9.1  PLC Connection 9-9
9.1.3 QnA Series Link
Communication Setting
Editor
Communication setting
(Underlined setting: default)
PLC
Be sure to match the settings to those made under [Communication Setting] of the editor.
Mode setting
Station number setting
Transmission setting
AJ71QC24, AJ71QC24N, A1SJ71QC24
*1 AJ71C24 (-R2/-R4): Max. 19200 bps
AJ71C24N (-R2/-R4): Max. 115200 bps (When CH1 and CH2 are used at the same time, a maximum of 115200 bps can be set in total.)
Item Setting Remarks
Connection Mode
1 : 1
 / 1 : n / Multi-link2 /
Multi-link2 (Ethernet) /
1 : n Multi-link2 (Ethernet)
Signal Level RS-232C
 / RS-422/485
Baud Rate
4800 / 9600 / 19200 / 38400 /57600 / 
115K 
bps
Data Length 8 bits
Stop Bit 1
 / 2 bits
Parity None / Odd / Even
Targe t  Port No. 0 to 31
Mode Setting Contents
5
Dedicated protocol  binary mode
Mode 5
Station No. Setting Contents
0 to 31
Station number
10: the tens place
1: the ones place
Switch Contents OFF ON Example: 19200 bps
SW01 Operation Independent Link
SW02 Data bit 7 8
SW03 Parity bit Not provided Provided
SW04 Parity Odd Even
SW05 Stop bit 1 2
SW06 Sum check Not provided Provided
SW07 Write while running Disabled Enabled
SW08 Setting change Disabled Enabled
SW09
Baud rate 
*1
SW10
SW11
SW12