GE 350

CHAPTER 2: RS485 INTERFACE DNP PROTOCOL SETTINGS
SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE 2-13
• DNP UNSOL RESPONSE FUNCTION should be “Disabled” for RS485 applications, since
there is no collision avoidance mechanism.
• The DNP Time Sync IIN Period setting determines how often the Need Time Internal
Indication (IIN) bit is set by the 3 Series relay. Changing this time allows the 3 Series
relay
to indicate that a time synchronization command is necessary more or less
often
• Various settings have been included to configure Default Variation for the Binary
Inputs, Counters and Analog Inputs Objects. The default variation refers to the
variation response when variation 0 is requested, and/or in class 0, 1, 2, or 3 scans
• Up to 64 Binary Inputs and 32 Analog Input entries can be mapped to an item from a
list of 3 Series relay
status events and metered values. Status events correspond to
format FC134B.
• Each Analog Input point Deadband and Scale Factor can be set individually instead of
setting a general deadband or scale for different metering groups. This will avoid scale
and deadband conflicts for different meterings of the same nature.
• Up to 16 Binary/Control Outputs can be configured by selecting a Virtual Input or
Command from a list of 32 Virtual Inputs and Commands (Force Coils). Some legacy
DNP implementations use a mapping of one DNP Binary Output to two physical or
virtual control points. In Order to configure Paired Control Points the source for states
ON and OFF should be set to different Virtual Inputs or Commands.
• The DNP Technical Committee recommends using contiguous point numbers, starting
at 0, for each data type, because some DNP3 Master implementations allocate
contiguous memory from point 0 to the last number for each data type.
NOTE
NOTE:
Binary Inputs are inputs to the Master. Binary Outputs are outputs from the Master.
Analog Input Point 31 Scale Factor 1 0.001 ; 0.01 ; 0.1 ; 1 ; 10 ; 100 ;
1000 ; 10000 ; 100000
F85
Analog Input Point 31 Deadband 30000 0 to 100000000 F9
Binary Output Point 0 ON Select entry
from a list
Virtual Input 1 to 32 and Force
Coils
F86
Binary Output Point 0 OFF Select entry
from a list
Virtual Input 1 to 32 and Force
Coils
F86
Binary Output Point 15 ON Select entry
from a list
Virtual Input 1 to 32 and Force
Coils
F86
Binary Output Point 15 OFF Select entry
from a list
Virtual Input 1 to 32 and Force
Coils
F86
SETTINGS PARAMETER RANGE FORMAT