[EthercatDevice_DmpAIQ_Generic]
Description
Read the voltage value of the specified analog input channel on the EtherCAT slave device.
Derived Class:
| Class Name | Vendor ID | Product Code | Input Channels | Output Channels |
| EthercatDevice_QECR11A44S | 0x00000bc3 | 0x0086d880 | 4 | 4 |
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.