CM-030GE/CM-030GE-RA / CB-030GE/CB-030GE-RA
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9. Functions and operations
9.1. Basic functions
The CM-030GE/CM-030GE-RA and CB-030GE/CB-030GE-RA cameras are progressive scan
cameras with 10 or 8-bit video output in Gigabit Ethernet. An analogue iris video signal (DIP
switch select) can be used for controlling auto-iris lenses.
The camera has 2/3, 1/2, 1/4 or 1/8 partial scanning for faster frame rates. Vertical binning
is also available.
The camera can operate in continuous mode as well as in 5 triggered modes:
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Edge Pre-select (EPS)
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Pulse width
Control (PWC)
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Reset continuous (RCT)
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Sequential trigger (EPS)
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Delayed readout (EPS, PWC)
Depending on the timing of the trigger input in relationship to FVAL (camera internal Frame
Valid clock), the start of exposure can be immediate (no-delay, LVAL asynchronous) or
delayed until next LVAL (LVAL synchronous).
In the following section the functions are described in detail.
9.2. Electronic Shutter
In the GenICam SFNC interface, the electronic shutter is set by Exposure time (microseconds).
The traditional JAI method for shutter setting can also be used including JAI Shutter Mode, JAI
Preset Shutter, JAI Exposure Time Raw and JAI Exposure Time (us). If setting is done using the
SFNC method, these settings are automatically reflected in the traditional JAI settings area.
Preset Shutter
10 preset shutter steps are available: OFF (1/90); 1/100, 1/120; 1/250; 1/500; 1/1,000;
1/2,000; 1/4,000; 1/8,000; 1/10,000 sec.
Programmable Shutter
It is possible to set the shutter speed in the range of 2L to 511L by 1L unit, in case of Full
Frame operation. When 511L is set, it is the equivalent of “OFF (1/90)“ or 11.037ms.
Pulse Width Control
With this mode selected the exposure time is controlled by the width of the trigger pulse. The
minimum trigger pulse width is equal to 1L (21.6 µs)
Minimum Shutter Time 2L
Maximum Shutter Time
Normal
21.6 µs(1L) * 2L = 43.2 µs
21.6 µs * 511L≈ 11.037 ms
Frame(11.037ms)
V Binning
23.4 µs * 2L = 46.8 µs
23.4 µs * 257L ≈ 6.0138 ms
