ModbusMasterNode.available()

#include <Modbus86.h>
  
ModbusMaster bus1;
ModbusMasterNode node1;
 
uint8_t result;
     
uint8_t j = 0;
uint16_t data[6];
     
void setup()
{
    while(!Serial);
    Serial1.begin(115200);
    bus1.begin(MODBUS_RTU, Serial1);
    node1.attach(16, bus1);
 
    result = node1.readHoldingRegisters(0, 6);
    if (result != MODBUS_SUCCESS) {
        Serial.print("readHoldingRegisters => ErrorCode: ");
        Serial.println(result);
    } else {
        Serial.print("From Holding Register receiveData: ");
        while (node1.available() > 0) {
            data[j++] = node1.receive();
            Serial.println(data[j - 1]);
        }
    }
}
  
void loop() {}