Need Help For MODBUS RS485

Projects General Guidance
2

Dear Team,

I need your support for my project Can you guide me
I m using ELMEASURE ELECTRICAL METER,I need to take a reading form that meter through RS485 ,i getting Result from that meter through MY Arduino CODE, here I attached my code
but its is hex format i dont know how to convert in FLOAT32 format
i using your software for checking its working properly can you help me for this.
bcz i struggle last 30days for this.

Please Help ME.

thanks in advance

#include <ModbusMaster.h>
#include <SoftwareSerial.h>
#include <IEEE754tools.h>
#undef int
#include <stdio.h>


#define LED_13           13  // define LED pin
#define MAX485_TX_ENABLE  7  // EIA-485 transmit control pin
#define EIA485_RX         9  // EIA-485 serial receive pin
#define EIA485_TX        10  // EIA-485 serial transmit pin

ModbusMaster node;
SoftwareSerial RS485Serial(EIA485_RX, EIA485_TX); // RX, TX

void preTransmission() {
  digitalWrite(MAX485_TX_ENABLE, true);
}

void postTransmission() {
  digitalWrite(MAX485_TX_ENABLE, false);
}

void setup() {
  pinMode(MAX485_TX_ENABLE, OUTPUT);
  digitalWrite(MAX485_TX_ENABLE, false);

  Serial.begin(9600);
  RS485Serial.begin(9600);

  node.begin(1, RS485Serial);
  node.preTransmission(preTransmission);
  node.postTransmission(postTransmission);

  Serial.print("My Little SCADA System\n");
}

void loop() {
  uint32_t result;

  result = node.readHoldingRegisters(100, 20);//40000 40100 0X9CA4

  if (result == node.ku8MBSuccess)
  {
    Serial.print("Reg 1: ");
    Serial.println(node.getResponseBuffer(1));
    uint16_t x=node.getResponseBuffer(1);
    Serial.println(x);
    Serial.println(x, HEX);
    Serial.print("Reg 2: ");
    Serial.println(node.getResponseBuffer(17));
    uint16_t xy =node.getResponseBuffer(17);
    Serial.println(xy);
    Serial.println(xy, HEX);
    
  }
  else {
  Serial.print("Error getting data\n");
  }

  delay(1000);
}

sketch_may28a.ino (1.4 KB)