.....
..
...
c
.
-
.
i
F
b
.
c
L
.
yr
c
.
P
I
ri
F
L
c
..
r
7
.
INITIAL
SETnNG
OF
TRANSMISSION CONTROL
DATA TO
BUFFER
MEMORY
...............................................
7
.
1
.
7
.
21
7.1
setting
Rs-232C
CD Terminal
Check
Enable/Diile
...........................
7
-2
7.2
Setting the Transmission
Method
for
RS-232C
.................................
7 -3
using
"a
alfduplextransm'wsion
.......................................
7-4
7.2.1
Setti
prioritv
of
transmission
to the
A171
C24
7.2.2
Setting
non-priority
of
transmission
to the
A171C24
withthehdfdwttansmission
.....................................
7-5
7.3
Reading Transmission
Error
Data
...........................................
7 -7
7.3.1
Reading the
error
LED
display status
..................................
7 -7
7.3.2
Turning
OFF
error
LEDs
.............................................
7
-8
7.4
Settings
in
the No-Pratocol
Mode
...........................................
7
-9
7.4.1
Setting the
m>-protocd
mode
receive-completed
code
(for receive with
VariaMe-length
data)
..................................
7
-9
7.4.2
Specifying no-protocol receive completion data
length
(fixed length)
.......
7
-
10
7.4.3
Settingawordorbyteunitintheno-protocolmode
.....................
7-11
7.4.4
Setting a buffer memory area for no-protocol
send
......................
7
-
12
7.4.5
Setting
a
Mer memory areafor no-protocol receive
....................
7- 13
7.5
Settings in
the
Bidirectional
Mode
..........................................
7
-
14
7.6
ModeSwitchSetting
.....................................................
7-17
7.6.1
Readinginthemodesettingstate
...................................
7-17
7.6.2
Mode
switching designation
.......................................
-7
-
18
7.7
Transmission Control Setting
.............................................
-7
-
20
7.7.1
How to
set
transmission control
.....................................
7
-.
20
7.7.2
Settingsfor changing the addresses
of
DC1
to
Dc4
codss
...............
7
-
21
8
.
COMMUNICATIONS USING DEDICATED PROTOCOLS
................
8
.
1
.
8
.
11
2
8.1
Data
Flow
in
Communications with
Dediied
Protocols
.......................
8
.
1
8.2
ProgrammingHints
......................................................
8-2
8.21
To
write data to the
special
use
area
in
buffer
memory
..................
8
-2
8.22
PC
CPU
operation during data communications
.......................
8
-3
8.23
Precautions during data communications
.............................
8
-4
8.3
Basics
of
Dedicated Protocol Control Procedures
............................
8
-5
8.4
Basic Formats
of
Dedicated Protocd
.......................................
8
-6
8.4.2
Control
format2
..................................................
8-8
8.4.3
Control format3
..................................................
8-9
8.4.4
Control
format4
.................................................
8-
10
8.4.5
Setting
protocol
data
.............................................
8-
11
8.5
Transmission
Sequence
Timing Charts and Communications
Time
.............
8
-
16
8.6
Character
Area
Data Transmission
........................................
8
-
1
9
8.7
Device Memory Reamrite
..............................................
8
-
22
8.7.1
Commandsanddeviceranges
....................................
8-22
8.7.2
Batch read
in
units
of
bits
.........................................
8
-
28
8.7.3
Batch read
in
units
of
words
.......................................
8
-
30
8.7.4
Batch write
in
units
of
bits
.........................................
8
-
34
8.4.1
COWOIfOrmatl
..................................................
8-7
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