How do I limit movement to one direction to stop reversal of the axis?

How do I limit movement to one direction to stop reversal of the axis?

If it is an axis with a REP_DIST and REP_OPTION set to 1, then when the end position is “behind” the current position, add the REP_DIST to the MOVEABS target position value.

IF new_position - DPOS < 0 THEN
    New_position = new_position + REP_DIST
ENDIF
MOVEABS(new_position)

If the axis is moving at the time you want to load the new moveabs, then compare with ENDMOVE.

IF new_position - ENDMOVE < 0 THEN
    New_position = new_position + REP_DIST
ENDIF
MOVEABS(new_position)

Otherwise with the same logic, simply do not load the move.

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