Micromod Micro-PWC: 53PW6000 MicroPWC Installation and Setup Manual - Manual (Page 75)

Micro-PWC
™ Installation & Setup Guide
@aGlance/IT Server Interface 65
8.2 THE @aGlance/IT Server Operation
The @aGlance/IT API for Micro-DCI translates between the @aGlance/IT methods and data structures,
and those of the Micro-DCI Global Database.
8.2.1 Configuring the @aGlance/IT Server Internal Interface
There are two aspects to @aGlance/IT server configuration: external interface configuration and internal
interface configuration. The @aGlance/IT external interface configuration is used to identify tagnames and
attributes (atoms) in the Micro-DCI global database, and is described in the Micro-PWC Configuration
Guide.
The @aGlance/IT internal interface configuration, described here, is used to identify the nodes on which
@aGlance/IT servers will run. Servers identify themselves to @aGlance/IT at run time, and client applica-
tions specify, at run time, the names of the servers with which they wish to communicate. Internal configu-
ration, accomplished using the @aGlance/IT Administration Tool, is required so that the server nodes can
be recognized by @aGlance/IT clients. When a client issues a request to communicate with a server appli-
cation, @aGlance/IT will look for it on servers which have been identified using the @aGlance/IT Adminis-
tration Tool.
After an @aGlance/IT server has been defined, the @aGlance/IT item available from the System Window
Menu button provides access to the external interface. The external interface provides the ability to identify
the set of tagnames and their associated attributes (atoms) which will be recognized by the @aGlance/IT
servers. It also allows you to configure translations of the attribute (atom) names, to make them recogniz-
able to applications on other platforms.
8.2.1.1 Registering Server Nodes
To access the @aGlance/IT Administration Tool, from Windows select Start > Programs > MicroMod
Automation > Micro-PWC > @aGlance/IT Administration. The @aGlance/IT Administration Tool window
will be displayed. The main options on this window are:
• Server Hosts (server host registration)
• Proxies (client registration)
• Permissions (permission configuration)
Use the Server Hosts option to register all potential server node names in the @aGlance/IT configuration
database for the local node. Server registration identifies and characterizes nodes which contain a server
that client applications will access. When the Server Hosts option is selected, the user interface provides a
text entry box labelled Server Host. To register a server node, enter the Internet host name of the server in
this text entry box.
Server registration is only necessary on nodes where a client application (e.g., Microsoft Excel) exists. All
nodes containing client applications have to register the name of the Micro-PWC system which contains
the @aGlance/IT server, in order to find and communicate with the server.
✎
NOTE Configuration of the @aGlance/IT internal interface on the Micro-
PWC system is performed using utilities provided by Axeda
Systems Inc. It is assumed that the user has had Windows software
training and/or experience, and has an understanding of the
Windows environment. It is further assumed that users creating
custom @aGlance/IT clients are familiar with @aGlance/IT
development software and the documentation (including on-line
help) supplied by Axeda Systems Inc..