eTrigger: Hardware Pulse to Scheduled Action Command

With eTrigger, a sender camera receives an electrical pulse on its GPIO and broadcasts a scheduled action command. The command specifies a shared PTP time at which all cameras, including the sender, are scheduled to begin exposure.

All cameras must have PTP lock before the pulse.

The host configures and arms all cameras, including the sender, with TriggerSelector = FrameStart, TriggerSource = Action0, and TriggerMode = On.
The host sets the sender camera to ActionMode = Send and the remaining cameras to ActionMode = Receive.
A button or PLC sends a pulse to Line3 of the sender camera.
The sender camera broadcasts an action command with execution time T, calculated as the PTP time at the pulse plus a lead time. The sender also schedules its own exposure for time T.
The host relays the broadcast to the second VLAN.
All cameras are scheduled to begin exposure at PTP time T and transfer their captured images to the host through RDMA.

The host relays the command between VLANs but does not originate the trigger. The acquisition application detects the triggered acquisition when the captured images arrive.

In this configuration, the sender camera also acquires images. All 20 cameras each capture one image per pulse.

20x Triton10 10GigE Camera Tutorial

eTrigger: Hardware Pulse to Scheduled Action Command