Process Variable Fault Action
specifies the values that will be reported via the display and digital
communications if the device encounters a fault condition. The values are also sent to the outputs for
processing against their configured fault actions.
Procedure
Set
Process Variable Fault Action
as desired.
•
Default: None
Restriction
If you set
Process Variable Fault Action
to NAN, you cannot set
mA Output Fault Action
or
Frequency
Output Fault Action
to None. If you try to do this, the transmitter will not accept the configuration.
Important
•
If you want the mA Output to continue reporting process data during fault conditions, you must set both
Process Variable Fault Action
and
mA Output Fault Action
to
None
. If
mA Output Fault Action
is set to
None
and
Process Variable Fault Action
is set to any other option, the mA Output will produce the signal
associated with the selection.
•
If you want the Frequency Output to continue reporting process data during fault conditions, you must set
both
Process Variable Fault Action
and
Frequency Output Fault Action
to
None
. If
Frequency Output
Fault Action
is set to
None
and
Process Variable Fault Action
is set to any other option, the Frequency
Output will produce the signal associated with the selection.
6.6.1 Options for Process Variable Fault Action
Label
Description
Display
ProLink III
Field Communicator
Upscale
Upscale
Upscale
•
Process variable values indicate that the
value is greater than the upper sensor limit.
•
Totalizers stop incrementing.
Downscale
Downscale
Downscale
•
Process variable values indicate that the
value is lower than the lower sensor limit.
•
Totalizers stop incrementing.
Zero
Zero
IntZero-All 0
•
Flow rate variables go to the value that
represents a flow rate of 0 (zero).
•
Density is reported as
0
.
•
Temperature is reported as
0°C
, or the
equivalent if other units are used (e.g.,
32°F
.
•
Drive gain is reported as measured.
•
Totalizers stop incrementing.
Configuration and Use Manual
Configure advanced options for process measurement
MMI-20048166
April 2019
Configuration and Use Manual
77