Omron Programmable Terminals NT31 NT31C - Manual (Page 177)

6-7 Section Setting Conditions for Communications with Host by Using Memory Switches
167
6-7-6 Setting the Communication Type for Serial Port B
Set the communication type (RS-232C or RS-422A) for serial port B by following
the operation from the System Menu shown below.
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by
pressing the [
↓] (next screen) or [↑] (previous
screen) touch switch.
Press the Comm. B Select touch switch to
display the communication type to be set.
The setting option changes each time the
touch switch is pressed.
Ver 3.10
Reference: f serial port B is used for RS-485 communications, RS-422A must be set as its
communication type.
To set other memory switches, select the relevant screen using the [ ] (next
screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the
Quit touch switch. The settings made last will be set and the NT31/NT31C will
return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press
the Abort touch switch. The NT31/NT31C will return to the MAINTENANCE
MODE MENU screen with the previous settings still in effect.