public Plc(string Adrress, S7Type Plc)
{
PlcType = Plc;
switch (Plc)
{
case S7Type.S7300:
SetPlc(Adrress, 0, 2);
break;
case S7Type.S7400:
case S7Type.S71200:
case S7Type.S71500:
SetPlc(Adrress, 0, 0);
break;
}
}
private Boolean Test()
{
Boolean res = false;
Ping pinger = null;
try
{
if (!string.IsNullOrEmpty(txt_ip.Text))
{
pinger = new Ping();
PingReply reply = pinger.Send(txt_ip.Text, 3000);
if (reply.Status == IPStatus.Success)
{
string msg = "PLC is reachable";
S7Type type = S7Type.S7300;
switch (combo_typ.SelectedValue)
{
case "s7-300":
type = S7Type.S7300;
break;
case "s7-400":
type = S7Type.S7400;
break;
case "s7-1200":
type = S7Type.S71200;
break;
case "s7-1500":
type = S7Type.S71500;
break;
}
Plc plc = null;
try
{
plc = new Plc(txt_ip.Text, type);
plc.Connect();
if (plc.Connected)
{
msg += "\r\nPLC connection is ok";
res = true;
}
else
{
msg += "\r\nUnable to connect to PLC";
MessageBox.Show(msg, "PLC connection error", MessageBoxButtons.OK, MessageBoxIcon.Error);
res = false;
}
}
catch (Exception ex0)
{
msg += "\r\nPLC connection exception\r\n " + ex0.Message;
MessageBox.Show(msg, "PLC connection error", MessageBoxButtons.OK, MessageBoxIcon.Error);
res = false;
}
finally
{
plc.Disconnect();
plc = null;
}
}
else
{
MessageBox.Show("PLC unreachable", "PLC connection error", MessageBoxButtons.OK, MessageBoxIcon.Error);
res = false;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "PLC connection exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
res = false;
}
finally
{
if (pinger != null)
{
pinger.Dispose();
}
}
return(res);
}
