1,数据转换
- BinStringToInt32;将类似"01110001100"的转为Int32.
- BinStringToByte;将类似"01110001100"的转为Byte.
- ValToBinString:将类似Byte,Int,Dint,等整型转为BinString.
- SelectBit:查询Byte中某个位的值.
- short---ushort转换.
- int---UInt转换(读取的都是无符号).
- double---首先转为byte[]再转为double.
public static class Conversion { /// <summary> /// Converts a binary string to Int32 value /// </summary> /// <param name="txt"></param> /// <returns></returns> public static int BinStringToInt32(this string txt) { int ret = 0; for (int i = 0; i < txt.Length; i++) { ret = (ret << 1) | ((txt[i] == '1') ? 1 : 0); } return ret; } /// <summary> /// Converts a binary string to a byte. Can return null. /// </summary> /// <param name="txt"></param> /// <returns></returns> public static byte? BinStringToByte(this string txt) { if (txt.Length == 8) return (byte)BinStringToInt32(txt); return null; } /// <summary> /// Converts the value to a binary string /// </summary> /// <param name="value"></param> /// <returns></returns> public static string ValToBinString(this object value) { int cnt = 0; int cnt2 = 0; int x = 0; string txt = ""; long longValue = 0; try { if (value.GetType().Name.IndexOf("[]") < 0) { // ist nur ein Wert switch (value.GetType().Name) { case "Byte": x = 7; longValue = (long)((byte)value); break; case "Int16": x = 15; longValue = (long)((Int16)value); break; case "Int32": x = 31; longValue = (long)((Int32)value); break; case "Int64": x = 63; longValue = (long)((Int64)value); break; default: throw new Exception(); } for (cnt = x; cnt >= 0; cnt += -1) { if (((Int64)longValue & (Int64)Math.Pow(2, cnt)) > 0) txt += "1"; else txt += "0"; } } else { // ist ein Array switch (value.GetType().Name) { case "Byte[]": x = 7; byte[] ByteArr = (byte[])value; for (cnt2 = 0; cnt2 <= ByteArr.Length - 1; cnt2++) { for (cnt = x; cnt >= 0; cnt += -1) if ((ByteArr[cnt2] & (byte)Math.Pow(2, cnt)) > 0) txt += "1"; else txt += "0"; } break; case "Int16[]": x = 15; Int16[] Int16Arr = (Int16[])value; for (cnt2 = 0; cnt2 <= Int16Arr.Length - 1; cnt2++) { for (cnt = x; cnt >= 0; cnt += -1) if ((Int16Arr[cnt2] & (byte)Math.Pow(2, cnt)) > 0) txt += "1"; else txt += "0"; } break; case "Int32[]": x = 31; Int32[] Int32Arr = (Int32[])value; for (cnt2 = 0; cnt2 <= Int32Arr.Length - 1; cnt2++) { for (cnt = x; cnt >= 0; cnt += -1) if ((Int32Arr[cnt2] & (byte)Math.Pow(2, cnt)) > 0) txt += "1"; else txt += "0"; } break; case "Int64[]": x = 63; byte[] Int64Arr = (byte[])value; for (cnt2 = 0; cnt2 <= Int64Arr.Length - 1; cnt2++) { for (cnt = x; cnt >= 0; cnt += -1) if ((Int64Arr[cnt2] & (byte)Math.Pow(2, cnt)) > 0) txt += "1"; else txt += "0"; } break; default: throw new Exception(); } } return txt; } catch { return ""; } } /// <summary> /// Helper to get a bit value given a byte and the bit index. /// Example: DB1.DBX0.5 -> var bytes = ReadBytes(DB1.DBW0); bool bit = bytes[0].SelectBit(5); /// </summary> /// <param name="data"></param> /// <param name="bitPosition"></param> /// <returns></returns> public static bool SelectBit(this byte data, int bitPosition) { int mask = 1 << bitPosition; int result = data & mask; return (result != 0); } /// <summary> /// Converts from ushort value to short value; it's used to retrieve negative values from words /// </summary> /// <param name="input"></param> /// <returns></returns> public static short ConvertToShort(this ushort input) { short output; output = short.Parse(input.ToString("X"), NumberStyles.HexNumber); return output; } /// <summary> /// Converts from short value to ushort value; it's used to pass negative values to DWs /// </summary> /// <param name="input"></param> /// <returns></returns> public static ushort ConvertToUshort(this short input) { ushort output; output = ushort.Parse(input.ToString("X"), NumberStyles.HexNumber); return output; } /// <summary> /// Converts from UInt32 value to Int32 value; it's used to retrieve negative values from DBDs /// </summary> /// <param name="input"></param> /// <returns></returns> public static Int32 ConvertToInt(this uint input) { int output; output = int.Parse(input.ToString("X"), NumberStyles.HexNumber); return output; } /// <summary> /// Converts from Int32 value to UInt32 value; it's used to pass negative values to DBDs /// </summary> /// <param name="input"></param> /// <returns></returns> public static UInt32 ConvertToUInt(this int input) { uint output; output = uint.Parse(input.ToString("X"), NumberStyles.HexNumber); return output; } /// <summary> /// Converts from double to DWord (DBD) /// </summary> /// <param name="input"></param> /// <returns></returns> public static UInt32 ConvertToUInt(this double input) { uint output; output = S7.Net.Types.DWord.FromByteArray(S7.Net.Types.Double.ToByteArray(input)); return output; } /// <summary> /// Converts from DWord (DBD) to double /// </summary> /// <param name="input"></param> /// <returns></returns> public static double ConvertToDouble(this uint input) { double output; output = S7.Net.Types.Double.FromByteArray(S7.Net.Types.DWord.ToByteArray(input)); return output; } }