Technical FAQs

Ask a Question

Workaround definition for the issue defined in PRB-207753: Issue on “S_GUARD_LOCKING “ Function Block V1.00 from the Libset of UnityPro XLS V13.0 .

In following conditions of use in a safety section application , 

 
 
 
 
 
 
with the inputs "S_SafetyActive" = False and "UnlockRequest" = True, the output "S_UnlockGuard" becomes TRUE which is not the expected behavior, S_UnlockGuard should be False until the hazardous area is declared safe : S_SafetyActive = True .

A new version of S_GUARD_LOCKING V1.01 will be delivered in the hotfix “UnityPro_V130_HF2”.
 
Until the UnityPro_V130_HF2 hotfix becomes available, we propose as workaround this modification into the application code :
 
It's important to note that output “S_UnlockGuard” of the function block must not be used anymore. Please, use the output of the function block “S_OR_BOOL” instead of the output “S_UnlockGuard” of the function block .
 
Important: after the installation of the new version V1.01 of the new function block “S_UnlockGuard”, the function block has to be used as “BEFORE”, without the additional modification described above for the workaround.
 
If you need more information please contact your country support.

 
Was this helpful?
What can we do to improve the information ?