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Viewing and Saving Data (PIDs)
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6.4.3 Locking PIDs (to always display at top)
Use the
Lock/Unlock
icon to hold selected lines of the data in place and
prevent them from scrolling, or to release previously locked lines of data.
Up to three lines of data may be held at a time. This feature allows you
to position related parameters together, making it easier to monitor their
values and spot inconsistencies.
Locked parameters display as the top frames on the main body of the display screen,
as well as at their usual position within the data list (
). A lock icon appears
to the left of the parameter name to indicate it is locked.
z
To lock parameters:
1.
Highlight the parameter to be locked.
2.
Select the
Lock/Unlock
icon on the toolbar to lock it.
A copy of the locked parameter is now shown at the top of the data list, and a
lock icon appears alongside the parameter name.
3.
Highlight and select additional parameters to lock.
Up to three parameters can be locked at a time. Once locked, a parameter
remains locked until it is manually unlocked, or communication with the vehicle
is stopped.
Figure 6-28
Locked parameters
NOTE
If three parameters are locked, one of them must first be unlocked before
another parameter can be locked.
z
To unlock parameters:
1.
Scroll through the data list and highlight the parameter to be unlocked, or
released.
2.
Select the
Lock/Unlock
icon on the toolbar.
The released parameter and the lock icon disappear from the list at the top of
the data list.
3.
Repeat Step 1 and Step 2 to release other parameters if needed.
6.4.4 About the Data Buffer
The diagnostic tool has the capability to collect, store and save PID data utilizing
internal storage memory and buffer memory.
When Data is displayed onscreen, a data buffer automatically starts to store it in
buffer memory. The data buffer runs continuously (storing data) until the Pause,
Clear, or Save icon is selected.
Buffer memory is limited to a predetermined “total” size. When buffer memory
reaches it’s full capacity, the data buffer will continue to store new data, however
earlier stored data will be removed to allow room for the new data being stored.
The most recent data is always available for review when Pause is pressed, and can
be reviewed using the toolbar controls.
The Data Buffer Indicator (
left arrow) can be used to visually see the
amount of stored buffer data. This graphical indicator uses a bar graph to show how
much stored data is in the memory buffer.
Figure 6-29