Yokogawa FieldMate - Manual (Page 20)

App.-1
IM 01R01A15-01EN 2nd Edition : 2013.11.07-00
Appendix A Aggregated Field Diagnostic
Alarms for FOUNDATION Fieldbus
Table Appendix A-1 describes all of the 32 Aggregated Field Diagnostic Alarms used for
Yokogawa products.
Table Appendix A-1 Aggregated Field Diagnostic Alarms (32-bit)
Alarm bit
Initial alarm
category
Label Description
31 F Electronics failure
An electric/electronic failure such as amplifier breakdown may have
occurred.
30 F Sensor/Actuator failure A sensor/actuator failure may have occurred.
29 F Potential failure
A device failure may have occurred, or abnormal settings, dirt, poor contact
of wiring and connectors, or poor board installation may have occurred.
28 F (Device specific failure alarm) Device-specific failure
27 F (Device specific failure alarm) Device-specific failure
26 F Backup function in operation
A breakdown has occurred in at least one system of redundant sensors.
The backup sensor is operating normally.
25 - (Reserved) (Reserved)
24 C Firmware update error
A firmware update error has occurred. The operation is being covered by
the existing firmware.
23 C Communication configuration error Communication setting is improper.
22 C Non-operating-state
Non-routine operations such as initialization, calibration, testing, or
maintenance are in progress.
21 C Calibration warning
The device is running with existing settings or abnormal calibration values
because the calibration was performed during an alarm condition.
20 C Device configuration error The settings of sensors or actuators are improper.
19 C Function restricted The device is running partially.
18 C Simulation mode The device is running in the simulation mode.
17 C Manual mode The device is running in the manual mode.
16 C Function Block notice A function block is in the “O/S” or “Unscheduled” state.
15 C (Device specific function check Device-specific function check alarm
14 - (Reserved) (Reserved)
13 S Sensor/Actuator out of range
The measured value of the sensor or the operating point of the actuator is
out of range.
12 S Out of operating limit The environment or operating condition is out of the specification.
11 S
(Device specific out of specification
alarm)
Device-specific out-of-spec alarm
10 - (Reserved) (Reserved)
9 M Temporal decrease of value quality
Although the accuracy satisfies the specification, the measured values are
temporarily unreliable due to degradation.
8 M
Deterioration estimated by Time
Based Maintenance
The operation time or the number of operations has exceeded the limit.
7 M
Deterioration estimated by Condition
Based Maintenance
The internal algorithm has detected an abnormality.
6 M
(Device specific maintenance
request alarm)
Device-specific “maintenance request” alarm
5 M
(Device specific maintenance
request alarm)
Device-specific “maintenance request” alarm
4 - (Reserved) (Reserved)
3 C Optional function configuration error
A setting of sub-functions is abnormal although it will not affect the main
measuring functions. Masking this alarm does not affect the operation of
the main functions.
2 - Alarm related information Supplementary information is displayed.
1 - Process alarm
A process alarm has occurred. This alarm may be caused by an
abnormality of devices or peripheral devices.
0 - CHECK CHECK