February 2012 18 – 245
Message
Hardware/firmware
change detected
If the 24 V power of an HSCI component is already missing on power-on, the HSCI bus system does
not detect this component.
The message Hardware/firmware change detected is displayed during startup.
Example:
During startup, the 24 V NC supply is missing at X3/terminal 1 of a PLB 62xx.
The PLB 62xx is not detected by the HSCI bus system.
The following message appears:
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