Chromasens CD40127_R02 allPIXA_pro_User Manual.docx
141
8.8 Principle of master-slave synchronization
The trigger signals from light barrier (frame trigger) and/or encoder (line trigger) are connected
to the master camera only.
This could be done with the CC-bits via the frame grabber or by directly connecting to the
master allPIXA pro camera. This trigger information is transferred via the master-slave
interface to the slave camera(s). Due to this synchronization interface all cameras runs with
exactly the same timing for lines and optional frames.
8.8.1 Parameters and region of interest of master-slave synchronization
To ensure synchronous operation, the master camera provides an internal image and line
trigger.
Line - and
frame trigger
Spike suppression
MASTER
SLAVE(S)
WhiteRef-ROI
Master-
Image
Wait for
First image line for
the white reference
(Tag x2A3)
Lines
State machine
internal Sync
Slave-
Image
(Same number of
lines as Master
but indepedent
"Image start
delay")
Wait for
Image start delay
(Tag x230)
Lines
TAG_MASTER_SLAVE_CONFIGURATION
(Tag x317) (Image + line trigger)
TAG_TRIGGERED_FRAME_SCAN
(Tag x24B)
Free running
,
Only image start
,
Image start
and stop
TAG_SCAN_LINES_AFTER_STOP, ...
for all cameras
IO-Config
Wait for
Image start delay
(Tag x230)
Lines
Internal Image
+ line trigger
WhiteRef-ROI
Wait for
First image line for
the white reference
(Tag x2A3)
Lines
