Omron NB3Q-TW**B series Connection Manual page 121

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