ProSoft Technology MVI46-DNP User Manual

Page 102

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MVI46-DNP ♦ SLC Platform

Reference

Master/Slave Communication Module

Page 102 of 143

ProSoft Technology, Inc.

August 23, 2007

[Section]/Item Value

Range

Description

RTS Off:

0 to 65535
milliseconds

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
milliseconds

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

Modem:

Yes or No

This parameter defines if a dial-up modem is used on
the secondary DNP slave port. A modem cannot be
used if the port is configured as a master.

Connect Timeout:

0 to 65535

Defines the number of milliseconds to wait for the CD
signal to be set high. The CD signal indicates a
connection is made using a dial-up modem.

First Character Delay:

0 to 65535

Defines the number of milliseconds to wait before
sending the first message after the connection is first
made. This delay only applies to the first packet sent to
the modem.

Redial Delay Time:

0 to 32000

Defines the minimum number of milliseconds to wait
before a redial attempt is made by the slave.

Redial Random Delay:

0 to 32000

Defines a random millisecond time range to be added to
the redial delay time before the modem is accessed.

Idle Timeout:

0 to 65535

Defines the number of milliseconds the modem is
inactive before it will disconnect.

Phone Number:

ASCII String Data This field contain a null-terminated, ASCII character

string used by the dial-up modem. The string must
contain all characters required by the modem. An
example string is ATDT1800222333. Maximum length
is 34 bytes including the terminating 0.

Collision Avoidance:

Yes or No

This parameter defines if collision avoidance will be
utilized on the primary DNP slave port.

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 Random Time:

0 to 32000

Defines the range of random time to be added to the
CD Idle Time before a message will be transmitted from
the slave.

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.

BI Class:

0 to 3

This parameter specifies the default class to be utilized
for all the binary input points in the DNP database that
are not defined in the override list section.

AI Class:

0 to 3

This parameter specifies the default class to be utilized
for all the analog input points in the DNP database that
are not defined in the override list section.

Float Class:

0 to 3

This parameter specifies the default class to be utilized
for all the floating-point input points in the DNP
database that are not defined in the override list
section.

AI Deadband:

0 to 32767

This parameter specifies the default deadband value
assigned to all points not defined in the override list for
the analog input point type in the DNP database.

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