ProSoft Technology MVI69-DNPSNET - Manual (Page 85)

Reference MVI69-DNPSNET ♦ CompactLogix or MicroLogix Platform
Distributed Network Protocol Interface Module
ProSoft Technology, Inc. Page 85 of 119
November 3, 2008
DNP Digital Output Data
This data type stores digital control and command state data received from the
DNP master unit with a value of 1 or 0. The size of this data area is determined
from the configuration parameter Binary Outputs (defines number of words, each
containing 16 binary output points). These data are transferred from the module
to the PLC using the write operation. Therefore, these data are read-only for the
PLC, as the PLC cannot directly alter these values in module. It is the
responsibility of the DNP master unit to maintain this data. For example, if the
DNP master sets a digital point on, it will remain on until the master resets the
point. A data flow diagram for the digital output data is shown in the following
figure.