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Quality
Bad
Uncertain
R400
Experion PKS Series A Fieldbus Interface Module User's Guide
July 2010
Substatus
Non-Specific
Configuration Error
Not Connected
Device Failure
Sensor Failure
No Communication,
with last usable value
No Communication,
with no usable value
Non-Specific
Last Usable Value
Substitute
Initial Value
Sensor Conversion
Not Accurate
Engineering Unit
Range Violation
Honeywell
12.2. Substatus Definitions for Quality Status
Description
There is no specific reason why the value is
bad. Used for propagation.
Set if the value is not useful because there is
some other problem with the block,
depending on what a specific manufacturer
can detect.
Set if this input is required to be connected
and is not.
Set if the source of the value is affected by a
device failure.
Set it the device can determine this condition.
The Limits define which direction has been
exceeded.
Set if this value had been set by
communication, which has now failed.
Set if there has never been any
communication with this value, since it was last
Out of Service.
There is no specific reason why this value is
uncertain. Used for propagation.
Whatever was writing this value has stopped.
(This happens when a configurer disconnects
an input.)
Set when the value is written when the block is
Out of Service.
Set when the value of an input parameter is
written while the block is Out of Service.
Set if the value is at one of the sensor limits.
The limits define which direction has been
exceeded. Also, set if the device can
determine that the sensor has reduced
accuracy, in which case no limits are set.
Set if the value lies outside of the range of
values defined for this parameter. The limits
define which direction has been exceeded.
12. Appendix C
503
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