Mitsubishi MELSEC-A series, Programming Manual

Page: 301 / 508

7. APPLICATION INSTRUCTIONS
7
−
99
MELSEC-A
Program Examples RFRP
A program to read data of 10 points starting with address 10 of the A68AD which is
loaded in the slot for the remote station of which I/O numbers are 140 to 15F to W52
to 61 when X3 is ON.
*1: The contact which corresponds to M1 shown in the program example should be converted into a
pulse. If a pulse is not used, following execution of the RFRP instruction will be disabled.
*2: The contact which corresponds to M0 shown in the program example should be turned ON by the
SET instruction. If the OUT or PLS instruction is used, the RFRP instruction may often be executed
incorrectly.
•
Coding
0 LD X003
1 PLS M1
4 LD M1
5 SET M0
6 LD M0
7 MPS
8 ANI Y14E
9 ANI X15E
10 ANI Y14F
11 ANI X15F
12 RFRP H0140 K10 W052 K10
23 MPP
24 AND X15E
25 RST M0
26 RST Y14E
27 END
0
4
6
Use a pulse signal for
this command. (*1)
Provide interlock using
the RFRP instruction
execution flag.
If the RTOP instruction is used to the same station,
provide interlock using the RTOP instruction execution flag.
X003
M1
M0
Y14E X15E Y14F X15F
X15E
PLS M1
H K K
RFRP 0140 10 W052 10
SET M0
RST M0
RST Y14E
When X3 is ON, M0 turns ON.
If the RFRP and RTOP instructions are not being
executed when M0 is ON, the RFRP instruction
is executed, and Y14E is turned ON.
At read completion, M0, and Y14E are reset.
(*2)
Executed only once.
Turned OFF by the
sequence program.
Turned ON by
the special
function module.
For 2 link
scans
Executed only once.
Turned OFF by the
sequence program.
Turned ON by
the special
function module.
RFRP
X15E
Y14E
M0
M1
X3
ON
ON
ON
OFF
OFF
OFF