19

CRC1-Fault

ABB · AC500 Function Block Libraries

What does 19 mean?

A Cyclic Redundancy Check (CRC1) fault has been detected in PROFIsafe communication, indicating data corruption during transmission between safety components. This means safety messages are not being received reliably, which could lead to incorrect safety decisions or commands. The integrity of safety-critical data is compromised.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If the fault persists, contact ABB technical support for further diagnostics, providing detailed network configuration.

Source: ABB AC500 Function Block Libraries
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