Measurement Computing WEB-TEMP - Manual (Page 14)

WEB-TEMP User's Guide Installing the WEB-TEMP
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Default network settings
Network setting Default value
Identifier not set, optional
DHCP setting Enabled
IP address 192.168.0.101
Subnet mask 255.255.255.000
Gateway 192.168.0.1
Server Enabled
User name webtemp
Password mccdaq
MAC address 00:12:71:Cx:xx:xx, where xxxxx is the device’s serial number (read-only)
The following default network parameters are programmable with InstaCal.

Identifier : Text that identifies the WEB Series device. This value is optional, and is not set by default. Up
to 48 alpha-numeric characters can be entered.

DHCP : Enables configuration by a DHCP (Dynamic Host Configuration Protocol) Server. DHCP is a
service that automatically assigns IP addresses to clients supporting the protocol. If the connected network
has a DHCP server, the WEB-TEMP should be assigned an IP address shortly after it is powered up and
attached to the network. InstaCal will display the IP address assigned to the WEB-TEMP.
The default DHCP setting for the WEB-TEMP is Enabled. Disable this setting when the server is not
DHCP-enabled, or when entering a "static" IP address. Unless there is a reason to disable DHCP (such as
the network server is not DHCP-enabled), we recommend that you leave DHCP enabled.
 IP : The Internet Protocol (IP) address that is stored on the device. Use this address when a DHCP server is
not available or when DHCP is disabled.

Subnet : The Subnet Mask that is stored on the device. The Subnet Mask is the part of the IP address that
denotes the local Subnet. Use this address when a DHCP server is not available or when DHCP is disabled.

Gateway : The Gateway IP address that is stored on the device. Use this address when a DHCP server is not
available or when DHCP is disabled. A gateway is the IP address of the device that bridges subnets within
a network.

Server : Enables or disables the device's web page server. Enable this value to view the device's web page
with a browser. Disable access to the web page when you want to restrict access to the device to InstaCal or
the Universal Library API.

User Name and Password : The user name and password used to log in to a device session. Log in is
required only when changing configurable options on the device. Default values can be changed with
InstaCal.
A unique 64-bit physical (MAC) address is also assigned to the device. This address is set at the factory and is
not user-configurable.
Restoring factory default network settings
To restore network settings to factory default values, press and hold the device's reset button for three seconds.
If InstaCal is open when default settings are restored, click the Refresh Boards button on InstaCal's tool bar to
reflect the changes.
Calibrating the Hardware
The WEB-TEMP is calibrated to the selected device settings each time a Submit or Calibrate button is pressed
on a web interface configuration page, or the OK button is pressed on an InstaCal board configuration page.
Warm-up period
After you configure the hardware options, allow the WEB-TEMP to warm up for 30 minutes before taking
measurements. This warm up time minimizes thermal drift and achieves the specified rated accuracy of
measurements. For analog, RTD or thermistor measurements, this warm-up time is also required to stabilize the
internal current reference.