EEPROM funktion komplett entfernt
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src/main.cpp
137
src/main.cpp
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#include <Arduino.h>
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#include <Wire.h>
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#include <ModbusSlave.h>
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#include <EEPROM.h>
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#include <SHT2x.h>
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// Default configurations for Modbus ID and baud rate
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#define DEFAULT_SLAVE_ID 8
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#define DEFAULT_BAUDRATE 9600
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// Statische Definition von Modbus-ID und Baudrate
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#define SLAVE_ID 8
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#define SERIAL_BAUDRATERS485 9600
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#define SERIAL_PORTRS485 Serial
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// RS485-Konfiguration
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#define RS485_CTRL_PIN 8
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#define OutPutPin 9
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// Arrays for Modbus register handling
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// Register Arrays für Modbus
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uint8_t ReadCoilRegister[] = {0, 1, 2};
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uint8_t output_pins[] = {0, 1};
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uint8_t ReadInputRegister[] = {0, 1, 2, 3, 4, 5, 6, 7};
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uint8_t output_pins[] = {0,1};
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uint8_t ReadInputRegister[] = {0,1,2,3,4,5,6,7};
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uint8_t ReadCoilRegister_size = sizeof(ReadCoilRegister) / sizeof(ReadCoilRegister[0]);
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uint8_t output_pins_size = sizeof(output_pins) / sizeof(output_pins[0]);
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uint8_t ReadInputRegister_size = sizeof(ReadInputRegister) / sizeof(ReadInputRegister[0]);
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// EEPROM memory locations
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const int EEPROM_ADDR_SLAVE_ID = 0;
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const int EEPROM_ADDR_BAUDRATE = EEPROM_ADDR_SLAVE_ID + sizeof(uint8_t);
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int ValueInputOne = 0;
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// Modbus object
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#ifdef RS485_CTRL_PIN
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Modbus slave(SERIAL_PORTRS485, DEFAULT_SLAVE_ID, RS485_CTRL_PIN);
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Modbus slave(SERIAL_PORTRS485, SLAVE_ID, RS485_CTRL_PIN);
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#else
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Modbus slave(SERIAL_PORTRS485, DEFAULT_SLAVE_ID);
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Modbus slave(SERIAL_PORTRS485, SLAVE_ID);
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#endif
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// SHT21 Sensor object
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// SHT2x SHT21EnvSensor;
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// EEPROM configuration loading
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void loadConfig(uint8_t &slaveID, uint32_t &baudRate) {
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EEPROM.get(EEPROM_ADDR_SLAVE_ID, slaveID);
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EEPROM.get(EEPROM_ADDR_BAUDRATE, baudRate);
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if (slaveID == 0xFF) {
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slaveID = DEFAULT_SLAVE_ID;
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EEPROM.put(EEPROM_ADDR_SLAVE_ID, slaveID);
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// Funktion zur Steuerung der digitalen Ausgänge über Modbus
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uint8_t writeDigitalOut(uint8_t fc, uint16_t address, uint16_t length) {
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if (address > output_pins_size || (address + length) > output_pins_size) {
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return STATUS_ILLEGAL_DATA_ADDRESS;
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}
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if (baudRate == 0xFFFFFFFF) {
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baudRate = DEFAULT_BAUDRATE;
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EEPROM.put(EEPROM_ADDR_BAUDRATE, baudRate);
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for (uint16_t i = 0; i < length; i++) {
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if (slave.readCoilFromBuffer(i) == 1) {
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digitalWrite(OutPutPin, HIGH);
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} else {
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digitalWrite(OutPutPin, LOW);
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}
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}
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return STATUS_OK;
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}
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// Write digital output function
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uint8_t writeDigitalOut(uint8_t fc, uint16_t address, uint16_t length) {
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if (address >= output_pins_size || (address + length) > output_pins_size) {
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// Funktion zum Lesen von Coil-Register-Werten
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uint8_t fReadCoilRegister(uint8_t fc, uint16_t address, uint16_t length) {
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if (address > ReadCoilRegister_size || (address + length) > ReadCoilRegister_size) {
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return STATUS_ILLEGAL_DATA_ADDRESS;
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}
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for (uint16_t i = 0; i < length; i++) {
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if (i == 0) {
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digitalWrite(OutPutPin, slave.readCoilFromBuffer(i) ? HIGH : LOW);
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slave.writeCoilToBuffer(i, digitalRead(OutPutPin));
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} else if (i == 1) {
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slave.writeCoilToBuffer(i, 0);
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} else if (i == 2) {
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slave.writeCoilToBuffer(i, 1);
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}
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}
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return STATUS_OK;
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}
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// Read Coil Register
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uint8_t fReadCoilRegister(uint8_t fc, uint16_t address, uint16_t length) {
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if (address >= ReadCoilRegister_size || (address + length) > ReadCoilRegister_size) {
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return STATUS_ILLEGAL_DATA_ADDRESS;
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}
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for (uint16_t i = 0; i < length; i++) {
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slave.writeCoilToBuffer(i, (i == 0) ? digitalRead(OutPutPin) : (i == 1 ? 0 : 1));
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}
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return STATUS_OK;
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}
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// Read Input Register
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// Funktion zum Lesen von Input-Register-Werten
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uint8_t fReadInputRegister(uint8_t fc, uint16_t address, uint16_t length) {
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if (address >= ReadInputRegister_size || (address + length) > ReadInputRegister_size) {
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if (address > ReadInputRegister_size || (address + length) > ReadInputRegister_size) {
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return STATUS_ILLEGAL_DATA_ADDRESS;
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}
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float temperatur = 21.21; // Placeholder, replace with sensor reading
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float humidity = 55.55; // Placeholder, replace with sensor reading
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for (uint16_t i = 0; i < length; i++) {
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float temperatur = 21.21; // Dummy-Wert für Temperatur
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float humidity = 55.55; // Dummy-Wert für Luftfeuchtigkeit
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switch (i) {
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case 0:
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slave.writeRegisterToBuffer(i, millis() / 1000); // Time in seconds
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slave.writeRegisterToBuffer(i, millis() / 1000); // Zeit in Sekunden
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break;
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case 1:
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slave.writeRegisterToBuffer(i, SERIAL_BAUDRATERS485);
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slave.writeRegisterToBuffer(i, SERIAL_BAUDRATERS485); // Baudrate
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break;
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case 2:
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slave.writeRegisterToBuffer(i, SLAVE_ID);
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slave.writeRegisterToBuffer(i, SLAVE_ID); // Slave-ID
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break;
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case 3:
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slave.writeRegisterToBuffer(i, static_cast<int>(temperatur * 100)); // Temperature
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case 3: {
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slave.writeRegisterToBuffer(i, static_cast<int>(temperatur * 100));
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break;
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case 4:
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slave.writeRegisterToBuffer(i, static_cast<int>(humidity * 100)); // Humidity
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}
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case 4: {
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slave.writeRegisterToBuffer(i, static_cast<int>(humidity * 100));
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break;
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}
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case 5: {
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const double UG = 8314.3;
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const double mw = 18.016;
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const double K = 273.15;
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const double tp = 6.1078;
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double absolutHumidity = (100000 * mw / UG * humidity / 100 * tp *
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pow(10, (7.5 * temperatur) / (239 + temperatur)) / (temperatur + K)) * 100;
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const double UG = 8314.3; // J/(kmol*K), universelle Gaskonstante
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const double mw = 18.016; // kg/kmol, Molekulargewicht des Wasserdampfes
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const double K = 273.15; // Konstante für Kelvin-Umrechnung
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const double tp = 6.1078; // hPa, Triplettpunkt von Wasser
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double absolutHumidity = (100000 * mw / UG * humidity / 100 * tp * pow(10, ((7.5 * temperatur) / (239 + temperatur))) / (temperatur + K)) * 100;
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slave.writeRegisterToBuffer(i, static_cast<int>(absolutHumidity));
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break;
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}
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case 6:
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slave.writeRegisterToBuffer(i, 5); // Light level placeholder
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slave.writeRegisterToBuffer(i, 5); // Platzhalter für Helligkeitswert
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break;
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case 7:
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slave.writeRegisterToBuffer(i, digitalRead(OutPutPin));
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slave.writeRegisterToBuffer(i, digitalRead(OutPutPin)); // Zustand des Ausgangs
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break;
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}
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}
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return STATUS_OK;
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}
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void setup() {
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uint8_t slaveID;
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uint32_t baudRate;
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loadConfig(slaveID, baudRate);
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SERIAL_PORTRS485.begin(baudRate);
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slave.begin(baudRate);
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pinMode(RS485_CTRL_PIN, OUTPUT);
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pinMode(OutPutPin, OUTPUT);
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digitalWrite(OutPutPin, LOW);
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digitalWrite(RS485_CTRL_PIN, LOW); // RS485-Empfang aktivieren
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SERIAL_PORTRS485.begin(SERIAL_BAUDRATERS485);
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slave.begin(SERIAL_BAUDRATERS485);
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// Modbus-Handler registrieren
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slave.cbVector[CB_WRITE_COILS] = writeDigitalOut;
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slave.cbVector[CB_READ_DISCRETE_INPUTS] = fReadCoilRegister;
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slave.cbVector[CB_READ_INPUT_REGISTERS] = fReadInputRegister;
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pinMode(OutPutPin, OUTPUT);
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digitalWrite(OutPutPin, LOW);
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}
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void loop() {
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slave.poll();
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slave.poll(); // Verarbeitet ankommende Modbus-Anfragen
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}
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