Dalsa Falcon 4M30, Руководство пользователя

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Falcon 4M Camera Manual
DALSA 03-032-20044-01
41
Timing Parameters
Symbol Definition Min Max
thWLEV Window Level Hold Time- The Window Control Signals
must remain valid and constant after the EXSYNC
falling edge for at least the thWLEV time. 3
EXSYNCs NA
tsWLEV Window Level Set Time- The Window Control Signals
must remain valid and constant at least tsWLEV before
the EXSYNC falling edge. 3
EXSYNCs NA
Toggling Window Sequences Using a Software
Trigger
Purpose: To allow quick activation of new window coordinates, the camera
allows you to preset one sequence of window coordinates. These
coordinates wait for a trigger and because they have been
preprogrammed, the new window is activated extremely quickly.
This command loads a new window sequence.
Syntax:
wss m
Syntax Elements:
m
Window sequence trigger where changing from
0
to
1
(or vice
versa) toggles the current window sequence being used.
Related Commands:
wts
Example:
wss 0
Notes: •
There is a delay between the issue of the
wss
command and the
time when the new window sequence is triggered (Figure 16)
•
When toggling windows, the camera discards the first frame
read out after the toggle. This prevents the camera from
sending out erroneous data.
•
Upon power up or reset of camera, the camera assumes that a
wss 0
has already been executed
Figure 16: Time Delay for New Window to Become Active when Using wss Command
wss
value
Current Window Sequence New Window Sequence
tDelay
Serial Communication
Window Sequence
Exsync
Timing Parameters
Symbol Definition Min Max
tDelay This is the time delay that occurs to decode
the
wss
command.
1 EXSYNC 3 EXSYNCs