Automatic Operation (Position Control)
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8.10 Use of Extended Positioning Table
8.10.1 Use of Extended Positioning Table
There are a standard area and an expansion area in the positioning data setting area, and
they have the following characteristics. Use them in accordance with the intended use.
No. of positioning data tables 1000 tables 100 tables
Table no. 1 to 1000 10001 to 10100
Positioning data setting by Control
Motion Integrator
Available Impossible settings
Positioning data setting by user
programs
Available
This setting is not reflected unless
the recalculation request is made
after writing data to the unit
memory by a user program.
Available
The operation can be started after
writing data to the unit memory by a
user program. There is no need to
request the recalculation.
Characteristics When setting positioning data in
advance by Control Motion
Integrator, the start time of an
operation is shorter than that when
using the extended area.
When setting positioning data by
user programs, the start time of a
request is shorter than that when
using the extended area.
However, as the recalculation is
performed after starting the
request, the starting time of the
operation is a little bit longer.
Application It is suitable for applications for
which positioning data is
predetermined such as a
movement amount and target
speed.
It is suitable for applications for
which positioning data varies
depending on the operation
according to the operation state.
The extended area is used when the setting values of the positioning table are not determined
until just before executing the positioning operation. Therefore, the positioning table can be
rewritten as needed, and the recalculation is not necessary. However, it is limited for up to
100 tables and cannot be set by Control Motion Integrator. Therefore, the positioning tables
need to be written to the prescribed addresses of unit memories by ladder programs. The start
time is longer than that for the standard area, and when performing the P-point or C-point
control in the extended area, note that the start time varies depending on the number of tables
to be executed consecutively.
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