error in DAQ

[amatuer_actuator]

Hi im getting an message in labview when i connect configure my voltage output task on DAq.Can anyone help.

THanks,

Message Edited by amatuer_actuator on 03-05-2008 05:44 PM

[Dennis_Knutson]

The message is pretty clear. You've got two channels in the output task but are not providing two channels of data to write. Since you have not provided the actual VI and there is nothing to see in the image about what or how you are writing to the DAQmx task, I can only speculate that you are providing a scalar input instead of an array (one element per channel).

[amatuer_actuator]

Hi

Thanks for your reply.I didn't quite understand that.I just want one channel of data.All i want is a voltage output signal to generate.

[Dennis_Knutson]

Open your DAQ Assistant. You've got two channels there. Remove the one you don't want.

[amatuer_actuator]

hey

thanks for the reply.But i still get that error even when i have removed that extra voltage channel.

And also what does this error in the attached file mean?

It says attempted writing data that is too small or too large?

[Dennis_Knutson]

Well, yeah you're getting that error. You've configured the DAQ Assistant for a max output of 5 volts. You've configured the Simulate Signal for a 5 volt amplitude. As soon as your offset is non-zero, the amplitude is going to going over 5 volts. The amplitude and offset are added together.