Reading data from energy meter using RS485 to TTL converter using Arduino Atmega2560

I need to read data from the holding register of the energy meter. The registers were starting from 40101 float type. I tried to fetch the data using the RS485 to USB, where I could see the meter reading, but when I tried to read data using the RS485 ttl converter with Arduino 2560, I got an error code like 224. I have attached the code and the RS485 below.

#include <ModbusMaster.h>

/*!
  We're using a MAX485-compatible RS485 Transceiver.
  Rx/Tx is hooked up to the hardware serial port at 'Serial'.
  The Data Enable and Receiver Enable pins are hooked up as follows:
*/
#define MAX485_DE      3
#define MAX485_RE_NEG  2

// instantiate ModbusMaster object
ModbusMaster node;

void preTransmission()
{
  digitalWrite(MAX485_RE_NEG, 1);
  digitalWrite(MAX485_DE, 1);
}

void postTransmission()
{
  digitalWrite(MAX485_RE_NEG, 0);
  digitalWrite(MAX485_DE, 0);
}

void setup()
{
  pinMode(MAX485_RE_NEG, OUTPUT);
  pinMode(MAX485_DE, OUTPUT);
  // Init in receive mode
  digitalWrite(MAX485_RE_NEG, 0);
  digitalWrite(MAX485_DE, 0);

  // Modbus communication runs at 115200 baud
  Serial.begin(9600);
  Serial1.begin(9600);

  // Modbus slave ID 1
  node.begin(1, Serial1);
  // Callbacks allow us to configure the RS485 transceiver correctly
  node.preTransmission(preTransmission);
  node.postTransmission(postTransmission);
}

bool state = true;

void loop()
{
  uint8_t result;
  uint16_t data[6];
  
  result = node.readHoldingRegisters(157, 1);
  getResultMsg(result); // Interpret and print the result
}

bool getResultMsg(uint8_t result)
{
  String tmpstr2;

  switch (result) {
    case node.ku8MBSuccess:
      Serial.println("Success");
      return true;
      break;
    case node.ku8MBIllegalFunction:
      tmpstr2 = "Illegal Function";
      break;
    case node.ku8MBIllegalDataAddress:
      tmpstr2 = "Illegal Data Address";
      break;
    case node.ku8MBIllegalDataValue:
      tmpstr2 = "Illegal Data Value";
      break;
    case node.ku8MBSlaveDeviceFailure:
      tmpstr2 = "Slave Device Failure";
      break;
    case node.ku8MBInvalidSlaveID:
      tmpstr2 = "Invalid Slave ID";
      break;
    case node.ku8MBInvalidFunction:
      tmpstr2 = "Invalid Function";
      break;
    case node.ku8MBResponseTimedOut:
      tmpstr2 = "Response Timed Out";
      break;
    case node.ku8MBInvalidCRC:
      tmpstr2 = "Invalid CRC";
      break;
    default:
      tmpstr2 = "Unknown error: " + String(result);
      break;
  }
  Serial.println(tmpstr2);
  return false;
}

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