Measurement-computing DAQFlex User Guide Manual do Utilizador descarregar pdf (Página 12)

DAQFlex Software User's Guide Using DAQFlex Software

Reading an analog input channel

// Read the value of analog input channel 0

String[] Devices;

DaqDevice MyDevice;

DaqResponse Response;

try

{

// Get a list of message-based DAQ devices

Devices = DaqDeviceManager.GetDeviceNames(DeviceNameFormat.NameAndSerno);

// Get a DaqDevice object for device 0

MyDevice = DaqDeviceManager.CreateDevice(Devices[0]);

// Send device messages using the DaqDevice object

MyDevice.SendMessage("AI{0}:RANGE=BIP10V");

MyDevice.SendMessage("AI:CAL=ENABLE");

MyDevice.SendMessage("AI:SCALE=ENABLE");

// Read and display the daq response

Response = MyDevice.SendMessage("?AI{0}:VALUE");

label1.Text = Response.ToString();

}

catch (Exception ex)

{

// handle error

label1.Text = ex.Message;

}

' Read the value of analog input channel 0

Dim Devices As String ()

Dim MyDevice As DaqDevice

Dim Response As DaqResponse

Try

' Get a list of message-based DAQ devices

Devices = DaqDeviceManager.GetDeviceNames(DeviceNameFormat.NameAndSerno)

' Get a DaqDevice object for device 0

MyDevice = DaqDeviceManager.CreateDevice(Devices(0))

' Send device messages using the DaqDevice object

MyDevice.SendMessage("AI{0}:RANGE=BIP10V")

MyDevice.SendMessage("AI:CAL=ENABLE")

MyDevice.SendMessage("AI:SCALE=ENABLE")

' Read and display the daq response

Response = MyDevice.SendMessage("?AI{0}:VALUE")

Label1.Text = Response.ToString()

Catch Ex As Exception

' handle error

Label1.Text = Ex.Message()

End Try

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