Future Design MCTB 4.3, Руководство пользователя

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MCTB
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Time Period
Adjusts the displayed time period for the graph. The allowable range is from 4 to
1440 minutes (24 hours).
Maximum The maximum value sets the maximum range of the vertical access with a minimum
value of -32,760 and a maximum of 32,760.
Minimum The minimum value sets the minimum range of the vertical access with a minimum
value of -32,760 and a maximum of 32,760.
Automatic Scale When on, the vertical axis will automatically adjust its zero and span as needed to
display the selected plot channels.
Once all settings have been made, press the “Return” button to return to the channel selection screen. Press
the “Save” button to store the current channel and axis entries or the “Cancel” button to exit chart setup without
altering the current chart settings. If channel selections or the time period for the chart has changed, all current
chart data will be cleared when the new entries are saved. The chart will then begin plotting new data according
to the new settings.
5.7 System Alarms
When an alarm condition occurs, the alarm icon flashes in the MCTB icon bar to provide a visual indication of
an alarm condition. An audible alarm will also sound if the alarm requires immediate operator attention such
as a loop communications failure or a process alarm set point has been exceeded. For more information on
adjusting the audible alarm volume, see section
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NOTE: The MCTB loop controls can provide up to 3 alarm outputs each (for a total of 9 alarms). Depending
upon the configuration of the MCTB, some outputs may perform specific control or event functions.
The use of each output, and what it controls, is determined by the system designer. If there are
questions or concerns about the configuration and operation of your MCTB controller, contact your
OEM for further information. Only your OEM can address equipment related issues.
For information on alarm operation, see section 9.2 Alarms .
5.7.1 Alarm Monitor
The Alarm screen is accessed from the home
“View” menu. It can also be displayed by pressing the alarm icon
whenever a new alarm occurs. It displays all current and/or previously acknowledged alarms according to time
and date of occurrence. Once the alarm is reset, the alarm icon will be hidden; however, the alarm condition
may still be present.