Dalsa Calibir GXM640 User Manual page 116

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An Example with two Calibir Cameras
The following basic steps configure two Calibir cameras connected to one computer via
an Ethernet switch, configured with two instances of CamExpert, to grab a frame every
second, controlled by a modulo event via PTP.
For each camera set features as follows:
I/O Controls — select Trigger Mode=ON, Trigger Source=Timestamp Modulo Event
Event Controls — select PTP Mode=Automatic
 Note how one Calibir automatically becomes Master while the other becomes Slave
Event Controls — to have a modulo event every second, set Timestamp Modulo
Event=1000000000 (nanoseconds)
Click Grab on each instance of CamExpert. With the two cameras aimed at the same
moving object, you see that each camera grabs a frame at the same time.
IEEE 1588 Reference Resources
For additional information: http://standards.ieee.org
PTP Standard Reference: IEEE Std 1588-2008 — IEEE Standard for a Precision Clock
Synchronization Protocol for Networked Measurement and Control Systems
116  Operational Reference Calibir GXM640 IR Camera User's Manual