Rockwell Automation 5370-CVIM2 Module - Manual (Page 69)

Chapter 3
Image Acquisition Parameters
3–30
Note that the delays are cumulative; that is, the total delay consists of the
polling latency plus one of the two bank switch delays.
Automatic –– This bank switch mode causes the CVIM2 system to switch
automatically to the inactive camera bank when it receives a trigger
corresponding to one of the unselected bank’s cameras. Thus, if cameras #1,
#2, and #3 were currently selected and a trigger arrived for camera #4, the
bank switch to cameras #4, #5, and #6 would take place automatically.
A delay will occur from the start of a trigger until the system is ready to
process the trigger, as follows:
•
When the trigger queue is empty, no acquisition is in progress, a bank
switch is required to process the trigger, and either:
— Cameras across banks #1 and #4, #2 and #5, or #3 and #6 are
compatible (that is, both are free–running cameras, such as the
2801–YC or –YD, or both are frame reset cameras, such as the
2801–YE): approximately 40ms, or
— Cameras across banks #1 and #4, #2 and #5, or #3 and #6 are not
compatible (that is, one is a free–running camera, such as the
2801–YC or –YD, and the other is a frame reset camera, such as the
2801–YE): approximately 160ms.
•
When the trigger queue is not empty, it is placed in the trigger queue, and
processing is delayed further until all previous triggers are processed (all
triggers are handled sequentially).
Note that the delays are cumulative; that is, the total delay consists of the
trigger queue delay plus one of the bank switch delays.