// Include the libraries we need
#include <OneWire.h>
#include <DallasTemperature.h>
#include <ModbusRtu.h>

// Data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 12
#define TXEN  10
//
uint16_t au16data[6];

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);

// Aktivieren des ModBus-Slave
Modbus slave(14, 0, TXEN); // this is slave @1 and RS-485

// Feste Zuordnung der Sensoren über die Seriennummer
DeviceAddress Sensor0 = {0x28, 0xAA, 0xBA, 0x34, 0x13, 0x13, 0x01, 0x70};
DeviceAddress Sensor1 = {0x28, 0xAA, 0x7C, 0x35, 0x13, 0x13, 0x01, 0x41};
DeviceAddress Sensor2 = {0x28, 0xAA, 0x7A, 0x35, 0x13, 0x13, 0x01, 0xDD};
DeviceAddress Sensor3 = {0x28, 0xAA, 0x15, 0x25, 0x13, 0x13, 0x01, 0x9B};
DeviceAddress Sensor4 = {0x28, 0xAA, 0xA7, 0x32, 0x13, 0x13, 0x01, 0xE9};
DeviceAddress Sensor5 = {0x28, 0xAA, 0xD7, 0x2C, 0x13, 0x13, 0x01, 0xA9};

/*
   The setup function. We only start the sensors here
*/
void setup(void)

{
  slave.begin( 9600 ); // baud-rate at 19200

  // Start up the library
  sensors.begin();
}

/*
   Main function, get and show the temperature
*/
void loop(void)
{
  sensors.requestTemperatures(); // Send the command to get temperatures
  float modbuswert_float_0 = sensors.getTempC(Sensor0);
  au16data[0] = modbuswert_float_0 * 1000;
  float modbuswert_float_1 = sensors.getTempC(Sensor1);
  au16data[1] = modbuswert_float_1 * 1000;
  float modbuswert_float_2 = sensors.getTempC(Sensor2);
  au16data[2] = modbuswert_float_2 * 1000;
  float modbuswert_float_3 = sensors.getTempC(Sensor3);
  au16data[3] = modbuswert_float_3 * 1000;
  float modbuswert_float_4 = sensors.getTempC(Sensor4);
  au16data[4] = modbuswert_float_4 * 1000;
  float modbuswert_float_5 = sensors.getTempC(Sensor5);
  au16data[5] = modbuswert_float_5 * 1000;
  slave.poll( au16data, 6 );
}