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Rockwell Automation GMLC Reference Manual User Manual

Page 443

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Publication GMLC-5.2 - November 1999

406

Calculation Blocks

See the Online Help for information on the Build Table Block Pop-Up
Menu and for detailed instructions on how to take information from an
existing spreadsheet and place it into the Build Table Block.

The Build Table block resides on the CAM Palette.

Building CAM Position Profiles

A CAM Position profile has two parts: a column of Master axis position
values (in master axis position units) and a column of Slave axis position
values (in slave axis position units). You can create these columns in the
same Build Table block, or you can use a separate Build Table block for
each column.

Each point in a CAM Position profile consists of two values, one for the
master axis position (in the Master column) and one for the slave axis
position (at the corresponding location in the slave column). GML
Commander treats these point values as relative values. This means that,
when the cam executes, GML Commander uses only the change between
two points’ profile values to generate motion. This lets you begin a cam
starting at any master or slave axis position.

The cam tables in the motion controller can store any number of
individual profiles of any length, provided the total number of points for
all profiles does not exceed the capacity of the table. If you have iCODE
version 3.0 or later, each cam table can contain up to 4000 points
numbered 0 through 3999. If you have iCODE version 2.3 or earlier, each
cam table can contain up to 2000 points numbered 0 through 1999.

!

ATTENTION: If you use a separate Build Table block
for each column, be sure to type the same value into the
Starting Offset field in both blocks.