Omron NV3W-MR20L-V1 Operation Handbook page 35

Connecting PC and PLC via NV
Connect the PC and the PLC via the NV to transfer the ladder programs from
the PC (CX-Programmer) to the PLC and to monitor the PLC from the PC.
Configuration example
In this configuration, you can transfer the ladder programs and monitor the PLC from the
CX-Programmer through the NV.
PC
PC connection cable
Setting
*The NV requires no setting.
1. On the CX-Programmer, open a project of a CS, CJ or CP-series PLC.
Double-click the PLC in the project tree. The Change PLC Dialog Box will appear.
2. Set Network Type to NV-Thru (USB Port). Click the OK Button.
Double-click!!
3. Connect the PLC online.
The CX-Programmer and the NV-Designer use the same USB port. Therefore, only one of them is

online-connected with the NV at a time.
You can also connect the PLC through the NV with the CX-Programmer by selecting Auto Online -

Direct Connection from the PLC menu.
NV-series PT Simple Operation Handbook
NV3W-V1/NV4W/NV3Q
SYSMAC - CS / CJ / CP Series
Host Link
35