Setting The Cpie Serial Port - Omron NV3W-MR20L-V1 Operation Handbook

Setting the CP1E Serial Port
To have the NV and the CP1E communications, the both serial ports must
have the same setting. Use the PLC programming tool CX-Programmer to
set the communications on the CP1E.
NV-CP1E communications setting example
Both the NV and the CP1E support the high speed communication of 115,200 bps.
Connect them in this baud rate.
Set the RS-232C serial ports on both of the NV and the CP1E as follows:
Mode:

Baud rate: 115,200 bps

Data length:

Stop bit:

Parity bit: Even

 Be sure to change the stop bit on the PLC from the default 2 to 1
The stop bit for the NV serial communications is fixed to 1 . Therefore, the stop bit of the
PLC serial port must be changed from the default 2 to 1.
Note: Communications may be enabled, even when the stop bit on the PLC is 2 while the bit on the NV is 1. However,
be sure to set the both to 1.
Communications setting for the RS-232C serial port built in the CP1E
Use the PLC programming tool CX-Programmer. Follow the steps below to set the RS-232C
serial port built in the CP1E.
* After this setting is completed, turn OFF and then ON the power of the CP1E.
Connect the CX-Programmer and the
1
CP1E online using a USB cable.
Change the CP1E operation mode to
2
"Program Mode" (Stopped).
Upload the PLC settings (including the
3
built-in RS-232C serial port setting)
8
Host Link
7
1
from the CP1E.
Set the built-in RS-232C serial port on
4
the PLC Settings.
Write the PLC settings (including the
5
built-in RS-232C serial port setting) into
the CP1E.
Turn OFF and then ON the power of
6
the CP1E. (The settings are reflected
only after the power is turned ON.)