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7
FIXED BUFFER COMMUNICATION (WITH THE NO PROCEDURE
CONTROL METHOD)
(Receive program)
• For FX
* <<Storing the data received from the external device to the fixed buffer No.2 in D1000 and after>>
M8000
[=
[=
User applications are described at the area enclosed with
7 - 14
/FX
Series PLCs
3U
3UC
Program example for the unit No. 0
D100
H1
]
Receiving
status
D100
H8
]
Receiving
status
[MOV
[MOV
[MOV
* <Adjustment when an odd number of data bytes is received
[ADD
D101
Received
data count
* <Word count from number of receive data
[DIV
D101
Received
data count
U0\
[BMOV
G2689
Fixed buffer
No.2
[MOV
.
MELSEC-F
U0\
G1611
D100
]
Receiving
Receiving
instruction/status
status
U0\
G2688
D101
D101
]
]
Received
Received
data count
data count
>
H1
D101
]
Received
data count
>
H2
D103
]
Received
word count
D1000
D103
]
Receive data
Received
storage head
word count
U0\
H2
G1611
]
Receiving
instruction/
status
[INCP
D102
]
Receive
abnormal
processing
[END
]
7 - 14
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