private void buttonTrue_Click(object sender, RoutedEventArgs e)
{
using (var client = new TwinCAT.Ads.TcAdsClient())
{
client.Connect(851);
// creates a stream with a length of 4 byte
AdsStream ds = new AdsStream(4);
BinaryReader br = new BinaryReader(ds);
// reads a DINT from PLC
client.Read(0x4020, 0x0001, ds);
ds.Position = 0;
label1.Content = br.ReadInt32().ToString();
//client.WriteSymbol("MyGVL.MyBoolVar", true, reloadSymbolInfo: true);
client.WriteSymbol("P_Motion2.ati_xStart", true, reloadSymbolInfo: true);
client.Dispose();
}
}
public static tcFunctionResult tcReadAll()
{
if (!tcClient.IsConnected)
{
return(tcFunctionResult.TC_NOT_CONNECTED);
}
for (int i = 0; i < tcVarList.Count; i++)
{
AdsStream tcDataStream = new AdsStream(tcVarList[i].DataSize);
AdsBinaryReader tcStreamReader = new AdsBinaryReader(tcDataStream);
try
{
tcClient.Read(tcVarList[i].Handle, tcDataStream);
}
catch (Exception ex)
{
LogMessage(string.Format("{0}\t: {1}", "Failed to read from device", ex.Message));
return(tcFunctionResult.TC_FAIL_TO_READ_DATA);
}
tcPlcVar buffer = tcVarList[i];
switch (tcVarList[i].VariableType.ToLower())
{
case "bool":
buffer.Data = tcStreamReader.ReadBoolean();
break;
case "arbool":
bool[] boolBuffer = new bool[buffer.Count];
for (int j = 0; j < boolBuffer.Length; j++)
{
boolBuffer[j] = tcStreamReader.ReadBoolean();
}
buffer.Data = (object)boolBuffer;
break;
case "int":
buffer.Data = tcStreamReader.ReadInt16();
break;
case "arint":
short[] shortBuffer = new short[buffer.Count];
for (int j = 0; j < shortBuffer.Length; j++)
{
shortBuffer[j] = tcStreamReader.ReadInt16();
}
buffer.Data = (object)shortBuffer;
break;
case "string":
buffer.Data = tcStreamReader.ReadPlcString(255);
break;
case "real":
buffer.Data = tcStreamReader.ReadSingle();
break;
case "lreal":
buffer.Data = tcStreamReader.ReadDouble();
break;
}
tcVarList[i] = buffer;
tcStreamReader.Close();
}
return(tcFunctionResult.TC_SUCCESS);
}
