Obviously, if a frame is acquired while attempting to read these parameters, it may be difficult to determine which parameter corresponds to which frame. The parameter dataIdM is always the last parameter to be updated, and can be used as a separator between coherent data sets. The parameter electronicGainS allows fine control over frame grabber acquisition electronics. ITI discourages use of this feature, and suggests that this value remain 140 for RS-170 data streams. The parameter flagNameS allows selection of flags for each frame grabber.
Legal values are offLine, or a site-wide flag name.
The order of the legal values corresponds to mux input channels. Mux output channels should be connected to frame grabbers in the same order the frame grabbers appear on the ITI video bus, i.e. from left to right when viewing the frame grabber from the front. The first mux output channel should be connected to the leftmost frame grabber, etc. Refer to the mux ADO documentation for more details. The beginAcq causes the ADO to set up the frame grabber hardware to store the next camera frame, and notify the tFrame task upon completion.