I can only think of detector configuration. Momentary action?
Perhaps set up a separate set of sensors to interface a detector, separated from any other JMRI logic or control. Solved?
I can't off hand think of anything else that would reset the detector or its reading sensors.
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Ken
NYNH&H, Old Colony Division, Cape Cod Branch (1949-1959)
[DB150][PR3][QuadLN_S][JMRI 5.3.5]