XML over HTTP Driver Manual
Page 4 of 19
HTTP XML DRIVER DESCRIPTION
The Ethernet HTTP XML Driver allows the FieldServer to transfer data to and from a device over Ethernet
using the HTTP/XML Driver protocol. The FieldServer can emulate either a server or client.
The XML Driver is built on HTTP web technology (Port 80) and uses pages formatted in XML syntax to
respond to HTTP requests or allows XML responses to be decoded and stored. Both a client and a server
are supported.
The Server Side is an XML formatted response of the internal Data Array structure contained within the
FieldServer, requested from a remote client device to the FieldServer URL.
The Client Side uses a HTTP GET request to a specified URL to request XML data. The driver has the
ability to decode the XML response and store different Elements uniquely identified by some attribute
within the element. The data of the matching Element is stored in the FieldServer Data Arrays the
matching Element is stored in the FieldServer Data Arrays.
FieldServer Mode
Comments
Server
This mode is always enabled within the XML driver, and is requested by “http://<ip
address>/data_arrays.xml” where <ip address> corresponds to the FieldServer IP
Address.
Client
Supports multiple client connections to different URLs, with associated decoding
map descriptors linked to an active GET URL request.
Max Nodes Supported
FieldServer Mode
Nodes
Comments
Client
32
The Driver can establish a connection to several different IP
Addresses.
Server
0
The Server Side is always enabled and defined on the
connection; hence the driver does not allow any server node
selection.
DRIVER SCOPE OF SUPPLY
2.1
Supplied by Sierra Monitor for this Driver
PART #
Description
FS-8915-10 UTP cable (7 foot) for Ethernet connection
