public Tuple <ErrorCode, byte[]> getCoilsState(PLCInfo.CoilType coilType, int nCoilNumber, int nReadNumber)
{
string strType = coilType.ToString();
string strReadNumber = nReadNumber.ToString("D2");
string strCoilNumber = nCoilNumber.ToString("D4");
string strCmd = strReadNumber + strType + strCoilNumber;
byte[] baPLCAsciiRes = SendPLC(PLCInfo.FunctionID.ReadStatePoint, strCmd);
if (baPLCAsciiRes.Length > 0)
{
string strUsefulRes = Encoding.ASCII.GetString(baPLCAsciiRes);
// Suppose M0=1, M1=0, M2=1, M3=1, strUsefulRes= 01011
// Note: The first 0 is error code. and the rest bits are for M0~M3
byte[] baUsefulRes = decStringToDecByteArray(strUsefulRes);
byte[] baResult = (baUsefulRes[0] == 0) ? baUsefulRes.Skip(1).Take(baUsefulRes.GetLength(0) - 1).ToArray <byte>() : new byte[0];
return(Tuple.Create(myErrorCode(baUsefulRes[0]), baResult)); // first one is error code, the second rest are useful info.
}
else
{
return(Tuple.Create(ErrorCode.PLCSocketErr, new byte[0]));
}
}
public Tuple <byte, byte> getCoilState(PLCInfo.CoilType coilType, int nCoilNumber)
{
var result = getCoilsState(coilType, nCoilNumber, 1);
byte nErrorCode = result.Item1;
byte nCoilState = result.Item2[0];
return(Tuple.Create(nErrorCode, nCoilState)); // first one is error code, the second rest are useful info.
}
public void getCoilsStateAsync(Action <ErrorCode, byte[]> callbackFunc, PLCInfo.CoilType coilType, int nCoilNumber, int nReadNumber)
{
var t1 = Task.Factory.StartNew(() =>
{
var result = getCoilsState(coilType, nCoilNumber, nReadNumber);
ErrorCode errorCode = result.Item1;
byte[] baCoilState = result.Item2;
callbackFunc(errorCode, baCoilState);
});
}
public Tuple <ErrorCode, byte> getCoilState(PLCInfo.CoilType coilType, int nCoilNumber)
{
var result = getCoilsState(coilType, nCoilNumber, 1);
ErrorCode errorCode = result.Item1;
byte nCoilState;
if ((int)errorCode == 0)
{
nCoilState = result.Item2[0];
}
else
{
nCoilState = 0;
}
return(Tuple.Create(errorCode, nCoilState)); // first one is error code, the second rest are useful info.
}
public Tuple <byte, byte[]> getCoilsState(PLCInfo.CoilType coilType, int nCoilNumber, int nReadNumber)
{
string strType = coilType.ToString();
string strReadNumber = nReadNumber.ToString("D2");
string strCoilNumber = nCoilNumber.ToString("D4");
string strCmd = strReadNumber + strType + strCoilNumber;
byte[] baPLCAsciiRes = SendPLC(PLCInfo.FunctionID.ReadStatePoint, strCmd);
string strUsefulRes = Encoding.ASCII.GetString(baPLCAsciiRes);
Console.WriteLine("strUsefulRes: {0}, {1}", strUsefulRes, strUsefulRes.Length);
byte[] baUsefulRes = decStringToDecByteArray(strUsefulRes);
byte[] baResult = (baUsefulRes[0] == 0) ? baUsefulRes.Skip(1).Take(baUsefulRes.GetLength(0) - 1).ToArray <byte>() : new byte[0];
return(Tuple.Create(baUsefulRes[0], baResult)); // first one is error code, the second rest are useful info.
}
