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Serial Parameters
Check the serial communication parameters in your Serial Device’s user’s manual. You should set up
NPort’s serial parameters with the same communication parameters used by your serial devices.
Baud rate
Setting Factory Default Necessity
50 bps to 230400 bps 115200 bps Required
NPort supports baud rate setting from 50 bps to 230.4 Kbps.
Data bits
Setting Factory Default Necessity
5, 6, 7, 8 8 Required
When the user sets Data bits to 5 bits, the stop bits setting will automatically change to 1.5 bits.
Stop bits
Setting Factory Default Necessity
1, 2 1 Required
Stop bits will be set to 1.5 when Data bits is set to 5 bits.
Parity
Setting Factory Default Necessity
None, Even, Odd, Space, Mark None Required
Flow control
Setting Factory Default Necessity
None, RTS/CTS, DTR/DSR, Xon/Xoff RTS/CTS Required
FIFO
Setting Factory Default Necessity
Enable, Disable Enable Required
NPort’s serial ports provide a 16-byte FIFO both in the Tx and Rx directions. Disable the FIFO setting
when your serial device does not have a FIFO to prevent data loss during communication.
Interface
Setting Factory Default Necessity
NPort 5210: RS-232 only NPort 5210: RS-232 Required
NPort 5230:
RS-232 for port 1
RS-422, 2-wire RS-485, 4-wire
RS-485 for port 2
NPort 5230:
Port 1: RS-232
Port 2: RS-485 2-wire
Required
NPort 5400 Series User’s Manual
5-11