Alert Setup - Emerson Fisher FIELDVUE L2t Instruction Manual

Instruction Manual
D104782X012
Simulate provides enable/disable feature for simulation of alerts. Any alert can be simulated and viewed.
Status
Instrument alerts, when enabled, detect many operational and performance issues that may be of interest. If there are
no alerts currently active, Status is shown as GOOD on a green background. When the Status in BAD it will be seen on a
red background and the menu item may be expanded to display a list of active alerts, together with their PlantWeb
Alert categories, description, recommended actions, and, where applicable, helpful troubleshooting procedures,
images, or variable values.
Last Close Time is the value, in seconds, of when the position moved from the open state to the closed state.
Last Open Time is the value, in seconds, of when the position moved from the closed state to the open state.
Note
Closed state default is 10% of span. Open state default is 90% of span
Tag
Enter the Tag for the instrument (up to 8 characters). The Tag is the easiest way to distinguish between instruments in
a multi-instrument environment. Use the Tag to label instruments electronically according to the requirements of
your application.
Trends
Trend charts of the Primary, Secondary, Tertiary, and Quaternary Variables, plus Instrument Temperature and Loop
Current.

Alert Setup

Alerts, when enabled, detect many operational and performance issues that may be of interest. To view these alerts,
you must open the appropriate status screen on a host system.
User configured alerts are grouped into four categories consistent with NAMUR NE 107:
Failure: Transmitter output signal is invalid due to due to malfunction in the field device or its sensors.
Function Check: Output signal temporarily invalid (e.g. frozen) due to ongoing work on the device.
Maintenance Required: Although the output signal is valid, a function will soon be restricted due to operational
conditions.
Out of Specification: The device is operating outside its specified range or an internal diagnostic indicates deviations
from measured or set values due to internal problems in the device or process characteristics.
Note
Various alerts are defined alphabetically below.
Analog Output Fixed indicates that the output is in fixed current mode, not tracking process.
Analog Output Saturated indicates that the analog output is saturated at 3.6 mA or 21.5 mA.
Closing Stroke Time Deviation is active when the time it takes for the valve to move from the open state to the closed
state exceeds the defined Time Open Threshold. Disabled by default.
L2t Liquid Level Controller
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