EthercatDevice.pdoRead64()

[Ethercat Device]

描述

Read 64-bit input process data which starting from the specified offset for such EtherCAT slave device.

語法

uint64_t pdoRead64(uint32_t offset);

參數

• [in] uint32_t offset
  The offset value of input process data for such EtherCAT slave device.

回傳值

Return the 64-bit input process data.

備註

This function must be called after a successful execution of EthercatMaster::start(). This function is non-blocking and can be called within the Cyclic Callback.

範例

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_Generic slave;

void setup() {
  Serial.begin(115200);

  master.begin();
  slave.attach(0, master);
  master.start(1000000);
}

void loop() {
  Serial.print("Value: ");
  uint64_t value = slave.pdoRead64(0);
  char buffer[21];
  sprintf(buffer, "%llu", value);

  Serial.println(buffer);
  delay(1000);
}

Please see the EtherCAT Library User Manual for more QEC EtherCAT instructions and API usage.