System device represents some properties of experiment, main engine and spectrometer that can be modified during the course of an experiment.

System device is always the first in the list of devices.

System device properties
Property Description
Shots Number of shots in experiment.
XReps YReps ZReps Sim1Reps Sum2Reps Number of repetitions for corresponding axes.
i j k Dummy variables. Values of these variables are ignored. Values do not force recalculation of pulse sequence. Can be used to enumerate non-changing dimension of experiment.
MTDelay Delay from the moment of setting of the variable till the sequence master trigger. This variable can be used to account for the settling time of devices. Multiple settings of MTDelay are allowed. The master trigger time will be chosen as the latest time between all times set by MTDelay and software synchronization time (if used).