KUKA external Fan Condition monitoring

  • I have KSS version 8.3.32,currently we have encounter external fan failures and for that i want to start External fan health monitoring.To monitor the Health i thought of checking its RPM,after searching i found that $CAB_FANSPEED can be used.But after using this variable it returns the value zero.It turns out that the variable is of no use in systems manufactured after 2011.Is there any way in which i can check the External fan health??

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