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FS-8700-47 DNP 3.0 Driver Manual Page 19 of 51
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5.3.4. Map Descriptor Example 1 – Discrete Data.
In this example the following Map Descriptor will be used allow a remote device to request discrete input data.
// Server Side Map Descriptors
Map_Descriptors
Map_Descriptor_Name ,Data_Array_Name ,Data_Array_Offset ,Function ,Node_Name ,Address ,Length ,Scada_Hold_Timeout ,dnpDataType ,dnpDataVari
A1 ,DA_DI1 ,0 ,Passive ,Node_A ,0 ,10 ,5 ,1 ,1
5.3.5. Map Descriptor Example 2 – Class Data
Class data is a composite set of data comprising data points from different data types. In this example the Map Descriptors have been created to
serve class 0 data. Map Descriptors associated with the Class 0 Map Descriptor tell the driver which data to serve as the class data. When a
request is received it is matched against a Class Map Descriptor. If a matching Map Descriptor is found the driver builds a response using the data
requested in the associated Map Descriptors. In this example 10 Digital Inputs and 2 Analog Inputs will be served as the response.
// Server Side Map Descriptors
Map_Descriptors
Map_Descriptor_Name ,Data_Array_Name ,Data_Array_Offset ,Function ,Node_Name ,Address ,Length ,DnpAssoc ,dnpDataType ,dnpDataVari
ServeClass0Data ,DA_Dummy ,0 ,Server ,Node_A ,0 ,1 ,1 ,60 ,0
ServeClass0Data_DI ,DA_DI ,0 ,Server ,Node_A ,0 ,10 ,1 ,1 ,1
ServeClass0Data_AI ,DA_AI ,0 ,Server ,Node_A ,0 ,2 ,1 ,30 ,1
The DNP 3.0
driver will use data
from this array to
form the response.
This Map Descriptor can
respond to a read/write poll
from a remote DNP device.
This Map Descriptor will be
used to process any poll
whose objects match and
whose addresses fall inside
the address and length
range specified by this Map
Descriptor.
This is Map Descriptor will process
commands for a DNP Object Type 1
variation 1 Map Descriptor i.e. binary
input.
These are Server Map
Descriptors
’ServeClass0Data’ defines the
Map Descriptor used to respond to
request for Class 0 Data.
(Type=60 vari=0).
The dnpAssoc field forms the association
between these Map Descriptors.