Image Acquisition Control AW00089317000
152 Basler ace GigE
7.12 Maximum Allowed Frame Rate
In general, the maximum allowed acquisition frame rate on any ace camera can be limited by three
factors:
The amount of time it takes to read an acquired frame out of the imaging sensor and into the
camera’s frame buffer. This time varies depending on the height of the frame. Frames with a
smaller height take less time to read out of the sensor. The frame height is determined by the
camera’s AOI Height settings.
The exposure time for acquired frames. If you use very long exposure times, you can acquire
fewer frames per second.
The amount of time that it takes to transmit an acquired frame from the camera to your host
PC. The amount of time needed to transmit a frame depends on the bandwidth assigned to the
camera.
On acA1600-60 cameras:
On the initial wake-up after delivery the Basler acA1600-60gm/gc cameras have default
transport layer settings that do not allow to reach the specified maximum possible frame rate.
If you want to obtain the maximum possible frame rate, change the values of the default
transport layer parameters in pylon Viewer as indicated in Table 43 on page 349.
On acA750-30 cameras, an additional factor is involved:
The Field Output Mode parameter setting. If a camera is set for the Field 0 or the Field 1 mode,
it can output approximately twice as many frames as it can with the camera set for the
Concatenated New Fields or the Deinterlaced New Fields output mode.
On acA2000-50, acA2040-25 cameras, an additional factor is involved:
The stacked zone imaging feature:
Using the stacked zone imaging feature increases the camera’s frame rate.
For more information about the stacked zone imaging feature, see Section 10.6 on page 219.
There are two ways that you can determine the maximum allowed acquisition frame rate with
your current camera settings:
you can use the online frame rate calculator found in the Support section of the Basler website:
www.baslerweb.com
You can use the Basler pylon API to read the value of the camera’s Resulting Frame Rate Abs
parameter (see the next page).
For more information about
AOI Height settings, see Section 10.5 on page 216.
the field output modes on acA750-30 cameras, see Section 7.5 on page 109.
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