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c
HAPTER
6:
Computer Interface Operation
Model 372 AC Resistance Bridge and Temperature Controller
If DNS reverse-lookup is enabled on the network DNS server, and the DNS address
parameters are correctly configured, the Model 372 will perform a reverse-lookup to
determine if a hostname is assigned for the Model 372’s configured IP address. This
will occur regardless of whether the hostname was configured dynamically using
DDNS, or manually by the network administrator. The returned hostname will appear
in the Actual Hostname parameter, in the View IP Config submenu of the Interface
Setup menu.
Menu navigation (Read Only):
Interface
Q
View IP Config
Q
Actual Hostname
When using naming systems other than DNS, the Model 372 cannot assign the Preferred
Hostname or retrieve the Actual Hostname.
Domain Name:
A domain is a collection of network devices that are managed according
to some common characteristic of its members. Domains can contain subdomains
which are subsets within the domain. The hierarchy can contain several dot sepa-
rated levels which flow from right to left. For example, lakeshore.com contains the
top-level-domain “com” and the subdomain “lakeshore”. When using the Domain
Name System (DNS) to connect to a specific host device on a network, the device's
hostname is tacked onto the left of the domain name. For example, the “www” in
www.lakeshore.com refers to the Lake Shore web server, located within the internet
domain “lakeshore.com.”
If the Model 372 is connected to a network with Dynamic DNS (DDNS) capability, a
DNS entry is automatically created using the Preferred Hostname and Preferred
Domain Name parameters and the assigned IP address. The Preferred Domain Name
parameter can only be accessed using the NET interface command (section 6.6.1), or
by using the Ethernet configuration page (section 6.4.2) of the embedded website on
the Model 372.
If DNS reverse-lookup is enabled on the network DNS server, and the DNS address
parameters are correctly configured, the Model 372 will perform a reverse-lookup to
determine if a domain name is assigned for the Model 372’s configured IP address.
This will occur regardless of whether the domain name was configured dynamically
using DDNS, or manually by the network administrator. The returned domain name
will appear in the Actual Hostname parameter, in the View IP Config submenu of the
Interface Setup menu.
When using naming systems other than DNS, the Model 372 cannot assign the Preferred
Domain Name or retrieve the Actual Domain Name.
Menu navigation:
The preferred domain name can only be entered using a computer interface NET
command, and viewed using the NET? query. Refer to section 6.6.1 for details on the
NET command and query.
6.4.2 Viewing Ethernet
Configuration
When the Ethernet interface is enabled, two submenus become available: Modify IP
Config, and View IP Config. All configurable settings are available under the Modify IP
Config submenu, and the current state of the Ethernet configuration is detailed in the
View IP Config submenu. This is designed to eliminate confusion as to which are the
configurable Static-IP settings, and which are the currently configured settings that
could have been configured using any of the three configuration methods (DHCP,
Auto-IP, or Static-IP). The method used for the currently established connection is
shown in the LAN status parameter of the View IP Config submenu (section 6.4.2.1).