2011

Table Of Contents
WD_MLRHX.dwg: hexagon-shaped user block (horizontal rung /
vertical ladders)
WD_MLRVX.dwg: hexagon-shaped user block (vertical rung /
horizontal ladders)
2 Change the default values as desired, but do not delete any of the
attributes you find.
3 Move or change the text size of the RUNGFIRST attribute definition.
4 Save and exit the drawing.
Insert new ladder
There is no limit to the number of ladders that can be inserted into a drawing,
but ladders cannot overlap each other. You can insert a new ladder at any
time. Multiple ladder fragments in the same vertical column must be vertically
aligned along their left-hand side. These limitations do not apply when X-Y
Grid or X-Zone referencing is selected.
1 Click Schematic tab Insert Wires/Wire Numbers panel Insert
Ladder drop-down Insert Ladder.
2 Specify the width and spacing of the ladder.
3 Specify the first reference, index, and rungs.
Index is the increment number for line reference numbering (default =
1). If you do not want every line reference number to show up then you
can use the AutoCAD Erase command to get rid of the extras. Do not
erase the top-most line reference number. It is the MLR block of the ladder
and carries the intelligence.
NOTE It is not necessary to enter a value for the length since it is calculated
once the first reference, index, and rung values are set.
4 Specify whether to create a one-phase or three-phase ladder. If you select
to create a three-phase ladder, the Width and Draw Rungs options are
unavailable.
5 Specify how to draw the rungs.
No Bus just draws the line reference numbers, while No Rungs just draws
the hot and neutral bus with rungs. Add rungs with the AutoCAD
960 | Chapter 12 Wire/Wire Number Tools