Variable Diagnosis: SE Crashes when external Timestamp minus Time Deviation to UTC is negative

Variable Diagnosis: SE Crashes when external Timestamp minus Time Deviation to UTC is negative

Summary

Service Engine terminates unexpectedly if in the variable diagnosis screen the external timestamp minus time deviation from UTC is negative.

Description

Issue if in the variable diagnosis screen the list shows the column with the external timestamp. Reproducible during the first hour after the IED start if the IED is not time-synchronized and communicates via a protocol that always provides time information (e.g. IEC 61850). The issue affects systems even if the IED time quality informs about the missing clock synchronization. CEL and AML display external time information correctly, but the variable diagnosis screen can cause the Service Engine to terminate unexpectedly.

This issue has been fixed in the microsecond evaluation function call with a small input value.

To benefit from this fix:

  • Update your zenon Software Platform to the latest build of zenon 11 or higher.


Item ID: 274301
Version: 12.00 Build: 206562
Version: 11.00 Build: 205374