Master Secret in eine PLC laden - TIAPortal

internal bool DownloadDevice(DeviceItem deviceItem)

{

try

{

//Download software and hardware components to a device via DownloadProvider service that

//can be acquired from a given DeviceItem. If a DeviceItem represents a download able

//target an instance of DownloadProvider will be returned on GetService call. Otherwise

//it will be null.

DownloadProvider myDownloadProvider = deviceItem.GetService<DownloadProvider>();

if (myDownloadProvider == null)

{

return false;

}

//Preparation for IConfigurable object to establish a connection to the device. IConfiguration

//interface is implemented by ConfigurationAddress and ConfigurationTargetInterface. Both

//objects can be accessed via ConnectionConfiguration instance. ConnectionConfiguration

//instance can be acquired from DownloadProvider.Configuration

ConnectionConfiguration connConfiguration = myDownloadProvider.Configuration;

ConfigurationMode confMode = connConfiguration.Modes.Find("PN/IE");

ConfigurationPcInterface pcInterface = ("Intel(R) Ethernet Connection I217-LM", 1);

ConsoleOutput.PrintInterfaces(connConfiguration);

//In order to execute a download to a device, Download method of DownloadProvider have to

//be called. The parameters are an IConfiguration object, two delegates and DownloadOptions

// (Hardware, Software or Hardware and Software).

IConfiguration targetConfiguration = pcInterface.TargetInterfaces[0];

DownloadConfigurationDelegate preDownloadConfigurationDelegate = PreConfigureDownload;

DownloadConfigurationDelegate postDownloadConfigurationDelegate = PostConfigureDownload; DownloadOptions downloadOptions = DownloadOptions.Hardware | DownloadOptions.Software;

// Apply the the configuration and start the download myDownloadProvider.Configuration.ApplyConfiguration(pcInterface.TargetInterfaces.First());

var downLoadResult = myDownloadProvider.Download(targetConfiguration, preDownloadConfigurationDelegate,

postDownloadConfigurationDelegate, downloadOptions);

return downLoadResult != null && downLoadResult.State != DownloadResultState.Error;

}

catch (EngineeringTargetInvocationException ex)

{

//Exception catch-ed on purpose. Client can write own code to handle the exception

//In case of PLC Master Secret exception will be thrown if:

// 1) If a different Master Secret has already been set in the PLC.

//Exception Message: An error has occurred during download: 'A different Master Secret

//has already been set. The PLC has to be reset!

//Possibly provide custom exception handling here

Console.WriteLine("An exception during download was thrown:");

Console.WriteLine(ex.DetailMessageData);

return false;

}

}

private static void PreConfigureDownload(DownloadConfiguration downloadConfiguration)

{... ... ... ... ...

// Set the PLC Master Secret password configured in the offline project's PLC,

// when the password was never set in the real PLC

if (downloadConfiguration is PlcMasterSecretPassword plcMasterSecret)

{

// Get the PLC Master Secret password from a secure location

SecureString plcMasterSecretPsw = ...;

plcMasterSecret.SetPassword(plcMasterSecretPsw);

return;

}

catch (EngineeringTargetInvocationException ex)

{

// Exception catch-ed on purpose. Client can write own code to handle the exception

// Exception will be thrown if:

// 1) plcMasterSecret password is null.

// Exception Message: The argument "password" may not be null

// 2) plcMasterSecret password is an empty string.

// Exception Message: The password provided is invalid

// 3) plcMasterSecret password is wrong.

// Exception Message: The password provided is invalid

// Possibly provide custom exception handling here

Console.WriteLine("PlcMasterSecretPassword has thrown an exception:");

Console.WriteLine(ex.DetailMessageData);

return;

}

}

... ... ... ... ...

throw new NotSupportedException();

// Exception thrown in the delagate will cancel download

}