The "PlV" high level PLC language developed in the Department of Measurement
Engineering, Technical University of Budapest, ensures bit, byte and word processing, the
possibility of symbolic I/O and internal variable names, single line expressions, IF-THEN-
ELSEIF-ELSE conditional structures and state transition graph structures. The development
system makes the line-by-line correction possible and ensures a PlY language level debugger
with built in LSS (logic state store)
