// ------------------------------------------------------------------------
// Quitt application
private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
{
if (BRmaster != null)
{
BRmaster = null;
}
Application.Exit();
}
// ------------------------------------------------------------------------
// Module information prototype
internal MasterBR_MDinfo(MasterBR _BRmaster, byte _mod_nr)
{
BRmaster = _BRmaster;
mod_nr = _mod_nr;
_id = (ushort)BRmaster.SyncReadWord(MasterBR.ID_parameter, Convert.ToUInt16(0xA001 + mod_nr * 16));
_name = Get_HardwareName(_id);
_analog_in_index = (ushort)BRmaster.SyncReadWord(MasterBR.ID_parameter, Convert.ToUInt16(0xA004 + mod_nr * 16));
_analog_out_index = (ushort)BRmaster.SyncReadWord(MasterBR.ID_parameter, Convert.ToUInt16(0xA005 + mod_nr * 16));
_digital_in_index = (ushort)BRmaster.SyncReadWord(MasterBR.ID_parameter, Convert.ToUInt16(0xA006 + mod_nr * 16));
_digital_out_index = (ushort)BRmaster.SyncReadWord(MasterBR.ID_parameter, Convert.ToUInt16(0xA007 + mod_nr * 16));
}
// ------------------------------------------------------------------------
// Disconnect from bus coupler
private void DoDisconnect()
{
if (BRmaster != null)
{
BRmaster.Disconnect();
BRmaster = null;
}
btnConnect.Text = "Connect";
btnConnect.Image = imageList1.Images[1];
btnBusCoupler.BackColor = Color.Gainsboro;
btnBusCoupler.Enabled = false;
btnModules.Enabled = false;
btnModules.BackColor = Color.Gainsboro;
grpModules.Visible = false;
grpBusCoupler.Visible = false;
RefreshTimer.Enabled = false;
}
// ------------------------------------------------------------------------
// Information class prototype.
internal MasterBR_BCinfo(MasterBR _BRmaster)
{
BRmaster = _BRmaster;
}
// ------------------------------------------------------------------------
// Open or close connection to bus coupler
private void btnConnect_Click(object sender, EventArgs e)
{
// ------------------------------------------------------------------------
// Close connection to bus coupler
if (btnConnect.Text == "Connected")
{
DoDisconnect();
}
// ------------------------------------------------------------------------
// Open connection to bus coupler
else
{
try
{
btnConnect.Text = "Connecting...";
btnConnect.Refresh();
// Create new master instance, add events and reset watchdog
BRmaster = new ModbusTCPBR.MasterBR();
BRmaster.OnBCexception += new ModbusTCPBR.MasterBR.BCexception(BRmaster_OnBCexception);
BRmaster.PollRefresh = 200;
BRmaster.Connect(txtIP.Text, 502);
BRmaster.BCinfo.watchdog_reset();
BRmaster.BCinfo.watchdog_threshold = 5000;
ReadControllerInfo(true);
// Set up buttons and tabs
btnConnect.Image = imageList1.Images[0];
btnConnect.Text = "Connected";
btnBusCoupler.Enabled = true;
btnModules.Enabled = true;
btnModules_Click(null, null);
// Read module information and fill list box with data
lstModules.Items.Clear();
for (int x = 0; x <= BRmaster.MDinfo.GetUpperBound(0); x++)
{
if (BRmaster.MDinfo[x].name == "unknown")
{
lstModules.Items.Add("Module" + x.ToString());
}
else
{
lstModules.Items.Add(BRmaster.MDinfo[x].name);
}
}
if (lstModules.Items.Count >= 0)
{
lstModules.SelectedIndex = 0;
}
}
catch (SystemException error)
{
DoDisconnect();
// Catch message
if (error.GetType().ToString() == "System.Net.Sockets.SocketException")
{
MessageBox.Show("Check IP address or host name!", "Can't find X20BC0087 controller", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
MessageBox.Show(error.Message);
}
}
}
