Yokogawa EJA440E - Manual (Page 74)

<4. Diagnostics>
4-27
IM 01C25T01-06EN
Table 4.6 HART Configuration Tool Error Messages
Error message Probable cause Countermeasure
Invalid selection — Change the setting.
Value was too high Set value is too high.
Value was too low Set value is too low.
Too few data bytes received — —
In write protect mode Operation is set in the Write Protect mode. —
Lower range value too high LRV set point is too high. Change the range.
Lower range value too low LRV set point is too low.
Upper range value too high URV set point is too high.
Upper range value too low URV set point is too low.
Span too small Set span is too small.
Applied process too high Applied pressure is too high. Adjust the applied pressure.
Applied process too low Applied pressure is too low.
New lower range value pushed upper
range value over upper sensor limit
The shift of URV according to the new LRV
setting exceeds USL.
Change the URV setting within the
range of USL.
Excess correction attemted Amount of correction is too much. Adjust the amount.
Lower conversion not succeeded Characters are not convertible. e.g. % Correct the setting.
Not in fixed current mode The fixed current mode is desired but not
set in that mode.
Set in the fixed current mode.
In multidrop mode Operation is set in the multi-drop mode. —
Not write protect mode Operation is set without a password. —
Lower range value and upper range
value out of limits
URV and LRV are out of range limits. Change the setting.
Table 4.7 Device Status
Item Description
Field Device Malfunction
(0x80)
Field device has
malfunctioned due to a
hardware error or failure.
Configuration Changed
(0x40)*
A modification has been
made to the configuration
of the field device.
Cold Start
(0x20)
A reset of the field device
has occurred, or power
has been removed and
reapplied.
More Status Available
(0x10)
Field device has more
status available.
Loop Current Fixed
(0x08)
Analog output and its
digital representation
are in fixed mode, and
not responsive to input
changes.
Loop Current Saturated
(0x04)
Analog output and its
digital representation are
outside the operating
range limits, and not
responding to input.
Non-Primary Variable Out
of Limits
(0x02)
Process applied to the
non-primary variable is
outside the operating
limits of the field device.
Primary Variable Out of
Limits
(0x01)
Process applied to the
primary variable is outside
the operating limits of the
field device.
*: This flag can be reset. Refer to subsection 4.1.3 (6) Reset
Configuration Changed Flag
Table 4.8 Extended Device Status
Item Description
Maintenance Required
(0x01)
Device requires
maintenance.
Device Variable Alert
(0x02)
Configuration is invalid or
device is under simulation
mode.
Table 4.9 Data Quality and Limit Status
Data Quality Description
Good The value may be used in
control.
Poor Accuracy The quality of the value is
less than normal, but the
value may still be useful.
Manual / Fixed The value is manually
fixed.
Bad The value is not useful.
Limit Status Description
Constant The value cannot be
changed, no matter what
the process does.
Low Limited The value is out of the
high or low limit.
High Limited
Not Limited
The value is free to
change.