ha_for_car/Modbus_RS485_Grundkonfig_Arduino
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modified: include/ModbusSlaveConfigToEEPROM.h

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modified:   src/main.cpp

main.cpp read from eeprom_konfig
ModbusSlaveConfigToEEPROM.h write-Protection SetBaudRate
This commit is contained in:
chschloetel 2024-11-02 17:24:05 +01:00
parent 1c34032bc3
commit 4c0b8aaa74
2 changed files with 19 additions and 4 deletions
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18
include/ModbusSlaveConfigToEEPROM.h
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@ -26,6 +26,11 @@ private:
static const int BAUD_RATE_ADDRESS = 1; // Speicheradresse für Baudrate
static const int MAX_BAUD_RATE = 115200; // Maximal unterstützte Baudrate
static const int MAX_MODBUS_ID_ADDRESS = 254; // Maximal unterstützte Baudrate
unsigned long lastWriteTimeID = 0; // Last write time for Modbus ID
unsigned long lastWriteTimeBaud = 0; // Last write time for Baud rate
const unsigned long WRITE_INTERVAL = 120000; // 2 minutes in milliseconds
};
/*
Konstruktor: Der Konstruktor initialisiert die Modbus-ID und die Baudrate auf Standardwerte (1 und 9600),
@ -43,7 +48,12 @@ ModBusConfig::ModBusConfig() {
void ModBusConfig::SetModbusID(int ID) {
if (ID >= 0 && ID <= MAX_MODBUS_ID_ADDRESS) { // Überprüfung, dass ID im gültigen Bereich liegt
EEPROM.write(MODBUS_ID_ADDRESS, ID);
unsigned long currentTime = millis();
if (currentTime - lastWriteTimeID >= WRITE_INTERVAL) { // Only write if enough time has passed
EEPROM.write(MODBUS_ID_ADDRESS, ID);
lastWriteTimeID = currentTime;
}
//EEPROM.write(MODBUS_ID_ADDRESS, ID);
} else {
Serial.println("Ungültige Modbus-ID. ID muss zwischen 0 und 255 liegen.");
}
@ -51,11 +61,15 @@ void ModBusConfig::SetModbusID(int ID) {
void ModBusConfig::SetBaudRate(int BAUDRATE) {
int dividedBaudrate = BAUDRATE / 100;
unsigned long currentTime = millis();
// Überprüfung, dass Baudrate im gültigen Bereich liegt
if (BAUDRATE > 0 && BAUDRATE <= MAX_BAUD_RATE) {
if (dividedBaudrate != EEPROM.read(BAUD_RATE_ADDRESS)) {
EEPROM.write(BAUD_RATE_ADDRESS, dividedBaudrate);
if (currentTime - lastWriteTimeBaud >= WRITE_INTERVAL) {
EEPROM.write(BAUD_RATE_ADDRESS, dividedBaudrate);
lastWriteTimeBaud = currentTime;
}
}
} else {
Serial.println("Ungültige Baudrate. Baudrate muss zwischen 0 und 115200 liegen.");

5
src/main.cpp
View File

@ -88,7 +88,7 @@ uint8_t fReadInputRegister(uint8_t fc, uint16_t address, uint16_t length) {
slave.writeRegisterToBuffer(i, millis() / 1000); // Zeit in Sekunden
break;
case 1:
slave.writeRegisterToBuffer(i, SERIAL_BAUDRATERS485); // Baudrate
slave.writeRegisterToBuffer(i, modbusConfig.GetBaudRate()); // Baudrate
break;
case 2:
slave.writeRegisterToBuffer(i, modbusConfig.GetModbusID()); // Slave-ID aus der ModBusConfig-Klasse
@ -190,7 +190,8 @@ void setup() {
slave.cbVector[CB_READ_DISCRETE_INPUTS] = fReadCoilRegister;
slave.cbVector[CB_READ_INPUT_REGISTERS] = fReadInputRegister;
slave.cbVector[CB_WRITE_HOLDING_REGISTERS] = fWriteHoldingRegister;
slave.cbVector[CB_READ_HOLDING_REGISTERS] = fReadHoldingRegister;//slave.cbVector[CB_WRITE_INPUT_REGISTERS] = fWriteInputRegister; // Registrierung der Schreib-Funktion
slave.cbVector[CB_READ_HOLDING_REGISTERS] = fReadHoldingRegister;
//slave.cbVector[CB_WRITE_INPUT_REGISTERS] = fWriteInputRegister; // Registrierung der Schreib-Funktion
pinMode(OutPutPin, OUTPUT);
digitalWrite(OutPutPin, LOW);