Camera interfaces
Page 59
Prosilica GB Technical Manual V2.2.6
In 1 (Opto-isolated)
In 1 is optically isolated and can be used in electrically noisy environments to
prevent false trigger events. Tie Camera GND to Isolated IO GND to complete the
trigger circuit. Compared to the non-isolated trigger, In 1 has a longer propagation
time. It can be driven from 5 to 24 Volts with a minimum current source of 10 mA.
See
Camera I/O opto-isolated user circuit example
for more information.
In 2 (Non-isolated)
In 2 is non-isolated and can be used when a faster trigger is required and when
environmental noise is inconsequential. The required signal is low voltage TTL 3.3
Volts. Tie Signal GND to Camera GND to complete the trigger circuit. See
I/O non-isolated user circuit example
for more wiring information.
Output signals
Output signals can be assigned to a variety of internal camera signals via software.
They can be configured to active high or active low. The internal camera signals are
listed as follows:
Out 1 (Opto-isolated)
Out 1 is optically isolated and should be used in noisy environments. Out 1 requires
a pull up resistor of greater than 1 KΩ to the user’s 5 V logic supply. Tie Camera
GND to Isolated IO GND to complete the external circuit. See
opto-isolated user circuit example
for more information.
Power caution
Exceeding 5.5 Volts on signal inputs
can permanently damage the camera.
Exposing
Corresponds to when camera is integrating light.
Trigger Ready
Indicates when the camera is ready to accept a trigger signal.
Trigger Input
A relay of the trigger input signal used to “daisy chain” the
trigger signal for multiple cameras.
Readout
Valid when camera is reading out data.
Imaging
Valid when camera is exposing or reading out.
Strobe
Programmable pulse based on one of the previous events.
GPO
User programmable binary output.
