String Prcss_ALL_Read(){
  String str = "";

  str += "AI?:";
  for (int i = 0; i < Size_AI; i++) {
    int sum_AI = 0;
    for(int j = 0; j < AI_AVG_SIZE; j++) {
      sum_AI += Recent_AI[i][j];
    }

    char formattedNumber[5]; // 4자리 숫자 + 널 종료 문자
    //sprintf(formattedNumber, "%04X", Values_AI[i]); // 4자리로 고정된 형식의 문자열 생성
    sprintf(formattedNumber, "%04X", sum_AI); // 4자리로 고정된 형식의 문자열 생성
    str += formattedNumber; // 형식화된 문자열 추가
    str += ',';
  }
  str += RcvOK;
  
  str += "DI?:";
  char formattedNumber[5];
  sprintf(formattedNumber, "%04X", Values_DI);
  str += formattedNumber;
  str += ',';
  str += RcvOK;

  str += "PV_1?:";
  for (int i = 0; i < RS485_1_Rcv_size*2; i++) {
    char formattedNumber[5];
    int rcv = int(RS485_1_Rcv_PV[i/RS485_1_Rcv_size]);

    sprintf(formattedNumber, "%04X", RS485_1_Values_PV[i] * rcv);
    str += formattedNumber;
    str += ',';
  }
  str += RcvOK;


  str += "SV_1?:";
  for (int i = 0; i < RS485_1_Rcv_size*2; i++) {
    char formattedNumber[5];
    int rcv = int(RS485_1_Rcv_SV[i/RS485_1_Rcv_size]);

    sprintf(formattedNumber, "%04X", RS485_1_Values_SV[i] * rcv);
    str += formattedNumber;
    str += ',';
  }
  str += RcvOK;


  return str + FIN;
}

String Prcss_DO_Write(unsigned int data[], int dataSize){
  String str = "DO!:";

  if(dataSize != 1){
    str += RcvErr;
    return str + FIN;
  }

  unsigned int data0 = data[0];
  for (int bit = 0; bit < 16; bit++) {
    digitalWrite(DoPin[bit], bitRead(data0, bit) ? HIGH : LOW);
  }

  str += RcvOK;
  return str + FIN;
}

String Prcss_AO_Write(unsigned int data[], int dataSize){
  String str = "AO!:";
  int d = 2;

  for(int i=0 ; i<dataSize ; i++){
    AO_Write(i, data[i]);
  }

  str += RcvOK;
  return str + FIN;
}

String Prcss_SV_Write(unsigned int data[], int dataSize){
  String str = "SV!:";

  msg_MC9_SV_set(data, dataSize);

  str += RcvOK;
  return str + FIN;
}

String Prcss_AT_Write(unsigned int data[], int dataSize){
  String str = "AT!:";

  msg_MC9_AT_set(data, dataSize);

  str += RcvOK;
  return str + FIN;
}
/*
String Prcss_AT_Write(bool onOff){
  String str = "AT!:";
  String message, cmd;
  
  cmd = "10DWR,02,0302,0001,0501,";
  if(onOff){
    cmd += "0001";
  }else{
    cmd += "0000";
  }
  
  message = cmd;
  message += sumMC9(message);
  message = "" + message + CRLF;
  write_buff_first(Buff_485_Wr, message);

  str += RcvOK;
  return str + FIN;
}
*/
String Prcss_RngAO(unsigned int data[], int dataSize){
  String str = "RngAO!:";
  int rng = 0;
  int d = 10;
  for(int i=0 ; i<dataSize ; i++){
    if(i+1 < dataSize){
      rng = (data[i] > data[i+1]) ? data[i] : data[i+1];
    }else{
      rng = data[i];
    }
    AO_setup(i, rng);
    delay(d);
    i++;  // every 0 ch, not 1 ch.
  }
  str += RcvOK;
  return str + FIN;
}

String Prcss_ChMC9(unsigned int data[], int dataSize){
  String str = "ChMC9!:";
  int d = 20;
  for(int i=0 ; i<dataSize ; i++){
    setupMC9_1(i, data[i]);
    delay(d);
  }
  str += RcvOK;
  return str + FIN;
}