Operator control functions via PROFIBUS
7.9 Diagnostics functions
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
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To adjust the calibration and service interval, proceed as follows:
1. Set the parameter for warning/alarm.
2. Give the time interval after which a warning is output.
3. Give the additional time interval after which an alarm is output.
As soon as the warning interval is past, the first monitoring level emits a warning. Measured
values have the status "Good, Maintenance request". The "Maintenance request"
diagnostics alarm is also displayed. SIMATIC PDM can also display the status for calibration
or service and the value of the timer.
To clear a warning, proceed as follows:
1. Clear the warning.
The diagnostic message is deleted and the status set back to "Good".
2. Perform the calibration or service.
3. Reset the timer.
If you don't perform calibration or service on time, the second monitoring level emits an
alarm which again draws attention to the urgent need for service. Measured values are
accompanied by the status "Unsure, value inexact" and the diagnostic message "Service
required" is displayed.
To clear an alarm, proceed as follows:
1. Clear the alarm.
The diagnostic message is deleted and the status set back to "Good".
2. Perform the calibration or service.
3. Reset the timer.
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