Darryl@HPAMotorsport

Thank you for all your inquiries thus far about VAD Mobile Wireless. Many inquires have come in over the last couple of weeks regarding the Bluetooth's ability to log multiple blocks, and the rate of speed at which it can do so.

VAD has always had the ability to log multiple blocks.

<img src="http://www.hpamotorsport.com/vadpro/images/forum_images/Addl-Blocks.jpg">

<img src="http://www.hpamotorsport.com/vadpro/images/forum_images/Block-List.jpg">

With our new Quick Scroll feature, VAD users may now scroll through ONLY the blocks they are logging, rather than having to scroll through each block, or enter a specific block number using the number pad or graffiti.

<img src="http://www.hpamotorsport.com/vadpro/images/forum_images/addl_log_pull_down.jpg">

This empowers the user to access information that much quicker during individual logging sessions of either a single block of multiple blocks within a selected ECU.

Here is some information we have collected locally about sampling rates. VAD defines the "Sampling Rate" as the number of individual value readings measured per second. Every time the tool collects data, one sample is recorded.

You may use VAD to log data by selecting the measure block (or blocks) which contains the information you are interested in seeing. Most Measuring Blocks record four values. If you are logging multiple measuring blocks, keep in mind that the frequency in which each value will be read will be less often than if you are logging only one Measuring Block at a time.

For most diagnostic purposes, 25 to 30 Values (5-7 Measuring Blocks) can be logged simultaneously and still provide plenty of data to analyze.

Test vehicle 1: 2000 VW GTI 2.8 VR6
ECU # 021 906 018M

1 block (4 values) = 150 samples/44 seconds = 3.41 samp./sec.
5 blocks (20 values) = 159 samples/53 seconds = 3.00 samp./sec.

Test Vehicle 2: 2008 VW Golf R32
ECU# 022 906 032CE

1 block (4 values) = 571 samples/68 seconds = 8.40 samp./sec.
5 blocks (20 values) = 829 samples/100 seconds = 8.29 samp./sec.

Testing was also conducted from 30 feet away, to see how the Bluetooth adapter performed from a distance.

The 2000 GTI averaged 3.18 samples/sec.
The 2008 R32 averaged 4.21 samples/sec.

Likely due to the fact that VAD only displays one block at a time, sampling rates in most instances do not decrease significantly when multiple blocks are logged. :thumbup:

Keep in mind that these rates may vary depending upon the vehicle and ECU connected.

Look for more information on our new wireless product to come...

<img src="http://www.hpamotorsport.com/vadpro/images/forum_images/VW-Touareg.jpg">