Status Propagation; Limit Propagation - Fisher FIELDVUE DVC6200f Instruction Manual

F fieldbus Communication
OUNDATION
July 2013
Table D‐3. Status Attribute Quality and Substatus Components
Quality
Good (NC)
Good (NC)
Good (NC)
Good (NC)
Good (NC)
Good (NC)
Good (NC)
Uncertain
Uncertain
Uncertain
Uncertain
Uncertain
Uncertain
Uncertain
Good (C)
Good (C)
Good (C)
Good (C)
Good (C)
Good (C)
Good (C)
Good (C)
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
(NC)=(Non‐cascade) (C)= (Cascade)

Status Propagation

The transducer block accepts the output from the AO block or DO block if the output parameter status is Good
(Non‐cascade) or Good (Cascade). When the AO or DO block is Out of Service the output parameter status is Bad. In
this case, the transducer block holds the last value.
If the transducer block actual mode is Out of Service, the AO block READBACK parameter status is Bad-Out of Service.
This could be caused by a Failed Alert. If a Failed Alert is active, the block error parameter (parameter name
BLOCK_ERR) for the Resource block will indicate Device Needs Maintenance Now. For more information on the
Resource and Transducer block error indications, refer to the Viewing Device Information section of this manual.
If the transducer block is functioning correctly the AO block READBACK parameter status is Good
(Non‐cascade)-Non‐specific. If a Maintenance or Advisory alert is active the substatus will reflect a Unacknowledged or
Active advisory alert. When a Maintenance or Advisory alert is active, the block error for the resource block indicates
Device Needs Maintenance Soon.

Limit Propagation

The following describes limit propagation:
292
Substatus
Non‐specific
Active Block Alarm
Active Advisory Alarm
Active Critical Alarm
Unack Block Alarm
Unack Advisory Alarm
Unack Critical Alarm
Non‐specific
Last Usable Value
Substitute/Manual Entry
Initial Value
Sensor Conversion not Accurate
Engineering Unit Range Violation
Sub‐normal
Non‐specific
Initialization Acknowledge
Initialization Request
Not Invited
Not Selected
Local Override
Fault State Active
Initiate Fault State
Non‐specific
Configuration Error
Not Connected
Device Failure
Sensor Failure
No Comm, with LUV
No Comm, no LUV
Out of Service
Instruction Manual
D103412X012