ALLIED Vision Technologies Bonito CL-400 200 fps - Manual (Page 58)

Parameters and commands
Bonito Technical Manual V2.3.0
58
Standard mode
Bit group: f
Weight: 0
Enhanced full well (3T) mode
Bit group: f
Weight: 10
The full image shutter is not available in this mode. Instead, the sensor oper-
ates in rolling shutter mode, the effective shutter time equals the image dura-
tion. For that reason, a synchronized strobe light is recommended.
Consequently, any exposure time setting controlled by Parameter E or by exter-
nal signal is ignored.
The light should flash between two image readouts, which may be the duration
of one line at highest possible image rate.
Decrease the image rate accordingly, if longer exposure times are needed. Use
the sync output (RS232 driver at pin 6) for synchronization.
Permanent exposure mode
Bit group: f
Weight: 20
Use this mode to maximize the exposure time.
If activated, the exposure time equals the image duration.
Consequently, any exposure time setting controlled by parameter E or by exter-
nal signal is ignored.
Number of lines (N)
The number of lines per frame is controlled with N. The actual line count is N+1,
the default of N=6BD results into 1726 output lines. If the double ROI mode is
active ( D=1) the actual line count is doubled: (N + 1) * 2.
Parameter N also has an influence on the number of frames per second possible.
Use the following formula to calculate the exact number:
• Max fps = 1 / ((D + 1) * (N + 1) + 1 + IOD) * t
L
);
he parameters are explained in the table below
Parameter Value
D Parameter D
N Parameter N
Table 19: Parameters for fps calculation