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u6 and LJStream

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#1 biff44

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Posted 13 June 2014 - 08:28 PM

I have LJStreamUD V1.17 running with a U6.  Three analog inputs.  I have the three inputs hooked to AIN0, AIN1, and AIN2, with them all sharing a GND screw.


My LJStreamUD is set up as:

#Channels : 3

Scan Rate 50 hz


Settling factor 0

write to file filled in

data file prefix:data

current data file: none

Max file size 100,000


As I stream files build up in the folder I made my working directory


0, CH+=0, CH-=0, Range=+/-10, y=a

1, CH+=1, CH-=0, Range=+/-10, y=b

2, CH+=2, CH-=0, Range=+/-10, y=c


Time  v0  v1  v2  y0  y1  y2

then a bunch of data.


QUESTION:  can I get the .dat file to only show columns of time, v0, v1, and v2?


It shows y0 as the same value as v0, y1 as the same value as v1....

I have to strip the header off the .dat file, load it into excel as space delimited, and then delete the y0, y1, and y2 columns to use the data.  Can I just get

LJStream to record the data with the 4 columns only, leaving out y0, y1, and y2?



#2 LabJack Support

LabJack Support
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Posted 16 June 2014 - 10:01 AM

No, LJStreamUD is a simple program and does not allow you to configure the data file that way.  It always writes the raw data and scaled data.


If you have LabVIEW you could modify the source to do what you need, although most people start with "U6 easy Stream.vi" if they are going to make their own stream program in LabVIEW.

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