Alert Handling - Fisher FIELDVUEDVC6200f Instruction Manual

DVC6200f Digital Valve Controller
Field Diagnostic Alerts
February 2017

Alert Handling

Alert handling is diagrammed in figure C‐1. There are two ways of seeing Field Diagnostic alerts. One way is to see if
the instrument alert condition causing the alert is detected. The second is to view alerts reported to the system
operator console. For a Field Diagnostic alert to be active, it has to pass four tests.
d The Instrument alert condition is enabled. If a condition is not enabled, the instrument does not check for the alert
condition.
d The condition that will cause an alert must exist. For example, the current travel is above the Travel Limit Hi Alert
Point.
d The corresponding Field Diagnostic alert must be enabled in one or more of the four categories: Failed, Function
Check, Out of Specification, or Maintenance Required.
d The transducer block mode must be correct. See table C‐1.
Note
Additional details on setting up and using Instrument Alerts can be found on page 54 of this manual.
Figure C‐1. Alert Handling
Set Alert Points
and Deadband in
the Transducer
Block
ALERT
CONDITION
START "
ENABLED?
No
B
NO ACTIVE INSTRUMENT
ALERT CONDITION
NOTE:
1 CERTAIN FIELD DIAGNOSTIC ALERTS ARE MODE‐BASED.
SEE TABLE C‐1 FOR DETAILS.
184
Enable Instrument
Alert Condition in
the Transducer
Block
Yes
Yes
LIMITS EXCEEDED TO
"
"
CAUSE ALERT?
No
A
Enable Field
Diagnostic Alert
in the Transducer
Block
INSTRUMENT Yes
ALERT
"
ALERT
ENABLED?
CONDITION
ACTIVE
NO ACTIVE
FIELD DIAGNOSTIC
ALERT
Instrument Alert
Conditions active,
but not reported
Instruction Manual
Use Resource and Transducer
Block Parameters to Configure
1
Yes
Yes
TRANSDUCER
"
BLOCK MODE
AUTO
No
No
B
REPORT
No
ALERTS?
Yes
B
B
No
PRIORITY
>1?
Yes
B
B
SUPPRESS
Yes REPORTING
A
ALERT
CONDITION?
B No
FIELD DIAGNOSTIC
ALERTS REPORTED
D103412X012
FIELD
DIAGNOSTIC
"
ALERT ACTIVE
Select "Reports
Supported" from
FEATURE_SEL in the
Resource Block
Set Priority with Field
Diagnostic Alarm
Priority parameters in
Transducer Block using
DeltaV
Suppress Alert
Condition Reporting
with Alarm Suppress
Parameters in
Transducer Block