YOKOGAWA FLEXA SENCOM FLXA202 - Page 51

<6. In-process operation>
6-2
IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
Update Alerts
(Generated when a important (restorable) parameter is updated)
By Resource Block Update Event
By Sensor Transducer Block Update Event
By AI1, AI2, AI3 Blocks Update Event
Field Diagnostic Alerts
(Generatedwhenanabnormalconditioninelddeviceisdetected)
ByResourceBlockCheckAlarm,FailureAlarm,MaintenanceAlarm,ando󰀨specication
Alarm.
An alert has following structure:
Table 6.1 Alert Object
Subindex
Parameter Name Explanation
Analog
Alert
Discrete
Alert
Update
Alert
Field
Diagnostic
Alert
1 1 1 1 Block Index Index of block from which alert is generated
2 2 2 2 Alert Key Alert Key copied from the block
3 3 3 3 Standard Type Type of the alert
4 4 4 4 Mfr Type
AlertNameidentiedbymanufacturerspecicDD
5 5 5 5 Message Type Reasonofalertnotication
6 6 6 6 Priority Priority of the alarm
7 7 7 7 Time Stamp Timewhenthisalertisrstdetected
8 8 8 Subcode Enumerated cause of this alert
9 9 9 Value Value of referenced data
10 10 10 Relative Index Relative index of referenced data
8 Static Revision Value of static revision (ST_REV) of the block
11 11 9 Unit Index Unit code of referenced data
11 Source Block Index Relative index of the block that triggered the alert
n Standard categories for NAMUR NE-107 instrument diagnostics
alarms
ThefollowingstandardcategoriesofinstrumentdiagnosticsaredenedfortheNAMURNE-107.
F (Failed):
An alarm category that indicates a failure has occurred in the instrument or in its peripheral
devices.
C (Check Function):
An alarm category that indicates that a detected failure is a temporary event.
S(O󰀨Specication):
An alarm category that indicates that the detected failure was caused by the instrument being
used outside of its range or because a discrepancy has occurred between the set value and
measured value. The alarm was caused either by the instrument or process state.
M (Maintenance):
An alarm category for a detected failure that has a low level of urgency but is a failure that could
develop into a problem causing restrictions in instrument functionality in some environments.