Chapter 5 Configuring the PM130 PLUS Configuring Communication Protocols
PM130 PLUS Powermeter Series_Installation Operation and Manual 117
Allows scaling 16-bit analog input objects (see description
below)
Allows scaling 16-bit binary counter objects (see
description below)
Defines the Select Before Operate (SBO) timeout when
using the Control-Relay-Output-Block object
Defines the time interval between periodic time
synchronization requests
Defines the time interval between fragments of the
response message when it is fragmented
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 related to points that are read using 32-bit AI objects.
Refer to the PM130 DNP3 Reference Guide for information on the data point scales and a reverse
conversion that should be applied to the received scaled values.
Scaling 16-bit Binary Counters
Scaling 16-bit Binary Counters allows changing a counter unit in powers of 10 to accommodate a 32-bit
counter value to 16-bit BC object format.
If the scaling unit is greater than 1, the counter value is reported being divided by the selected scaling unit
from 10 to 1000. To get the actual value, multiply the counter reading by the scaling unit.
The Select Before Operate command causes the meter to start a timer. The following Operate command must be sent before
the specified timeout value expires.
The meter 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 meter by sending the Time
and Date object to clear this bit. The meter does not send time synchronization requests if the Time Sync Period is set to 0.
To Next Page
Loading...
