Online Demo / Manual - Advanced
This function expands on the
Blocks function and lets you select up to 12 measuring values from a
single control module using a selection dialog that shows the
contents of the measuring values. On
non-UDS modules these can be from as
many as 12 different Measuring Block Groups, but this function is available only when
a label file
exists for the control module being accessed.
On modules using the
UDS/ODX/ASAM protocol, the Measuring Blocks
function is not available and you MUST use Advanced Measuring Values
For controllers using the UDS/ODX/ASAM protocol, the "Group UDS requests" checkbox can speed up
Measuring Values function has two screens, the main one shown
above and the Item Selection Window shown below . Check each
value you would like to show and uncheck each that you would
like to remove. For controllers using the UDS/ODX/ASAM protocol, the naming of each Location should coincide with factory identifiers for various data objects
like IDEnnnnn. Use the data entry box on top to filter only the items containing the word you enter such as “distance” shown here. Use the [Clear] button to remove the filter.
VCDS lets you save a list of Advanced
Measuring Values, to be easily accessed later on. For
instance, if you often log Vehicle Speed, Engine Speed,
Intake Air Mass, and Ignition timing, then you can create a
file to quickly load those selections again. To save a set
of items, click on the VCDS logo found on the top left
corner of the item selection window, and then select "Save
selection to file":
Give the file a name and
specify the directory if desired. Non-UDS modules will have file name extensions starting with "a" like ".a01" while UDS ones will start with a "u" like ".u01".
To load a set of previously saved
items, click on the VCDS logo found on the top left corner of the
item selection window, then select "Load selection from file". Locate
the previously saved file and click
When you have one or more measuring group
with speed (km/h) in it, clicking on
will bring up the Acceleration Measurement function, which is described
on the Acceleration Measurement page.
The amount of data acquired in a given
amount of time is determined by the controller in the
vehicle. Selecting a greater number of different Groups will
result in slower sampling so momentary "spikes" or "dips"
will be harder to capture.
In Engine controllers using KWP-2000/CAN/UDS, there is a
to significantly speed up sampling, for example over 30
samples per second when logging a single group in the engine in a 2004 Touareg V8. Once you have pressed
[Turbo] you will
remain in this High-Speed mode until you exit the Advanced Measuring
Blocks screen. Some combinations of ECUs and PCs may not play
well with this function (especially in combination with
Group UDS Requests). If you get undesirable results
like a dropped session or bogus data, you should exit out of
the controller and get back into Advanced Measuring Values but
without clicking on [Turbo]. This function is only available when using a
When using a
HEX-V2 interface, you can select a value by which to split Grouped UDS requests.
You should select the highest value that allows data to be displayed for all of the checked items (instead of "N/A").
[Log] the data from the
Advanced Measuring Blocks screen. For more information see the
Data Logging page.
If you'd like to record just a snapshot in time of the current
readings in each group, click on
This will save the results to your PC, typically in in your VCDS\Logs
open up VC-Scope, a plug-in for
that allows you to graph Measuring Group Information and display
customizable virtual gauges. For more information, see the
[Done, Go Back] to return to
the Open Controller screen.
If you wish to observe real-time data while driving the car, please use
a second person! Let one drive while the other observes the data,
making sure the person holding the PC is not in front of an active
Note: For non-UDS controller, you may also want to
try the Measuring Blocks
function, which accesses the same data but in a different
Online Demo / Manual - Advanced