private static PlcType GetPlcType(IPlc plc)
{
return(plc switch
{
ModbusPlc _ => PlcType.Modbus,
S7Plc _ => PlcType.S7,
_ => throw new ArgumentException($"Unsupported PLC {plc}.", nameof(plc))
});
public VariableViewModel CreateVariable(IPlc plc)
{
return(plc switch
{
S7Plc s7plc => new S7VariableViewModel(s7plc),
ModbusPlc modbusPlc => new ModbusVariableViewModel(modbusPlc),
_ => throw new NotImplementedException()
});
public async void DoIt()
{
// use DI here
IModulePocoFactory modulePocoFactory = new CpvModulePocoFactory();
// use DI here
IModuleBasedAddressConverter moduleBasedAddressConverter = new S7ModuleBasedAddressConverter();
// use DI here
S7PlcConfiguration s7PlcConfig = new S7PlcConfiguration
{
CpuType = "S71500",
IpAddress = "192.168.1.1",
Rack = 0,
Slot = 0,
UsePermanentConnection = true
};
// make your own IPlcFactory which creates the plc instance
// use the IPlcFactory interface for this
ModuleBasedPlc moduleBasedPlc = new S7Plc(
modulePocoFactory,
moduleBasedAddressConverter,
s7PlcConfig);
ModuleBasedAddress addressToRead = new ModuleBasedAddress("DB1.DBW0", MonitorDataPoco.DB_INDEX);
// this way you read by address
PlcReadResult readByAddressResult = await moduleBasedPlc.ReadAsync(new string[] { addressToRead.Address });
// this way you parse the measurement for a given address from a read result
object measurementByAddress = readByAddressResult.GetMeasurementForAddress(addressToRead.Address);
// this way you read by module poco
MonitorDataPoco readByModulePocoResult = await moduleBasedPlc.ReadAsync <MonitorDataPoco>(MonitorDataPoco.DB_INDEX);
// here you have the module poco and you
// cann access the measurments by address like this:
object measurmentByAddressFromModulePoco = readByModulePocoResult.GetValueByAddress(addressToRead);
// or simply by using the properties
short measurementByPropertyFromModulePoco = readByModulePocoResult.Value1;
}
