C# Modbus协议中读取浮点数的操作方法
标签：输入 nts plc float 浮点 int tsig 浮点数 short
C# Modbus协议中读取浮点数的操作方法
static float GetFloat(ushort P1, ushort P2)
{
int intSign, intSignRest, intExponent, intExponentRest;
float faResult, faDigit;
intSign = P1 / 32768;
intSignRest = P1 % 32768;
intExponent = intSignRest / 128;
intExponentRest = intSignRest % 128;
faDigit = (float)(intExponentRest * 65536 + P2) / 8388608;
faResult = (float)Math.Pow(-1, intSign) * (float)Math.Pow(2, intExponent - 127) * (faDigit + 1);
return faResult;
}