Chart question with, I'm sure, a simple answer (That I can't seem to figure out). Fixed 'time frame' on time axis.

[Ralph@NES]

Hello all.

I'm using charts to record data coming from vibration sensors on a bearing testing rig.

The problem I have (or rather the users have) is that the chart seems to only show a minute or so 'window' of data and it moves along through the day that way.  Adding a scrollbar on the axis helps, but doesn't give a real 'picture' of a specified time range.

We'd like to have the time range of the chart be about 12 hours.  Is there a simple way in properties that you can set the chart to show 'last X amount of time'?  Or at least something greater than a minute!

Thanks for bearing with me.  There seemed to be several posts sorta similar to this, but none really addressing the exact issue.

[Dennis_Knutson]

What do you have the history length set to and how often are you sampling? If your history setting is large enough for 12 hours of samples, then you should just set the x max to that number.

[stevem181]

Hi Ralph,

> I'm really, really confused.

Don't feel alone, this was not obvious to me either.

Here is an example in LV 8.5

You can set the log interval and the number of hours to be displayed.

steve