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Dnp master database – ProSoft Technology 5201-DFNT-DNPM User Manual

Page 14

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DNPM ♦ ProLinx Gateway

DNPM Protocol Configuration

DNP 3.0 Master

Driver Manual


Page 14 of 56

ProSoft Technology, Inc.

September 30, 2009

Variable Name

Data Range Description

RTS On:

0 to 65535

This value represents the number of 1 ms increments to be
inserted between asserting the RTS modem line and the
actual transmission of the data.

RTS Off:

0 to 65535

This value represents the number of 1 ms increments to be
inserted after the last character of data is transmitted before
the RTS modem line is dropped.

Min Response Delay: 0 to 65535

Minimum time between receiving a request and transmitting a
response. Allows master time to disable transmitter on an
RS-485 network.

Collision Avoidance Parameters

Collision Avoidance:

Yes or No

This parameter defines if the collision avoidance functionality
is to be applied to the port. If the parameter is set to No,
collision avoidance is not used. It will be used if set to Yes. If
collision avoidance is used, it requires a special cable.

CD Idle Time:

0 to 32000

Defines the minimum number of milliseconds to wait before
transmitting a message after the CD signal is recognized as
low.

CD Time Before
Receive:

0 to 65535

Defines the number of milliseconds to wait before receiving
characters after the CD signal is recognized as high.

3.2

[DNP Master Database]

The [DNP Master Database] section of the CFG file sets the size of each data
type utilized by the module in order to define the database. The example and
following table lists the parameters defined in this section:

[DNP Master Database]

Binary Inputs : 2 #0-500 word count to hold BI data

Analog Inputs : 50 #0-500 points of analog input data

Counters : 10 #0-250 points of counter data

Binary Outputs : 2 #0-500 word count to hold BO data

Analog Outputs : 40 #0-500 points of analog output data

Variable Name

Data Range Description

[DNP Master
Database]

This section defines the database for the module

Binary Inputs:

0 to 500

Number of words for digital input points to configure in the
DNP Master device. Each word contains 16 binary input
points.

Analog Inputs:

0 to 500

Number of analog input points to configure in the DNP
Master device. Each point will occupy a one-word area in the
module memory.

Counters:

0 to 250

Number of counter points to configure in the DNP Master
device. Each point will occupy a two-word area in the module
memory. This number corresponds to the number of frozen
counters. The application maps the counters to the frozen
counters directly.

Binary Outputs:

0 to 500

Number of words for digital output points to configure in the
DNP Master device. Each word contains 16 binary output
points.

Analog Outputs:

0 to 500

Number of analog output points to configure in the DNP
Master device. Each point will occupy a one word area in the
module memory.

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