2 SERIAL COMMUNICATION MODULE REPLACEMENT
2 - 18
(3) Comparison between QnA/QnAS series and Q series
:Compatible, :Partial change required, ×:Incompatible
Switch name
Description
Compat-
ibility
Precautions for
replacement
Reference
section
QnA series QnAS series Q series
AJ71QC24N
AJ71QC24N-R2
AJ71QC24N-R4
A1SJ71QC24N1
A1SJ71QC24N1-R2
QJ71C24N
QJ71C24N-R2
QJ71C24N-R4
Mode switch
Each of the interface modes’ setting is
determined by the data communication
function to be used.
0: (For independent operation/linked
operation)
1: Dedicated protocol (format 1)
2: Dedicated protocol (format 2)
3: Dedicated protocol (format 3)
4: Dedicated protocol (format 4)
5: Dedicated protocol (format 5)
6: Nonprocedural protocol
7: Bidirectional protocol
8 to D: Setting unavailable
E: ROM/RAM/switch test
F: Self-loopback test
-
Set the switch settings
in the GX Developer
PLC parameter
settings.
*1
Section 2.7
Station number switch
The station number of the module for
when data communications is performed
using dedicated protocol is set.
-
Transmission
specification
switch
SW01
Operation
setting
Operation (independent operation/linked
operation) of the two interfaces is set.
-
SW02 Data bit setting
The data bit length of the data to be
transmitted/received is set.
-
SW03
Parity bit
enable/disable
setting
The parity bit ON/OFF of the data to be
sent/received is set.
-
SW04
Even/odd parity
setting
The type of parity bit to add to the data to
be transmitted/received is set.
-
SW05 Stop bit setting
The stop bit length of the data to be
transmitted/received is set.
-
SW06
Sum check
enable/disable
setting
The sum check code ON/OFF in
dedicated protocol/bidirectional protocol
data communications is set.
-
SW07
Write during
RUN enable/
disable setting
Write during RUN enable/disable in
dedicated protocol data communications
is set.
-
SW08
Setting change
enable/disable
setting
Mode switching and E
2
PROM write
enabled/disabled are set.
-
SW09
to
SW12
Transmission
speed setting
The transmission speed for when data is
to be transmitted/received is set.
-
SW13
to
SW15
- (All switches are set to OFF.) --