3 - 20 3 - 20
MELSEC-F
3 SPECIFICATIONS
(Continued from the previous page)
BFM number
Decimal
(Hexadecimal)
Attribute Application
Name
Initial value
Decimal
(Hexadecimal)
Flash ROM
save
Reference
section
1610
(651
H
)
R/W
For fixed buffer
communication
Fixed buffer
communication
Transmission/rec
eption
request/Execution
result
When sending request or reception complete
confirmation signal of connection No.1
• For sending
1) Write value
0001H : Sending request
2) Read value
0001H : Transmission ready
0002H : Between data being sent to while
waiting for a response (only when
procedure exists)
0004H : Stored when transmission complete
If instantly receiving the next data,
depending on the timing of FROM
instruction, 0001H is stored without
reading 0004H
0008H : Stored when transmission error
0000H : Stored when the open processing or
close processing is completed
• For receiving
1) Write value
Write value
Procedure
No procedure
0002H
Response
transmission
to an
external
device
Allows the
following data
to be received
2) Read value
Read value
Procedure
No procedure
0001H At
data
reception
0004H
Response
transmission
complete
Acceptance
for the data
reception
complete
0008H
Receiving process cannot be
normally completed
0000H
Stores after open/close
process
0
(0000
H
)
Chapter 6,
Chapter 7
(Continues on the next page)
Содержание FX3U-ENET
Страница 1: ...USER S MANUAL FX3U ENET ...
Страница 2: ......
Страница 159: ...8 6 8 6 MELSEC F 8 COMMUNICATION USING MC PROTOCOL MEMO ...
Страница 295: ...App 25 App 25 MELSEC F APPENDIX MEMO ...
Страница 297: ......