Creating and editing tank points
ADM003GVAE1005 117
Other alarm types
Several additional alarms exist for each tank however these are not configured
from the Alarms Page. These alarms are defined in the Tank Digital Global Alarm
Definition. The default Tank Digital Alarms include:
• Database Configuration
• Tank Calculation Error
• Strap table Error
• API Correction Error
• Critical Zone
• Transfer Advisory Setpoint
• Transfer Advisory Shutdown
• Specialized alarms
These can be edited and applied to all tanks in the system. However you cannot
edit these alarms on a tank by tank basis.
Specialized alarms
The following tank alarms have special meaning, that may not be as easy to
understand as the simple level, temperature or process alarms. For this reason a
brief description of their functionality is given in the following table, for more
information please refer to the Glossary.
Edit Tank Data dialog box - Alarm tab - Specialized Alarms
MOVEMENT When the Tank Mode is set to Stopped, a Stop Level is
established at the current tank level. If the tank level
deviates from the Stop Level by the High Setpoint, a
Movement Alarm is generated
REVERSE FLOW When the Tank Mode is Fill and the Flow is negative or the
Tank Mode is Empty and the Flow is positive, a Reverse
Flow Alarm is generated
NO FLOW When the Tank Mode is set to Fill, Empty or Run, a Timer is
started. If the time exceeds the value configured under the
No Flow Alarm Hold off parameter and the flow is still zero,
a no Flow alarm is generated. The time is reset whenever
the flow value is not zero
TEST MODE When the Tank Mode is set to Testing, the Test Mode alarm
is generated.
ETA (ESTIMATED
TIME OF
ARRIVAL)
For each level alarm limit, and ETA is calculated. Whenever
the ETA is less than the Transfer Advisory Setpoint, the
corresponding ETA alarm is generated. ETA alarms are
suppressed when the ETA time is 0
To Next Page
Loading...