High−level Instructions
3 − 265
Example: When the writing pointer has made one complete cycle
Reading
pointer ▲
K101
K100
0
DT0
DT1
DT2
DT3
DT4
DT6
0▲
1
2
3
DT7
4
K5
K5
K101
K102
K103
0
DT5
0
DT0
DT1
DT2
▲DT3
DT4
DT6
0▲
1
2
3
DT7
4
K5
K5
K100
K102
K103
0
DT5
Execution of F117 (FIFW) instruction
WR0
K105
K104
K104
An error occurs, and processing is not carried out.
Writing pointer 1 cycle
Writing
Because the number of data items stored in the FIFO buffer
(DT1=5) exceeds the size of the FIFO buffer (DT0=5), the
operation is not executed, and an operation error occurs.
To Next Page