Technical data

Installing Virtual COM Port
Manual Documentation Number: ESP904-4513m Chapter 6 39
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com
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The Virtual COM Port feature allows Windows platform software, using standard API
calls, to be used in an Ethernet application.
The Install Virtual COM port software adds an ESP904 (COM#) port to the computer.
This shows up in the Device Manager. The COM number can be selected from a list
of available numbers. For example, in a computer already having a COM1 and COM2,
COM3 to COM 254 is available for the ESP904. It is recommended that COM Port 5
or higher be selected. The virtual COM port looks like a standard COM port to most
Windows based applications which allows the software to open a connection with the
serial port located anywhere on the LAN/WAN. When using the virtual COM port the
ESP904 is configured as a TCP or UDP Server.
Virtual COM Port Installation
Step 1: In Windows, select Install Virtual COM from the Programs list.
Start  Programs  B&B Electronics  VLINX  ESP Servers
 Install Virtual COM
The Search Setup window will appear.
Step 2: Select the Search all reachable servers check box, then click OK.
Figure 36. The Search Setup Window