private void buttonStart_Click(object sender, EventArgs e)
{
bool bRet;
if (m_bStart) // was started
{
panelPID.Enabled = false;
m_bStart = false;
timer1.Enabled = false;
adamCom.CloseComPort();
buttonStart.Text = "Start";
}
else
{
if (adamCom.OpenComPort())
{
// set COM port state, 9600,N,8,1
adamCom.SetComPortState(Baudrate.Baud_9600, Databits.Eight, Parity.None, Stopbits.One);
// set COM port timeout
adamCom.SetComPortTimeout(500, 500, 0, 500, 0);
m_iCount = 0; // reset the reading counter
//
if (cbxLoop.SelectedIndex >= 0)
{
RefreshPIDValue();
}
else
{
// PID
m_loopBase = PID_Loop.Loop0;
if (m_AsciiProtocol)
{
bRet = (adamCom.Pid(m_iAddr).AsciiRefreshBuffer(PID_Loop.Loop0) && adamCom.Pid(m_iAddr).AsciiRefreshBuffer(PID_Loop.Loop1));
}
else
{
bRet = (adamCom.Pid(m_iAddr).ModbusRefreshBuffer(PID_Loop.Loop0) && adamCom.Pid(m_iAddr).ModbusRefreshBuffer(PID_Loop.Loop1));
}
if (bRet)
{
m_pv1LblHigh[0] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop0, PID_Addr.Sv1HighLimit);
m_pv1LblHigh[1] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop1, PID_Addr.Sv1HighLimit);
m_pv1LblLow[0] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop0, PID_Addr.Sv1LowLimit);
m_pv1LblLow[1] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop1, PID_Addr.Sv1LowLimit);
m_pv2LblHigh[0] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop0, PID_Addr.Sv2HighLimit);
m_pv2LblHigh[1] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop1, PID_Addr.Sv2HighLimit);
m_pv2LblLow[0] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop0, PID_Addr.Sv2LowLimit);
m_pv2LblLow[1] = adamCom.Pid(m_iAddr).GetBufferFloat(PID_Loop.Loop1, PID_Addr.Sv2LowLimit);
RefreshPIDStatic();
}
else
{
MessageBox.Show("Failed to refresh data!", "Error");
adamCom.CloseComPort();
return;
}
}
//
panelPID.Enabled = true;
timer1.Enabled = true; // enable timer
buttonStart.Text = "Stop";
m_bStart = true; // starting flag
}
else
{
MessageBox.Show("Failed to open COM port!", "Error");
}
}
}