FloBoss 407 Instruction Manual
Rev 5/00 2-3
The primary inputs used for the turbine metering flow measurement function are meter pulse input,
static pressure, and temperature. These inputs typically come through I/O modules installed on the
FloBoss 407. The flow calculation is in accordance with AGA Report No. 7. The flow calculation may
be configured for either Metric or English units.
2.2.1.2 History Points
A total of 50 history points may be set up and accessed in the FloBoss 407. The first six or eight are
pre-configured for flow history on Meter Run #1 (required for EFM reporting). These points can be
changed if needed. The time stamp for periodic logging consists of the month, day, hour, and minute.
The exception is for FST Second logging, in which the time stamp consists of the day, hour, minute,
and second.
The FloBoss has a minute historical log for every history point. The Minute Historical Log stores the
last 60 minutes of data from the current minute. Each history point has Minute Historical Log entries
unless the history point is configured for FST-controlled logging.
The FloBoss has a total of 840 hourly historical logs available for every history point. The Hourly
Historical Log is also called the Periodic Log. Normally, the Hourly Log is recorded every hour at the
top of the hour. The exception is for FST-controlled logging.
The FloBoss has a total of 35 daily historical logs for every history point. The Daily Log is recorded at
the configured contract hour every day with a time stamp that is the same as the Hourly Log. Each
history point has daily historical log entries unless the history point is configured for FST-controlled
logging.
2.2.1.3 Alarm and Event Logs
Alarm and event logs are stored in non-volatile RAM in the FloBoss. Note that they are not stored to
flash ROM when the Save Configuration function is used in the ROCLINK Configuration Software.
The Alarm Log records instances when exceptions from field inputs and calculations occur. The
system Alarm Log has the capacity to maintain and store up to 240 alarms in a “circular” log. The
alarm log has information fields which include time and date stamp, alarm clear or set indicator, and
either the tag name of the point which was alarmed with the current value or a 14 ASCII character
description.
In addition to providing functionality for appending new alarms to the log, it allows host packages to
request the index of the most recently logged alarm entry. Alarm logging is available internally to the
system, to external host packages, to FSTs, and to User C programs. Alarm Logs are not stored to the
flash ROM during the ROCLINK Save Configuration function. The Alarm Log operates in a circular
fashion with new entries overwriting the oldest entry when the buffer is full. The alarm log provides an
To Next Page
Loading...
