12.2 Diagnostic messages
The following table shows the IDs of diagnostic messages and possible causes and
instructions for corrective actions.
ID Symbols Message Cause/Remedy
A0 Event counter 1
Number overruns above
threshold
Maintenance alarm
The number of overruns of the process value (set in parameters "Upper
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A1 Event counter 1
Number underruns above
threshold
Process alarm
The number of underruns of the process value (set in parameters "Lower
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A2 Event counter 1
Number underruns above
threshold
Maintenance required
The number of underruns of the process value (set in parameters "Lower
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A3 Event counter 1
Number underruns above
threshold
Maintenance alarm
The number of underruns of the process value (set in parameters "Lower
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A4 Event counter 2
Number overruns above
threshold
Process alarm
The number of overruns of the process value (set in parameters "Upper
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A6 Event counter 2
Number overruns above
threshold
Maintenance required
The number of overruns of the process value (set in parameters "Upper
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A7 Event counter 2
Number overruns above
threshold
Maintenance alarm
The number of overruns of the process value (set in parameters "Upper
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
A8 Event counter 2
Number underruns above
threshold
Process alarm
The number of underruns of the process value (set in parameters "Lower
limit" and "Monitored value") has reached the threshold.
Reset and acknowledge event counter.
Check process conditions.
Check limit monitoring and event counter settings.
Diagnostics and troubleshooting
12.2 Diagnostic messages
SITRANS P320/P420 (mA/HART)
184 Operating Instructions, 06/2018, A5E44852162-AA
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