Counting Modes for the Xspress 3

Internal Triggers

Trigger mode (1): Internal: Utilises the internal time frame generator, therefore frame time is set by PV FrameTime.

Trigger mode (3): TTL Veto Only: A TTL signal can be sent to the xspress 3 system via the TTL IN 1 connection. When the signal goes high the frame will start and when the signal goes low the signal will stop.

Trigger mode (2): Software: Frames can be controlled with the PV ‘SoftTrigger’. Setting 1 to start the frame and 0 to stop the frame and ready the system for the next frame.
Trigger mode (7): Software + Internal: Frames can be controlled with the PV ‘SoftTrigger’. Setting 1 to start the frame and 0 to ready the system for the next frame. In this mode the frame time is configured by the PV “AcquireTime”. Therefore every frame will be of the same length