Read The Autonics data counter Autonics CT6S-1p4t data counter via RS485 not read data

[bp081195]

#include <ModbusMaster.h>
#define CT6S Serial1
// instantiate ModbusMaster object
ModbusMaster node1;

uint8_t result1;
static uint32_t i;
uint8_t j, result;
uint16_t data[8];
unsigned int regs[2];
const int Pin_Counter = 1;
int datacounter;

void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
CT6S.begin(9600);
// Modbus slave ID 1
node1.begin(1, CT6S);
}

void loop()
{

unsigned int datacounter = analogRead (Pin_Counter);
Serial.println(datacounter);
delay(100);

// Read 16 registers starting at 0x3100)
result = node1.readInputRegisters(0x1000, 13);
if (result == node1.ku8MBSuccess)
{
Serial.print("Counter: ");
Serial.println(node1.getResponseBuffer(1004));
Serial.print("Vload: ");
Serial.println(node1.getResponseBuffer(1006));
Serial.print("Pload: ");
Serial.println((node1.getResponseBuffer(0x1007) +
node1.getResponseBuffer(0x1013) << 13));
}

delay(10);
}

[bp081195]

Schematic Autonics CT6S-1P4T

[bp081195]

[bp081195]

[bp081195]

[b707]

Comments in sketch contradict the code

@bp081195

// Read 16 registers starting at 0x3100)
result = node1.readInputRegisters(0x1000, 13);

0x3100 is not a 0x1000, 16 is not a 13... And none of these values match the register address pointed by the arrow in the picture in post #4.

Also take note that 0x1004 and 1004 are very different values:

@bp081195

Serial.println(node1.getResponseBuffer(1004));

Are you intended something as getResponseBuffer(0x1004) ?

What did you try to achieve in this line?

@bp081195

node1.getResponseBuffer(0x1013) << 13));

Are you understand what is <<13 means?

[bp081195]

<<13 there are a number of addresses in the address data in the RS485 communication manual book

[bp081195]

Are you intended something as getResponseBuffer(0x1004) ?

i want to read the counter data or the value that is in that address

[bp081195]

continue what is which for the correct address of the correct Rs485 communication map ?

[qubits-us]

that's address 4 length 2..
try this..

result = node1.readInputRegisters(4, 2);

if you get a successful read..
still have to combine the 2 bytes into a word..

maybe like this..

  uint16_t value = (node1.getResponseBuffer(0) << 8) | node1.getResponseBuffer(1);

good luck.. ~q

[b707]

@bp081195

<<13 there are a number of addresses in the address data in the RS485 communication manual book

nothing similar

@bp081195

Are you intended something as getResponseBuffer(0x1004) ?
i want to read the counter data or the value that is in that address

In which address - 1004 or 0x1004 ? Do you understand the difference?

Please read something about hexadecimal number format (0xNNN) - without clear understanding it and it difference with decimal numbers you will hardly can use Modbus protocol

[bp081195]

[qubits-us]

reading through the doc's source..
ModbusMaster
you don't have to combine bytes..
getResponseBuffer returns a word not a byte..
if you read 1 register, it's at getResponseBuffer (0), the second at getResponseBuffer (1) and so on..

maybe you need to combine two words into a int32??

 int32_t val = (int32_t(bWord) << 16) | int32_t(aWord);

sorry.. ~q

[bp081195]

Void loop()
{
static uint32_t val;

//set word 0 of TX buffer to least-significant word of counter (bists 15.. 0)
Node.setTransmitBuffer(0, lowWord(i));
//set word 0 of TX buffer to least-significant word of counter (bists 31.. 16)
Node.setTransmitBuffer(1, higWord(i));
//slave: write TX buffer to (2) 16-bit regsiters starting at register 0
result = node.writeMultipleRgisters(0,2)

}

i used the code above and managed to write the counter of autonics with arduino