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5 Vision Functions SIP LACE 80S-20/F4/F5 Us er Manual 5.5 Teach Fiducial 05/99 Issue from Software Version SR.405.xx 5 - 62 Line en gineer Notes on using the transf ormation tables to set the c ontrast sensi tivity – S e…

SIPLACE 80S-20/F4/F5 User Manual 5 Vision Functions

05/99 Issue from Software Version SR.405.xx 5.5 Teach Fiducial

Line engineer 5 - 61

Buttons

– Accept

Click on the

button to save the settings. The option box will then close.

– Cancel

With

Cancel

you can discard the settings. The option box will then close.

– Help

With the

Help

button you can access explanatory material regarding the on-screen presentation.

– Standard values

Click on the

Standard values

button if programming the transformation table fails. When you select this

option the transformation table will be preassigned default values. After this you can start over with pro-

gramming table 5.

– Number

input field

You can choose the number of sections

by entering the numerical value directly into the display field, or

by moving the scroll field in the scroll bar to the right or left using the mouse. In this way you can run

back and forth through the values range (1 - 5), or

by clicking on the left-hand or right-hand arrow on the scroll bar. In this way you can increase or

decrease the number of selections.

Programming the transformation table

– Specifying the output values

Position the mouse pointer over the ends of the transformation lines of each section. The ends are marked

with small horizontal lines. A vertical double arrow will then appear on the screen. Click on the left-hand

mouse key and move the arrow upwards or downwards. This will move the selected end of the transforma-

tion line and the numerical value will be displayed at

OUT Begin

OUT End

– Selecting the section limits

The graphical representation in Fig. 5.5.19, Page 5 - 60 shows equidistant section limits with the ranges 0 -

80, 81 - 180 and so on. You can change these section limits if you wish. However limits 0 and 255 are per-

manently allocated and cannot therefore be moved.

Position the mouse pointer on a section limit (but not 0 and 255). A horizontal double arrow will appear on

the screen. Hold down the lefthand mouse pointer and use it to drag the section limit in the direction you

want. The corresponding numerical value will be displayed at

IN:

– Once you have programmed your transformation table you can quit the option box by clicking on

Cancel

. If you have not managed to obtain a satisfactory result, click on

Default

5 Vision Functions SIPLACE 80S-20/F4/F5 User Manual

5.5 Teach Fiducial 05/99 Issue from Software Version SR.405.xx

5 - 62 Line engineer

Notes on using the transformation tables to set the contrast sensitivity

– Select up to 3 sections.

– The range of values for the individual sections should be at least 75.

– Program the ranges so that no jumps occur at the range limits.

Set the contrast sensitivity so that the shape of the curve roughly corresponds to one of the three following

examples:

Setting the contrast sensitivity to suppress defective structures

Select the following settings for lighter PCBs or fiducials in order to suppress defective structures.

Fig. 5.5.20 Setting the contrast sensitivity to suppress defective structures

SIPLACE 80S-20/F4/F5 User Manual 5 Vision Functions

05/99 Issue from Software Version SR.405.xx 5.5 Teach Fiducial

Line engineer 5 - 63

Setting the contrast sensitivity to intensify low-contrast fiducials

Select the following settings for low-contrast fiducials in order to intensify the contrast:

Fig. 5.5.21 Setting the contrast sensitivity to intensify low-contrast fiducials