scopech0 daqmx channel

[AnaNavarro]

Hi,

I want to acquire the signal from the oscilloscope of an ELVIS II+, therefore I am using the scopeCh0 physical channel. I have troubles using the daqmx blocks. I tried to configure the channel as an analog input, but I am getting an error about an offset, that does not have sense to me. Can anyone help me with an example or ideas? Use the DAQ assistant is not an option. Thanks.

[DavidPrrs]

Hello AnaNavarro,

Did this error appear if you use the NI ELVISmx soft front panels?

NI ELVISmx 14.0 for NI LabVIEW 2011, 2012, 2013, and 2014:

http://www.ni.com/download/ni-elvismx-14.0/4801/en/

Additional info:

Getting Started Guide for NI ELVIS II/II+:

http://www.ni.com/tutorial/14502/en/

Let me know your comments, regards.

[MarisolM]

Hi Ana.. .

You don't need to use the DAQmx blocks. 

Although the ELVIS does have a DAQ board inside of it, the driver allows you to use the NI ELVISmx Osciloscope in LabVIEW without all the configuring you would need in DAQmx.

I would suggeset you use the express VI to obtain the measurement;

if you do so, you will get the following screen, shere you will ber able to adjunst the range, sample rate, triggering, rate and in the advanced configuration tab you can also add a vertical offset.

Hope this helps

Greetings

[AnaNavarro]

Hi, thanks for the help.

The NI ELVISmx oscilloscope  works great. But I really would like to configure the channel using the DAQmx blocks, because I do not need all the functions available in the NI ELVISmx, I just need to acquire the data from the bnc oscilloscope. I read in the ELVIS manual that the timing block have to be setup with finite samples and that the physical channel of the bnc oscilloscope in the ELVIS II+ is scopeCh0, but I can not configure correctly the channel. Here is a printscreen of my block diagram and the error that I am getting. Thanks for the help.

[Manushak]

The reason is for this error is system language, more precisely, the customize format of your system. You have to choose Decimal symbol as dot (.).