Set COM Port window

This window configures the COM port used by Nrio devices.
Figure 447.   Set COM Port for Nrio devices
Image

This window opens from the Nrio Device Manager when you click the Set COM Port button (Image).

Property Value Description
Port Name text name of the port
Defines the communication port to use: none, COM2 or COM3.
Trunk number
Specifies which trunk the port is connected to.

Each RS485 connection is called a trunk. If your network has multiple RS485 trunks, a separate network and remote I/O module are required to support each.