This controls which analyzer is moved to the sample two theta position when A4 is moved. It can only be moved when in manual PTAI mode (command ManualPTAI).
Devices which cannot be moved simultaneously with this device:
Other Restrictions:
This cannot be moved if PTAI is in automatic mode
Devices which affect this device:
Devices which are affected by this device:
Whenever PTAI is moved: A4's value is recalculated as the angle of the analyzer corresponding to the new value of PTAI. If in UB Matrix mode HKL is recalculated, other wise HKL is assigned the value N/A. The values of DIFF and SPEC are updated so that they correspond to the number of counts last observed on the channel specified by PTAI. As an example, if PTAI were changed to 5, DIFF would take on the value of the number counts observed by DIFF05 during the last count.