8.9 Reconstruction of Positioning Data by User Programs
8-49
Recalculation
Recalculation is necessary after rewriting positioning data using user programs. The
procedure of recalculation is as follows. When recalculation is not performed, the operation is
executed with the positioning table before rewriting.
1. Change the positioning table in the unit memories.
2. Turn on the recalculation request (Y7) in the I/O area.
3. Confirm that the recalculation done flag (X7) in the I/O area is on. (Confirm that the
recalculation process is completed.)
(Note): I/O numbers of the recalculation request (Y7) and recalculation done flag (X7) vary according to the value of
the "Starting word number" allocated to FP7 MC Unit.
Recalculation request
Recalculation done
Recalculation
processing
Recalculation processing
The recalculation done flag turns on when the recalculation by the recalculation request is
completed. After that, the recalculation done flag turns off when the recalculation request
signal turns off.
For details of the areas used for rewriting positioning data, refer to "16.7.4.1 Control
Area for Buffer Control" and "16.7.4.2 Positioning Data Setting Area".
For details of the area used for the recalculation process, refer to "16.5.2 Setting
Parameter Control Area".
The units used for the recalculation process are as follows.
Setting parameter control area
Unit
memory
no. (Hex)
Name Default Description
UM 00284
Recalculation
starting table
number
U1
This is used to rewrite positioning data using a user program.
Reconstructs the positioning data which starts with the table
number specified in this area when the recalculation request (Y7)
turns on.
Range: 1 to 1000
UM 00285
Recalculation
starting table size
U1
Reconstructs the positioning data of the table size specified in this
area when the recalculation request (Y7) turns on.
Range: 1 to 500
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