Vigilantplant TDLS8000, User Manual

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<9. Inspection and Maintenance>
9-43
IM 11Y01D01-01EN
(5) Calibration is complete.
NOTE
When analog output calibration is complete, the 20 mA fixed output is released, and normal
analog output returns. At this point, the AO loop check simulation output is also released. For
example, if analog output calibration is executed while AO-1 loop check is in progress, when the
calibration is complete, AO-1 returns to normal output.
9.11 Loop Check
See “5.4 Loop Check (Simulation output)”.
9.12 Alarm History
You can view the history of alarms (faults and warnings) that occurred in the past. In addition, if
an non-alarm event shown in Table 9.1 occurs, it is recorded as a message.
Menu path:
[HART] “Diagnosis/Service>>Logbook>>Read alarm/message record”
[YH8000] “ >>Log Book>>Alarm History”
The information displayed in the alarm history is as follows.
• Times when faults and warnings occur and clear
• Times when messages occur
• Sub numbers of alarm messages (only for certain alarms and messages)
These numbers are used by Yokogawa service representatives for troubleshooting
purposes. The numbers are displayed in HART and the YH8000.
You can view up to 30 events using HART and 99 events using the YH8000. For an explanation
of the YH8000 alarm history screen, see “8.5.5 Alarm History Screen”.
For details on faults and warnings, see “10.
Troubleshooting”.
Items recorded as messages are shown in the following table.
3rd Edition: Jun. 10, 2016-00