VI User Manual - 第328页
Optimization 12 - 10 Vision 2007 4.10 User Manual Re v 01 12.2 Production debug tool Fine tuning a library may be a laborious task when t he false calls ra te is qui te low, because it be- comes difficult to repr oduce t…
Optimization
Vision 2007 4.10 User Manual Rev 01 12 - 9
Only the upgraded Jedecs will be imported in the library. For each upgraded Jedec,
all the modified parameters will be imported. The links arrangement will be modi-
fied, and the unused links will be deleted.
12.1.3 AFT panel player
Auto Fine Tune enables running recorded panels in process mode (for example on an offline
station). To record panels, please consult the AFT Recording and optimization wizard.
With the .tst file window active, select the Play option from the AFT menu. This will open the
AFT player toolbar.
Select the panel you wish to run in the scroll list and press the LOAD button. The AFT record
is read from the hard drive. Now you can run the panel in debug mode (step by step, contin-
uous, Ctrl E, Ctrl B).
You can modify the .tst file as long as you do not modify the zones and fiducials.
You can change the attached library and anything in the library (except the light levels).
A Jedec is considered as upgraded when:
The number of false faults is lower (or equal) after optimization than it was
before (on both empty and full panels).
The number of false faults is greater than before on empty panels and lower
on full panels, but the overall increase in false faults for this Jedec is lower than
the criterion.
The number of false faults is lower than before on empty panels and greater
on full panels, but the overall increase in false faults for this Jedec is lower than
the criterion.
To run a .tst file on recorded panels, you will need the same .tst file that was used
for recording the panels (same fiducials and zones).
Open this .tst file, and make sure the path to the records is correct (.tst file
configuration, AFT tab).
Auto Fine Tune (AFT)
Optimization
12 - 10 Vision 2007 4.10 User Manual Rev 01
12.2 Production debug tool
Fine tuning a library may be a laborious task when the false calls rate is quite low, because it be-
comes difficult to reproduce the same thing in the Debug mode that happened in Production mode,
when 99.99 % of the results are OK, and you can not place the tools at the same position on images
from the repair station. And also fine tuning the models requires a machine to run the boards in debug
mode.
Using the production debug tool, you can use images and data from the production mode to optimize
your models afterwards.
When the production debug tool is active during production mode, it captures all the necessary data
(clipped images, machine calibration data, and models data), each time a model returns an error. It
saves them into archives (*.dbg files) that you can open and analyze in debug mode. One of the key
features of this tool is that the archives are not machine dependant, because they contain the cali-
bration data of the machine that created them. So you can use the archives on any machine (of the
same type) or stand alone station and obtain exactly the same results.
The production debug tool can be used to debug solder paste objects and all kinds of models, (Vi-
Pro, SO, QFP, Custom tools) except multi zone ones.
12.2.1 Production debug tool configuration
In the DefaultValue.ini file, you will find the necessary keys to set the production debug tool
active:
Open the DefaultValue.ini file with Notepad or any text editor, and find the [Production] sec-
tion. In this section, set the TraceFaults key to 1 to enable the debug tool, or 0 to disable it.
Set the Folder of dbg files key to the full path where you need to save the dbg files.
You can also set the maximum number of archives per panel you wish to save with the num-
ber of dbg file value.
Reload the INI parameters before starting production mode (close and restart Vision 2007 or
in Process menu, select Load ini file).
The TraceFaults value turns the Production debug tool on or off (1 = ON, 0 = OFF). This val-
ue is read each time you start a production session. This means you have to exit and re-enter
the Production mode if you need to turn on or off the production debug tool.
Please make sure that there is enough free space on the drive you specify.
The .dbg files are quite small archives, but a production session can create many
of them.
The TraceFaults function can be activated on production screen by clicking on Ctrl + D.
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12.2.2 Creating dbg archives
Once the production debug tool is active, it will create an archive for each fault on compo-
nents or paste (except multizone components) during production. The dbg directory will con-
tain archives of both real faults and false calls.
The production debug tool will not modify the production mode behavior. It may slow down
the cycle time if you have many faults.
12.2.2.1 Using dbg archives
The dbg directory contains the dbg archives obtained in production mode. The dbg
archives name format is:
ReferenceDesignator_FirstLightLevel_YearMonthDayTime.dbg
To open a dbg archive, go on Process menu and select Open a debug file (*.dbg)
(Ctrl+D).
In the Open window select the .dbg file you wish to open. This will open the produc-
tion debug tool's dialog box and the Cognex console.
12.2.2.2 Components
The dialog box contains the results of all the model's links. The tools are placed and
executed at the same position as they were in production mode.
To edit the models, double click on a link result in the dialog box. This opens the
model's library page. You can then modify parameters and fine tune the model. If
you modify the model and click OK, the checkbox in the link result appears ticked.
Re-executes all the links to check the global result. If you modified a model, press
this button to update the dialog.
Exports the models as a .mdl file. Only the modified links are included in the .mdl
file.
Copies all the links to a library. This opens a browser dialog to choose the destina-
tion library.
Opens / closes a Ruler tool at the right part of the dialog. Useful to measure objects
directly in the image.
1. Adjust the area around the object you wish to measure.
2. Gives the dimensions and angle of the area.
Production debug tool