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BASIC NETWORK
Serial Port
This device has one DB-9 male port used for serial communication. To use, connect an RS-232 or RS-485 serial
device to an IP-based Ethernet LAN.
Port Configuration
Before using a Virtual COM or Modbus, configure the DB-9 male port first.
■ Operation Mode: Choose the purpose of the port. It can be Virtual COM or Modbus. To prevent unknown
serial devices from connecting, you can disable this option.
■ Virtual COM: Create a virtual COM port on a PC/Host and provide access to serial devices connected to
the IDG gateway.
■ Modbus: This protocol is widely used on meters. Choose this option if you want to connect a device and
communicate with it by this protocol.
■ Interface: Choose RS-232 or RS-485
■ Baud Rate: Set the baud rate (bps) of the serial port. The value can be 9600, 19200, 38400, 57600, or
115200.
■ Data Bits: Choose 7 or 8 as the data bit.
■ Stop Bits: Choose 1 or 2 as the stop bit.
■ Flow Control: Choose RTS/CTS, DTS/DSR, or None for flow control.
■ Parity: Choose Odd or Even.
Virtual COM
Create a virtual COM port on a PC/Host and provide access to serial devices connected to the IDG gateway. Users
can access, control, and manage serial devices through the Internet no matter where they are located.
TCP Client Mode
In TCP Client Mode, a TCP connection to a pre-defined host computer is establised when serial data arrives. After
the data has been transferred, it is disconnected from the host computer by using the TCP alive check or idle
timeout settings.
■ Operation Mode: Choose TCP Client.
■ Connection Control: To keep the connection with the TCP server all the time, choose Always On. To keep
the connection only when transmitting data, choose ON-Demand.
■ Connection Idle Timeout: The TCP connection will be terminated if it idles longer then this timeout setting.
This is only available if the Connection Control is set to ON-Demand.
■ Alive Check Timeout: The TCP connection will be terminated if it doesn't receive a response from the alive-
check.
■ To Host: Click Edit to enter IP address of FQDN of the remote host (TCP server).
■ Remote Port: Enter the TCP port of the remote host.
■ Definition: Check to enable the rule.
TCP Server Mode
In TCP Server Mode, a unique IP:Port address is provided on a TCP/IP network. This operation mode supports up to
four simultaneous connections at the same time.
MultiConnect
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