E2-2

Internal PROFIsafe Initialization/Operation Error

ABB · AC500-S Safety

What does E2-2 mean?

The SM560-S Safety PLC has encountered a fundamental internal error during PROFIsafe initialization or general PROFIsafe operation. This critical fault indicates a problem with the safety communication stack, preventing safe operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Contact ABB technical support.

Source: ABB AC500-S Safety
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