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ProSoft Technology MVI71-DNP User Manual

Page 42

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MVI71-DNP ♦ PLC Platform

Installing and Configuring the Module

DNP 3.0 Master/Slave Communication Module

Page 42 of 172

ProSoft Technology, Inc.

August 23, 2007

Parameter
Number

Parameter Name

Parameter Description

3 Data

Object

4 Data

Variation

5 Cmd

Func

6 Device

Address

7 Point

Count

8

DNP DB Address

9

IED DB Address

10 Poll

Interval

The definition of each parameter required for each command is provided in the
following table.

Bits in the Port/Flags parameter are dependent on the data type. The following
table defines the Port/Flags bits for binary input, analog input and counter data
points.

Port/Flags Bits

Description

Decimal Equivalent

0 to 1

Communication port (0=Internal, 1=Port 1, 2=Port 2,
3=Port 3)

0 to 3

2

Enable/Disable Command (1=Enable, 0=Disable)

4

3

RBE Flag
(0=Events from IED, 1=Events by module)

8

4 to 7

Not Used

For these data types the qualifier used in the data request is dependent on the
Point Count and Address in Slave fields in the command as follows:
ƒ

If Point Count < 0, then use Qualifier 06h (All points, packed & -Point Count =

# of points to consider)

ƒ

If Address in Slave = 0 & Point Count > 0, then use Qualifier 00h or 01h

(points 0 to Point Count –1)

ƒ

If Address in Slave > 0 & Point Count > 0, then use Qualifier 00h or 01h

(Address in Slave to Address in Slave + Point Count –1)

The following table defines the Port/Flags bits for binary output and analog output
points.

Port/Flags Bits

Description

Decimal Equivalent

0 to 1

Communication port (0=Internal, 1=Port 1, 2=Port 2,
3=Port 3)

0 to 3

2

Enable/Disable Command (1=Enable, 0=Disable)

4

3

Poll Type (0=Poll, 1=Exception)

8

4

Data Source (0=DNP Database, 1=IED Database)

16

5 to 7

Not Used

For these data types the qualifier used in the data request is dependent on the
Point Count and Address in Slave fields in the command as follows:
ƒ

If Address in Slave = 0 & Point Count > 0, then use Qualifier 17h or 28h

(Point Count specified starting at point 0)