hi i am getting modbus poll pc application timeout error Could you please help me #87
Description
#include <ModbusSlave.h>
#include <SoftwareSerial.h>
SoftwareSerial RS485Serial(10, 11); // RX, TX
Modbus slave(RS485Serial, 1, 2);
int led = 12;
int dl_ro = 2;
void setup() {
pinMode(dl_ro, OUTPUT);
pinMode(led, OUTPUT);
slave.cbVector[CB_WRITE_COILS] = writeDigitalOut;
RS485Serial.begin(9600);
slave.begin(9600);
}
void loop() {
slave.poll();
}
uint8_t writeDigitalOut(uint8_t fc, uint16_t address, uint16_t length) {
Serial.print("FC=05: ");
Serial.println(fc);
Serial.println(address);
Serial.println(length);
if (address == led) {
digitalWrite(12, slave.readCoilFromBuffer(0));
}
return STATUS_OK;
}