User`s manual

352
[For the Q series C24]
*1 All items in the table should be set to OFF for the interface which "GX Developer connection" is set in the switching
mode number designation. The Q series C24 operates with the values set in GX Developer.
*2 The setting value of the communication speed.
• Transmission speed of 230400 bps is available for only CH1 of the QJ71C24N (-R2/R4) and LJ71C24(-
R2).
• When connecting external devices to both of two interfaces, the total of the communication speed should
be 115200 bps of less (230400 bps or less the QJ71C24N (-R2/R4)). When connecting an external device
to either of two interfaces, the maximum of 115200 bps is available for the interface (a maximum of
230400 bps for the QJ71C24N (-R2/R4) or LJ71C24(-R2)). In this case, set 300 bps for the other interface
to which no external device is connected.
• Set "80H" to the interface for which "GX Developer connection" is set in the switching mode number
designation. The communication speed set on the GX Developer is applied.
Transmission setting GX Developer side setting
Operation setting Independent
Data bit 8
Parity bit Yes
Even/odd parity Odd
Stop bit 1
Sum check code Yes
Write during RUN Allowed
Setting modifications Allowed/Prohibited
Communication
speed
(Unit: bps)
Bit position Communication
speed
(Unit: bps)
Bit position
Remarks
b15 to b8 b15 to b8
50 50bps 14400 86H
Slow down the communication speed when
data cannot be communicated normally due
to overrun error, framing error, etc. in
communication with external devices.
300 80H 19200 87H
600 81H 28800 88H
1200 82H 38400 89H
2400 83H 57600 8AH
4800 84H 115200 8BH
9600 85H 230400 8CH
0
b7
b6 b5
b4
b3
b2
b1 b0
b0
b7
b6
b5
b4
b3
b2
b1
b815
78
12
OFF(0) ON(1)
Bit
Description
Remarks
Be sure to set the CH1 side
to OFF(0).
Operation setting
Independent Link
Parity bit is not included.
Vertical parity
Valid only when parity bit is
set to Yes.
Data bit
Parity bit
Even/odd parity
Stop bit
Sum check code
Write during RUN
Setting modifications
YesNO
Odd Even
NO Yes
Prohibited Allowed
Prohibited Allowed
bto
80H to 8FH
80H to 8FH
b8
to
b15
Communication
speed
Bit
Description
Set value Remarks
80H to 8FH
Refer to *2
CH1 side
*1
CH2 side
*1