FieldServer FS-8700-47 User Manual
Page 18

FS-8700-47 DNP 3.0 Driver Manual
Page 18 of 51
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5.3.2.
Driver Specific Map Descriptor Parameters
Column Title
Function
Legal Values
Node_Name
Name of Node to fetch data from
A Node Name specified in 
“Client 
Node
Descriptor”.
Special
Map
Descriptor’s
used by the DNP 3.0 Driver 
are 
discussed
in
Error!
Reference
source
not
found..
Length
Length of Map Descriptor. If a request length 
is too large the DNP 3.0 driver will produce a 
message and a panic. The maximum length 
is a function of the data object and data 
variation being processed. 
1 – 1000
Address
Starting address of data element to be read
0, 1 , 2 etc
The following parameters apply only to the DNP 3.0 Driver
DnpDataType
Corresponds to the Data Object Types defined 
in the DNP data object Library. Enter as 
decimal number. Refer to Appendix A.9 
1, 2, 10, 12, 30, 31, 32, 33, 
40, 41, 20, 22, 23, 50,51, 52, 
60, 80 
DnpDataVari
Corresponds to the Data Object Variant 
defined in the DNP data object Library. Enter 
as decimal number. 
 
When configured as a Server the driver can 
respond to requests for the so called ‘Default’ 
variation. These are polls where the variation 
is zero. 
 
To configure the driver to be able to respond 
to requests for the default variation then you 
must create a MapDesc where the 
DNPDataVari=0. 
 
Note that the driver considers variation=1 as 
the default in most case. 
0,1,2,3 etc 
 
Legal values are determined 
by the value of dnpDataType. 
 
Additional information is 
provided in Appendix A.9 
DnpQualifier*
This parameter is ignored by the driver acting 
as a Server. The qualifier of the incoming poll 
is used to form the response. If the poll 
qualifier is not supported by the driver’s 
response function then the driver responds 
with Qualifier 1. The response function 
supports the following qualifiers; 
0,1,6,7,8,17,28, 
DnpMultiMsg
Simply ensure that that there is a Server MD 
for each object requested. No special actions 
are required to configure the Server to 
respond to requests for multiple object types. 
Refer to Appendix A.20 for more information. 
5.3.3.
Timing Parameters
Column Title
Function
Legal
Values
Scada_Hold_Timeout
Time Server side waits before notifying Client that node is 
offline on FieldServer Client side. 
>1.0s
