modbus(C語(yǔ)言程序)參考模板

1、modbus（C語(yǔ)言程序）  2009-10-15 09:31:28|  分類(lèi)： 默認(rèn)分類(lèi)|字號(hào) 訂閱#include <REGX52.H>#include<intrins.h>/_nop_();#define  OSFREQ 11059200char TimeInterval;char MyAddress;            char data DI6=1,2,3,4,5,6;

2、 char data DO6=6,7,8,9,10,11; char data AI6=11,12,13,14,15,16;char data AO6=16,17,18,19,20,21;   unsigned char data ReceiveData14;unsigned char data  countnumber;sbit Recenable  =P16;/控制端   sbit led  =P27;/控制端/*-函數(shù)說(shuō)明：CRC 高位字節(jié)值表-*/static unsigned char

3、 code auchCRCHi = 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,                 

4、60;                                            0x80, 0x41, 0x01, 0xC0, 0x80, 0x4

5、1, 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, 0x

6、80, 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, 0

7、xC1, 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, 0xC0,1 / 140x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,

8、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,

9、 0x80, 0x41,0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,0x80, 0x41, 0x00, 0xC1, 0x81, 0x40 ;/*-函數(shù)說(shuō)明：CRC低位字節(jié)值表-*/static unsigned char code auchCRCLo = 0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,0x0F, 0xCF, 0xCE,

10、 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

11、, 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, 0xE

12、1, 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, 0x

13、7C, 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, 0

14、x49, 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;/*-調(diào)用方式：unsigned int CRC16(unsigned char *puchMsg, unsigned int usDataLen)函數(shù)說(shuō)明：CRC校驗(yàn)-*/unsigned int CRC16(unsigned char *puch

15、Msg, unsigned int usDataLen)  unsigned char uchCRCHi = 0xFF ;    / 高CRC字節(jié)初始化   unsigned char uchCRCLo = 0xFF ;    / 低CRC 字節(jié)初始化  unsigned uIndex ;                  /

16、CRC循環(huán)中的索引   while (usDataLen-)                / 傳輸消息緩沖區(qū)        uIndex = uchCRCHi *puchMsg+ ; / 計(jì)算CRC             uchCRCHi = u

17、chCRCLo auchCRCHiuIndex ;    uchCRCLo = auchCRCLouIndex ;    return (uchCRCHi << 8 | uchCRCLo) ;/*-調(diào)用方式：unsigned char getbit(unsigned int  address,unsigned char  function)函數(shù)說(shuō)明：取出所給地址的位值-*/unsigned char getbit(unsigned int  address,unsigned char  fun

18、ction)  unsigned char data Offset;  unsigned char data temp;  unsigned char data *Myaddress;    Offset=(char)address&0x07;  switch (function)                 /根據(jù)功能碼不同進(jìn)行相應(yīng)處理  &#

19、160;  case 2:           Myaddress=DI;           break;   case 1:           Myaddress=DO;        

20、;                break;   default:           return 2;    temp=(char)(address>>3);  temp=*(Myaddress+temp);  temp>>=(Offset);  i

21、f (temp&0x01)    return 1;  else    return 0;/*-調(diào)用方式：void SendData(unsigned char  *output,unsigned char  Outlength)函數(shù)說(shuō)明：發(fā)送數(shù)據(jù)至窗口-*/void SendData(unsigned char  *output,unsigned char  Outlength)    ES=0;  while(Outlength-)&

22、#160;       TI=0;    ACC=*output;    TB8=P;    SBUF=*(output+);    while(!TI);    TI=0;         ES=1;/*-調(diào)用方式：void Function12(unsigned char address,unsigned char len)

23、函數(shù)說(shuō)明：功能碼1，2處理-*/void Function12(unsigned char address,unsigned char len)  unsigned int data i;  unsigned char data j;  unsigned char data length;  unsigned char data *send;  unsigned int data temp;  unsigned char data function;  length=0;  send=ReceiveData;

24、60; function=send1;  for (i=1;i<=len;i+)      length+;    *(send+2+length)=0;    for (j=0;j<8;j+)          *(send+2+length)=*(send+2+length)|getbit(address,function)<<j;   address+;&#

25、160;  i+;   if(i>len)break;        i-;    *(send+2)=length;                        /數(shù)據(jù)長(zhǎng)度  temp=CRC16(send,length+3); 

26、              /DI狀態(tài)數(shù)據(jù)  *(send+3+length)=(char)(temp>>8);        /CRC校驗(yàn)高  *(send+4+length)=(char)temp;             /CRC校驗(yàn)低

27、60; SendData(send,length+5);                 /調(diào)用A發(fā)送程序/*-調(diào)用方式：void Function3(unsigned char  address,unsigned char  len)函數(shù)說(shuō)明：功能碼3處理-讀取寄存器-*/void Function3(unsigned char  address,unsigned char  len) 

28、; unsigned char data i;  unsigned char data *send;  unsigned int data temp;  send=ReceiveData;  *(send+2)=2*len;                         /數(shù)據(jù)長(zhǎng)度高  address=2*

29、address;  for(i=0;i<len;i+)                       /取輸入寄存器數(shù)據(jù)      *(send+3+2*i)=AOaddress+;    *(send+4+2*i)=AOaddress+;    temp=CRC16(sen

30、d,2*len+3);                /CRC校驗(yàn)  *(send+3+2*len)=(char)(temp>>8);  *(send+4+2*len)=(char)temp;  SendData(send,2*len+5);              

31、;    /調(diào)用A發(fā)送程序/*-調(diào)用方式：void Function4(unsigned char  address,unsigned char  len)函數(shù)說(shuō)明：功能碼處理4-讀取輸入寄存器-*/void Function4(unsigned char  address,unsigned char  len)  unsigned char data i;  unsigned char data *send;  unsigned int data temp;  send=Receiv

32、eData;  *(send+2)=2*len;  address=2*address;  for(i=0;i<len;i+)                       /取數(shù)據(jù)      *(send+4+2*i)=AIaddress+;    *(send+3+2*i

33、)=AIaddress+;    temp=CRC16(send,2*len+3);  *(send+3+2*len)=(char)(temp>>8);  *(send+4+2*len)=(char)temp;  SendData(send,2*len+5); /*-調(diào)用方式：void Function6(unsigned char address)函數(shù)說(shuō)明：寫(xiě)單路寄存器-*/void Function6(unsigned char address)  int temp;  unsigned char

34、data *WriteData;  temp=2*address;  WriteData=AO;  /將寫(xiě)入的數(shù)據(jù)進(jìn)行處理  /your code to add here to deal with the write value  *(WriteData+temp)=ReceiveData4;  *(WriteData+temp+1)=ReceiveData5;  SendData(ReceiveData,countnumber);       /調(diào)用發(fā)送程序，返回

35、與主機(jī)相同的報(bào)文/*-調(diào)用方式：void SendError(char ErrorCode)函數(shù)說(shuō)明：-*/void SendError(char ErrorCode)  unsigned char data *send;  unsigned int data temp;  send=ReceiveData;  *(send+1)=ReceiveData1|0x01;/最高位置1  *(send+2)=ErrorCode;  temp=CRC16(send,3);  *(send+3)=(char)(temp>>

36、8);  *(send+4)=(char)temp;  SendData(send,countnumber);              /調(diào)用發(fā)送程序,返回錯(cuò)誤代碼/*-調(diào)用方式：void Deal()函數(shù)說(shuō)明：接收數(shù)據(jù)處理-*/void Deal()  unsigned int data temp;  unsigned char data address;  unsigned char data length;&

37、#160; unsigned char data counter;  unsigned char data *Pointer;  Pointer=ReceiveData;  counter=countnumber;  if (counter<=3 ) return;  temp=Pointercounter-2<<8;     temp= temp|Pointercounter-1;  if( temp=CRC16(Pointer,counter-2)  &

38、#160;   /較驗(yàn)正確       address=Pointer3;    length=Pointer5;    if(address<48)          switch (Pointer1)               

39、   /根據(jù)功能碼不同進(jìn)行相應(yīng)處理*/       case 1:            Function12(address,length);            break;    case 2:      

40、60;     Function12(address,length);            break;    case 3:            address=address-1;          &

41、#160; Function3(address,length);            break;    case 4:            address=address-1;            Function4(address

42、,length);            break;    case 6:            address=address-1;            Function6(address);    de

43、fault:               SendError(0x81);               break;              else    SendError(

44、0x82);    countnumber=0;/*bit Chargetbit(unsigned char character,unsigned char Number)    if(character>>Number&0x01=1)    return 1;  else    return 0;/設(shè)定某一位的值*unsigned char SetBit(unsigned char Character,unsigned char num,bit bool

45、en)  unsigned char code bit_value=1,2,4,8,16,32,64,128;  if(boolen)     return Character|bit_valuenum;  else    return Character&bit_valuenum;*/*-調(diào)用方式：void Init_timer2(unsigned int baudrate)函數(shù)說(shuō)明：定時(shí)器2的初始化-*/void Init_timer2(unsigned int baudrate)&

46、#160; unsigned int data TimReg2;  T2CON = 0x00;  T2MOD = 0x00;  TimReg2=65536-(OSFREQ/384/baudrate*11);  RCAP2L=TimReg2&0x00ff;  RCAP2H=(TimReg2>8);       /RCAP2H=TimReg2/256  RCAP2L=0; RCAP2H=0;  TL2  = RCAP2L; &

47、#160;                        /   TH2  = RCAP2H;                    

48、60;     /   TR2=1;                                  / T2CON.2 start timer    ET2=0; &

49、#160;                                / 開(kāi)定時(shí)器2中斷/*-調(diào)用方式：void Init_SerialPort(unsigned int baudrate)函數(shù)說(shuō)明：串口初始化-*/void Init_SerialPort(unsigned int b

50、audrate)  unsigned char TimReg2;  SCON = 0xd0;                            / 方式3, 8-bit UART, enable rcvr        TMOD = 0

51、x21;                            / T0方式1（16位）,  T1方式2,8位重裝          TimReg2=256-(OSFREQ/384/baudrate);  TH1 = T

52、imReg2;                          / 定時(shí)器1,在11.0592MHz下,波特率為9600     TL1 = TH1;  TR1= 1;           

53、;                      / TR1:  定時(shí)開(kāi)始                          

54、;  /PS=1;                                 / 串行中斷優(yōu)先  ES=1;            &

55、#160;                    / 接收中斷/*-函數(shù)說(shuō)明：主函數(shù)-*/main()    EA=1;                     

56、0;             /開(kāi)總中斷  Init_SerialPort(9600);  Init_timer2(9600);  Recenable=0;                        

57、60;   /接收允許  MyAddress=0x01;                         /本機(jī)地址  while(1)            /*-調(diào)用方式：void SeiralA() interrupt 4 using 0函數(shù)說(shuō)明：通訊中斷-*/void SeiralA() interrupt 4 using 0  if(RI)       if(TimeInterval>2)&&(TimeInterval<=4)     countnumber=0;  &#