CV-L105
6.2.1. Internal Trigger. Scan mode.
In this mode, the camera does not require an EXT TRIG signal to be issued to the camera. The
line rate (scan rate) is generated inside the camera. The camera will operate continuously with
its internal trigger.
The exposure time is equal to the scanning time set by the SCAN parameter via RS-232C.
The permitted range for the scan rate is 151 µs to 32.5 ms (corresponds to 6.6 kHz to 30 Hz).
SHUTTER parameter has no function here.
To use this mode:
Set function:
Trigger
Internal
Mode
SCAN
SHUTTER value
No function
SCAN value
151 µs through 32.5 ms
Clock, Binning and other functions
Input:
Important notes on using this mode:
-
•
It is only recommended to use this mode when there is not change of speed in the object
being scanned. If the speed of the object changes, the aspect ratio in the vertical
(scanning) direction will change.
•
LEN
Data out
Exposure
Exposure time = SCAN value
LEN
Data out
Exposure
Exposure time = SCAN value
30 MHz 1t=33.3 ns
15 MHz 1t=66.6 ns
Value in ( ) is for Binning
Fig. 12. Timing for internal scan mode
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