Raw Chromatogram Storage; Alarm Mask - ABB PGC2000 Operation And Service Manual

Raw Chromatogram Storage

When "Raw Chromatogram Storage:" appears as the main alarm, one or more chromatogram alarms
appears below the main alarm. Typical chromatogram alarms and their descriptions are:
* Memory Below 20%—activates when the memory pool used for chromatogram storage is below
20%.
* No Memory Left—activates when chromatogram storage has used all available memory.
* Current Analysis Save Aborted—activates when the GCC is unable to save the last chromatogram.
* Could Not Save Analysis—activates when the GCC is unable to save the last chromatogram.

Alarm Mask

The Alarm Mask screen has four selections for each alarm name: Alarm, Masked, Indicate, and
Warning.
Alarm
When the Alarm Mask screen has "Alarm" selected for a given alarm, an alarm condition will:
•
appear in the alarm pane of all connected RUIs;
•
set the Modbus coil to active (if the alarm has a designated Modbus coil)and will set the
associated Data Valid for reported stream to 0;
•
report the alarm to VistaSTORAGE (if the GC is configured to send reports to VistaSTORAGE);
•
report the alarm to VistaREPORTER (if the GC is configured to send reports to
VistaREPORTER);
•
report the alarm to the printer (if the GC is configured to send reports to a printer);
•
report the alarm to the OPC Server (if the GC is configured to send reports to the OPC Server).
The purpose of the Alarm setting is to invalidate the data and notify all users. Events suggested for
this setting are Flameout, Sample Flow, Temperature Alarm, Pressure Alarm, and any event that
would affect the accuracy of the analysis.
Masked
When the Alarm Mask screen has "Masked" selected for a given alarm, no alarm signals will be
generated.
The purpose of the Masked setting is to hide events considered to be a nuisance. Examples: (1) If a
user has a sensor that has gone bad, the event can be masked out until the sensor can be replaced,
or (2) if the user is getting communication alarms because an application is not running, the event can
be masked out.
Indicate
When the Alarm Mask screen has "Indicate" selected for a given alarm, an alarm condition will:
•
not appear in the alarm pane of all connected RUIs;
•
set the Modbus coil to active (if the alarm has a designated Modbus coil)but will not set the
associated Data Valid for reported stream to 0;
•
report the alarm to VistaSTORAGE (if the GC is configured to send reports to VistaSTORAGE);
2000-OSM, F1 6-39