DAQmx Change Detection with Filter /CVI 7.1

[Steffen.Schmidt]

Hi,

I want to use the digital filter for one line in a set of lines that I use in one channel for all lines.
In the function help I find this description: "... You can enable the filter on a line-by-line basis. You do not have to enable the filter for all lines in a channel."
But when I use the function only for one line in a channel I get an error that it would not be possible to set this property for only one specific line.

Do you happen to know this problem? Is it dependant on the device?

[Jochen]

I'm pretty sure that this is a hardware dependent feature. What is the type of your board? Which version of DAQmx are you using?

Regards,

Jochen Klier
National Instruments Germany

[Steffen.Schmidt]

I'm using a 6514 with DAQmx 7.1

[Jochen]

The digital filter on the 6514 should be selectable per line. I haven't found an issue with that in our internal R&D resources but maybe an upgrade to NI-DAQ 7.3.1 solves the problem.
If not please post the exact error number and description and the function call that generates the error.

Thanks,

Jochen

[Steffen.Schmidt]

Hi Jochen,

thanks for your help... I will try the update and then post the result. In case it still malfunctions I'll post the error number.
This will take a week, because I'm off next week.

So long,
Steffen

[Steffen.Schmidt]

I couldn't try NIDAQmx 7.3.1. yet because of problems downloading the files... But I verified the version number of the DAQmx drivers I use which is in fact 7.3.0.
The exact error code is -200641: "Property cannot be set separately for each line. When setting this property specify a virtual channel as the active channel."

Greez
Steffen