Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 299)

5.10 System Function Instructions
5.10.2 First-in First-out (FINFOUT)
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The parameters are described in the following table.
( 3 ) Programming Example
In the following programming example, a FIFO table is created with a data size of 12 words, input size of 4 words, and
an output size of 2 words, and then the FINFOUT instruction is executed.
Parameter Name Description I/O
Data input command (In-Cmd)
Data is stored in the FIFO table when this command turns
ON.
IN
Data output command (Out-Cmd)
Data is transferred out of the FIFO table when this com-
mand turns ON.
IN
Reset command (Reset)
The number of words to store is set to 0 when this command
turns ON.
IN
First address of FIFO table (FIFO-Tbl)
+0 word: Data size IN
+1 word: Input size IN
+2 word: Output size IN
+3 word: Data storage size OUT
+4 word and on: Data OUT
First address of input data (In-Data) First address of input data IN
First address of output data (Out-Data) First address of output data IN
FIFO table full (Tbl-Full) Turns ON when the FIFO table is full. OUT
FIFO table empty (Tbl-Emp) Turns ON when the FIFO table is empty. OUT
FIFO table error (Tbl-Err) Turns ON when the FIFO table has an error. OUT