private void AddLogLine(string txt)
{
try
{
if (string.IsNullOrEmpty(txt))
{
return;
}
if (EventsLog.Lines.Count() >= 13)
{
this.SuspendLayout();
var lines = new string[13];
for (int i = 1; i < EventsLog.Lines.Count(); i++)
{
lines[i - 1] = EventsLog.Lines[i];
}
lines[EventsLog.Lines.Count() - 1] = txt;
EventsLog.Clear();
EventsLog.Lines = lines;
this.ResumeLayout();
}
else
{
EventsLog.AppendText(txt + Environment.NewLine);
}
}
catch
{
}
}
private void LogTimer_Tick(object sender, EventArgs e)
{
// For event logging this method (a timer and PickEvent) is better than
// the events callback used into the Server console demo.
// Here we are using the internal Server message queue without
// disturbing the client handshake.
while (Server.PickEvent(ref Event))
{
if (EventsLog.Lines.Count() > 256)
{
EventsLog.Clear();
}
EventsLog.AppendText(Server.EventText(ref Event) + "\n");
// Example of how use the parameters inside the event struct.
// Here we check if our DB were changed and, if yes, update the
// related textbox.
// if ((Event.EvtCode == S7Server.evcDataWrite) && // write event
// (Event.EvtRetCode == 0) && // succesfully
// (Event.EvtParam1 == S7Server.S7AreaDB)) // it's a DB
if ((Event.EvtCode == S7Server.evcDataWrite) && // write event
(Event.EvtRetCode == 0))
{
switch (Event.EvtParam2)
{
case 1: HexDump(DB1_Box, DB1, DB1.Length);
break;
case 2: HexDump(DB2_Box, DB2, DB2.Length);
break;
case 3: HexDump(DB3_Box, DB3, DB3.Length);
break;
}
}
}
}