8460

Flash Read Error

ABB · AC500 Function Block Libraries

What does 8460 mean?

An error was detected while the Safety PLC attempted to read data from its internal flash memory. This often indicates corruption of the stored firmware, configuration, or boot project, or a hardware defect in the flash memory itself. This can prevent the PLC from booting up, loading its program, or maintaining persistent data, risking system failure.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Contact ABB technical support if the issue remains unresolved after these steps.

Source: ABB AC500 Function Block Libraries
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