public ErrorCode setRegsValue(PLCInfo.RegType regType, int nRegNumber, int nWriteNumber, long[] naWriteValues)
{
// Example: naWriteValues = [1000, 12000] ==> "03E8" + "2EE0" = "03E82EE0"
string strType = regType.ToString();
string strWriteNumber = nWriteNumber.ToString("D2");
string strRegNumber = nRegNumber.ToString("D5");
ErrorCode errorCode = ErrorCode.None;
// long[] naResult = new long[0];
int nDataLength = 0;
switch (regType)
{
case PLCInfo.RegType.R:
case PLCInfo.RegType.D:
nDataLength = 4;
break;
case PLCInfo.RegType.DR:
case PLCInfo.RegType.DD:
nDataLength = 8;
break;
default:
return(ErrorCode.PLCInfoTypeErr);
}
string strWriteValue = ByteArrayToHexString(naWriteValues, nDataLength);
string strCmd = strWriteNumber + strType + strRegNumber + strWriteValue;
byte[] baPLCAsciiRes = SendPLC(PLCInfo.FunctionID.WriteReg, strCmd);
if (baPLCAsciiRes.Length > 0)
{
string strUsefulRes = Encoding.ASCII.GetString(baPLCAsciiRes);
byte nErrorCode = byte.Parse(strUsefulRes[0].ToString());
errorCode = myErrorCode(nErrorCode);
}
else
{
errorCode = ErrorCode.PLCSocketErr;
}
return(errorCode);
}
public Tuple <byte, long[]> getRegsValue(PLCInfo.RegType regType, int nRegNumber, int nReadNumber)
{
string strType = regType.ToString();
string strReadNumber = nReadNumber.ToString("D2");
string strRegNumber = nRegNumber.ToString("D5");
string strCmd = strReadNumber + strType + strRegNumber;
byte[] baPLCAsciiRes = SendPLC(PLCInfo.FunctionID.ReadReg, strCmd);
string strUsefulRes = Encoding.ASCII.GetString(baPLCAsciiRes);
Console.WriteLine("strUsefulRes: {0}, {1}", strUsefulRes, strUsefulRes.Length);
// Example: R0 = 1000, strUsefulRes= 003E8 DR2 = 10,000,000, strUsefulRes = 000989680
// Note: The first 0 is error code. so it actually is "03E8" for R0 = 1000.
byte nErrorCode = byte.Parse(strUsefulRes[0].ToString());
Console.WriteLine($"nErrorCode: {nErrorCode}");
byte[] baUsefulRes = new byte[0];
long[] naResult = new long[0];
if (nErrorCode == 0)
{
baUsefulRes = hexStringToHexByteArray(strUsefulRes.Substring(1));
int nDataLength = 0;
switch (regType)
{
case PLCInfo.RegType.R:
case PLCInfo.RegType.D:
nDataLength = 2;
break;
case PLCInfo.RegType.DR:
case PLCInfo.RegType.DD:
nDataLength = 4;
break;
default:
return(Tuple.Create(nErrorCode, naResult));
}
long[] naTemp = new long[baUsefulRes.Length / nDataLength];
for (int i = 0; i < baUsefulRes.Length; i += nDataLength)
{
byte[] baTemp = baUsefulRes.Skip(i * nDataLength).Take(nDataLength).ToArray <byte>();
// Since Fatek PLC is Little-endian-based, must reverse it first
Array.Reverse(baTemp);
if (nDataLength == 2)
{
Int16 nRegValue = BitConverter.ToInt16(baTemp, 0);
naTemp[i] = nRegValue;
}
else
{
Int32 nRegValue = BitConverter.ToInt32(baTemp, 0);
naTemp[i] = nRegValue;
}
}
naResult = naTemp;
}
return(Tuple.Create(nErrorCode, naResult)); // first one is error code, the second rest are useful info.
}