/// <summary>
/// Performs actions when starting a communication line.
/// </summary>
public override void OnCommLineStart()
{
opcDeviceConfig = new OpcDeviceConfig();
if (opcDeviceConfig.Load(Storage, OpcDeviceConfig.GetFileName(DeviceNum), out string errMsg))
{
InitCmdMaps();
}
else
{
opcDeviceConfig = null;
Log.WriteLine(errMsg);
Log.WriteLine(Locale.IsRussian ?
"Взаимодействие с OPC-сервером невозможно, т.к. конфигурация устройства не загружена" :
"Interaction with OPC server is impossible because device configuration is not loaded");
}
}
/// <summary>
/// Gets the channel prototypes for the device.
/// </summary>
public override ICollection <CnlPrototype> GetCnlPrototypes()
{
OpcDeviceConfig opcDeviceConfig = new();
if (!opcDeviceConfig.Load(Path.Combine(AppDirs.ConfigDir, OpcDeviceConfig.GetFileName(DeviceNum)),
out string errMsg))
{
throw new ScadaException(errMsg);
}
// create channels for subscriptions
List <CnlPrototype> cnlPrototypes = new();
int tagNum = 1;
int eventMask = new EventMask {
Enabled = true, StatusChange = true, Command = true
}.Value;
int cmdEventMask = new EventMask {
Enabled = true, Command = true
}.Value;
foreach (SubscriptionConfig subscriptionConfig in opcDeviceConfig.Subscriptions)
{
foreach (ItemConfig itemConfig in subscriptionConfig.Items)
{
CnlPrototype cnl = new()
{
Active = itemConfig.Active,
Name = itemConfig.DisplayName,
CnlTypeID = CnlTypeID.InputOutput,
TagNum = string.IsNullOrEmpty(itemConfig.TagCode) ? tagNum : null,
TagCode = itemConfig.TagCode,
EventMask = eventMask
};
if (itemConfig.IsString)
{
cnl.DataTypeID = DataTypeID.Unicode;
cnl.DataLen = DriverUtils.GetTagDataLength(itemConfig.DataLength);
cnl.FormatCode = FormatCode.String;
}
else if (itemConfig.IsArray)
{
cnl.DataLen = itemConfig.DataLength;
}
if (DriverUtils.DataTypeEquals(itemConfig.DataTypeName, typeof(DateTime)))
{
cnl.FormatCode = FormatCode.DateTime;
}
cnlPrototypes.Add(cnl);
tagNum++;
}
}
// create channels for commands
foreach (CommandConfig commandConfig in opcDeviceConfig.Commands)
{
CnlPrototype cnl = new()
{
Name = commandConfig.DisplayName,
CnlTypeID = CnlTypeID.Output,
TagNum = string.IsNullOrEmpty(commandConfig.CmdCode) ? commandConfig.CmdNum : null,
TagCode = commandConfig.CmdCode,
EventMask = cmdEventMask
};
if (commandConfig.IsMethod)
{
cnl.FormatCode = FormatCode.Execute;
}
else if (DriverUtils.DataTypeEquals(commandConfig.DataTypeName, typeof(string)))
{
cnl.FormatCode = FormatCode.String;
}
else if (DriverUtils.DataTypeEquals(commandConfig.DataTypeName, typeof(DateTime)))
{
cnl.FormatCode = FormatCode.DateTime;
}
cnlPrototypes.Add(cnl);
}
return(cnlPrototypes);
}
}
}