7.
INITIAL SETTING OF TRANSMISSION CONTROL DATA
TO
BUFFER
MEMORY
MELSEGA
7.7 Transmission Control Settlng
c
L-
P
The following shows how to set items during transmission control and gives
an example.
7.7.1
How
to
set
transmkdon
control
L
This section explains how
to
designate transmission control and gives an
example of a sequence program.
r
ISettinn Method
I
0:
mthoutDc1IDc3control
........
*
....
..
.........
m/Dc3
send
mol
and
Dclloc3
1
:
with
DCl/Dc3
control
receive
control
are
ddgn&ed.
c
I
-ow1
iswritten.
0:
withoutDc2/Dc4oonbol
1:
mDc2/Dc4oonbol
Dc2/Dc4d~andDc2/Dc4
rde
-01
are
designated.
Example
I
vU71C24
VO
ddr-
80
to
SF)
(1) When DCl/DC3 send control and receive control are executed
(SW-
Proam)
c
I
(2)
When DCl/DC3 and DC2/DC4 send control and receive control are executed
(-I-
PTografn)
P
LI
TOP
I
H8 HllA
1
Hm H0301
is written
to
buh
addm
11AH.
P
I
(3) When DTR/DSR control is executed
(sequ-
Program)
L.
TOP
I
H8
mm
mxxx,bmtobuffwaddrswllAH.
r
i-
I
(4) When the transmission control function is not used
(SW-program)
c
7-20
c
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