Measurement Computing WEB-TEMP - Manual (Page 11)

WEB-TEMP User's Guide Installing the WEB-TEMP
11
In the following procedure, the WEB-TEMP is installed at the "host" LAN, and the computer is installed at the
"client" LAN.
Caution! This procedure should only be performed by a network administrator or computer professional.
Incorrect settings can significantly disrupt a network.
1. Connect the WEB-TEMP to a LAN (host) that has access to the Internet using the cable provided.
The Link/Activity LED will illuminate steady green to indicate that you have established a valid Ethernet
connection.
2. Configure the WEB-TEMP at the host LAN to access the web page:
o Assign a fixed "private" static IP address to the WEB-TEMP.
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-TEMP on port 80. Contact your network administrator or
computer professional for more information.
Note : To access the WEB-TEMP 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-TEMP by name, a DNS entry must be assigned.
The WEB-TEMP 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-TEMP using InstaCal and the Universal Library
InstaCal cannot automatically detect a WEB-TEMP that is installed on a different subnet. To change
configuration settings with InstaCal or communicate with a WEB-TEMP 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-TEMP. 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-TEMP
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 12 and "Configuring the WEB-TEMP using InstaCal "
on page 13 for detailed information.
Connecting the WEB-TEMP directly to a computer
Use this procedure to connect the WEB-TEMP 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-TEMP.
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 .