MODBUS通讯+C语言源代码.docx
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MODBUS通讯+C语言源代码
盛年不重来,一日难再晨。
及时宜自勉,岁月不待人。
/*********************************************************************************/
/*函数名称:
strmcpy()
*输入参数:
共 个参数;
*输出参数:
*返回值:
*需储存的参数:
*功能介绍:
(1)字符数组拷贝;
*修改日志:
*[2006-3-617:
07] Ver.1.00
开始编写;
完成;
/* */
voidstrmcpy(unsignedchardest[],unsignedcharsrc[],intcount)
{
inti;
for(i=0;i { dest[i]=src[i]; } dest[i]='\0'; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:bitmcpy() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)开关量数组拷贝; *修改日志: *[2006-3-714:59] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ voidbitmcpy(intdest[],intsrc[],intcount) { inti; for(i=0;i { dest[i]=src[i]; } } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:strmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)字符数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-617:41] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intstrmcmp(unsignedcharstr1[],unsignedcharstr2[],intcount) { inti; for(i=0;i { if(str1[i]!=str2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Datamcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)浮点数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:05] Ver.1.00 开始编写; 完成; *[2006-3-913:52] 加了一层括号,以前是错误的 if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) /* */ /*********************************************************************************/ intDatamcmp(floatdata1[],floatdata2[],intcount) { inti; for(i=0;i { if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Bitmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)开关量数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:10] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intBitmcmp(intdata1[],intdata2[],intcount) { inti; for(i=0;i { if(data1[i]!=data2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:GetCRC16() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)CRC16校验;返回校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen) { /*CRC高位字节值表*/ unsignedcharauchCRCHi[256]={ 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40 }; unsignedcharauchCRCLo[256]={ 0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06, 0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD, 0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09, 0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A, 0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4, 0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3, 0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3, 0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4, 0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A, 0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29, 0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED, 0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26, 0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60, 0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67, 0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F, 0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68, 0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E, 0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5, 0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71, 0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92, 0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C, 0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B, 0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B, 0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C, 0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42, 0x43,0x83,0x41,0x81,0x80,0x40 }; unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/ unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/ unsigneduIndex=0;/*CRC循环中的索引*/ while(usDataLen--)/*传输消息缓冲区*/ { uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/ uchCRCHi=uchCRCLo^auchCRCHi[uIndex]; uchCRCLo=auchCRCLo[uIndex]; } return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo); } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:SendRtuCmdToModBus() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: 无 *需储存的参数:共 个参数; *功能介绍: (1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; *[2006-3-19:02] 返回类型改为void; /* */ /*********************************************************************************/ voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen) { unsignedshortCRC16; CRC16=GetCRC16(cmd,len); ToCom
dest[i]=src[i];
}
dest[i]='\0';
/*****************************************************************************/
bitmcpy()
(1)开关量数组拷贝;
*[2006-3-714:
59] Ver.1.00
voidbitmcpy(intdest[],intsrc[],intcount)
for(i=0;i { dest[i]=src[i]; } } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:strmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)字符数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-617:41] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intstrmcmp(unsignedcharstr1[],unsignedcharstr2[],intcount) { inti; for(i=0;i { if(str1[i]!=str2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Datamcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)浮点数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:05] Ver.1.00 开始编写; 完成; *[2006-3-913:52] 加了一层括号,以前是错误的 if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) /* */ /*********************************************************************************/ intDatamcmp(floatdata1[],floatdata2[],intcount) { inti; for(i=0;i { if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Bitmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)开关量数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:10] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intBitmcmp(intdata1[],intdata2[],intcount) { inti; for(i=0;i { if(data1[i]!=data2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:GetCRC16() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)CRC16校验;返回校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen) { /*CRC高位字节值表*/ unsignedcharauchCRCHi[256]={ 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40 }; unsignedcharauchCRCLo[256]={ 0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06, 0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD, 0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09, 0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A, 0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4, 0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3, 0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3, 0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4, 0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A, 0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29, 0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED, 0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26, 0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60, 0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67, 0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F, 0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68, 0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E, 0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5, 0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71, 0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92, 0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C, 0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B, 0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B, 0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C, 0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42, 0x43,0x83,0x41,0x81,0x80,0x40 }; unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/ unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/ unsigneduIndex=0;/*CRC循环中的索引*/ while(usDataLen--)/*传输消息缓冲区*/ { uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/ uchCRCHi=uchCRCLo^auchCRCHi[uIndex]; uchCRCLo=auchCRCLo[uIndex]; } return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo); } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:SendRtuCmdToModBus() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: 无 *需储存的参数:共 个参数; *功能介绍: (1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; *[2006-3-19:02] 返回类型改为void; /* */ /*********************************************************************************/ voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen) { unsignedshortCRC16; CRC16=GetCRC16(cmd,len); ToCom
strmcmp()
(1)字符数组比较;相同则返回0,不相同则返回1;
41] Ver.1.00
intstrmcmp(unsignedcharstr1[],unsignedcharstr2[],intcount)
for(i=0;i { if(str1[i]!=str2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Datamcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)浮点数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:05] Ver.1.00 开始编写; 完成; *[2006-3-913:52] 加了一层括号,以前是错误的 if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) /* */ /*********************************************************************************/ intDatamcmp(floatdata1[],floatdata2[],intcount) { inti; for(i=0;i { if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Bitmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)开关量数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:10] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intBitmcmp(intdata1[],intdata2[],intcount) { inti; for(i=0;i { if(data1[i]!=data2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:GetCRC16() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)CRC16校验;返回校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen) { /*CRC高位字节值表*/ unsignedcharauchCRCHi[256]={ 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40 }; unsignedcharauchCRCLo[256]={ 0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06, 0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD, 0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09, 0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A, 0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4, 0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3, 0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3, 0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4, 0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A, 0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29, 0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED, 0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26, 0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60, 0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67, 0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F, 0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68, 0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E, 0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5, 0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71, 0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92, 0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C, 0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B, 0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B, 0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C, 0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42, 0x43,0x83,0x41,0x81,0x80,0x40 }; unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/ unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/ unsigneduIndex=0;/*CRC循环中的索引*/ while(usDataLen--)/*传输消息缓冲区*/ { uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/ uchCRCHi=uchCRCLo^auchCRCHi[uIndex]; uchCRCLo=auchCRCLo[uIndex]; } return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo); } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:SendRtuCmdToModBus() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: 无 *需储存的参数:共 个参数; *功能介绍: (1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; *[2006-3-19:02] 返回类型改为void; /* */ /*********************************************************************************/ voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen) { unsignedshortCRC16; CRC16=GetCRC16(cmd,len); ToCom
if(str1[i]!
=str2[i])
return1;
return0;
Datamcmp()
(1)浮点数组比较;相同则返回0,不相同则返回1;
*[2006-3-618:
05] Ver.1.00
*[2006-3-913:
52]
加了一层括号,以前是错误的
if(!
((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001)))
intDatamcmp(floatdata1[],floatdata2[],intcount)
for(i=0;i { if(!((data1[i]-data2[i]<0.0001)&&(data1[i]-data2[i]>-0.0001))) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:Bitmcmp() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)开关量数组比较;相同则返回0,不相同则返回1; *修改日志: *[2006-3-618:10] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ intBitmcmp(intdata1[],intdata2[],intcount) { inti; for(i=0;i { if(data1[i]!=data2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:GetCRC16() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)CRC16校验;返回校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen) { /*CRC高位字节值表*/ unsignedcharauchCRCHi[256]={ 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40 }; unsignedcharauchCRCLo[256]={ 0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06, 0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD, 0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09, 0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A, 0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4, 0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3, 0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3, 0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4, 0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A, 0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29, 0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED, 0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26, 0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60, 0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67, 0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F, 0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68, 0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E, 0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5, 0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71, 0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92, 0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C, 0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B, 0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B, 0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C, 0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42, 0x43,0x83,0x41,0x81,0x80,0x40 }; unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/ unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/ unsigneduIndex=0;/*CRC循环中的索引*/ while(usDataLen--)/*传输消息缓冲区*/ { uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/ uchCRCHi=uchCRCLo^auchCRCHi[uIndex]; uchCRCLo=auchCRCLo[uIndex]; } return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo); } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:SendRtuCmdToModBus() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: 无 *需储存的参数:共 个参数; *功能介绍: (1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; *[2006-3-19:02] 返回类型改为void; /* */ /*********************************************************************************/ voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen) { unsignedshortCRC16; CRC16=GetCRC16(cmd,len); ToCom
Bitmcmp()
(1)开关量数组比较;相同则返回0,不相同则返回1;
10] Ver.1.00
intBitmcmp(intdata1[],intdata2[],intcount)
for(i=0;i { if(data1[i]!=data2[i]) { return1; } } return0; } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:GetCRC16() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: *需储存的参数:共 个参数; *功能介绍: (1)CRC16校验;返回校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; /* */ /*********************************************************************************/ unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen) { /*CRC高位字节值表*/ unsignedcharauchCRCHi[256]={ 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40, 0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1, 0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41, 0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0, 0x80,0x41,0x00,0xC1,0x81,0x40 }; unsignedcharauchCRCLo[256]={ 0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06, 0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD, 0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09, 0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A, 0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4, 0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3, 0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3, 0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4, 0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A, 0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29, 0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED, 0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26, 0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60, 0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67, 0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F, 0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68, 0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E, 0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5, 0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71, 0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92, 0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C, 0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B, 0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B, 0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C, 0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42, 0x43,0x83,0x41,0x81,0x80,0x40 }; unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/ unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/ unsigneduIndex=0;/*CRC循环中的索引*/ while(usDataLen--)/*传输消息缓冲区*/ { uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/ uchCRCHi=uchCRCLo^auchCRCHi[uIndex]; uchCRCLo=auchCRCLo[uIndex]; } return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo); } /*****************************************************************************/ /*********************************************************************************/ /*函数名称:SendRtuCmdToModBus() *输入参数: 共 个参数; *输出参数: 共 个参数; *返回值: 无 *需储存的参数:共 个参数; *功能介绍: (1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码; *修改日志: *[2005-11-2816:40] Ver.1.00 开始编写; 完成; *[2006-3-19:02] 返回类型改为void; /* */ /*********************************************************************************/ voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen) { unsignedshortCRC16; CRC16=GetCRC16(cmd,len); ToCom
if(data1[i]!
=data2[i])
GetCRC16()
(1)CRC16校验;返回校验码;
*[2005-11-2816:
40] Ver.1.00
unsignedshortGetCRC16(unsignedchar*puchMsg,unsignedshortusDataLen)
/*CRC高位字节值表*/
unsignedcharauchCRCHi[256]={
0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,
0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,
0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,
0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,
0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,
0x81,0x40,0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,
0x81,0x40,0x00,0xC1,0x81,0x40,0x01,0xC0,0x80,0x41,
0x80,0x41,0x00,0xC1,0x81,0x40,0x00,0xC1,0x81,0x40,
0x01,0xC0,0x80,0x41,0x01,0xC0,0x80,0x41,0x00,0xC1,
0x81,0x40,0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,
0x01,0xC0,0x80,0x41,0x00,0xC1,0x81,0x40,0x01,0xC0,
0x80,0x41,0x00,0xC1,0x81,0x40
};
unsignedcharauchCRCLo[256]={
0x00,0xC0,0xC1,0x01,0xC3,0x03,0x02,0xC2,0xC6,0x06,
0x07,0xC7,0x05,0xC5,0xC4,0x04,0xCC,0x0C,0x0D,0xCD,
0x0F,0xCF,0xCE,0x0E,0x0A,0xCA,0xCB,0x0B,0xC9,0x09,
0x08,0xC8,0xD8,0x18,0x19,0xD9,0x1B,0xDB,0xDA,0x1A,
0x1E,0xDE,0xDF,0x1F,0xDD,0x1D,0x1C,0xDC,0x14,0xD4,
0xD5,0x15,0xD7,0x17,0x16,0xD6,0xD2,0x12,0x13,0xD3,
0x11,0xD1,0xD0,0x10,0xF0,0x30,0x31,0xF1,0x33,0xF3,
0xF2,0x32,0x36,0xF6,0xF7,0x37,0xF5,0x35,0x34,0xF4,
0x3C,0xFC,0xFD,0x3D,0xFF,0x3F,0x3E,0xFE,0xFA,0x3A,
0x3B,0xFB,0x39,0xF9,0xF8,0x38,0x28,0xE8,0xE9,0x29,
0xEB,0x2B,0x2A,0xEA,0xEE,0x2E,0x2F,0xEF,0x2D,0xED,
0xEC,0x2C,0xE4,0x24,0x25,0xE5,0x27,0xE7,0xE6,0x26,
0x22,0xE2,0xE3,0x23,0xE1,0x21,0x20,0xE0,0xA0,0x60,
0x61,0xA1,0x63,0xA3,0xA2,0x62,0x66,0xA6,0xA7,0x67,
0xA5,0x65,0x64,0xA4,0x6C,0xAC,0xAD,0x6D,0xAF,0x6F,
0x6E,0xAE,0xAA,0x6A,0x6B,0xAB,0x69,0xA9,0xA8,0x68,
0x78,0xB8,0xB9,0x79,0xBB,0x7B,0x7A,0xBA,0xBE,0x7E,
0x7F,0xBF,0x7D,0xBD,0xBC,0x7C,0xB4,0x74,0x75,0xB5,
0x77,0xB7,0xB6,0x76,0x72,0xB2,0xB3,0x73,0xB1,0x71,
0x70,0xB0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92,
0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9C,0x5C,
0x5D,0x9D,0x5F,0x9F,0x9E,0x5E,0x5A,0x9A,0x9B,0x5B,
0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4B,0x8B,
0x8A,0x4A,0x4E,0x8E,0x8F,0x4F,0x8D,0x4D,0x4C,0x8C,
0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42,
0x43,0x83,0x41,0x81,0x80,0x40
unsignedcharuchCRCHi=0xFF;/*高CRC字节初始化*/
unsignedcharuchCRCLo=0xFF;/*低CRC字节初始化*/
unsigneduIndex=0;/*CRC循环中的索引*/
while(usDataLen--)/*传输消息缓冲区*/
uIndex=uchCRCHi^*puchMsg++;/*计算CRC*/
uchCRCHi=uchCRCLo^auchCRCHi[uIndex];
uchCRCLo=auchCRCLo[uIndex];
return(unsignedshort)((unsignedshort)uchCRCHi<<8|uchCRCLo);
SendRtuCmdToModBus()
无
(1)发送ModBusRTU指令到ModbusSlave,加上CRC16校验码;
*[2006-3-19:
02]
返回类型改为void;
voidSendRtuCmdToModBus(intModPort,unsignedcharcmd[],unsignedshortlen)
unsignedshortCRC16;
CRC16=GetCRC16(cmd,len);
ToCom
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