Measurement Computing WEB-TC - Manual (Page 13)

WEB-TC User's Guide Installing the WEB-TC
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o Configure the firewall/router to map a static "public" IP address to the "private" IP address assigned
above. Record this address for use in step 3.
o Configure the firewall/router to forward incoming traffic from the public IP address to the HTTP port
("port 80") of the private static IP address.
Note : If your network has an HTTP server already running, network address translation (NAT) allows
different ports to redirect to the WEB-TC on port 80. Contact your network administrator or computer
professional for more information.
Note : To access the device using InstaCal and the Universal Library, configure the firewall to allow
incoming traffic to the UDP port ("port 54211" by default).
3. At the client LAN, open your web browser, and enter the "public" IP address recorded in step 2 above.
Note : To access the WEB-TC by name, a DNS entry must be assigned.
The WEB-TC Measurements page opens. You can view current measurement data from this page. A log in
name and password are required to change configuration settings.
Accessing the WEB-TC using InstaCal and the Universal Library
InstaCal cannot automatically detect a WEB-TC that is installed on a different subnet. To change configuration
settings with InstaCal or communicate with a WEB-TC using programs written with the Universal Library,
manually add the public IP address to InstaCal. InstaCal can then search the public address provided for the
WEB-TC. We recommend that the port number be set to 54211 for use with InstaCal and the Universal Library.
Port 80 is used for the web interface. For information on port configuration, contact your network administrator
or computer professional.
Configuring the WEB-TC
All hardware options are configurable with InstaCal or the web interface. InstaCal must be used if any of the
network parameters need to be changed, such as the IP address of your device. Configuration settings are stored
in non-volatile memory in EEPROM, and are loaded on power up.
Refer to the sections "Using the web interface" on page 14 and "Configuring the WEB-TC using InstaCal" on
page 15 for detailed information.
Connecting the WEB-TC directly to a computer
Use this procedure to connect the WEB-TC directly to a computer. This scenario provides local access only,
and requires that you set up your computer to use a
static IP address for communication with the WEB-TC. If
you are not using a network hub, a CAT-5 (or higher) crossover cable is required to connect to the computer's
Ethernet port. If you are connecting to your computer through a network hub or switch, the Ethernet cable
provided with your device can be used.
Knowledge of network configuration is required
If you are not familiar with network configurations and have questions regarding your network settings, consult
your network administrator or a computer professional.
1. Select Start > Control Panel > Network Connections .
2. Double-click on Local Area Connection .
3. Select Internet Protocol (TCP/IP) and click Properties .