19

CRC1-Fault (V2 CPU)

ABB · PB610 Panel Builder 600 Programming Software

What does 19 mean?

A CRC1-Fault has occurred in an AC500 V2 non-safety CPU PM5xx system. This indicates a data integrity error during PROFIsafe communication, suggesting corruption of safety-critical data telegrams.

Common Causes

  • A CRC1 error has been detected during internal V2 CPU processing.
  • Data integrity issue within the CPU's memory or registers.
  • Hardware fault within the V2 CPU.
  • Corrupted program data.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the safety PLC configuration.

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Verified technical data. Last updated: March 2026

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Source: ABB PB610 Panel Builder 600 Programming Software