private void btnApplySettings_Click(object sender, EventArgs e)
{
// Check for serial port connection first.
if (!modbusClient.Connected)
{
// Show error message
Debug.WriteLine("Submit of settings not possible. No connection to MODBUS.");
txtFetchError.Text = "You have to connect to serial port before you can fetch data!";
txtConnectState.Text = "MODBUS connected";
txtConnectState.BackColor = Color.Red;
return;
}
// TODO:
// - Check settings are valid:
if (false)
{
// Can't happen..
}
// - Stop all requests e.g. CYCLIC_READ
if (CYCLIC_READ)
{
CYCLIC_READ = false;
btnCyclicRead.Text = "Start Cyclic Read";
btnCyclicRead.BackColor = Color.Plum;
btnRead1.Enabled = true;
}
// - Clear displayed data
// clearData();
// - Read input fields and write settings to MODBUS holding registers
try
{
int[] values = new int[5]; // { 1, 2, 3, 4, 5 };
values[0] = cbbModeSelect.SelectedIndex;
int.TryParse(cbbNumBats.Text, out values[1]);
int.TryParse(cbbNumBatCells.Text, out values[2]);
if (cbbActiveBat.SelectedIndex >= 0)
{
int.TryParse(cbbActiveBat.Text, out values[3]);
}
else
{
values[3] = 0;
}
if (cbbChrgBat.SelectedIndex >= 1)
{
int.TryParse(cbbChrgBat.Text, out values[4]);
values[4] += 4;
}
else if (cbbChrgBat.SelectedIndex == 0)
{
values[4] = 0xBABE;
}
else
{
values[4] = 0xBABE;
}
Debug.WriteLine(values[0]);
Debug.WriteLine(values[1]);
Debug.WriteLine(values[2]);
Debug.WriteLine(values[3]);
Debug.WriteLine(values[4]);
// Fetch server response
modbusClient.WriteMultipleRegisters(HOLDING_REG_START - 1, values);
Debug.WriteLine("Wrote HOLDING REGISTER values to Server");
}
catch (Exception exc)
{
Debug.WriteLine("Exception Writing HOLDING to Server.");
}
// Update "Current Settings" on successful response.
inputRegToGUI();
/*try
* {
* // Fetch server response
* int[] serverResponse = modbusClient.ReadHoldingRegisters(HOLDING_REG_START - 1, HOLDING_REG_NUM_REGS);
*
* Debug.WriteLine("Read DEFAULT-settings from holding registers");
* for(int i=0; i<serverResponse.Length; i++)
* {
* Debug.WriteLine(serverResponse[i]);
* }
*
* updateCurrentSettings(serverResponse);
* }
* catch (Exception exc)
* {
* Debug.WriteLine("Exception Reading HOLDING from Server.");
*
* }*/
}