In this example, 3 Conditions are created to take an image on a high alarm only when the input trigger is active.
Overview Camera - Conditions
Note that the Enable Outputs toggle must be active to use the embedded digital outputs, otherwise the output will not be selectable:
List of Conditions
Special Note: In Output - Output Type, the difference between Alarm and Signal is that Signal is output only and Alarm is output and screen alarm (output state, red alarm box around image is the same for both).
Further information (example) can be found via this Link