Omron NB-series Operation Manual page 513

Note 1 The USB slave port on NB Unit is used for the upload/download and commissioning of program by
default, but in the User Project Mode, it will shift to a USB port only supporting the printing function
instead of other functions when the "Enable Print" option in the System Setting Mode is checked.
2 In the Downloader Mode or System Setting Mode, the function of using USB Slave port to download
always works properly without the influence of the above settings.
3 If the printer cannot work normally as a result of the NB Unit power-on, reset or other operations,
please restart the printer.
4 When the printing function cannot be used, refer to 6-3-1 Software Trouble in the NB Series Startup
Guide Manual for the solution.
The descriptions of USB Slave port in the User Project Mode:
Setting Items
[Enable Printer
Function] (set
in the System
Setting Mode)
In conclusion, the printing is available only after the printing function in NB-Designer and NB Unit
are both enabled.
NB-series Programmable Terminals NB-Designer Operation Manual(V106)
USB slave port is only for printing.
Checked
USB slave port can't be used for
Unchecked printing because it is in download
mode.
[Enable Print] (set in the NB-Designer)
Checked
Since the project is not set in
printing mode, printing is not
available.
Since settings of the NB unit and
the project are not set in printing
mode, printing is not available.
7 PictBridge Printing
Unchecked
7-5
7