Table of Contents
Advertisement
5. NON
PROCEDURE
PROTOCOL
COMMUNICATIONS
MELSEC QnA
5.8.2
Practice using ASCIIHBIN conversion
Use ASCll++BIN conversion and print the PC data to a printer.
a
System configuration
This system writes the data from the PC to the QC24 buffer memory (non procedure
transmission area).
The printer receives and prints the data from the QC24.
t h
B
.Q4ACPU AX42
AY42 AJ71
RS-232C
v)
X00
Y40 X. Y80
le
X3F
Y7F X. Y9F
II
1
1
I
Prlnter (A7NPR)
Inh
AJ71 QC24 settings
I
Mode Settina
1
~
-
~
~
-
-
~~~~~~~
Transmission Specifications
Switch
Setting
Setting Contents
Setting Item
Switch
SWOl
OFF iindeDendent oDeration)
ODeration settina
-
CHI
;
Set
to No. 6
non procedure
protocol
1
CH2:
Set to No.
1
1
OFF
Set switches SW13 to SW15 on the left side of the module to OFF.
SW02
[
Data
bit
setting
I
ON (8 bits)
SW03
I
Parltv bit enable/disable settina
I
ON (Enable)
!
w
I
SW04
i
EvenDariW/odd Daritv settina
1
ON (Even)
1
~~
,
~
I -
~
-,
0
06
0
08
SW05
1
Stop blt
setting
I
OFF
(1
bits)
SW06
I
Checksum enable/disable settina
1
OFF (Disable)
I
-
1
SW08
i
Setting modification enableidisable
i
ON (Enable)
+
- - - - - I
I
ET
(9600BPS)
*
Since user frames are used, set SW08 to ON.
Ish
A7NPR transmission specifications
(a) RS-232C interface
Asynchronous
(b) Mode
Half-duplex
(c) Baud rate
9600bps
(d) Data format 11 bitdcharacter
Start bit
..........
1 bit
Data
...............
8 bits
Parity (even)
....
1 bit
Stop bit
..........
1 bit
5
-
33
Advertisement
Table of Contents
