User`s manual

14
(b) Communication speed setting
Bit location Bit location
Communication speed
(Unit: bps)
b15 to b8
Communication speed
(Unit: bps)
b15 to b8
50 0F
H
14400 06
H
300 00
H
19200 07
H
600 01
H
28800 08
H
1200 02
H
38400 09
H
2400 03
H
57600 0A
H
4800 04
H
115200 0B
H
9600 05
H
230400 0C
H
Transmission speed 230400 bps is available for only CH1 of the
QJ71C24N(-R2/R4).
When connecting external devices to both of two interfaces, the total of
the communication speed should be 115200bps or less (230400 bps
or less in the case of the QJ71C24N(-R2/R4). When connecting an
external device to either of two interfaces, the maximum of 115200 bps
is available for the interface (the maximum of 230400 bps in the case
of the QJ71C24N(-R2/R4). In this case, set 300bps for the other
interface to which no external device is connected.
Set "00
H
" to the interface for which "GX Developer connection" is set in
the communication protocol setting. Serial communication module will
operate at the communication speed set on the GX Developer.
(c) Communication protocol settings
Set number Contents Remarks
0000
H
GX Developer
connection
GX Developer communication speed and
transmission specifications are set automatically.
0001
H
Type 1
0002
H
Type 2
0003
H
Type 3
0004
H
Type 4
For communication by ASCII code using A-
compatible 1C frame or QnA-compatible
2C/3C/4C frame.
* Data communication is performed in the
message format of the set type.
0005
H
MC
protocol
Type 5
For communication by binary code using QnA-
compatible 4C frame.
* Data communication is performed in the
message format of type 5.
0006
H
Non-procedural
protocol
For communication using non-procedural protocol.
0007
H
Bidirectional protocol For communication using bidirectional protocol.
0008
H
For link settings
Set on the CH1 side when linking the operation of
CH1 and CH2 interfaces. (Operated by the
communication protocol on the CH2 side.)
0009
H
to
000D
H
Setting prohibited —
000E
H
ROM/RAM/switch test For the module's self-diagnostic test.
000F
H
Module loop back test For confirmation of module interface operations.
When no external device is connected to the interface, be sure to set
its communication protocol between "0" and "7".
The communication protocol for the interfaces of both CH1 and CH2
can be set to "0" at the same time.