Measurement Computing WEB-TC - Manual (Page 15)

WEB-TC User's Guide Installing the WEB-TC
15
 System Info tab – summarizes the current network settings set for the WEB-TC, and provides a button that
when pressed flashes the POWER/COMM LED on the device. Settings on this tab are not configurable via
the web interface; use InstaCal to configure network settings.

Configuration tab – provides separate menu options for configuring your thermocouple, digital, and alarm
options. To change configuration settings, enter the user name (default is "webtc") and password (default is
"mccdaq") set for the device and click the
Log In button. The user name and password cannot be changed
from the web interface – you must use InstaCal to change them.
o Temperature menu option – Use the options on this page to set the thermocouple type for each
temperature channel pair.
The factory default configuration is Disabled. The Disabled mode disconnects the analog inputs from
the terminal blocks and internally grounds all of the A/D inputs. Any channel you don’t intend to use
should be left disabled.
o DIO menu option – Use the options on this page to set the direction of each digital I/O channel and
value of each digital I/O channel configured for Output.
o Alarm menu option – Use the options on this page to set up the temperature conditions to activate an
alarm, and the output state of the channel (active high or low) when activated. You can configure up to
eight independent alarms.
The configuration options are enabled on these pages when you are logged in. The device is calibrated to
the selected settings each time the "
Submit " or " Calibrate " button is pressed.

Help – summarizes the options on each web page, and includes step-by-step procedures for setting up your
temperature channels, digital channels, and alarms.
Logging in to a device
Configurable options are disabled until you log in with the user name and password set for the device. Only one
user can be logged in at a time. By default, the user name is set to webtc, and the password is set to mccdaq.
You can change these values with InstaCal.
Base64 encryption is used to encrypt the login name and password. JavaScript must be enabled on the browser
to encrypt login information. If JavaScript is disabled on your browser when you log in, the user name and
password values are transmitted as plain text with no encryption applied.
Configuring the WEB-TC using InstaCal
All hardware and network options are configurable with InstaCal. When the device is using its default
configuration, InstaCal has access to all functions on the device. Login is done in the background if the default
user name and password are assigned to the device.
By default, the user name is set to webtc, and the password is set to mccdaq. You can change these values with
InstaCal. If the user name and password have been changed, configurable options are disabled until you log in
with the user name and password set for the device. Only one user can be logged in at a time.
It is recommended that you change the user name and password from the default
To prevent unauthorized changes to your device configuration, make sure you change the user name and
password values from the default. In the event that you forget your settings, they can be reset to the default
values using the reset button on the device. Pressing and holding the reset button for three seconds sets all
network settings back to default including the user name and password.
Note : For security purposes, do not change the log in information to the name and password used to access
secure accounts, such as a credit card or bank account.
Setting the network parameters
Use InstaCal to change configurable network settings set on the WEB-TC. The network parameters are not
accessible via the web interface. The device is shipped configured with the following default settings.