SATEC SA300 ezPAC Operation Manual - Manual (Page 115)

Chapter 10 Configuring Communication Protocols Configuring DNP3
SA300 Substation Automation Unit 115
Parameter Options Default Description
Analog Input
Object 32-bit
32-bit –Flag
16-bit
16-bit –Flag 16-bit -Flag The default AI object variation for
requests with qualifier code 06 when no
specific variation is requested
Analog Input
Change Event
Object
32-bit -Time
32-bit +Time
16-bit -Time
16-bit +Time
16-bit +Time The default AI change event object
variation for requests with qualifier code
06 when no specific variation is
requested
Binary Counters (BC)
Number of BC
to Generate
events
0-64 3 0 The total number of BC change event
points for monitoring
Binary Counter
Object 32-bit +Flag
32-bit –Flag
16-bit +Flag
16-bit –Flag 32-bit -Flag The default BC object variation for
requests with qualifier code 06 when no
specific variation is requested
Binary Counter
Change Event
Object
32-bit -Time
32-bit +Time
16-bit -Time
16-bit +Time
32-bit +Time The default BC change event object
variation for requests with qualifier code
06 when no specific variation is
requested
Frozen Binary
Counter Object 32-bit +Flag
32-bit –Flag
32-bit +Time
16-bit +Flag
16-bit –Flag
16-bit +Time 32-bit -Flag The default frozen BC object variation
for requests with qualifier code 06 when
no specific variation is requested
DNP General Options
16-bit AI
Scaling Disabled
Enabled Enabled Allows scaling 16-bit analog input
objects (see description below)
16-bit BC
Scaling x1, x10, x100,
x1000 x1 Allows scaling 16-bit binary counter
objects (see description below)
Re-mapping
Event Points
Disabled
Enabled Disabled Allows re-mapping event points starting
with point 0.
SBO Timeout 1 2-30 sec 10 Defines the Select Before Operate
(SBO) timeout when using the Control-
Relay-Output-Block object
Time Sync
Period
2
0-86400 sec 86400 Defines the time interval between
periodic time synchronization requests
Multi Fragment
Interval 50-500 ms 50 Defines the time interval between
fragments of the response message
when it is fragmented
1 The Select Before Operate command causes the device to start a timer. The following Operate
command must be sent before the specified timeout value expires.
2 The device requests time synchronization by bit 4 in the first octet of the internal indication
word being set to 1 when the time interval specified by the Time Sync Period elapses. The
master should synchronize the time in the device by sending the Time and Date object to clear
this bit. The device does not send time synchronization requests if the Time Sync Period is set
to 0.
3 The total number of AI, BI and BC change event points may not exceed 64. When you
change the number of the change event points in the device, all event setpoints are
set to defaults (see Configuring DNP Event Classes below).
Scaling 16-bit AI objects
Scaling 16-bit AI objects allows accommodating native 32-bit analog input readings to
16-bit object format; otherwise it may cause an over-range error if the full-range value
exceeds a 16-bit point limit.
Scaling is enabled by default. It is not applied to points that are read using 32-bit AI
objects.
Refer to the SA300 DNP3 Reference Guide for information on the data point scales
and on a reverse conversion that should be applied to the received scaled values.