NPM PPCI7443, User Manual

Page: 97 / 183

Operation Theorem
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89
Here is an example of using continuous position comparison functions.
In this application the table is controlled by the motion command and the
CCD Camera is controlled by the position comparison output of
PPCI7443. The image of moving object can be got in this way easily.
Working Spec: 34000 triggering points per stroke, trigger speed is 6000
pts/sec )
Program Settings:
Table starts moving from 0 to 36000
Compare points are on 1001 35000, total 34000 pts, points to points
interval=1pulse
Moving Speed is 6000 pps
Compare condition is “=“Program codes
_7443_set_trigger_comparator(0, 1, 1, 1001);
_7443_build_compare_function(0, 1001, 35000, 1, 1);
_7443_set_auto_compare(0, 1);
_7443_start_tr_move(0, 36000, 0, 6000, 0.01, 0.01);
Monitoring or Check the current compare data:
_7443_check_compare_data(0, 5, *CurrentData);
Users can use this function to check if the auto-trigger is running.
t
v
1 2 3 4 5 6
CCD
Camera
t
v
1 2 3 4 5 6
CCD
Camera
Trigger Output