ProSoft Technology MVI71-DNP - Manual (Page 130)

MVI71-DNP ♦ PLC Platform Reference
DNP 3.0 Master/Slave Communication Module
Page 130 of 172 ProSoft Technology, Inc.
August 23, 2007
[Section]/Item Value Range Description
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.
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.
[Section]/Item Value Range Description
[DNP Master] Definitions for DNP Master port if utilized.
Internal ID: 0 to 65534 This is the DNP address for the module. All
messages with this address from the master
will be processed by the module.
Initialize IED Database: Yes or No This parameter determines if the module will
request data from the processor to initialize
the IED database input data areas. If this
option is utilized, ladder logic is required to
send the requested block from the processor
to the module.
Event Messages to PLC: Yes or No This parameter determines if event messages
received on the master port will be sent to the
processor. If this option is utilized, ladder
logic must handle the 9903 blocks generated
by the module.
[Section]/Item Value Range Description
[IED Database] Database definition for DNP master port if
utilized
Binary Inputs: 0 to 15360
points Number of binary input points contained in
the IED database to transfer to the PLC
processor and obtained from the attached
IED units.
Analog Inputs: 0 to 960 pointsNumber of analog input points contained in
the IED database to transfer to the PLC
processor and obtained from the attached
IED units.
Counters: 0 to 480 pointsNumber of counter points contained in the
IED database to transfer to the PLC
processor and obtained from the attached
IED units.