28714

F-device Mismatch of Parameter F_CRC_Length (V3 CPU)

ABB · PB610 Panel Builder 600 Programming Software

What does 28714 mean?

Parameter "F_CRC_Length" for F-device instance <n> in an AC500 V3 non-safety CPU PM56xx system does not match the generated values. This indicates a misconfiguration in the CRC length parameter for PROFIsafe communication, leading to data integrity errors.

Common Causes

  • Mismatch in the specified length of the F_CRC_Length parameter during communication.
  • Data packet length inconsistencies in PROFIsafe telegrams.
  • Error in the calculated CRC length for safety data.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the Safety PLC configuration for F-device instance <n> and the "F_CRC_Length" parameter.

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Verified technical data. Last updated: March 2026

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Source: ABB PB610 Panel Builder 600 Programming Software