private void ExecuteS7ConnectionTest(int identity)
{
//get tested connection
S7ConnectionModel connection = GetS7ConnectionModel(identity);
//create connection testing class object
S7ConnectionChecker checker = new S7ConnectionChecker();
//check connection
(bool success, string error) = checker.CheckConnection(connection.IPaddress, (short)connection.Rack, (short)connection.Slot);
//in case of failure
if (!success)
{
//write event to DB
SystemEventCreator eventCreator = new SystemEventCreator(_realmProvider);
eventCreator.SaveNewEvent(SystemEventTypeEnum.ConnectionTest, $"Connection test to S7 CPU with IP: {connection.IPaddress}, rack: {connection.Rack}, slot: {connection.Slot}; failed.");
MessageBox.Show($"Connection test failed. {error}.", "Warning", MessageBoxButton.OK, MessageBoxImage.Warning);
}
else //success
{
SuccessConnectionDataReaded(checker);
//write event to DB
SystemEventCreator eventCreator = new SystemEventCreator(_realmProvider);
eventCreator.SaveNewEvent(SystemEventTypeEnum.ConnectionTest, $"Connection test to S7 CPU with IP: {connection.IPaddress}, rack: {connection.Rack}, slot: {connection.Slot}; successfull.");
}
}
private void CheckingIfConnectionIsOK()
{
//find incorrect connections
foreach (var item in _activeS7Connections)
{
bool connectionOK;
try
{
S7ConnectionChecker checker = new S7ConnectionChecker();
(bool ok, string error) = checker.CheckConnection($"{item.FirstOctet}.{item.SecondOctet}.{item.ThirdOctet}.{item.FourthOctet}",
(short)item.Rack, (short)item.Slot);
if (!ok)
{
SystemEventCreator creator = new SystemEventCreator(_realmProvider);
creator.SaveNewEvent(SystemEventTypeEnum.S7PLCconnectionFailure, $"Failed to connect to PLC with IP address: " +
$"{item.FirstOctet}.{item.SecondOctet}.{item.ThirdOctet}.{item.FourthOctet}, Rack: {item.Rack}, Slot: {item.Slot}; during runtime.");
}
connectionOK = ok;
}
catch (Exception ex)
{
var logger = NLog.LogManager.GetCurrentClassLogger();
logger.Error($"Error while trying to check communication status. Error: {ex.Message}.");
connectionOK = false;
}
_plcConnectionOK.Add(connectionOK);
}
}
private void SuccessConnectionDataReaded(S7ConnectionChecker checker)
{
string cpuInfo = checker.GetCPUInfo();
string cpuDateAndTime = checker.GetCPUDateAndTime();
string message = $"Connection test successfull.\n\nCPU info:\n{cpuInfo}\n\nCPU date and time:\n{cpuDateAndTime}.";
MessageBox.Show(message, "Information", MessageBoxButton.OK, MessageBoxImage.Information);
}
