Set up COM port redirection

Use these procedures when a slave is connected to the serial port of the device server and the master, which must be an application residing on a Microsoft Windows system, requires COM port redirection.

Setup Tasks: Overview

To enable Com port redirection--which requires that RealPort software be running on the same PC as the master application--complete the following tasks:

1. Configure the serial port for RealPort. See Configure the Serial Port for RealPort below.
2. Install RealPort software on a host system.
3. Configure the port on the RealPort PC. See the PC’s documentation for information on configuring serial ports.

Configure the Serial Port for RealPort

Use this topic for information on configuring the Digi device.

1. Access the Digi device web interface from a web browser by entering the device’s IP address in the browser’s URL window.
2. Log into the web interface.
3. Do one of the following:
   • If the slave is using a supported serial port protocol:
     1. Choose Port from the main menu.
     2. Set the Device Profile to IA.
     3. Click Apply and enter the protocol information.
   • If the slave is not using a supported serial port protocol:

     1. Install the RealPort driver on your SCADA system. Refer to the RealPort Installation Guide as needed.

4. Use the RealPort port profile and the associated help text to configure the RealPort driver with the IP address and TCP port number used by the device server.

5. Follow the prompts to complete configuration of the RealPort driver.