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5
Field Communication
5.1
Bus & Protocol
The NTC-400 Series Router router can use a DB-9 male port or other type of serial port to connect via an RS-232 serial device
to an IP-based Ethernet LAN. These communication protocols give users access to serial devices anywhere over a local LAN or
the Internet. They can be either "Virtual COM" and "Modbus".
5.1.1
Port Configuration
Before using the field communication function you need to configure the physical communication port.
The port configuration screen allows you to configure the operation mode and physical layer settings for each serial
interface, and to quickly switch from one communication protocol to another for the serial port.
5.1.1.1
Port Configuration Setting
To view or change the serial port settings, open the Field Communication submenu, select Bus & Protocol and then click its
Port Configuration tab, the current Serial Port Definition settings will appear in a static display.
When you click the Edit button in the Action column the serial port definition fields become enabled and you can enter new,
or change existing, serial port parameters.
Item
Serial Port
NTC-400 Series
Figure 219 – Bus & Protocol
Figure 220 – Edit Serial Port Definition
Notes
System generated.
The serial port ID number of the serial port.
Description
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