Mitsubishi MELSEC Q Series, Programming Manual

Page: 461 / 816

7.7 Data Table Operation Instructions
7.7.3 Reading newest data from data table
7-121
7
APPLI
C
A
T
IO
N
INSTRUCTIONS
FPO
P
FPOP
(2) In the following program, the data in Var_D0 are stored to the data table D38 to D43 when
X1C turns ON, and when the number of stored data reaches 5, and X1D turns ON, the last-
stored data in the data table are stored to Var_R0.
[Structured ladder]
[ST]
FIFWP(X1C,Var_D0,D38);
FPOPP(X1D AND D38=5,Var_R0,D38);
[Operation]
Data ta bl e
-123
-1000
0
1234
55
4
0
D 42
D 41
D 43
D 39
D 40
D 38
D 44
X IC:ON
0 D 45
4444 Var _ D 0
Data ta bl e
-123
-1000
4444
1234
55
5
0
D 42
D 41
D 43
D 39
D 40
D 38
D 44
0 D 45
Data ta bl e
0
55
4
0
D 42
D 41
D 43
D 39
D 40
D 38
D 44
0 D 45
1234
Var _R0
E xecutes the F P O PP
i nstruct i on w hen D 38=5.
-1000
-123
4444
Si nce the num b er of
store d d ata bl oc k i s 4, the
FIFW P i nstruct i on i s
execute d w hen X IC turns ON
Data ta bl e
range
X I D :ON