Schweitzer Engineering SEL-2032, Instruction Manual

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4.3
Date Code 20120126 Instruction Manual SEL-2032 Communications Processor
SEL
OGIC
Control Equations
Inputs
Status
Information
Along with their meter information, some SEL relays provide status
information, which includes bits for self-test failures and new events. These
bits are stored in the SEL-2032 as part of the relay element data. Use the
TARGET command once a port is configured to see what SEL relay special
elements are available. These items are selected the same way as SEL relay
elements.
Database
Bits as Elements
Arbitrary database bit references allow any bit of any register within any
database region to be referenced as a SEL
OGIC
control equation term. To
specify an element of this type, you must select the port number, register
number, and bit number. For example, to access bit 11 of register 800Fh on
Port 12, use the element label: 12:800Fh:Bh. If the register does not exist
when you select it, you will be warned, but the term will be accepted. If it does
not exist when SEL
OGIC
control equations run, it will be treated as false
(logical 0).
Timed Conditions
For controlling operations that must occur at specified times or periodically,
you may use time-of-day or periodic items. Time-of-day equation entries have
the following syntax:
This portion of an equation is true when the specified time-of-day occurs. The
minutes, seconds, and tenths-of-seconds fields are optional, as indicated by
the square brackets. To make something occur periodically, use a periodic
item:
This item specifies the interval, optional start time, and optional stop time.
The minutes, seconds, and tenths-of-seconds fields for all three time fields are
optional, as indicated by the square brackets. For all three time fields the
interval specifies how often to perform an operation. The start time specifies
the time-of-day to start the interval. If the start time is not included, it defaults
to 00:00:00.0. The stop time specifies the time-of-day to stop the periodic
samples. It defaults to 24:00:00.0. Both of these timed conditions will be true
for approximately 100 milliseconds. If a start time is specified with a smaller
time increment than the periodic time interval, the start time acts as an offset.
This may be useful to prevent simultaneous operation of multiple messages
that could result in database delays.
Thh[:mm[:ss[.x]]]
Time
Seconds
Hours Minutes
Phh[:mm[:ss[.x]]][ ;hh[:mm[:ss[.x]]][ ;hh[:mm[:ss[.x]]]]]
Periodic
Stop Time
Time Interval
Start Time
NOTE
: Because the SEL-2032 can
only sample relay elements, you
should only use elements you are
confident will be asserted when a
sample occurs. Elements that are only
asserted momentarily will probably
not be seen by the SEL-2032 in their
asserted state. To use them, you need
to use the capabilities of the SEL relay
to extend the element assertion time
so it can be seen by the SEL-2032.
Courtesy of NationalSwitchgear.com