ALLIED Vision Technologies Stingray F-504 - Manual (Page 332)

Configuration of the camera
STINGRAY Technical Manual V4.4.4
330
Enter a
• positive value from 0...HeightOfImage to specify a position relative to
the top of the image. LinePos=0 specifies the very first image line.
• negative value from -1...-HeightOfImage to specify a position relative
to the bottom of the image. LinePos=-1 specifies the very last image
line.
SIS UserValue can be written into the camera’s image. In sequence mode for
every sequence entry an own SIS UserValue can be written.
Note

SIS outside the visible image area:
For certain Format_7 modes the image frame transported
may contain padding (filling) data at the end of the
transported frame. Setting LinePos=HeightOfImage
places SIS in this padding data area, outside the visible
area (invisible SIS).
If the transported image frame does not contain any pad-
ding data the camera will not relocate the SIS to the vis-
ible area automatically (no SIS).
Take in mind that the accuracy of SIS might be affected by
asynchronous traffic – mainly if image settings are
changed.
Note

• The IEEE 1394 cycle time will be inserted into the very
first 4 bytes of a line.
• Cycle time is a structure and not really a counter in its
first meaning.
• Cycle time has the three components:
– Cycle offset
– Cycles
– Seconds
• Cycle time is therefore something like a nested coun-
ter: see table below.
Feature Cycle offset Cycles Seconds
Bit depth 12 bit 13 bit 7 bit
Range 0 .. 3071 cycle offsets 0 .. 7999 cycles 0 .. 127 seconds
Frequency 24.576 MHz  40.69 ns 8000 Hz  125 µs 1 Hz  1 s
Table 160: Structure of cycle time