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Description
I try this library to Arduino Mega 2560, but can not respond, and i try to arduino nano it success.
#include <ArduinoRS485.h> // ArduinoModbus depends on the ArduinoRS485 library
#include <ArduinoModbus.h>
const int numCoils = 10;
const int numDiscreteInputs = 10;
const int numHoldingRegisters = 10;
const int numInputRegisters = 10;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
if (!ModbusRTUServer.begin(1, 9600)) {
//Serial.println("Failed to start Modbus RTU Server!");
while (1);
}
ModbusRTUServer.configureHoldingRegisters(0x00, numHoldingRegisters);
}
void loop() {
ModbusRTUServer.poll();
// put your main code here, to run repeatedly:
for (int i = 0; i < numHoldingRegisters; i++) {
ModbusRTUServer.holdingRegisterWrite(i, 12345);
}
}