Sending Control Method - Mitsubishi MELSEC-F User Manual

6 FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)

6.2 Sending Control Method

* <<Sending 32 words from D1000 to the external device>>
X002
91
Send
instruction
M200
Send instruction
(Self-holding)
129
Initial processing normally
completed BFM#=0001H
Open completion signal
BFM#1602=0005H
Write the send data word
count and the send data in BFM
Fixed buffer send instruction and
transmission completion BFM#1610
6 - 3
This section explains the control method when data is sent from the Ethernet module
to an external device using the fixed buffer No. 1 and the area corresponding to
connection No. 1 as an example.
Transmission
M201 M202
abnormally completed
Transmission
normally
completed
D101.2
Value of
BFM#1610
D101.3
Value of
BFM#1610
Initial Open Send data
processing processing writing
1)
2)
3)
TO
[BMOVP
Data sending Response
receiving
7)
4)
W R
0001H 0002H
6)
5)
MELSEC-F
(M200 )
Send
instruction
(Self-holding)
U1\
[MOVP K32 G1664 ]
Number of
send words
in the fixed
buffer No.1
U1\
D1000 G1665 K32 ]
Head of Fixed
send data buffer No.1
U1\
[MOVP H1 G1610 ]
Transmission
request/status
U1\
[MOV G1610 D101 ]
Transmission Value of
request/status BFM#1610
(M201 )
Transmission
normally
completed
(M202 )
Transmission
abnormally
completed
[END ]
R
0002H/0003H
6 - 3