ProSoft Technology MVI71-DNP - Manual (Page 39)

Installing and Configuring the Module MVI71-DNP ♦ PLC Platform
DNP 3.0 Master/Slave Communication Module
ProSoft Technology, Inc. Page 39 of 172
August 23, 2007
CD Idle Time
CD Idle Time : 10 #0-32000 mSec min idle time before transmit
Defines the minimum number of milliseconds to wait before transmitting a
message after the CD signal is recognized as low.
CD Random Time
CD Random Time : 20 #0-32000 mSec random idle time before transmit
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
CD Time Before Receive : 6 #0-65535 milliseconds before receive
Defines the number of milliseconds to wait before receiving characters after the
CD signal is recognized as high.
2.2.8 [DNP Master]
The following shows an example of the [DNP Master] section:
[DNP Master]
Internal ID : 1 #0-65534 identification code for this unit
Initialize IED Database: Yes #Initialize the IED input database areas (Y/N)
Event Messages to PLC : Yes #Pass received events to processor (Y/N)
Configure each parameter to suit the needs of your application:
Internal ID
Internal ID : 1 #0-65534 identification code for this unit
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
Initialize IED Database: Yes #Initialize the IED input database areas (Y/N)
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
Event Messages to PLC : Yes #Pass received events to processor (Y/N)
Enables the pass-through functionality that allows the module to pass
received timestamp events from the remote slave device to the processor. It
requires the configuration of block 9903 in the backplane command section.
Refer to the Block 9903 section of this User Manual for further information.