Guidance on reading Labview dashboard log files

[mrneubs]

Hi all,
I’m looking for some guidance on how to accurately read the labview logs that come from a labview dashboard. I have attached a screen shot for example.

I understand most of the chart except for one specific area. The Y-Axis on the right side of the chart has a scale for the PDP current draw. I can’t figure out which line represents the actual current draw being experienced on the robot.

Thanks in advance for the help.

[Joe_Ross]

In that picture, none of those lines are PDP current. On the right slide, under groups or plots, you can turn on the power/pdp data.

[AriMB]

Using the Plots tab, you can turn on the graphs for individual PDP branch circuits’ current draw. You can also turn on the total PDP current draw, and turn on/off each plot currently on by default. Using the Groups tab, you can turn on/off groups of related graphs.

Also for the record, this is called the Driver Station Log Viewer and it’s a standalone program from both the Driver Station and the dashboard. It’s completely independent of the type of dashboard you’re using.

[mrneubs]

Thanks for the advice. I now see the PDP options. I didn’t scroll down

I enabled all of the PDP options on the plots tab, but the values are still showing up as 0. I even exported to excel to confirm and PDP totals were definitely 0.

Is there something I need to enable to see these values?

Here is another screen shot to share what I see.

[orangelight]

This happens when the PDP is not connected to roboRio with CAN or firmware is not updated

[mrneubs]

We have never updated the firmware on these PDPs. That must be the problem as we do have them connected with CAN.

Thanks for the advice.
After 5 yrs of doing this, I never knew these log files even existed to help debug robot problems. This is very helpful.

[Joe_Ross]

I think its more likely to be a CAN issue, since the factory firmware has supported the PDP reading for several years. What color are the status and comm LEDs on the PDP?

There’s a lot of good information on screensteps, including information about the log viewer: http://wpilib.screenstepslive.com/s/currentCS/m/driver_station/c/86704