Guppy PRO Technical Manual
V4.1.2
91
Auto shutter
In combination with auto white balance, Guppy PRO models are equipped with
auto shutter
feature. When enabled, the auto shutter adjusts the shutter
within the default shutter limits or within those set in advanced register
F1000360h in order to reach the reference brightness set in auto exposure
register.
The applied algorithm uses a proportional plus integral controller (PI
controller) to achieve minimum delay with minimum overshot.
To configure this feature in control and status register (CSR):
Note
Target gray level
parameter in
SmartView
corresponds to
Auto_exposure
register 0xF0F00804 (IIDC).
Increasing the auto exposure value increases the average
brightness in the image and vice versa.
Register
Name
Field
Bit
Description
0xF0F0081C SHUTTER Presence_Inq [0]
Presence of this feature:
0: N/A
1: Available
Abs_Control
[1]
Absolute value control
O: Control with value in the
Value
field
1: Control with value in the
Absolute
value CSR
If this bit=1, the value in the
Value
field will be
ignored.
---
[2 to 4]
Reserved
One_Push
[5]
Write 1: begin to work (self-cleared after operation)
Read:
1: in operation
0: not in operation
If A_M_Mode = 1, this bit will be ignored.
ON_OFF
[6]
Write: ON or OFF this feature
Read: read a status
0: OFF
1: ON
Table 45: CSR: Shutter
