User`s manual

6M3P Camera User’s Manual 30
DALSA 03-32-10005-02
Because this signal is internally OR’ed with the TRIGGER IN Sync input, care must be
taken to ensure the TRIGGER IN signal is equal to a logic 0 while in Serial Trigger mode.
3.11 Controlling Frame Rate
The 6M3P allows you to control frame rate in three ways.
• Free Running (Programmed Frame Rate): (default) The camera free runs with the
internally programmed frame rate time and integration time.
• External Trigger/Internal Integration: The camera frame rate will be controlled by
the TTL pulse on the TRIGGER IN SMA connector. The camera will integrate for the
programmed integration time. (Reference section 3.10 Controlling Integration Mode)
• External Integration: The camera frame rate will be controlled by the TTL pulse on
the TRIGGER IN SMA connector. The camera will integrate for as long as the pulse is
held high. In this mode, TRIGGER IN also controls integration. (Reference section 3.10
Controlling Integration Mode)
Free Running (Programmed Fame Rate)
This mode is the camera’s default. To specify programmed frame rate, you must set bit [7]
of register 1 to 0 (Integrate Mode = Internal), and bit [3] of register 1 to 0 (Trigger Mode =
Internal). Next, write the 3-byte frame rate value (in µs or 1/Frame Rate) to the three
Frame Rate registers. These three bytes are then combined to form a 24 bit frame rate
time. The number represents the integer number of microseconds between frames. The
number programmed in the three registers should not be below 10 PS (0000Ah), nor
above the calculated value noted in section 3.9 Triggering, Integration, and Frame Rate
Overview.
Example: Set the Frame Rate to 2.5 fps
1. Reference section 3.9 Triggering, Integration, and Frame Rate Overview to ensure
the desired frame rate can be supported for the selected binning and integration
modes.
2. Using the command 82h, set bit [7] of the data byte to 0 (Integration Mode =
Internal) and bit [3] of the data byte to 0 (Trigger Mode = Internal).
NOTE: All bits within the register are written at one time. Ensure the correct value
for all bits are used when changing camera modes.
3. Use commands 8Dh, 8Eh, 8Fh to set the 24-bit Frame Rate time value.
Value = 1/2.5s
= 400000µs
= 61A80h