Item
Description
For
SP
, the value is specified in engineering units (EU).
Timestamps
PV Last
Processed
The date and time that the PV was last processed.
PV Last
Scanned
For OPC interfaces, the field timestamp for the value.
For non-OPC interfaces, the server timestamp when data was last received for this
parameter.
Alarms tab
Item
Description
PV Limit Alarms
Parameter
AL1, AL2, AL3, AL4, AL5, AL6 AL7, and AL8.
Type
You can configure up to eight alarms (AL1–AL8) for each analog point to indicate
when the PV goes beyond the limit you specify.
The types of PV limit alarms for analog points are:
n
PV High
n
PV HiHigh
n
RateOfChange
Limit
The value for each of the eight PV limit alarms at which the alarm is raised.
On Delay
(sec)
The delay time (in seconds) that must pass before an alarm is raised.
Off Delay
(sec)
The delay time (in seconds) that must pass before an alarm returns to normal
(RTN).
Priority
Lists the priority of the alarm.
Options, in order from the lowest priority, are:
n
Journal
n
Low
n
High
n
Urgent
If critical alarm support has been enabled, urgent priority alarms with a sub
Displaying detailed process information
Honeywell 2017
208
Содержание Experion LX
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Страница 77: ...Button Description toolbar Using faceplates Honeywell 2017 77 ...
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