Echelon SmartServer 2.2 - Manual (Page 186)

SmartServer 2.2 User’s Guide 187
2. Click Submit. The attachment to the enterprise connection is deleted.
Retrieving File Attachments
For sending file attachments, the Web Connection application on the SmartServer follows the Direct
Internet Message Encapsulation (DIME) protocol specification, which is supported by Microsoft IIS
with .NET V1.1 and WSE (Web Services Enhancements) 2.0.
DIME is a binary message format that can be used to encapsulate one or more application-defined
payloads of arbitrary type and size into a single message construct. Each payload is described by a
type, a length, and an optional identifier:

Both URIs and MIME media type constructs are supported as type identifiers.

The payload length is an integer indicating the number of octets of the payload.

The optional payload identifier is a URI enabling cross-referencing between payloads.
DIME payloads may include nested DIME messages or chains of linked chunks of unknown length at
the time the data is generated. DIME is strictly a message format: it provides no concept of a
connection or of a logical circuit, nor does it address head-of-line problems.
For more details on the DIME protocol specification, including information you will need when
extracting file attachments from your Web connection, consult the following Web site:
www.gotdotnet.com/team/xml_wsspecs/dime/draft-nielsen-dime-01.txt.
Viewing Connections
You can view all the connections in your in your network, or the connections on a specific channel,
device, or functional block in a single graph or table. To do this, follow these steps:
1. Right-click a network, channel, device, or functional block in the SmartServer tree, point to
Overview, and then click Connections in the shortcut menu.