SMC Networks FieldServer, Driver Manual

Page: 9 / 19

XML over HTTP Driver Manual
Page 9 of 19
5.3 Client Side Map Descriptor Parameters
5.3.1 FieldServer Specific Map Descriptor Parameters
Column Title Function Legal Values
Map_Descriptor_Name Name of this Map Descriptor. Up to 32 alphanumeric characters.
Data_Array_Name
Name of Data Array where data is to
be stored in the FieldServer. One of the Data Array names from
Section 4 .
Data_Array_Offset Starting location in Data Array.
0 to (Data_Array_Length-1) as
specified in
Section 4 .
Function Function of Client Map Descriptor. Rdbc, Wrbc, Wrbx, Passive_Client
5.3.2 Driver Related Map Descriptor Parameters
Column Title Function Legal Values
Node_Name Name of Node to fetch data from.
One of the Node names
specified in
Section 5.2 .
Length
Length of Map Descriptor, Number of
Elements to store into data arrays - this
needs to be separated by some non-
numeric character, e.g. space or comma.
Any integer.
Method*
HTTP Fetch Method for active Map
descriptors.
GET , POST
XML-URL HTTP URL - this does not include the IP.
Up to 200 alphanumeric
characters.
Write_Command*
When using POST method this is the
payload of the data sent to the address.
Up to 200 alphanumeric
characters (special parameters
outlined in
Section 5.3.4
allowed).
Linked_Map_Descriptor
This is the active mapdescriptor
responsible for fetching the XML data. Up to 32 alphanumeric
characters.
Element*
XML Element to store from the XML
response. The syntax is as follows
“
Elment.Child Element. Grand Child
Element.Attribute
” If the attribute is left
out, the driver stores the Element
contents. If left out, the driver stores the
Data of the furthest child of the matching
element.
Up to 200 alphanumeric
characters.
Search_Value*
String search value to uniquely match the
Element the driver want to store, this could
be any Attribute of the XML response. If
left out, the driver uses the first element to
store the data.
Up to 200 alphanumeric
characters.
Search_Element*
Used to specify which Element the driver
searches for a match. Up to 200 alphanumeric
characters.
Search_Attribute*
Used to specify which Attribute the driver
searches for a match. Up to 200 alphanumeric
characters.
HTTP_RESP_DA
This data array stores the HTML response
from a remote device after a Write. Up to 32 alphanumeric
characters.