MajorDoMo

Код: Выделить всё

#include <ModbusMaster.h>

#include <SoftwareSerial.h>


#define BAUD_RATE 9600

SoftwareSerial swSer(13, 15, false, 256);

/*!

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);


Serial.begin(BAUD_RATE);

swSer.begin(BAUD_RATE);


// Modbus slave ID 1

node.begin(248, Serial);

// Callbacks allow us to configure the RS485 transceiver correctly

node.preTransmission(preTransmission);

node.postTransmission(postTransmission);

}


bool state = true;


void loop()

{

uint8_t j, result;

uint16_t data[6];


// Read 16 registers starting at 0x3100)

result = node.readInputRegisters(0x0000, 10);


if (result == node.ku8MBSuccess)

{

for (j = 0; j < 10; j++)

{

data[j] = node.getResponseBuffer(j);

}

swSer.print("Napr: ");

float napr = node.getResponseBuffer(0x00);

napr = napr / 10.0f;

swSer.println(napr);

unsigned int responseHigh = (unsigned int) data[2];

unsigned int responseLow = (unsigned int) data[1];

unsigned int amper = (responseHigh) + responseLow;

uint32_t result = (uint32_t)responseHigh << 16 + (uint32_t)responseLow;

swSer.print("Old Method Current A: ");

swSer.println(amper);

swSer.print("New Method Current A: ");

swSer.println(result);

responseHigh = (unsigned int) data[4];

responseLow = (unsigned int) data[3];

result = (uint32_t)responseHigh << 16 + (uint32_t)responseLow;

swSer.print("Power W: ");

swSer.println(result);


responseHigh = (unsigned int) data[6];

responseLow = (unsigned int) data[5];

swSer.print("Energy Wh: ");

result = (uint32_t)responseHigh << 16 + (uint32_t)responseLow;

swSer.println(result);

swSer.print("Freq Hz: ");

float freq = node.getResponseBuffer(0x07);

freq = freq / 10.0f;

swSer.println(freq);

swSer.print("PowerFactor : ");

swSer.println((node.getResponseBuffer(0x08)));

swSer.print("Alarm Status 1 - is alarm, 0 - is not alarm : ");

swSer.println((node.getResponseBuffer(0x09)));

swSer.println("=========================================================");

swSer.println();

delay(200);


}


}

Код: Выделить всё

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