Omron NB3Q-TW**B series Connection Manual page 107

4 Connecting to Schneider PLCs
 When Using Modbus RTU Protocol
PT default communication parameters: 9600bps (Baud Rate), 8 (Data Bit), even (Parity Check), 1
(Stop Bit) and 1 (PLC Station No.)
RS232 Communication
4
RS485 Communication
4-5
NB-series Programmable Terminals Host Connection Manual (V108)