ProSoft Technology MVI94-DNP - Manual (Page 69)

MVI94-DNP ♦ Flex I/O Reference
DNP 3.0 Server over Ethernet Communication Module User Manual
ProSoft Technology, Inc. Page 69 of 131
December 17, 2010
5.1.3 Functional Specifications
The module has two DNP protocol ports that can be user configured to operate in
a Master/Slave or in a Slave/Slave redundant port configuration.
User defined internal register space is accessible to the protocol driver and to the
FLEX processor memory.
DNP 3.0 Slave Protocol Specifications
The DNP Slave port(s) accepts DNP commands to control and monitor data
stored in the module’s DNP Slave databases. If a DNP Master port is also
configured, a portion of these slave databases can be derived from or can control
IED devices connected to the DNP master port.

Report-by-Exception data is logged to the module’s database

Supports unsolicited messaging

Each DNP point type is user configurable by point

Class assignments are completely user-definable on a Type and point basis
(BI, AI, FI, DI point types)

Supports clock synchronization from a master or from the processor

Up to 400 events are stored for Floats, Binary In, Analog In and Double
Inputs

Collision avoidance algorithm per DNP organization for redundant port
switching (redundant slave mode)

Special modem AT command string and timing support for dialing out on
redundant port (redundant slave mode)
DNP 3.0 Master Protocol Specifications
The DNP 3.0 Master port can be configured as a virtual DNP Master device that
actively issues user-defined DNP commands to nodes on the network.

The Master port supports 300 user defined commands, each one containing
its own set of data link and application layer characteristics

Master port logically supports up to 40 slave devices

Individual command configuration includes conditional or continuous polling
and Poll Delay Time

Slave status and Command status available for transfer to the processor

Event data received from the slave devices updates the module database
(Date and Time stamping is not stored or used by module)

Special command handling for Digital Output CROB under processor control
for pulse output control