Vision Sensor SBSI/SBSC-EN, 8062650 - 1607b - 13/09/2016
Page 79
Vision Sensor Manual
200mm x 200mm
15 x 13
In the installation folder: Festo/SBS Vision Sensor/Documentation/... the available calibration plates can be
found as .pdf-file. This can be printed on paper or any other medium. Please consider the setting "actual
size?", that print out is not scaled.
The length of the long edge of the plate must correspond exactly to the number in the name of the plate.
4.6.1.7 Parameters Cycle time
In tab Cycle time the timing conditions of the SBS can be defined.
Next topic:
Parameter
Function and possibilities
Max. cycle time
Parameter to control the minimum and maximum time of a cycle. Inside a cycle some
images can be evaluated (in case of "Number of images (max)" >1) Maximum
processing time per image interrupts a job after a defined time. The result of a cycle
after a timeout is always "not o.k". Maximum processing time should be selected higher
than the time demand for one execution.
The processing time is the time elapsed from trigger till the setting of the digital
outputs. If this cycle time should be limited (e.g. if the machine cycle should not be
exceeded) this function can be used. The result of all detectors which are not
processed / finished after this processing time has elapsed are set to “failed”. As the
currently processed detector will still be finished, please consider that the adjusted job
time may not be met a 100% exactly, and it may last a few milliseconds longer till the job
is interrupted.
It´s recommended to test the real cycle time and to choose a value for this parameter
which is a bit smaller / shorter.
Max.
processing
time per image
Maximum duration of one evaluation inside a cycle including image capturing.
Min. processing
time per image
Minimum duration of one evaluation inside cycle including image capturing. Minimum
processing time blocks trigger signals which are coming before the minimum
processing time was reached.
Number of
images (max.)
Maximum number of image capturings, which are processed after one trigger, if the
stop criteria is not fulfilled. The stop criteria is the "Overall job result" (access via
Output/Digital output)
LED-Power
This value is calculated automatically. Standard Value is 100%. LED-power may be
reduced, if shutter time is quite long and minimum job time is quite short, because the
recovery time for the LEDs may be to short in this case. To obtain 100% LED power,
minimum job time should be factor 10 bigger than shutter time.
Summary of Contents for SBSC-EN
Page 1: ......