private void sendBCD(uint address, uint value)
{
byte[] dataTx;
////////////// data link layer /////////////////////////////
DataLink_Header DL = new DataLink_Header();
DL.Control = new ControlByte(0xC4); // user data (unconfirm);
DL.Destination = 65535;
DL.Source = 1;
////////////// transport /////////////////////////////
Transport_Header TH = new Transport_Header(0xc0); // transport alway 0xc4 for master
///////////// Application Header /////////////////////////////
Application_Header AP = new Application_Header();
// Application Control
ApplicationControl AC = new ApplicationControl();
AC.FIN = true;
AC.FIR = true;
AC.SEQ = 0;
AP.ApplicationControl = AC;
AP.FunctionCode = 2; // Write Function = 2
//////////////////////////// Object ////////////////////////////////
//----------------------- Object Field---------------------------//
Object_Field[] OF = new Object_Field[1]; //have 1 object type
// Object Header //
Object_Header OH;
Qualifier Q;
ObjectData OD;
// Object Header 1 O:60 V:2
OH = new Object_Header();
OH.ObjectGroup = 101; //Object
OH.ObjectVariation = 2; // Var
Q = new Qualifier(0x17); // Qualifier Code = 0x17 fixed
OH.Qualifier = Q;
OH.Count = 1; // have 1 data object
OF[0] = new Object_Field();
OF[0].ObjectHeader = OH; // Object Header
OD = new ObjectData(); //Data
//Object Data
OD.ObjData = new O101V2(value);
OF[0].Obj = new ObjectData[1];
OD.address = address;
OF[0].Obj[0] = OD;
// move to application header class
AP.Object = OF;
////////////////////////// DNP /////////////////////////////
DNP_Frame dnpFrame = new DNP_Frame(DL, TH, AP);
dataTx = dnpFrame.ToRawData();
this.serialPort1.Write(dataTx, 0, dataTx.Length);
}
private void timer2_Tick(object sender, EventArgs e)
{
this.timer2.Enabled = false;
this.dataRx = this.inputBuffer.ToArray();
this.inputBuffer.Clear(); //clear Serial Port Rx Buffer
//check start bit for DNP
if ((dataRx[0] != 0x05) || (dataRx[1] != 0x64))
{
return;
}
//check CRC
if (CRC.dnpCheckCRC(dataRx) != true) // drop package if dnp check if fail
{
return;
}
//check length again (useless checking)
if (dataRx.Length < 10)
{
return;
}
if (dataRx.Length == 10)
{
//check acknowleage here
DataLink_Header DLHeader = new DataLink_Header(dataRx);
int masterAddress = Convert.ToInt32(this.textBox1.Text.ToString());
int rtuAddress = Convert.ToInt32(this.textBox2.Text.ToString());
//Acknowleage
if ((DLHeader.Source == rtuAddress) && (DLHeader.Destination == masterAddress) && (DLHeader.Control.f_code == 0))
{
this.timer1.Stop();
System.Threading.Thread.Sleep(200);
uploadState = (byte)State.masterAddress;
toolStripStatusLabel1.Text = "Connection : Success";
MessageBox.Show("Test Connection : Success" + Environment.NewLine
+ " Master Address = " + masterAddress + Environment.NewLine
+ " RTU Address = " + rtuAddress
, "Test Connection", MessageBoxButtons.OK, MessageBoxIcon.Information);
toolStripStatusLabel2.Text = "";
//this.timer1.Stop();
this.serialPort1.Close();
this.button1.Enabled = true;
this.button2.Enabled = true;
this.toolStripComboBox1.Enabled = true;
this.textBox1.Enabled = true;
this.textBox2.Enabled = true;
this.textBox3.Enabled = true;
this.textBox4.Enabled = true;
}
return;
}
DNP_Frame responseDNP = new DNP_Frame(dataRx);
if (responseDNP.applicationHeader.FunctionCode == 129) //check response function
{
//progress bar
try
{
this.toolStripProgressBar1.Value += 12;
}
catch
{
this.toolStripProgressBar1.Value = 100;
}
//next state
if (uploadState == (byte)State.masterAddress)
{
this.timer1.Stop();
uint rtuAddress = Convert.ToUInt32(this.textBox2.Text.ToString());
uploadState = (byte)State.rtuAddress;
//sendBCD
System.Threading.Thread.Sleep(200);
try
{
this.sendBCD(2, rtuAddress);
}
catch { }
//start timer
this.timer1.Interval = waitResponseInterval;
this.timer1.Start();
//progress bar
toolStripStatusLabel2.Text = "Writing RTU address";
this.toolStripProgressBar1.Value += 13;
}
else if (uploadState == (byte)State.rtuAddress)
{
this.timer1.Stop();
uint preDelay = Convert.ToUInt32(this.textBox3.Text.ToString());
uploadState = (byte)State.preDelay;
//sendBCD
System.Threading.Thread.Sleep(200);
try
{
this.sendBCD(3, preDelay);
}
catch { }
//start timer
this.timer1.Interval = waitResponseInterval;
this.timer1.Start();
//progress bar
toolStripStatusLabel2.Text = "Writing pre-delay time";
this.toolStripProgressBar1.Value += 13;
}
else if (uploadState == (byte)State.preDelay)
{
this.timer1.Stop();
uint postDelay = Convert.ToUInt32(this.textBox4.Text.ToString());
uploadState = (byte)State.postDelay;
//sendBCD
System.Threading.Thread.Sleep(200);
try
{
this.sendBCD(4, postDelay);
}
catch { }
//start timer
this.timer1.Interval = waitResponseInterval;
this.timer1.Start();
//progress bar
toolStripStatusLabel2.Text = "Writing post-delay time";
this.toolStripProgressBar1.Value += 13;
}
else if (uploadState == (byte)State.postDelay)
{
this.timer1.Stop();
uploadState = (byte)State.masterAddress;
toolStripStatusLabel1.Text = "Complete";
toolStripStatusLabel2.Text = "";
//this.timer1.Stop();
this.serialPort1.Close();
this.button1.Enabled = true;
this.button2.Enabled = true;
this.toolStripComboBox1.Enabled = true;
this.textBox1.Enabled = true;
this.textBox2.Enabled = true;
this.textBox3.Enabled = true;
this.textBox4.Enabled = true;
}
return;
}
}