DAQ Assist and the graphic representation

A very simple problem...

Very new to LabView, and I fight with wiring to the top of my Daq Assistant, in order for a chart data of a load cell. I have plugged my scale to the acquisition of data and you want to measure strength readings over a period of time / when I press stop. When I run my program it graphic only a finite number of readings and then clears the graph to copy the new readings on top. I put my chart outside the while loop so that it would be graphic a reading at the same time as they were read, but it does not work. If my son is not what is wrong, I feel that my time parameters for the Daq Assistant is not appropriate (and I do not know how to set those either.) I don't understand the description/effects rates and samples to read.

Thanks for your help.

AFLR wrote:

A very simple problem...

Very new to LabView, and I fight with wiring to the top of my Daq Assistant, in order for a chart data of a load cell. I have plugged my scale to the acquisition of data and you want to measure strength readings over a period of time / when I press stop. When I run my program it graphic only a finite number of readings and then clears the graph to copy the new readings on top. I put my chart outside the while loop so that it would be graphic a reading at the same time as they were read, but it does not work. If my son is not what is wrong, I feel that my time parameters for the Daq Assistant is not appropriate (and I do not know how to set those either.) I don't understand the description/effects rates and samples to read.

Thanks for your help.

Hi, AFLR,.

I think the settings are fine, you have defined DAQ to read 100 samples at a rate of 100samples per second, you will get 100 samples per second.

Now to maintain the previous data in the graph (which is not the nature of the chart), you will need to keep by writing additional code.

If you already know:

1. SHIFT registers and

2. waveform components

You can easily implement this requirement, find the attached VI for your reference.

Tags: NI Software

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