loading0x00, 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 };
unsigned char auchCRCLo[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 };
unsigned char uchCRCHi = 0xFF ; /* 高CRC字节初始化 */ unsigned char uchCRCLo = 0xFF ; /* 低CRC 字节初始化 */ unsigned uIndex = 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 (unsigned short)((unsigned short)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ModBus RTU 指令到 Modbus Slave,加上CRC16校验码； *修改日志：
*[2005-11-28 16:40] Ver. 1.00 开始编写； 完成； *[2006-3-1 9:02] 返回类型改为void； /* */ /*********************************************************************************/ void SendRtuCmdToModBus(int ModPort, unsigned char cmd[], unsigned short len) {
unsigned short CRC16;
CRC16=GetCRC16(cmd,len); ToComBufn(ModPort,cmd,len); ToCom(ModPort, (unsigned char)(CRC16 >> 8 & 0x00FF)); /* send CRC16 high */
ToCom(ModPort, (unsigned char)(CRC16 & 0x00FF)); /* send
CRC16 low */ }
/*****************************************************************************/
/*********************************************************************************/ /*函数名称: ReadModBusRtuSlave() *输入参数： 共 8 个参数； *输出参数： 共 5 个参数；
*返回值： 成功与否 1：成功， 2：失败； *需储存的参数： 共 0 个参数； *功能介绍：
(1)读取ModBusRtuSlave，并解码输出反馈字符串相关内容； ReadModBusRtuSlave(COMPORT1, ModAddr, ModFunction, ModByteNum,
ModData, &ModDataLen, ModTimeout=10, waitTime=30) *修改日志：
*[2005-11-28 16:40] Ver. 1.00 开始编写； 完成； *[2006-3-1 9:23]
增加了int counter = 0;
unsigned char ModBusMessage[MOD_STR_MAX_LEN]; *[2006-3-1 13:46]
增加了 strmcpy(ModData, ModBusMessage + 3, ModBusIdx - 5);
/* */ /*********************************************************************************/
int ReadModBusRtuSlave(int ModPort, unsigned char *ModAddr, unsigned char *ModFunction, unsigned char *ModByteNum,
unsigned char ModData[], unsigned char *ModDataLen, unsigned ModTimeout, unsigned waitTime) {
unsigned char data; unsigned long t; int i;
unsigned short CRC16; int ModBusIdx = 0;
int counter = 0;
unsigned char ModBusMessage[MOD_STR_MAX_LEN] = {'\\0'};
while((!(IsCom(ModPort)) && (counter < waitTime))) {
DelayMs(1); counter ++; }
StopWatchStart(MODBUS_STOP_WATCH); do {
while(IsCom(ModPort) && (ModBusIdx < MOD_STR_MAX_LEN - 1)) {
data = ReadCom(ModPort);
ModBusMessage[ModBusIdx ++]=data; StopWatchStart(MODBUS_STOP_WATCH); /* Print(\ }
StopWatchReadValue(MODBUS_STOP_WATCH, &t); }
while(t <= ModTimeout);
if (ModBusIdx == 0) return 0; ModBusMessage[ModBusIdx] = '\\0'; StopWatchStop(MODBUS_STOP_WATCH);
CRC16 = GetCRC16(ModBusMessage,ModBusIdx - 2);
/* for(i=0; i> 8 & 0x00FF) == ModBusMessage[ModBusIdx - 2] && (unsigned char)(CRC16 & 0x00FF) == ModBusMessage[ModBusIdx - 1]) {
*ModAddr = ModBusMessage[0]; *ModFunction = ModBusMessage[1]; *ModByteNum = ModBusMessage[2];
strmcpy(ModData, ModBusMessage + 3, ModBusIdx - 5); /* Print(\ \ /*test*/ /* for(i = 3; i < ModBusIdx - 2; i++) {
ModData[i - 3] = ModBusMessage[i]; }
ModData[i] = '\\0'; */
*ModDataLen = ModBusIdx - 5;
/* Print(\ return 1; }
else {
*ModDataLen = 0; return 0;
/* CRC16 error */
/* Print(\ } }
/*-------------------------------------------------------------------------------*/
/*********************************************************************************/ /*函数名称: ResponseFromModBusRtuSlave()
*输入参数： 共 8 个参数； *输出参数： 共 5 个参数；
*返回值： 成功与否 1：成功， 2：失败； *需储存的参数： 共 0 个参数； *功能介绍：
(1)写参数到ModBusRtuSlave后，ModbusRtuSlave反馈字符串； *修改日志：
*[2006-3-1 12:34] Ver. 1.00 开始编写； *[2006-3-1 12:48] 完成； *[2006-3-6 16:32]
strcpy(totalStr, ModBusMessage);
改为 strmcpy(totalStr, ModBusMessage, ModBusIdx); /* */ /*********************************************************************************/ int ResponseFromModBusRtuSlave(int ModPort, unsigned char totalStr[],