SATEC PM180 Operation Manual User Manual

Page 114

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‎Chapter 10 Configuring Communication
Protocols

Configuring DNP3

112

PM180 Substation Automation Unit

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.

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