Positioning Data Setting Areas - Panasonic FP2-PP2T Technical Manual

17.6.3 Positioning Data Setting Areas

They are the areas for setting positioning data. The positioning data for 4 axes can be set individually.
The positioning data is stored in the table format of 625 points per axis.
When executing the automatic operation (position control) with the positioning unit, specify the number of
the positioning table that has been specified in advance, and start the position control. After the start-up,
the motor is automatically controlled according to the settings of the table. There are the method that
creates the positioning table using Configurator PM that is an exclusive setting tool, and the other
method that writes the positioning table in a prescribed address by programs.
There are the standard area of 600 points that is specified by No. 1 to 600, and the extended area of 25
points that is specified by No. 10001 to 10025.
The standard area is used when the setting values of the positioning table are predetermined. It can be
set using Configurator PM, and can be rewritten from the programs, too. However, if the positioning table
is changed by the program, the caulculation is necessary to restructure the positioning data before
executing the automatic operation. This function enables to read the positioning data of 600 points in
advance and to prepare for the start-up within the positioning unit, and enables to shorten the start-up
time for the positioning. When using Configurator PM to download the positioning data, the data is
restructured automatically, so the calculation is not necessary. However, the calculation is necessary
after rewriting the poisitoning data from the program. The procedures for the calculation are as follows.
1. Change the positioning table in the shared memory.
2. Turn on the recalculation request contact (Y87) in the I/O area.
3. Confirm the recalculation done contact (X7) is on (Confim the completion of the recalculation.)
If the data is not recalculated after rewriting the positioning table by the ladder program, note that the
operation will be executed with the positioning table before the rewriting.
The extended area is used when the setting values of the positioning table cannot be determined until
just before executing the positioning operation. For example, in the application of alignment using an
image processing, the moving distance is determined by the image processing. Therefore, the
positioning table cannot be determined until just before sarting the positioning operation. In that case, the
positioning table is set just before the start-up of the positioning. In the extended area, the positioning
table can be rewritten as needed, and the recalculation is not necessary. However, it is up to 25 tables,
and Configurator PM cannot be used. The programs should be used to write the positioning table in the
prescribed address in the shared memory. The start-up time is longer than the standard area, and when
performing the P point control or C point control in the extended area, note that the start-up time varies
depending on the number of tables to be executed consecutively.
How to use each area and the precautions are as below.
How to use
Area to be used when
Standard the setting value of the
area positioning table is
predetermined.
Area to be used when
the setting value of the
Extended positioning table cannot
area be determined until just
before executing the
positioning operation.
17-38
Number Table
of points number
600
1 to 600
points
10001
25 points to
10025
Setting using Setting using
Configurator PM ladder program
Available
(Calculation for
Available
restructuring is
necessary.)
Available
(Calculation for
Not available
restructuring is
not necessary.)