EthercatDevice_QECRXXUN01.getSystemPowerVoltage()

class EthercatDevice_QECR11UN01;
/* RJ45 power [1, 1]. */
class EthercatDevice_QECR00UN01;
/* RJ45 power [0, 0]. */

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_QECR11UN01 slave;

void setup(void) {
    Serial.begin(115200);
    while (!Serial);
    
    master.begin();
    slave.attach(0, master);
    master.start();

    Serial.println(slave.getSystemPowerVoltage());
}

void loop() {}