
flowList = myPI.searchPiPoints("SP14VICE_Flow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFlowValue = flowList.ElementAt(0);
//Check if flow varies by +/- 1 GPM
while (float.Parse(currentFlowValue.value) > (desiredFlowRate + 1) || float.Parse(currentFlowValue.value) > (desiredFlowRate - 1))
{
//put current frequency in a saved PI point
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFreqValue = freqList.ElementAt(0);
//set new frequency
if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 5))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 10, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 5))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 10, 6));
}
else if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 2))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 5, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 2))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 5, 6));
}
else if (float.Parse(currentFlowValue.value) > (desiredFlowRate + 1))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) + 2, 6));
}
else if (float.Parse(currentFlowValue.value) < (desiredFlowRate - 1))
{
myPI.setPiPointValue("SP14VICE_Freq", myTruncate(float.Parse(currentFreqValue.value) - 2, 6));
}
Thread.Sleep(6000); // sleep 6 sec for flow rate to change
//put current flow rate in a saved PI point -- hopefully it changes in 8 sec
flowList = myPI.searchPiPoints("SP14VICE_Flow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFlowValue = flowList.ElementAt(0);
}
}
/// <summary>
/// Read incoming data and send ACK
/// </summary>
/// <param name="ar"></param>
public static void ReadCallback(IAsyncResult ar)
{
String content = String.Empty;
_IpTest = new DataMGT();
_myPI = new OSIPI();
Console.WriteLine("In ReadCallBack...");
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
// Read data from the client socket.
int bytesRead = handler.EndReceive(ar);
if (bytesRead > 0)
{
Console.WriteLine("Bytes>0...");
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
// Check for end-of-file tag. If it is not there, read
// more data.
content = state.sb.ToString();
string msg1 = "<ACK>";
string msg2 = "<,RT=0,RB=0,TM=1,>";
if (content.IndexOf("<EOF>") > -1)
{
// All the data has been read from the
DateTime time = DateTime.Now; // Use current time
string format = "MMM ddd d HH:mm yyyy"; // Use this format
Console.WriteLine(time.ToString(format));
Console.WriteLine("Read {0} bytes from socket. \n Data : {1}", content.Length, content);
// Echo the data back to the client
try
{
_IpTest.gotString(content);
}
catch (Exception ex)
{
Console.WriteLine("IPTest Error: {0} \n", ex.Message);
}
Send(handler, msg1);
//Send(handler, content);
}
else
{
// Not all data received. Get more.
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state);
}
}
}
public static void ReadCallback(IAsyncResult ar)
{
String content = String.Empty;
_IpTest = new DataMGT();
_myPI = new OSIPI();
Console.WriteLine("In ReadCallBack...");
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
// Read data from the client socket.
int bytesRead = handler.EndReceive(ar);
if (bytesRead > 0)
{
Console.WriteLine("Bytes>0...");
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
// Check for end-of-file tag. If it is not there, read
// more data.
content = state.sb.ToString();
string msg1 = "<ACK>";
string msg2 = "<,RT=0,RB=0,TM=1,>";
if (content.IndexOf("<EOF>") > -1)
{
// All the data has been read from the
DateTime time = DateTime.Now; // Use current time
string format = "MMM ddd d HH:mm yyyy"; // Use this format
Console.WriteLine(time.ToString(format));
Console.WriteLine("Read {0} bytes from socket. \n Data : {1}", content.Length, content);
// Echo the data back to the client
try
{
_IpTest.gotString(content);
}
catch (Exception ex)
{
Console.WriteLine("IPTest Error: {0} \n",ex.Message);
}
Send(handler, msg1);
//Send(handler, content);
}
else
{
// Not all data received. Get more.
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state);
}
}
}
/// <summary>
/// Monitor PI points for changes
/// </summary>
/// <param name="ar"></param>
public static void osiReadCallback(IAsyncResult ar)
{
Console.WriteLine("In osiReadCallBack...");
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
/****Search current VFD State and Frequency PI values*****/
//initailize OSI PI and server
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//Create PI values and Lists for each
PointVal savedVfdState = null;
PointVal currentVfdState = null;
PointVal savedDesiredFlow = null;
PointVal currentDesiredFlow = null;
List <PointVal> vfdStateList;
List <PointVal> desiredFlowList;
bool firstRun = false;
if (myPI.check_connection())
{
//put VFD state, frequency, lock, and desired floe rate in a saved PI points
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
savedVfdState = currentVfdState = vfdStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
savedDesiredFlow = currentDesiredFlow = desiredFlowList.ElementAt(0);
}
while (true)
{
//get current OSI PI value for VFD, frequency, lock, and desire flow rate
if (myPI.check_connection())
{
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVfdState = vfdStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentDesiredFlow = desiredFlowList.ElementAt(0);
}
//check for first run to send initail DesiredFlow value
if (firstRun == false)
{
//Send to Rasp PI to initiate function to change flow via frequency
savedDesiredFlow = currentDesiredFlow;
osiSend(handler, "<,DF=" + savedDesiredFlow.value.ToString() + ",EOF,>");
firstRun = true;
}
//check if the OSI server value has changed for VfdState
if (currentVfdState.value != savedVfdState.value)
{
//send current value to Rasp PI
savedVfdState = currentVfdState;
osiSend(handler, "<,S=" + savedVfdState.value.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for desired flow rate
if (currentDesiredFlow.value != savedDesiredFlow.value)
{
//send current value to Rasp PI
savedDesiredFlow = currentDesiredFlow;
osiSend(handler, "<,DF=" + savedDesiredFlow.value.ToString() + ",EOF,>");
}
Thread.Sleep(5000); //sleep 5 sec then update
}
}
/// <summary>
/// Monitor PI points for changes
/// </summary>
/// <param name="ar"></param>
public static void osiReadCallback(IAsyncResult ar)
{
Console.WriteLine("In osiReadCallBack...");
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
/****Search current VFD State and Frequency PI values*****/
//initailize OSI PI and server
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//Create PI values and Lists for each
PointVal savedVfdState = null;
PointVal currentVfdState = null;
PointVal savedFreq = null;
PointVal currentFreq = null;
PointVal savedLockState = null;
PointVal currentLockState = null;
PointVal savedDesiredFlow = null;
PointVal currentDesiredFlow = null;
List<PointVal> vfdStateList;
List<PointVal> freqList;
List<PointVal> lockStateList;
List<PointVal> desiredFlowList;
bool firstRun = false;
if (myPI.check_connection())
{
//put VFD state, frequency, lock, and desired floe rate in a saved PI points
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
savedVfdState = currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
savedFreq = currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
savedLockState = currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
savedDesiredFlow = currentDesiredFlow = desiredFlowList.ElementAt(0);
}
while (true)
{
//get current OSI PI value for VFD, frequency, lock, and desire flow rate
if (myPI.check_connection())
{
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentDesiredFlow = desiredFlowList.ElementAt(0);
}
//check for first run to send initail DesiredFlow value
if (firstRun == false)
{
//Send to Rasp PI to initiate function to change flow via frequency
savedDesiredFlow = currentDesiredFlow;
osiSend(handler, "<,DF=" + savedDesiredFlow.value.ToString() + ",EOF,>");
firstRun = true;
}
//check if the OSI server value has changed for VfdState
if (currentVfdState.value != savedVfdState.value)
{
//send current value to Rasp PI
savedVfdState = currentVfdState;
osiSend(handler, "<,S=" + savedVfdState.value.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for frequency
if (currentFreq.value != savedFreq.value)
{
//send current value to Rasp PI
savedFreq = currentFreq;
osiSend(handler, "<,F=" + savedFreq.value.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for Lock
if (currentLockState.value != savedLockState.value)
{
//send current value to Rasp PI
savedLockState = currentLockState;
osiSend(handler, "<,S=" + savedLockState.value.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for desired flow rate
if (currentDesiredFlow.value != savedDesiredFlow.value)
{
//send current value to Rasp PI
savedDesiredFlow = currentDesiredFlow;
osiSend(handler, "<,DF=" + savedDesiredFlow.value.ToString() + ",EOF,>");
}
Thread.Sleep(5000); //sleep 5 sec then update
}
}
/// <summary>
/// Listen for changes in the OSI points and send changes to Rasp PI (VFD State, Flow, Lock, and Desired Flow Rate)
/// </summary>
public static void osiListen()
{
// Data buffer for incoming data.
byte[] bytes = new Byte[1024];
// Establish the local endpoint for the socket.
IPAddress ipAddress = IPAddress.Parse("192.168.144.144");
int port = 9700;
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and listen for incoming connections.
try
{
//listener.Connect(localEndPoint);
listener.Bind(localEndPoint);
listener.Listen(100);
while (true)
{
// Set the event to nonsignaled state.
allDone.Reset();
if (!listener.Poll(300, SelectMode.SelectRead))
{
Console.WriteLine("Dong Dong Dong");
}
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for Rasp PI connection...");
listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);
// Wait until a connection is made before continuing.
allDone.WaitOne();
Console.WriteLine("Rasp PI connected!!!!");
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
/****Search current VFD State and Frequency PI values*****/
//initailize OSI PI and server
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//Create PI values and Lists for each
PointVal savedVfdState = null;
PointVal currentVfdState = null;
PointVal savedFreq = null;
PointVal currentFreq = null;
PointVal savedLockState = null;
PointVal currentLockState = null;
PointVal savedDesiredFlow = null;
PointVal currentDesiredFlow = null;
List <PointVal> vfdStateList;
List <PointVal> freqList;
List <PointVal> lockStateList;
List <PointVal> desiredFlowList;
if (myPI.check_connection())
{
//put VFD state, frequency, lock, and desired floe rate in a saved PI points
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
savedVfdState = currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
savedFreq = currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
savedLockState = currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
savedDesiredFlow = currentDesiredFlow = desiredFlowList.ElementAt(0);
}
while (true)
{
//get current OSI PI value for VFD, frequency, lock, and desire flow rate
if (myPI.check_connection())
{
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentDesiredFlow = desiredFlowList.ElementAt(0);
}
//check if the OSI server value has changed for VfdState
if (currentVfdState.value != savedVfdState.value)
{
//send current value to Rasp PI
savedVfdState = currentVfdState;
Send(listener, "<,S=" + savedVfdState.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,S=" + savedVfdState.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for frequency
if (currentFreq.value != savedFreq.value)
{
//send current value to Rasp PI
savedFreq = currentFreq;
Send(listener, "<,F=" + savedFreq.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,F=" + savedFreq.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for Lock
if (currentLockState.value != savedLockState.value)
{
//send current value to Rasp PI
savedLockState = currentLockState;
Send(listener, "<,S=" + savedLockState.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,S=" + savedLockState.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for desired flow rate
if (currentLockState.value != savedLockState.value)
{
//Initiate function to change flow via frequency
savedDesiredFlow = currentDesiredFlow;
Thread changeFreq = new Thread(new ParameterizedThreadStart(freqConversion)); //thread to change frequency
changeFreq.Start(savedDesiredFlow.value); //start thread
}
Thread.Sleep(5000); //sleep 5 sec then update
}
}
/// <summary>
/// Listen for changes in the OSI points and send changes to Rasp PI (VFD State, Flow, Lock, and Desired Flow Rate)
/// </summary>
public static void osiListen()
{
// Data buffer for incoming data.
byte[] bytes = new Byte[1024];
// Establish the local endpoint for the socket.
IPAddress ipAddress = IPAddress.Parse("192.168.144.144");
int port = 9700;
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and listen for incoming connections.
try
{
//listener.Connect(localEndPoint);
listener.Bind(localEndPoint);
listener.Listen(100);
while (true)
{
// Set the event to nonsignaled state.
allDone.Reset();
if (!listener.Poll(300, SelectMode.SelectRead))
{
Console.WriteLine("Dong Dong Dong");
}
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for Rasp PI connection...");
listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);
// Wait until a connection is made before continuing.
allDone.WaitOne();
Console.WriteLine("Rasp PI connected!!!!");
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
/****Search current VFD State and Frequency PI values*****/
//initailize OSI PI and server
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
//Create PI values and Lists for each
PointVal savedVfdState = null;
PointVal currentVfdState = null;
PointVal savedFreq = null;
PointVal currentFreq = null;
PointVal savedLockState = null;
PointVal currentLockState = null;
PointVal savedDesiredFlow = null;
PointVal currentDesiredFlow = null;
List<PointVal> vfdStateList;
List<PointVal> freqList;
List<PointVal> lockStateList;
List<PointVal> desiredFlowList;
if (myPI.check_connection())
{
//put VFD state, frequency, lock, and desired floe rate in a saved PI points
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
savedVfdState = currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
savedFreq = currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
savedLockState = currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
savedDesiredFlow = currentDesiredFlow = desiredFlowList.ElementAt(0);
}
while(true)
{
//get current OSI PI value for VFD, frequency, lock, and desire flow rate
if (myPI.check_connection())
{
vfdStateList = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVfdState = vfdStateList.ElementAt(0);
freqList = myPI.searchPiPoints("SP14VICE_Freq", DateTime.Now.ToString(), DateTime.Now.ToString());
currentFreq = freqList.ElementAt(0);
lockStateList = myPI.searchPiPoints("SP14VICE_Lock", DateTime.Now.ToString(), DateTime.Now.ToString());
currentLockState = lockStateList.ElementAt(0);
desiredFlowList = myPI.searchPiPoints("SP14VICE_DesiredFlow", DateTime.Now.ToString(), DateTime.Now.ToString());
currentDesiredFlow = desiredFlowList.ElementAt(0);
}
//check if the OSI server value has changed for VfdState
if(currentVfdState.value != savedVfdState.value)
{
//send current value to Rasp PI
savedVfdState = currentVfdState;
Send(listener, "<,S=" + savedVfdState.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,S=" + savedVfdState.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for frequency
if (currentFreq.value != savedFreq.value)
{
//send current value to Rasp PI
savedFreq = currentFreq;
Send(listener, "<,F=" + savedFreq.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,F=" + savedFreq.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for Lock
if (currentLockState.value != savedLockState.value)
{
//send current value to Rasp PI
savedLockState = currentLockState;
Send(listener, "<,S=" + savedLockState.ToString() + ",EOF,>");
// PythonComm.sendTCP("192.168.144.126", 9750, "<,S=" + savedLockState.ToString() + ",EOF,>");
}
//check if the OSI server value has changed for desired flow rate
if (currentLockState.value != savedLockState.value)
{
//Initiate function to change flow via frequency
savedDesiredFlow = currentDesiredFlow;
Thread changeFreq = new Thread(new ParameterizedThreadStart(freqConversion)); //thread to change frequency
changeFreq.Start(savedDesiredFlow.value); //start thread
}
Thread.Sleep(5000); //sleep 5 sec then update
}
}
public static void osiListen()
{
// Data buffer for incoming data.
byte[] bytes = new Byte[1024];
// Establish the local endpoint for the socket.
IPAddress ipAddress = IPAddress.Parse("192.168.144.144");
int port = 9700;
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and listen for incoming connections.
try
{
//listener.Connect(localEndPoint);
listener.Bind(localEndPoint);
listener.Listen(100);
while (true)
{
// Set the event to nonsignaled state.
allDone.Reset();
if (!listener.Poll(300, SelectMode.SelectRead))
{
Console.WriteLine("Dong Dong Dong");
}
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for Rasp PI connection...");
listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);
// Wait until a connection is made before continuing.
allDone.WaitOne();
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
/****Search current VFD State PI value*****/
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
PointVal stateVal = null;
PointVal currentVal = null;
if (myPI.check_connection())
{
//put VFD state in a saved PI point
List <PointVal> vfdState = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
stateVal = vfdState.ElementAt(0);
}
while (true)
{
//get current OSI PI value for VFD
if (myPI.check_connection())
{
List <PointVal> vfdCurrentState = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVal = vfdCurrentState.ElementAt(0);
}
//check if the OSI server value has changed
if (currentVal != stateVal)
{
//send current value to Rasp PI
stateVal = currentVal;
Send(listener, "<,S=" + stateVal.ToString() + ",EOF,>");
}
Thread.Sleep(5000);
}
}
public static void osiListen()
{
// Data buffer for incoming data.
byte[] bytes = new Byte[1024];
// Establish the local endpoint for the socket.
IPAddress ipAddress = IPAddress.Parse("192.168.144.144");
int port = 9700;
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, port);
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Bind the socket to the local endpoint and listen for incoming connections.
try
{
//listener.Connect(localEndPoint);
listener.Bind(localEndPoint);
listener.Listen(100);
while (true)
{
// Set the event to nonsignaled state.
allDone.Reset();
if (!listener.Poll(300, SelectMode.SelectRead))
{
Console.WriteLine("Dong Dong Dong");
}
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for Rasp PI connection...");
listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);
// Wait until a connection is made before continuing.
allDone.WaitOne();
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
/****Search current VFD State PI value*****/
OSIPI myPI = new OSIPI();
myPI.connect_Server("ESMARTSERVER-PC");
PointVal stateVal = null;
PointVal currentVal = null;
if (myPI.check_connection())
{
//put VFD state in a saved PI point
List<PointVal> vfdState = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
stateVal = vfdState.ElementAt(0);
}
while(true)
{
//get current OSI PI value for VFD
if (myPI.check_connection())
{
List<PointVal> vfdCurrentState = myPI.searchPiPoints("SP14VICE_VfdState", DateTime.Now.ToString(), DateTime.Now.ToString());
currentVal = vfdCurrentState.ElementAt(0);
}
//check if the OSI server value has changed
if(currentVal != stateVal)
{
//send current value to Rasp PI
stateVal = currentVal;
Send(listener, "<,S=" + stateVal.ToString() + ",EOF,>");
}
Thread.Sleep(5000);
}
}
