private void buttonSendData_Click(object sender, EventArgs e)
{
if (Global.MainPlc != null) // Plc variable has been initialized
{
if (Global.MainPlc.IsConnected) // if connection with PLC has been established
{
byte[] sendData = PrepareDataToSend(); // prepare and save data to send
ErrorCode _error = Global.MainPlc.WriteBytes(DataType.DataBlock, 30, 0, sendData); // send data
if (_error == ErrorCode.NoError)
{
var form = new popupPlcConnection("Data sent succesfully", "", true);
form.Show();
}
else
{
var form = new popupPlcConnection("Data haven't been sent", $"Encountered difficulty:\n{_error}", false);
form.Show();
}
}
}
else
{
var form = new popupPlcConnection("Data haven't been sent", "PLC isn't connected!", false);
form.Show();
}
}
private void buttonSendString_Click(object sender, EventArgs e)
{
if (reader != null) // XML file isn't empty
{
// send data to PLC
ErrorCode _e1 = prepareData(reader.fileInfo.Production_area, 270);
ErrorCode _e2 = prepareData(reader.fileInfo.Machine_type, 526);
ErrorCode _e3 = prepareData(reader.fileInfo.Machine_type_id, 782);
ErrorCode _e4 = prepareData(reader.fileInfo.Version, 1038);
ErrorCode _e5 = prepareData(reader.fileInfo.Environment_version, 1294);
ErrorCode _e6 = prepareData(reader.fileInfo.Timestamp, 1550);
// data sent succesfully
if (_e1 == ErrorCode.NoError && _e2 == ErrorCode.NoError && _e3 == ErrorCode.NoError &&
_e4 == ErrorCode.NoError && _e5 == ErrorCode.NoError && _e6 == ErrorCode.NoError)
{
var form = new popupPlcConnection("Data sent succesfully", "", true);
form.Show();
}
// an error ocurred while sending any if the string
else
{
var form = new popupPlcConnection("Error occured while sending data", "", false);
form.Show();
}
}
// XML file is empty or hasn't been read - send empty strings
else
{
ErrorCode _e1 = prepareData("", 270);
ErrorCode _e2 = prepareData("", 526);
ErrorCode _e3 = prepareData("", 782);
ErrorCode _e4 = prepareData("", 1038);
ErrorCode _e5 = prepareData("", 1294);
ErrorCode _e6 = prepareData("", 1550);
// data sent succesfully
if (_e1 == ErrorCode.NoError && _e2 == ErrorCode.NoError && _e3 == ErrorCode.NoError &&
_e4 == ErrorCode.NoError && _e5 == ErrorCode.NoError && _e6 == ErrorCode.NoError)
{
var form = new popupPlcConnection("Data sent succesfully", "", true);
form.Show();
}
// an error ocurred while sending any if the string
else
{
var form = new popupPlcConnection("Error occured while sending data", "Check conncetion with the PLC", false);
form.Show();
}
}
}
private void buttonSendString_Click(object sender, EventArgs e)
{
string _str = textBoxOutputString.Text; // take save string to variable
byte[] _bytes = S7.Net.Types.String.ToByteArray(_str); // convert string to byte[] array
byte max_len = (byte)100; // max legth of string
byte actual_len = (byte)_str.Length; // actual length of sent string
List <byte> Message = new List <byte>(); // create list of bytes
Message.Add(max_len); //
Message.Add(actual_len); //
Message.AddRange(_bytes); //
if (Global.MainPlc != null) // Plc variable has been initialized
{
if (Global.MainPlc.IsConnected) // Connection with PLC has been established
{
ErrorCode _error = Global.MainPlc.WriteBytes(DataType.DataBlock, 30, 14, Message.ToArray()); // send data
if (_error == ErrorCode.NoError)
{
var form = new popupPlcConnection("Data sent succesfully", "", true);
form.Show();
}
else
{
var form = new popupPlcConnection("Data haven't been sent", $"Encountered difficulty:\n{_error}", false);
form.Show();
}
}
}
else
{
var form = new popupPlcConnection("Data haven't been sent", $"PLC isn't connected!", false);
form.Show();
}
}
private void buttonConnectWithPlc_Click(object sender, EventArgs e)
{
// auxiliary boolean variables
// if all are true then connection can be established
bool bIP = true, bRack = true, bSlot = true;
/// choose PLC S71200 if nothing has been chosen
CpuType type;
if (comboBoxPlcType.SelectedItem != null) // if type of PLC has been selected
{
type = (CpuType)comboBoxPlcType.SelectedItem; // save chosen type to variable
}
else
{
// if type of PLC has been selected
comboBoxPlcType.SelectedItem = S7.Net.CpuType.S71200; // Select PLC S71200
type = (CpuType)comboBoxPlcType.SelectedItem; // save chosen type to variable
}
string ipNumber = ""; // stores combined IP number
// checking if wrong IP number has been typed
if (textBoxIpFirst.Text == "" || textBoxIpSecond.Text == "" || textBoxIpThird.Text == "" || textBoxIpFourth.Text == "")
{
bIP = false;
}
else // if IP has been typed correctly
{
ipNumber = textBoxIpFirst.Text + "." + textBoxIpSecond.Text + "." + textBoxIpThird.Text + "." + textBoxIpFourth.Text;
bIP = true;
}
// if rack number has not been typed correctly
int number;
bool result = Int32.TryParse(textBoxRack.Text, out number);
if (textBoxRack.Text == "" || result == false || number < 0)
{
bRack = false;
}
// if rack number has not been typed correctly
result = Int32.TryParse(textBoxSlot.Text, out number);
if (textBoxSlot.Text == "" || result == false || number < 0)
{
bSlot = false;
}
// if everything is OK
if (bIP && bRack && bSlot)
{
// initialize Plc variable
Global.MainPlc = new Plc(type, ipNumber, Int16.Parse(textBoxRack.Text), Int16.Parse(textBoxSlot.Text));
ErrorCode _error = Global.MainPlc.Open(); // open connection with physical PLC
if (_error == ErrorCode.NoError) // if connection with PLC has been established
{
// create and show a form saying that the connection has been established succesfully
var form = new popupPlcConnection("Conncetion with PLC established succesfully", "", true);
form.Show();
}
else
{
// create and show a form saying that the connection hasn't been established
var form = new popupPlcConnection("Conncetion with PLC hasn't been established", "Check for errors in connection or typed parameters!", false);
form.Show();
}
}
else // if a piece of data has been typed incorrectly
{
// Create message
string msgHeader = "Wrong input values!";
string msgBody = "";
if (bIP == false)
{
msgBody += "Assigned IP number is wrong!\n";
}
if (bRack == false)
{
msgBody += "Assigned rack number is wrong!\n";
}
if (bSlot == false)
{
msgBody += "Assigned slot number is wrong!";
}
// create and show a form saying that the connection hasn't been established
// because sth went wrong
var form = new popupPlcConnection(msgHeader, msgBody, false);
form.Show();
}
}
private void buttonSendToPlc_Click(object sender, EventArgs e)
{
if (reader != null && Global.MainPlc != null)
{
if (reader.symbolicPoints.symbolic_points_list.Count() == 0)
{
var form = new popupPlcConnection("XML File has no symbolic points", "", false);
form.Show();
}
else
{
// send amount of symbolic points
short count = (short)reader.symbolicPoints.symbolic_points_list.Count();
// converting integer to byte[] array and reversing order (S7 uses different notation)
byte[] _byte = BitConverter.GetBytes(count);
Array.Reverse(_byte);
ErrorCode _error = Global.MainPlc.WriteBytes(DataType.DataBlock, 31, 0, _byte); // send data
if (_error == ErrorCode.NoError)
{
int DBindex = 2;
bool break_loop = false;
for (int i = 0; i < reader.symbolicPoints.symbolic_points_list.Count(); i++)
{
ErrorCode err1 = prepareData(reader.symbolicPoints.symbolic_points_list[i].Icon_type, DBindex);
ErrorCode err2 = prepareData(reader.symbolicPoints.symbolic_points_list[i].Id, DBindex + 10);
DBindex += 20;
if (err1 != ErrorCode.NoError || err2 != ErrorCode.NoError)
{
break_loop = true;
break;
}
}
if (break_loop)
{
var form = new popupPlcConnection("Error occured while sending data", $"{(reader.symbolicPoints.symbolic_points_list.Count()-2)/20} of {reader.symbolicPoints.symbolic_points_list.Count()} Symbolic Points have been sent", false);
form.Show();
}
else
{
var form = new popupPlcConnection("Data sent succesfully", "", true);
form.Show();
}
}
else
{
var form = new popupPlcConnection("Data haven't been sent", $"Encountered difficulty:\n{_error}", false);
form.Show();
}
}
}
else if (reader == null)
{
var form = new popupPlcConnection("An XML file hasn't been uploaded", "Uplad an XML File", false);
form.Show();
}
else if (Global.MainPlc == null)
{
var form = new popupPlcConnection("PLC isn't connected", "", false);
form.Show();
}
}
