EthercatDevice_DmpAIQ.voltageRead()

[EthercatDevice_DmpAIQ_Generic]

Description

Read the voltage value of the specified analog input channel on the EtherCAT slave device.

Derived Class:

Syntax

double voltageRead(int ch);

Parameters

• [in] int ch
  The specified analog input channel on the EtherCAT slave device.

Return Value

Return the voltage value expressed in volts (V) as a double.

Comment

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

Example

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_QECR11A44S slave;

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

void loop() {
  Serial.print("AIO: ");
  Serial.println(slave.voltageRead(0));
  delay(1000);
}

Please see EthercatDevice_DmpAIQ_Generic Class for more QEC AIO slave instructions and API usage.