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Plot 2's compliment

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Yes I will please give me a days time. Need to go to lab tomorrow and do it. I will asap.

 

Thanks for the help so far.

 

 

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 11 of 23
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The below attachment shows:

 

1. The actual waveform generated by another software ( displayed as two's complement formaty )

 

2. The waveform in my labview

 

3. the code showing the output connecting to the waveform ...

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 12 of 23
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Since your data seem to wrap at around 64k, it seems that the correct representation would be I16, NOT I32.

 

Can you attach a VI that contains the I32 array with real data in the bad waveform graph? SImply take the VI, run it so the graph shows data, "right-click the graph...data operations...make current values default", save under a new name and attach the VI. If you want, you can delete all code except the graph terminal.

 

Maybe split the I32 number and cast the lower half to I16, for example.

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Message 13 of 23
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here it is , I hope this is what you asked for.

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 14 of 23
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sorry this one!

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 15 of 23
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Your graphs still do not contain any default data as instructed.

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Message 16 of 23
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Sorry ... is this what u wer asking for ? I dont see any options called data operations when I right click. But this is how I could export the data

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 17 of 23
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@abikutn wrote:

Sorry ... is this what u wer asking for ? I dont see any options called data operations when I right click.


The option is only available in edit mode, i.e. after you stop the VI.

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Message 18 of 23
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Ok now I get what you were saying. Apologies since I am new to LV.

Abhilash S Nair

Research Assistant @ Photonic Devices and Systems lab

[ LabView professional Development System - Version 11.0 - 32-bit ]

LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021

OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
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Message 19 of 23
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Solution
Accepted by abikutn

Yes, using the lower half as I16 graphs the data correctly. (maybe the dll node and it's code is configured incorrectly, no way to tell).

 

 

(The attached VI has the data from your graph as diagram constant.)

 

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Message 20 of 23
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