8450

Internal PROFIsafe Initialization Error

ABB · AC500 Function Block Libraries

What does 8450 mean?

A critical internal error has occurred during the initialization sequence of the PROFIsafe functionality within the Safety PLC. This means the PLC cannot properly establish its safety-related communication and functions, making it unable to operate in a safe mode. The system's safety integrity is compromised from startup.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Contact ABB technical support for further diagnosis before replacing if unsure.

Source: ABB AC500 Function Block Libraries
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