Error 50103 during continuous acquisition and triggering

Hi all

I'm ai0 data acquisition: 3 4 analog inputs (voltage) in continuous mode, display the data (tables and graphs) and data flow to TDMS files in a loop of the consumer.

The same time, I want to be able to save "time windows" with my purchase. For example, I want to be probe ai1:2 and when the voltage exceeds a certain value, that is to say 0, 5V, I can trigger with analogue reference and get a certain amount of samples (finished samples) after and before (samples before). I am aware of how I can achieve this, an example of NOR is more useful: http://sine.ni.com/devzone/cda/epd/p/id/4840 .

The problem is this: I don't want to stop the continuous acquisition which is already underway. If I try to start a new task (somehow "copy & paste" the example) that I get, as expected, error-50103, "the specified resource is reserved.

So, is it possible to accomplish this task without having to fall on reserving resources problem? And if there is not a way could you suggest a way to make this front trigger and trigger sampling?

Please find enclosed a snapshot of the code. I use a PCI-6254 with two SCB-68.

Thank you and looking forward for you advice!

Best regards

Panos

Have you seen this?

Tags: NI Software

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