An instance of this function block type controls the motion of a
"loader" mechanism for transferring a workpiece from a "source"
mechanism to an adjacent "destination" mechanism. It is assumed that
the loader (for example an instance of the
SOL_MDLL type) moves in
the source-to-destination direction when the
TRUE , and in the reverse direction when it is
. It is also assumed that the loader itself contains mechanical stops
at both extremes of the motion.
The ECC and its associated
REQ algorithm shown above
illustrate how this functionality is accomplished with Ladder Diagram
system configuration for an example of the use of an instance of this