EL-2800M-USB / EL-2800C-USB
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7.2.3 Exposure Auto
This is a function to control the exposure automatically. It is effective only for Timed.
ALC Reference controls the brightness.
The range of ExposureAuto is from 100 µs to Frame Rate
There are three modes: OFF, Once, and Continuous.
OFF:
No exposure control
Once:
Exposure adjusts when the function is set, then remains at that setting
Continuous:
Exposure continues to be adjusted automatically
In this mode, the following settings are available.
ALC Speed:
Rate of adjustment can be set (Common with GainAuto)
Exposure Auto Max:
The maximum value for the exposure range can be set
Exposure Auto Min:
The minimum value for the exposure range can be set
ALC Reference:
The reference level of the exposure control can be set
(Common with GainAuto)
ALC Channel area:
The measurement area of the exposure control can be set
7.3. Trigger Mode
7.3.1 Trigger Source
The following signals can be used as the trigger source signal.
Table 18 Trigger source
Signal
Description
Software
Signal generated by Trigger Software Command
Pulse Generator 0
to 1
Signal generated by Pulse generator 0 to 1
Line 4
Signal which is input from TTL 1 In and output through Digital IO
Line 5
Signal which is input from Opt In and output through Digital IO
NAND
Gate
0,1
Output
Signal output from Digital IO
Line 10
Signal which is input from Option TTL In 2 and output through Digital IO
Line 11
Signal which is input from Option LVDS In and output through Digital IO
7.3.2 Trigger activation
This command can select how to activate the trigger.
Rising edge :
At the rising edge of the pulse, the trigger is activated.
Falling edge : At the falling edge of the pulse, the trigger is activated.
Level High : During the high level of trigger, the accumulation is activated
Level Low :
During the low level of trigger, the accumulation is activated
If Exposure Mode is set to Trigger Width, Level High or Level Low must be used.
Table - 19 Trigger activation
RisingEdge FallingEdge LevelHigh
LevelLow
Timed
○
○
×
×
Trigger Width
×
×
○
○
Trigger Option PIV
○
○
×
×
Trigger Option RCT
○
○
×
×