偶初学的时候写的，同给初学者参考

很多人，无论做什么事情，刚起步当然难。

写了一个相当于Hello World的NC代码，给刚接触的初学者。

//以下是一个灯开关NC程序的示例，相当于Hello World吧，我一向喜欢用按键和灯来做第一个程序。

#pragma num_alias_table_entries 10#pragma run_unconfigured#pragma enable_sd_nv_names#pragma  relaxed_casting_on

//  --- Include files ---#include <io_types.h>#include <control.h>#include <addrdefs.h>#include <netmgmt.h>#include <msg_addr.h>#include <status.h>

extern system void _change_state(int state);

//  --- predefine variable declarations ---#define STX 0x02        // start of packet#define ETX 0x00        // end of packet#define MAX 4 // max queue size#define BUFF_SIZE 31 //buffer size#define NM_SEND_TIME 10#define EDEV_DELAY_TIME 10000#define unconfigured 0x02#define config_on_line 0x04#define config_off_line 0x0c//--------------------------------#define ON 1#define OFF 0//--------------------------------

// io object declaration (new)-----------IO_0 output bit ioRelay01 = TRUE;IO_1 output bit ioRelay02 = TRUE;IO_2 output bit ioRelay03 = TRUE;IO_3 output bit ioRelay04 = TRUE;

IO_4 input bit ioButton01;IO_5 input bit ioButton02;IO_6 input bit ioButton03;IO_7 input bit ioButton04;//-----------------------------------------

//  --- timer declarations ---mtimer repeating        Nv_ack_timer;mtimer edev_info_timer; stimer edev_delay_timer;

//  --- network variable declarations ---far network input SNVT_str_asc nviHostData;far network output SNVT_str_asc nvoData;

//  --- function declarations ---void SelfBind(void);void CheckDomain(void);

//  --- variable declarations ---typedef struct queue{        unsigned char buff[BUFF_SIZE];}queue;far queue rcv_que[MAX];

domain_struct new_domain;//-----------------------------------------------------------------------------------------------// --- eeprom variable declarations ---// e-device inforamtion initialize//-----------------------------------------------------------------------------------------------// 4ch., use the below dataeeprom unsigned int edev_info[31]={0x02,0x22,0x00,0x04,0x00,0x05,0x00,0x90,0x00,0xBF,           0x22,0x00,0x05,0x11,0x04,0x30,0x30,0x30,0x30,0x30,           0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00};           // if 3ch., use the below data//eeprom unsigned int edev_info[31]={0x02,0x22,0x00,0x03,0x00,0x05,0x00,0x90,0x00,0xBF,//           0x22,0x00,0x05,0x11,0x03,0x30,0x30,0x30,0x30,0x30,//           0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00};

// if 2ch., use the below data//eeprom unsigned int edev_info[31]={0x02,0x22,0x00,0x02,0x00,0x05,0x00,0x90,0x00,0xBF,//           0x22,0x00,0x05,0x11,0x02,0x30,0x30,0x30,0x30,0x30,//           0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00};

// if 1ch., use the below data//eeprom unsigned int edev_info[31]={0x02,0x22,0x00,0x01,0x00,0x05,0x00,0x90,0x00,0xBF,//           0x22,0x00,0x05,0x11,0x01,0x30,0x30,0x30,0x30,0x30,//           0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00};

//-----------------------------------------------------------------------------------------------

unsigned int sbuff_tmp[BUFF_SIZE];unsigned int ck_checksum;unsigned int rear_rptr, front_rptr;unsigned int f_txOK, f_rxOK;unsigned int ck_info_ctr;unsigned int f_uartOK;

/* Light State buffer & flag defince------------------------------------------------------------*/ unsigned int light_state[31];  // to save status msg temporarilyunsigned int led_state01,led_state02,led_state03,led_state04; // to save led status, i,e, flag variables /* ---------------------------------------------------------------------------------------------*/ 

//-----------------------------------------------------------//// [1] Initialize Block ////-----------------------------------------------------------when ( reset ){ unsigned int i,j; ck_info_ctr = 0; rear_rptr = 0; front_rptr = 0;// test = 3000; f_txOK = 1; f_rxOK = 1; Nv_ack_timer = 0; // 300ms timer stop for( i = 0; i< MAX; i++)  for( j = 0; j< BUFF_SIZE; j++)  // buffer clear   rcv_que[i].buff[j] = 0;

/* ---------------------------*/  led_state01 = ON;  led_state02 = ON; led_state03 = ON; led_state04 = ON; io_out(ioRelay01,0);  // relay off io_out(ioRelay02,0); io_out(ioRelay03,0);   io_out(ioRelay04,0); /* ---------------------------*/  CheckDomain();}

//-----------------------------------------------------------//// [2] Timer Block ////-----------------------------------------------------------when( timer_expires(edev_delay_timer)){ (void)service_pin_msg_send();  edev_info_timer = EDEV_DELAY_TIME;}

when( timer_expires(edev_info_timer)){ ck_info_ctr++; (void)service_pin_msg_send();  if( ck_info_ctr > 4) {  ck_info_ctr = 0;  edev_info_timer = 0;  } else  edev_info_timer = EDEV_DELAY_TIME;}

when( timer_expires(Nv_ack_timer)){ if(nv_update_succeeds( nvoData )) {  rear_rptr = (rear_rptr + 1) & (MAX-1); // que rcv index increase  f_txOK = 1;  Nv_ack_timer = 0;  // 300ms timer stop } else {  if(nv_update_fails( nvoData ))  {   rear_rptr = (rear_rptr + 1) & (MAX-1); // que rcv index increase   f_txOK = 1;   Nv_ack_timer = 0; // 300ms timer stop  } }}

//-----------------------------------------------------------//// [3] Receive Block //// : save the received PLC packet to buffer and do action according to msg//-----------------------------------------------------------when(nv_update_occurs(nviHostData)){ unsigned int i;

 if(nviHostData.ascii[5] == 0x10) {  new_domain = *(access_domain(0));  if(rear_rptr == ((front_rptr + 1)&(MAX-1)))   rear_rptr = (rear_rptr + 1)&(MAX-1); // data loss  rcv_que[front_rptr].buff[0] = STX;  for(i=1; i<4; i++)   rcv_que[front_rptr].buff[i] = edev_info[i];  rcv_que[front_rptr].buff[4] = 0; //Opt, PN  rcv_que[front_rptr].buff[5] = 0x11; //SK,PT  rcv_que[front_rptr].buff[6] = 0; //MODE

  rcv_que[front_rptr].buff[7] = 0x10; //Version Inform 1.0 version  if(read_only_data.model_num == 0)   rcv_que[front_rptr].buff[8] = 0x01; //3150 Model Number  else if(read_only_data.model_num == 1)   rcv_que[front_rptr].buff[8] = 0x11; //PL 3150 Model Number  else if((read_only_data.model_num >=8)&&(read_only_data.model_num <=14))   rcv_que[front_rptr].buff[8] = 0; // 3120 Model Number  else if(read_only_data.model_num == 15)   rcv_que[front_rptr].buff[8] = 0x10; // PL 3120 Model Number  else  rcv_que[front_rptr].buff[8] = 0x10; // PL 3120 Model Number  for(i=0;i<6;i++)   rcv_que[front_rptr].buff[i+9] = read_only_data.neuron_id[i];  for(i=0;i<6;i++)   rcv_que[front_rptr].buff[i+15] = new_domain.id[i];  rcv_que[front_rptr].buff[21] = new_domain.subnet;  rcv_que[front_rptr].buff[22] = new_domain.node;  for(i=23; i<29; i++)   rcv_que[front_rptr].buff[i] = 0x30; // dummy  ck_checksum = 0;  for(i=0; i<29; i++)   ck_checksum = ck_checksum^rcv_que[front_rptr].buff[i];  rcv_que[front_rptr].buff[29] = ck_checksum;   rcv_que[front_rptr].buff[30] = ETX;   front_rptr = (front_rptr + 1)&(MAX-1); // receive que increase } else {  if( f_uartOK != 0xf0 )  {   for( i=0; i < 31; i++ )    sbuff_tmp[i] = nviHostData.ascii[i]; 

   //---------------------------------------------------------------------------    // PLC Msg process   // : do action according to msg (for example: command, requset syayus, ...)   //---------------------------------------------------------------------------       if(sbuff_tmp[5]==0x01 && 0x0F)  //is this packet type[PT] "command" ?   {    light_state[5]=0x02;       if(sbuff_tmp[7]==0x01)   //Does 1st byte of Data Field mean 'ON'?    {     io_out(ioRelay01,0);     led_state01=ON;     light_state[7]=0x01;     for (i=0; i<31; i++)       nvoData.ascii[i] = light_state[i];    }    else if(sbuff_tmp[7]==0x00) //Does 1st byte of Data Field mean 'OFF'?     {     io_out(ioRelay01,1);     led_state01=OFF;     light_state[7]=0x00;     for (i=0; i<31; i++)       nvoData.ascii[i] = light_state[i];    }        else //添加其他的按键,由网络变量传送的信息     ;   }         else if(sbuff_tmp[7]==0x00)  //is this packet type[PT] "request Status"?   {    light_state[5]=0x02;    nvoData.ascii[i] = light_state[i];   }       else    ;   //--------------------------------------------------------------------  } }}

//-----------------------------------------------------------//// [4] Transmit Block //// : save PLC packet to Tx Que//-----------------------------------------------------------when((f_txOK == 1)&&(rear_rptr != front_rptr)){ unsigned int i; for (i=0; i<31; i++)   nvoData.ascii[i] = rcv_que[rear_rptr].buff[i]; Nv_ack_timer = 300;  // 300ms timer start  f_txOK = 0; }

//-----------------------------------------------------------//// [5] Biding Block //// : bind and do someting //-----------------------------------------------------------when(msg_arrives){ if(msg_in.code == 0x31) {  if(msg_in.data[15] == 0xf0) // Binding Start   SelfBind();  else if(msg_in.data[15] == 0x0f) // go_unconfigured   {   _change_state(unconfigured);   clear_status();   node_reset();  }  else if(msg_in.data[15] == 0x07)   {   edev_info_timer = 0;    ck_info_ctr = 0;   }  else  ;  } else ;}

//-----------------------------------------------------------//// [6] I/O process Block //// : check button and control relays or leds//-----------------------------------------------------------when (io_changes(ioButton01) to 0){    // The below codes are just example for our former product.    // please, customize to your product. int i; light_state[5]=0x07; // event notification                      // to set PT field to 0x07

 if(led_state01==ON) {    io_out(ioRelay01,0);  led_state01=OFF;    light_state[7]=0x01;    for (i=0; i<31; i++)    nvoData.ascii[i] = light_state[i]; } else if(led_state01==OFF) {  io_out(ioRelay01,1);  led_state01=ON;    light_state[7]=0x00;    for (i=0; i<31; i++)    nvoData.ascii[i] = light_state[i]; } else ;}

when (io_changes(ioButton02) to 0)  //其他按键被直接近下时的动作{// insert your code here}

when (io_changes(ioButton03) to 0){// insert your code here}

when (io_changes(ioButton04) to 0){// insert your code here}

//-----------------------------------------------------------//// Subroutines////-----------------------------------------------------------void SelfBind(){ unsigned int i; address_struct my_address; nv_struct my_nv; my_address = *(access_address(1)); // set address table 1 my_address.sn.type = SUBNET_NODE; my_address.sn.domain = 0; my_address.sn.node = 127;  my_address.sn.tx_timer = NM_SEND_TIME; my_address.sn.retry = 3; my_address.sn.subnet = 1; update_address(&my_address, 1);

 my_nv = *(access_nv(1)); my_nv.nv_selector_hi = 0x00; my_nv.nv_selector_lo = 0x7C; my_nv.nv_addr_index = 1; update_nv(&my_nv, 1); if(rear_rptr == ((front_rptr + 1)&(MAX-1)))  rear_rptr = (rear_rptr + 1)&(MAX-1); // data loss for(i=0;i<31;i++)  rcv_que[front_rptr].buff[i] = edev_info[i]; front_rptr = (front_rptr + 1)&(MAX-1); // receive que increase}

void CheckDomain(){ unsigned int i;  new_domain = *(access_domain(1)); new_domain.len = 0; for(i=0; i<6; i++) new_domain.id[i] = 0;   new_domain.subnet = 0; new_domain.node = 0; update_domain(&new_domain, 1);}