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6 - 17
MELSEC-F
FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)
6
6 - 17
(Send program)
(See Subsection 5.6.1)
•For FX
3U/FX3UC Series PLCs
Program example for the unit No. 0
Open processing program
M8000
M200
X002 M307 M201 M202M300
D101.2
D101.3
[= H5 ]
[MOV K4M300
(M200
(M202
(M201
]
[MOVP K32 ]
D1000[BMOVP K32 ]
)
[END ]
[MOVP H1 ]
[MOV D101 ]
)
)
)
* <<Reading the status of Ethernet module>>
* <<Sending 32 words from D1000 to the external device>>
U0\
G1602
Send
instruction
Initial
completed
HUB
connection
completed
OPEN
instruction/status
Transmission
normally
completed
Transmission
abnormally completed
U0\
G1664
U0\
G1665
U0\
G1610
U0\
G1610
U0\
G28
Transmission
abnormally
completed
Transmission
normally
completed
Send
instruction
(Self-holding)
Send
instruction
(Self-holding)
Initial
completed
Head of
send data
Fixed
buffer No.1
Send
request/
status
Send
request/
status
Value of
BFM#1610
Number of
send words
in the fixed
buffer No.1
Value of
BFM
#1610
Value of
BFM
#1610
Normal completion
processing
Abnormal completion
processing