Send and Read packet xbee AT mode

Hi all, i have a simple network created using Xbee series 2 devices.
My network is very simple, my end-device with Arduino UNO read a temperature and Lightning, display this value into LCD and send using Xbee to a coordinator. It is setting for sleep and wake up using PIN hibernation.
It is setting like End-Device AT mode.

I try to send a Remote AT command with XCTU from coordinator to my end device and it parse this command and response.

What i try to do is parse received packet into my arduino code and decide what response ( for example discharge it).

it is possible to do using only one Serial? Arduino UNO and Xbee are connected with Xbee shield.

I have try using this code but arduino don't display the packet received from the Coordinator.

This is my code:

#include <avr/sleep.h>
#define XBEE_sleepPin 7
#include <LiquidCrystal.h>

//Sensor variable
int sensorPin = 0;
int fotoResistenzaPin = A1;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
String data = "";
String name = "Arduino1";

//Time Variable
unsigned long seconds = 1000L;
unsigned long minutes = seconds * 60;
unsigned long hours = minutes * 60;

void setup() {
  pinMode(fotoResistenzaPin, INPUT);
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Status:");
  lcd.setCursor(0, 1);
  lcd.print("Connected");
  Serial.begin(9600);
  delay(2000);
}

void xbeesleep() {
  delay (300);
  pinMode (XBEE_sleepPin, OUTPUT);   // put XBee to sleep
  digitalWrite(XBEE_sleepPin, HIGH); // Setting this pin to LOW turns off the pull up resistor, thus saving precious current
  //delay(10 * minutes);
  delay(5 * seconds);
}

void xbeewake() {
  pinMode(XBEE_sleepPin, OUTPUT);  // Set the "wake-up pin" to output
  digitalWrite(XBEE_sleepPin, LOW); // wake-up XBee
  delay(10 * seconds); //make sure that XBee is ready, time to connect to Xbee Coordinator

}


void loop() {
 //wait message 
  if (Serial.available()>0) {
    
	//see if it is a Xbee packet
	if (Serial.read() == 0x7E) {

      for (int i = 0; i < 15; i++) {
        byte skip = Serial.read();
        Serial.println(skip);
        
		//check if it is a Remote AT commnad
		if (skip == 0x17) {
		
			//do something when i find the Remote AT command packet
          lcd.setCursor(0, 0);
          lcd.print("Remote AT command ");
        }
      }
    }
  }
  
  xbeewake();
  int reading = analogRead(sensorPin);
  int val = analogRead(fotoResistenzaPin);
  float voltage = reading * 5.0;
  voltage /= 1024.0;

  float temperatureC = (voltage - 0.5) * 100 ;
  data = name + ',' + temperatureC + ',' + val;
  if (Serial) {
    Serial.println(data);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Temp: ");
    lcd.print(temperatureC);
    lcd.print(" C");
    lcd.setCursor(0, 1);
    lcd.print("Lightning: ");
    lcd.print(val);
  }
  else {
    lcd.setCursor(0, 0);
    lcd.print("Serial Error ");
    lcd.setCursor(0, 1);
    lcd.print("Stop Trasmission");
  }

  xbeesleep();

}

Please can someone help me? I have write a code to read some packet and it works but it can't read Remote AT command.

It is possible to decide which packet accept on the address?