Measurement Computing WEB-TC - Manual (Page 12)

WEB-TC User's Guide Installing the WEB-TC
12
Once a TCP/IP connection is established, you can access the web interface from devices within the same
network by entering the URL that is printed on the WEB-TC. The device's home page will open.
Note : To open
the home page from devices installed outside of the network, enter the public IP address set for the device.
How you access the web interface once a TCP/IP connection is established depends on your configuration:
 When the WEB-TC is connected to the same network as the computer browser, enter the URL that is
printed on the device to open the device's home page.
 When the WEB-TC is connected to a different network as the computer browser, enter the public IP
address set for the device to open the device's home page. Refer to "Connecting to a LAN for
communication across networks" below for more information.
Connecting to a LAN for communication within a network
Use this procedure to connect the WEB-TC to a local area network (LAN). When connected, all computers
installed on the same network can access the WEB-TC's web interface.
Note : This procedure assumes the network server is equipped with DHCP (dynamic host configuration
protocol), and will automatically assign an IP address to the WEB-TC when it is connected to the network.
1. Connect the WEB-TC to the network using the Ethernet cable provided.
The Link/Activity LED will illuminate steady green to indicate that you have established a valid Ethernet
connection.
2. Open your web browser, and enter the URL that is printed on the device label.
The WEB-TC Measurements page opens. You can view current measurement data from this page. A log in
name (default is "webtc") and password (default is "mccdaq") are required to change configuration settings.
If the WEB-TC is not recognized by the network
If the WEB-TC Measurements page does not open, the server may not have DHCP, or DHCP may be disabled
on the server. In either situation, assign a static IP address to the WEB-TC before connecting to the network.
Refer to "Connecting the WEB-TC directly to a computer" on page 13 for instructions. After you assign the
static IP address, connect to the network using the standard Ethernet cable shipped with the device, open the
browser, and enter the static IP address.
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 to a LAN for communication across networks
In order to communicate with the WEB-TC from a computer connected to a different network, such as over the
internet, you must change the network configuration of the network router.
In the following procedure, the WEB-TC 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-TC 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-TC at the host LAN to access the web page:
o Assign a fixed "private" static IP address to the WEB-TC.