ESP Reading more than one Address - Modbus RS485

[gareth_c82]

Good day,

I have 2 Byte Arrays that I want to read on an RS485 Device. Reading one is working fine, but it does not allow me to read another one. I have different Addresses for the Data Reading.

Please see below Data I am trying to read.

byte data1 = {0x7E, 0x01, 0x01, 0x00, 0xFE, 0x0D};
byte data2 = {0x7E, 0x01, 0xDC, 0x03, 0x06, 0x00, 0x00, 0xC2, 0x0D};

As soon as the first Data is read, it blocks half the data and then reads the next, and only provides half the Data from the first request.

I am using ESP32 with RS485 to TTL YX-G485

[gareth_c82]

void loop() {

unsigned long currentTime = millis();

struct commands_t {
byte data1 = {0x7E, 0x01, 0x01, 0x00, 0xFE, 0x0D};
// byte data2 = {0x7E, 0x01, 0xDC, 0x03, 0x06, 0x00, 0x00, 0xC2, 0x0D};
} commands;

int i;
int len=6;

Serial.println("SEND DATA");
for(i = 0 ; i < len ; i++){
Serial2.write(msg[i]);
Serial.print("[");
Serial.print(i);
Serial.print("]");
Serial.print("=");
Serial.print(String(msg[i], HEX));
}
len = 0;
Serial.println();

int a = 0;
while(Serial2.available())
{
ByteArray[a] = Serial2.read();
a++;
}

int b = 0;
String registerHex;
String registerDec;
Serial.println("DATA RECEPTION - RECEPCIÓN DATOS");
for(b = 0 ; b < a ; b++){
Serial.print("[");
Serial.print(b);
Serial.print("]");
Serial.print("=");

  registerHex = String(ByteArray[b], HEX); 
  Serial.print("H: ");  
  Serial.print(registerHex);
  
  registerDec = String(ByteArray[b], DEC);
  Serial.print("D: ");
  Serial.print(registerDec);

}
Serial.println();

Reading them Individually works fine but when i try to read both of them, they dont give all the information.

[gilshultz]

Do you have both ends of the link configured for the same type of data structure? I thought my vision was messed up but apparently you did not follow the forum guidelines and use the </> things to post your code so myself and many others will not bother to read it. Best to read the forum guidelines first then try again.

[gareth_c82]

Thank you