[Ethercat Device]
Description
Read 8-bit input process data which starting from the specified offset for such EtherCAT slave device.
Syntax
uint8_t pdoRead8(uint32_t offset);
Parameters
[in] uint32_t offset
The offset value of input process data for such EtherCAT slave device.
Return Value
Return the 8-bit input process data.
Comment
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.
Example
#include "Ethercat.h"
EthercatMaster master;
EthercatDevice_Generic slave;
void setup(){
Serial.begin(115200);
master.begin();
slave.attach(0, master);
master.start();
}
void loop() {
slave.pdoWrite8(0, 0xFF); /* Write value of byte offset 0 of slave's output process data. */
Serial.println(slave.pdoRead8(0), HEX); /* Read value of byte offset 0 of slave's input process data. */
delay(100);
}Please see the EtherCAT Library User Manual for more QEC EtherCAT instructions and API usage.