a quick guide to the benefits of the SVS-VISTEK unique I/O concept for machine vision. Reduce complexity and costs by getting rid of external components a bunch of cables. Take a short journey aside a trigger signal. Being evaluated, inverted and converted to multiple signals. Pulses for exposure, LED strobes or to trigger the next camera.

1. SVCam I/O
In-Camera Controller and Driver
Included in every SVCam

2. SVCam I/O
 Versatile inputs
» Trigger
signal
handling
» Generating
multiple signals
 Open drain outputs

3. SVCam I/O – Customer Benefits
 All programmable
 Displacing an external LED controller
 Reducing complexity
 Cutting costs
» Fewer cables
» Fewer components
» Smaller application

4. Agenda
1. Inputs
2. IOMUX
3. Debouncer
4. Prescaler
5. Sequencer
6. Pulseloop
7. Output
Approx. 20 to 30 minutes
Alexander Lucke
MarCom @ SVS-VISTEK

5. Input
 4 inputs
» Triggers
› Voltage up to 24 V
 Signals
» RS-232
By the way:
Opto isolator
For new EXO & SHR series

6. IOMUX
Switch matrix
Combining modules
 Input to
» Debouncer to
› … to

7. IOMUX
 Switch Matrix
 Input to
» Debouncer to
› Pulseloop0 to
Output2 open drain
› Pulseloop1 to
•UART to
Output3 RS-232

8. by the way: Inverter and set-to-one
 Before and after every IOMUX module
 Invert signal
» Trigger interpretation can
also be inverted
 Set signal to „1“
» Just turn the signal ON
» or turn it OFF by inverting it at the same time

9. Debouncer
 Eliminates „ringing“
» Glitches: spikes, overshoots
1. Masking the input for a period of
time
2. Comparing the signal after the
period

10. Prescaler
 Masking every 2nd, 3rd, 4th, and so on

11. by the way: high low trigger
Schmitt Trigger
Programmable values that
have to be crossed for a
trigger interpretation true

12. Sequencer
 One trigger signal results in:
» Up to 16 intervals with individual:
› Total length
› Exposure time
› PWM frequency
› Up to four strobe outputs with individual
•Intensity
•duration

13. Sequencer
 One trigger signal:

14. by the way: PWM
Pulse Width Modulation
Integrated in the Sequencer
 regulate the intensity of an LED light
» Extend LED life cycle
 Set base frequency period length
» for each sequencer interval
 Set duty cycle Δ in %
» for each sequencer output

15. by the way: PWM
25 % intensity
50 % intensity
75 % intensity

16. Pulseloop
 Four individual pulse generators
» Set delay and duration time

17. Pulseloop
 Four individual pulse generators
» Set number of loops
An individual PWM

18. Pulseloop
 Camera cascade
» Exposure internal cam1
» Exposure external cam2
» Trigger cam3

19. Pulseloop
 Wait for second shoot
After first aquisition software demands a second exposure

20. Pulseloop
or simple:
Exposure and Light …

21. Output
 Up to four open drain outputs
» 0.7 A permanent
» up to 3 A over 40 ms
 Signals
» RS-232
MOSFET transistors

22. Output

23. SVCam I/O – Customer Benefits
 Eliminates the need for an external controller
 Simplifies cabling
 Reduces costs
 Rises value of ownership of an SVCam

24. Thank you
Alexander Lucke
MarCom @ SVS-VISTEK