ALLIED Vision Technologies Prosilica GX6600 - Manual (Page 45)

Prosilica GX Technical Manual V2.0.8
45
Camera interfaces
Input triggers
In 1 and In 2
In 1 and In 2 allow the camera to be synchronized to some external event. These
signals are optically isolated and require the signal common (Isolated IO GND).
The camera can be programmed to trigger on the rising or falling edge of these
signals. The camera can also be programmed to capture an image at some pro-
grammable delay time after the trigger event. These signals can be driven from
5 V to 24 V with a minimum current source of 5 mA.
Output signals
Output signals can be configured to active high or active low. The internal cam-
era signals are listed as follows:
Figure 29: Prosilica GX input trigger. Camera internal circuit
Note

Avago HCPL-063L are optically coupled gates that combine a
GaAsP light emitting diode and an integrated high gain photo
detector. These are used for the opto-isolated camera inputs.
Exposing Corresponds to when camera is integrating light
Trigger Ready Indicates when the camera will 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 above events
GPO User programmable binary output
180 R
1/10 W
TO CAMERA LOGIC
IN 2
ISOLATED IO GND
D S
G
VCC
GND
HCPL-063L
1
2
3
4
7
6
8
5
VDD+3.3
IN 1
D S
G
180 R
1/10 W
CAMERA INTERNAL EXTERNAL